A car travelled 80km in 48minutes. find the speed of the car in km/hr
Answers
80km / 48 min = 1 2/3 km per minute.
1 2/3 km per minute x 60 minutes(1 hour) = 100 km per hour
Related Questions
Helppppp meee pleaseeee
Answers
Answer:
D. No, the input value x = -5 pairs with two output values
Step-by-step explanation:
A function is a relationship between two variables such that for every value of x, there is one value of y. The x value -5 pairs with both -8 and 7, giving it more than one value of y.
. Model with Math Dani's neighbors paid
her to take care of their bird during their
vacation. Dani spent $4 of her earnings on
an afternoon snack and $16 on a new book.
Afterward, she had at least $8 left. Write
an inequality to represent how much Dani's
neighbors paid her.
Answers
Answer:
x-4-16≥8
x≥28
Step-by-step explanation:
If you use x to begin with the unknown payment. then take away what you know was spent ($4,$16) and you have at least $8 left, x would have to be greater than or equal to 28
how do you tell if these fractions are equivalent? 2/3 and 8/12.
Answers
Answer:
Multiply 2/3 by 4 to make it have the same denominator.
Step-by-step explanation:
This could work for all fractions, you just need to get them to have the same denominator.
Ps. If you were wondering, they are equivalent.
A trucker wanted to track how long it took to reach Bismarck. When she started out, her clock
read 7:00AM. When she refueled, the clock read 8:00AM. After reaching Bismarck, the clock read
10:00AM. How many hours did it take this trucker to reach Bismarck?
Answers
Answer:
Below
Step-by-step explanation:
From 7 to 10 AM is THREE hours (if the times are all on the same day)
A recent poll found that 35% of those surveyed are worried about aggressive drivers on the road. If three people are selected at random, what is the probability that all three will be worried about aggressive drivers on the road?
Answers
The probability that all three people surveyed is an independent probability and the calculated probability is 0.1225
The probability a surveyed driver is worried = 35%
P(worried) = 0.35 Number of people surveyed = 3Since the probability of being worried is independent ;
Probability = P(A) × P(B) × P(C)The probability that all 3 surveyed are worried :
P(worried) × P(worried) × P(worried) (0.35 × 0.35 × 0.35) = 0.1225Therefore, the probability that all three people surveyed are worried is : 0.1225
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SHARE 300 USING 2:3:5
Answers
If we divide 300 into parts using the ratio 2:3:5, we get:
2 parts = 2/10 of the total ratio = 2/10 x 300 = 60
3 parts = 3/10 of the total ratio = 3/10 x 300 = 90
5 parts = 5/10 of the total ratio = 5/10 x 300 = 150
Therefore, 300 divided in the ratio 2:3:5 would result in three parts of 60, 90, and 150.
I hope I helped!
~~~Harsha~~~
In each rule , copy the chart and fill in the missing parts
Answers
Answer:
7. 14
15. 30
28. 56
32. 64
18 36
x 2x
1/2y. y
2x. 4x
x+3 2x+9
Step-by-step explanation:
each out is double the in
What is the product of 3.6 x 4.2
How did you find it.
Answers
Answer:
15.12
Step-by-step explanation:
3.6 x 4.2
first aline the decmials like you would regularly do to multiply.
Then multiply 2 x 6=12 and then 2 x 3=6 and put them down were you would already do noramly multiplying.
and then muliply 4x6=24 and 4x3=12 and do the same thing as you would do normaly and then add 72 and 144 to get 1512 and then count your decmail placing. which is 2 placeing in total which makes 1512 into 15.12
and now you done!
Example of how it should look...
3 . 6
× 4 . 2
+ 7 . 2
+ 1 4 4
= 1 5 1 2
The denominator of a rational number is greater than the numerator by 10. If the numerator is
increased by 1 and the denominator is decreased by 1, then find the
original rational number.
answer with steps for more points
ANSWER ASAP
Answers
The expression for the original rational number is; x/(x + 10)
How to solve algebraic expressions?Let the numerator be x
Therefore, according to given condition, the denominator will be expressed as; (x + 10)
According to question If the numerator is increased by 1 and the denominator is decreased by 1, then new numerator is; x + 1
New denominator is (x + 10 - 1) = (x + 9)
Thus, the original rational number will be expressed as;
x/(x + 10)
The new rational number will be : (x + 1)/(x + 9)
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-8= t/27 t=??????????
Answers
Answer:
t = -216
Step-by-step explanation:
-8 = t/27
Multiply both sides by 27
-216 = t
Volume with fractions is confusing.
Answers
Answer:
V≈0.064
Tip:
just to help you for future note with finding volume with fractions is you use a calculator and do the top divided by the bottom and it should give you a decimal
The annual tuition at a specific college was $20,500 in 2000, and $45,4120
in 2018. Let x be the year since 2000, and y be the tuition. Write an
equation that can be used to find the tuition y for x years after 2000. Use
your equation to estimate the tuition at this college in 2020.
Answers
y = 20500 + 24090(x - 1) can be used to find the tuition y for x years after 2000. The tuition at this college in 2020 was $5,02,300.
We assume that the rate of increase in the cost of tuition fee per year is linear and hence the tuition fees of subsequent years will be in an Arithmetic Progression. The formula for determining the nth term of an arithmetic sequence which is expressed as-
Tn = a + (n - 1)d
Where
a = first term of the sequence.
d = common difference.
n = number of terms in the sequence.
According to the question,
a = $20500 (amount in 2000)
From 2000 to 2018, the number of terms is 19, hence,
n = 19
Thus, T19 = 454120
Therefore,
4,54,120 = 20500 + (19 - 1)d
454120 - 20500 = 18d
18d = 433620
d = 433620/18
d = 24,090
Therefore, the equation that can be used to find the tuition y for x years after 2000, is as follows-
y = 20500 + 24090(x - 1)
Now, the number of terms between 2000 and 2020 is 21, hence
x = 21
y = 20500 + 24090(21 - 1)
y = 20500 + 481800
y = $502300
Therefore, the tuition at this college in 2020 was $5,02,300.
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I need the answer fast pls
Answers
Answer:
C. A = 0.5*d1*d2
D. A = bh
Step-by-step explanation:
The area of the rhombus can be found depending on what information is made available to us.
If given the lengths of the two diagonals (d1 and d2) of a rhombus which bisect each other, therefore, the formula for finding the area would be:
A = 0.5*d1*d2
Also, if we are given the height (h) and side (b), the formula to use would be:
A = bh
find the number of ways that the digit 0,1,2and3 can be permuted to give rise to a number greater than 2000
Answers
12 or 128
by the way question is not complete
the answer is 128 , if repetition is allowed
and answer is 12 , if repetition is not allowed
please explain how you get your answer!! Thanks :) questions below:
What is the simplified expression for 4^-3 x 3^4 x 4^2/3^5 x 4^-2
A. 3/4
B. 4/3
C. 4^2/3
D. 3^3/4
Answers
Step-by-step explanation:
4^2/3
but I got 4^-3/3
hope help ful
considering the equation -x -7y =14. I need to find a line parallel to this line that would have a slope of ??, and also find a line perpendicular to this line, would have a slope of ??
Answers
This equation is n the general form of the equation of a line, right? In order to rewrite it in the slope intercept form, we have to manipulate it. Let's go:
\(-x\text{ -7y = 14 is given. We want to rewrite it as y = mx +b, which is the slope intercept equation. So, -7y = x +14}\)Multiplying both sides by (-1), we'll have 7y = -x - 14
Now we divide both sides by 7,
y = -1/7x - 2. So, m, the slope of this line is -1/7, ok?
Two parallel lines have the same slope, thus, the slope of a parallel line will also be -1/7.
Two perpendicular lines have reciprocal negative slopes, so -1/7 = +7.
In a random survey of 50 students at Great Middle school,32 said chocolate was their favorite flavor of yogurt.The school has 450 students.How many of them are likely to select chocolate as their favorite flavor?
Answers
Answer:
288 I think
Step-by-step explanation:
450 divided by 50 is 9
9 times 32 is 288
I might be wrong
just in case
sorry!
Match each multiplication expression on the left with the best estimate of its product on the right. (80)(30) = 2,400 29.3 x 5.9 81.4 x 32.1 32.9 x 4.81 46.7 x 31.7 59.3 x 3.57 (30)(6) = 180 (30)(5) = 150 (60)(4) = 240 (50)(30) = 1,500 Done
Answers
Here is the final matching of multiplication expressions with their estimated products:
(80)(30) = 2,400
(30)(6) = 180
(30)(5) = 150
(60)(4) = 240
(50)(30) = 1,500
29.3 x 5.9 ≈ 173
81.4 x 32.1 ≈ 2,618
32.9 x 4.81 ≈ 158
46.7 x 31.7 ≈ 1,479
59.3 x 3.57 ≈ 212
Match each multiplication expression on the left with the best estimate of its product on the right:
(80)(30) = 2,400
(30)(6) = 180
(30)(5) = 150
(60)(4) = 240
(50)(30) = 1,500
29.3 x 5.9
81.4 x 32.1
32.9 x 4.81
46.7 x 31.7
59.3 x 3.57
Matching the expressions with their estimated products:
(80)(30) = 2,400
(30)(6) = 180
(30)(5) = 150
(60)(4) = 240
(50)(30) = 1,500
Estimates for the remaining expressions:
29.3 x 5.9 ≈ 173.27
81.4 x 32.1 ≈ 2,612.94
32.9 x 4.81 ≈ 158.05
46.7 x 31.7 ≈ 1,480.39
59.3 x 3.57 ≈ 211.46
Matching the expressions with their estimated products:
(80)(30) = 2,400
(30)(6) = 180
(30)(5) = 150
(60)(4) = 240
(50)(30) = 1,500
29.3 x 5.9 ≈ 173.27
81.4 x 32.1 ≈ 2,612.94
32.9 x 4.81 ≈ 158.05
46.7 x 31.7 ≈ 1,480.39
59.3 x 3.57 ≈ 211.46
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The regular price of a chair is $175.90. Find the sale price of the chair
If the regular price is reduced by 10 %, and the new price is then reduced by 15%
Answers
Answer:
134.56
Step-by-step explanation:
I believe the sale price for the chair would be 134.56 hope this helps
Answer:
$ 134.56
Step-by-step explanation:
Regular price = $175 .90
Reduction = 10% of 175.90
= 17.59
Price after reduction = 175.90 - 17.59 = $ 158.31
Second reduction = 15% of 158.31
= 0.15 * 158.31
= 23.7465
= $ 23.75
New price = 158.31 - 23.75
= $ 134.56
The value of a machine depreciates at the rate of 10% per annum. It was purchased 3 years ago. If its present value is Rs 43740, find its purchase price.
pls anwer in details! no spam...
Answers
Given
present value of the machine : Rs 43,740Rate of depreciation per annum : 10%To find
Purchase value of the machine ( 3 years before )Let the purchase value be P,
ATQ,
P -3 x 0.1P = Rs 43,740
P-0.3P = Rs 43,740
0.7P = Rs 43,740
P = Rs 43,740/0.7
P = Rs 62,486 (approx)
Hence, the purchase value of the machine would be Rs 62,486
Circle 1 has center (−6, 2) and a radius of 8 cm. Circle 2 has center (−1, −4) and a radius 6 cm.
What transformations can be applied to Circle 1 to prove that the circles are similar?
Enter the scale factor as a fraction in simplest form.
The circles are similar because the transformation rule (_ , _) can be applied to Circle 1 and then dilate it using a scale factor of (_/_)
Answers
Answer
its scale factor is 4/3 and 0.75
Step-by-step explanation:
PLEASE HELPP ASAPPP pleaseeeee
Answers
answer: 28561^2in the area involves multiplying by the 4 sides of the shaded square and the shaded is the colored square.
distance between points on a coordinate plane=(y2−y1)2+(x2−x1)2−−−−−−−−−−−−−−−−−−√
Find the distance when y2=9, y1=13, x2=4,
and x1=0
.
A. 5.66
B. 5.36
C. 4.12
D. 6.95
Answers
The distance between the two points is approximately 5.66 units
A. 5.66How to find the distanceUsing the formula for the distance between two points on a coordinate plane:
Distance = √[(y2 - y1)^2 + (x2 - x1)^2]
We can plug in the given values into the distance formula:
given that
y2 = 9, y1 = 13, x2 = 4, and x1 = 0
= √[(9 - 13)^2 + (4 - 0)^2]
= √[(-4)^2 + (4)^2]
= √(16 + 16)
= √32
= 4√2
= 5.6569
= 5.66
Therefore, the distance between the two points is approximately 5.66 units, which corresponds to option A.
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Help please!!! 113 is 60% of what number? If necessary, round your answer to the nearest hundredth.
Answers
Answer:
188.33
Step-by-step explanation:
113 = .6n Divide both sides by .6
188.33 = n Rounded to the nearest hundredth.
Helping in the name of Jesus.
i need help asap for math.
Answers
I need help with this math problem please help.
Answers
Answer:
A
Step-by-step explanation:
since the shaded area is before x=-3 and x=-3 is a dashed line, x<-3 is the answer for x. That knocks out half the answers. the slope intercept form for the other line is y=-x-1. The answer with the slope as y would be the answer for the second half. A has both answers correct. (sorry for bad explaination, I am not a native speaker)
Find the difference between the actual quotient and the estimated quotient of 54,114÷29 . (Dividend is rounded off to nearest thousand and divisor to nearest ten)
Answers
The difference between the actual quotient and the estimated quotient of 54,114 ÷ 29 is approximately 66.3448275862068965517241379.
To find the difference between the actual quotient and the estimated quotient of 54,114 ÷ 29, we need to first calculate the actual quotient and then the estimated quotient.
Actual quotient:
Dividing 54,114 by 29, we get:
54,114 ÷ 29 = 1,866.3448275862068965517241379 (approximated to 28 decimal places)
Estimated quotient:
Rounding the dividend, 54,114, to the nearest thousand gives us 54,000. Rounding the divisor, 29, to the nearest ten gives us 30. Now, we can perform the division with the rounded values:
54,000 ÷ 30 = 1,800
Difference between actual and estimated quotient:
Actual quotient - Estimated quotient = 1,866.3448275862068965517241379 - 1,800 = 66.3448275862068965517241379
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I need this please help me
Answers
m < a = 105
m < b + 105 = 180
m < b = 75
the top of an electric pole is s supported by a wire of 26 ft long on the ground level. how far is tightened spot from the foot of the pole if its height is 24 ft?
Answers
Answer:
The tightened spot is 10 feet away from the foot of the pole.
Step-by-step explanation:
1. Draw the diagram. Notice that the shape of the electric pole and its supporting wire creates a right triangle.
2. We know 2 side lengths already (26ft, 24ft), and we need to find 1 more side length. Therefore, to find the 3rd side length of a right-triangle, utilize Pythagoras' Theorem.
⭐What is the Pythagoras' Theorem?
\((C)^2 = (A)^2 + (B)^2\)An equation to find a 3rd side lengthC = hypotenuseA = one legB = another leg3. Substitute the values of the side lengths into the equation, and solve for the unknown side length.
Let B= the distance from the tightened spot to the foot of the pole.
\((C)^2 = (A)^2 + (B)^2\)
\(26^2 = 24^2 + B^2\)
\(676 = 576 + B^2\)
\(100 = B^2\)
\(\sqrt{100} = \sqrt{(B)^2}\)
\(10 = B\)
∴ The tightened spot is 10 feet away from the foot of the pole.
Diagram:
Lois and her team used the number of red candies in a
small 9 ounce bag to predict the number of red candies in
a large 33 ounce bag. If Lois counted 12 red candies in the
small bag, Predict the number of red candies in the large bag.
Use proportional reasoning and show algebraic work.
Answers
Using proportional reasoning, we can predict that there will be 40 red candies in the large bag.
Using proportional reasoning, we can set up and solve the following equation to determine the number of red candies in the large bag:
P = Proportion of red candies in the large bag
R = Red candies in the small bag
R × (33/9) = P
12 × (33/9) = P
P = 40 red candies in the large bag
Therefore, using proportional reasoning, we can predict that there will be 40 red candies in the large bag.
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