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2 years ago

Rose can run 4 miles in 56 minutes how many miles does Rosa run if she runs for 42 minutes

Mathematics

2 answers:

sdas [7]2 years ago

5 0

Answer:

At the same rate Rose will run 3 miles in 42 minutes.

Step-by-step explanation:

Hint- This problem ca be solved using Unitary method.

This Here given that, Rose can run 4 miles in 56 minutes.

i.e Rose in 56 minutes can run 4 miles.

So Rose in 1 minutes can run $\dfrac{4}{56}$ miles.

So Rose in 42 minutes can run $\dfrac{4}{56}\times 42=3$ miles.

Therefore, if Rose can run 4 miles in 56 minutes, she will run 3 miles in 42 minutes.

kogti [31]2 years ago

4 0

$\frac{56}{42} = \frac{4}{x}$ then you figure out what you divide 56 by to get 4. which is 14. then you divide 42 by the same number 14.

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Point I is on line segment HJ. Given I J equals 3X +3, HI equals 3X-1, and HJ equals 3X +8, determine the numerical length of HJ

Nezavi [6.7K]

Answer:

Step-by-step explanation:

3x + 3 + 3x - 1 = 3x + 8

6x + 2 = 3x + 8

3x + 2 = 8

3x = 6

x = 2

HJ= 3(2) + 8 =6 + 8 = 14

HI= 3(2) - 1 = 6 - 1 = 5

IJ = 3(2) + 3 = 6 + 3 = 9

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2 years ago

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The volume of the prism shown is 72in^3 what is the volume of a pyramid with the same base length, base width, and height?

monitta

Explanation: If a pyramid and a prism have the same base and height, their volumes are always in the ratio of 1:3 . As volume of prism is 108 cubic meters, volume of pyramid is 13×108=36 cubic meters.

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2 years ago

GIVING 100 POINTS!!!!

IrinaK [193]

Answer:

As per dot plots we see the distribution of prices is close but majority of prices are concentrated in different zones. So MAD would be more similar by the look.

Let's verify

<h3>Neighborhood 1</h3>

Data

55, 55, 60, 60, 70, 80, 80, 80, 90, 120

Mean

(55*2+ 60*2+ 70+ 80*3 + 90+ 120)/10 = 75

MAD

(20*2+15*2+5+5*3+15+45)/10 = 15

<h3>Neighborhood 2</h3>

Data

100, 110, 110, 110, 120, 120, 120, 140, 150, 160

Mean

(100 + 110*3+ 120*3+ 140 + 150+ 160)/10 = 124

MAD

(24+14*3+4*3+16*3+16+26+36)/10 = 20.4

As we see the means are too different (75 vs 124) than MADs (15 vs 20.4).

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2 years ago

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A triangle with vertices at A(0, 0), B(0, 4), and C(6, 0) is dilated to yield a triangle with vertices at A′(0, 0), B′(0, 10), a

Vesnalui [34]

Answer:

2.5

Step-by-step explanation:

A triangle ABC with vertices A(0, 0), B(0, 4), and C(6, 0) is dilated to form a triangle A'B'C' with vertices A′(0, 0), B′(0, 10), and C′(15, 0). If the center of dilation is point A or A' (the origin), then

$\dfrac{A'B'}{AB}=\dfrac{A'C'}{AC}.$

Since

AB=4;
A'B'=10;
AC=6;
A'C'=15,

then the scale factor of the dilation is

$k=\dfrac{10}{4}=\dfrac{15}{6}=2.5.$

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2 years ago

Last year there were 120 students in choir. This year, 30% more students took choir. How many students are taking choir this yea

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Answer:

120 into a third and divide and the answer

Step-by-step explanation:

160

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2 years ago