3 years ago

Martin can run 1 mile in 7 minutes wjat do u write it in proportions

Mathematics

1 answer:

Vikki [24]3 years ago

3 0

Answer:

1:7

Step-by-step explanation:

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Use the system of equations to answer the question. <br> 2x+3y=8<br> x-y=5

Digiron [165]

Answer:

x=5+y

2(5+y)+3y=8

10+2y+3y=8

2y+3y=8-10

5y= -2

y= -2/5

x-(-2/5)=5

x+2/5=5

x=5-2/5

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3 years ago

K=1/2 mv squared, determined m when v=30 and k=4500.

WITCHER [35]

Given the expression:

$\text{ k = }\frac{1}{2}mv^2$

At v = 30 and k = 4,500 , let's determine m.

$\text{ k = }\frac{1}{2}mv^2$ $\frac{2k}{v^2}\text{ = m }\rightarrow\text{ m = }\frac{2k}{v^2}$

We get,

$\text{ m = }\frac{2k}{v^2}$ $\text{ = }\frac{2(4,500)}{(30)^2}$ $\text{ = }\frac{9,000}{900}$ $\text{ m = 10}$

Therefore, m = 10.

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2 years ago

Measuring the speed of sound in the ocean is an important part of marine research. One application is the study of climate chang

dalvyx [7]

Answer:

A linear formula for S as a function of D is S=17D+1534

Step-by-step explanation:

We are supposed to find a linear formula for S as a function of D.

Equation of line : y = mx+c

We are given that At the surface, the speed of sound is 1534 meters per second.

c = 1534

We are given that for each increase in depth by 1 km, the speed increases by 17 m/s

So, Slope = m = 17

Substitute the values in equation

y=17x+1534

x denotes depth

y denotes speed

We are given that Use D for depth and S for the speed of sound

So, S=17D+1534

Hence a linear formula for S as a function of D is S=17D+1534

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3 years ago

Find area of 12 inches by 5 inches

tigry1 [53]

Answer:

60 inches

Step-by-step explanation:

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4 years ago

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stepladder [879]

Minus 12 over 16 and 12 over 16

There you go!

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3 years ago

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