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3 years ago

Kate ran 4200 meters in 30 minutes. How many meters did Kate run each minute?

Mathematics

2 answers:

bogdanovich [222]3 years ago

8 0

Answer:

140 meters

Step-by-step explanation:

4200 / 30 = 140

Andreas93 [3]3 years ago

4 0

Answer: She ran 140 meters every minuet.

Step-by-step explanation:

4200/30 = 140

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What is the equation of a line passing through (-3,7) and having a slope of -1/5<br> PLEASE HELP

OLEGan [10]

Answer:

y = -1/5x +32/5

Step-by-step explanation:

The slope intercept form of the equation of a line is

y = mx+b

we know m = -1/5

y = -1/5x+b

We know a x and y on the line

7 = -1/5(-3) +b

7 = 3/5 +b

Subtract 3/5 from each side

35/5 -3/5 = b

32/5 =b

So the equation is

y = -1/5x +32/5

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2 years ago

What is 13.5/10 simplified

andrezito [222]

Answer:

27/20

Step-by-step explanation:

$\frac{13.5}{10} = \frac{13.5 * 2}{10 * 2} = \frac{27}{20}$

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2 years ago

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A submarine dives at an angle of 13 degrees to the surface of the water. The submarine travels at a speed of 760 feet per minute

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3 years ago

2.2.PS-8 Find the value of x when 6 - 4x = 6x - 8x + 8. The value of x is

Bess [88]

Answer:

X = -1

Step-by-step explanation:

6 - 4x = 6x - 8x + 8

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2 years ago

A = √7 + √c and b = √63 + √d where c and d are positive integers.

mrs_skeptik [129]

Answer:

$\displaystyle a:b=\frac{1}{3}$

Step-by-step explanation:

<u>Ratios </u>

We are given the following relations:

$a=\sqrt{7}+\sqrt{c}\qquad \qquad[1]$

$b=\sqrt{63}+\sqrt{d}\qquad \qquad[2]$

$\displaystyle \frac{c}{d}=\frac{1}{9} \qquad \qquad [3]$

From [3]:

$9c=d$

Replacing into [2]:

$b=\sqrt{63}+\sqrt{9c}$

We can express 63=9*7:

$b=\sqrt{9*7}+\sqrt{9c}$

Taking the square root of 9:

$b=3\sqrt{7}+3\sqrt{c}$

Factoring:

$b=3(\sqrt{7}+\sqrt{c})$

Find the ration a:b:

$\displaystyle a:b=\frac{\sqrt{7}+\sqrt{c}}{3(\sqrt{7}+\sqrt{c})}$

Simplifying:

$\boxed{a:b=\frac{1}{3}}$

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3 years ago