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2 years ago

15

Write an equation by setting the variable n equal to the given decimal . n =

1 answer:

frez [133]2 years ago

4 0

Answer:

n+4.7=7.3

-4.7 -4.7

n=2.6

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Leah drives her truck 270KM in the same time Deborah drives her car 250KM. If Leah drives 4km/h faster than Deborah. What is eac

patriot [66]

Answer:

Leah: 54km/h

Deborah: 50 km/h

Step-by-step explanation:

250+4x=270

4x=20

x=5

both drove 5 hours

Deborah:

250/5=50km/h

Leah:

270/5=54km/h

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3 years ago

How do I solve this problem

Arlecino [84]

Answer:

-6

Step-by-step explanation:

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2 years ago

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Does the Pythagorean theorem work for any unit of measure?

Orlov [11]

Yah units doesn't affect the theorem

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3 years ago

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Find an equation of variation where y varies jointly as x and the square of z, and where y=70, when x=21 and z=5.

Bezzdna [24]

Answer:

$y = 181.75xz^2$

Step-by-step explanation:

Given

y jointly varies to x and z^2

Required

Find the equation

We start by writing out the variation;

$y\ \alpha\ xz^2$

Write as equation

$y = kxz^2$

Substitute values of x,y and z

$70 = k * 21 * 25^2$

$70 = k * 21 * 25 * 25$

$70 = k * 13125$

Divide both sides by 7

$\frac{70}{13125} = \frac{k * 131251}{13125}$

$\frac{70}{13125} = k$

$187.5 = k$

$k = 181.75$

Substitute k in $y = kxz^2$

$y = 181.75xz^2$

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2 years ago

The Rally family has 3 types of pets: cats, dogs, and horses. Their total number of pets is 12. The ratio of cats to dogs to hor

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Answer:

4

I multiplyed them all by two and then added them to see f it equaled 12 and it did

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2 years ago