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2 years ago

Sam lives 3.5 times farther from school than Sara does. Sam lives 13.3 miles from school. How far from school does Sara live?

Mathematics

2 answers:

maria [59]2 years ago

6 0

Answer:

Sara lives 3.8 miles away from the school

Explanation:

Sam lives 3.5 times farther than Sara

Sam lives 13.3 miles away from school

Opposite of multiplication is division, so we must divide to see how far away Sara lives from the school

13.3 ÷ 3.5 = 3.8

Sara lives 3.8 miles away from the school

Andreyy892 years ago

4 0

Let distance of Sarah from school = x
Distance of sam from school = 3.5x or 13.3

=> 3.5x = 13.3
X = 13.3/ 3.5
X = 3.8

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3 years ago

A. Write an expression for the area of the shaded region.

tekilochka [14]

Answer:

A. $25x² - 64$

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Step-by-step explanation:

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= (5x*5x) - 4(4*4)

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B. The expression, $25x^2 - 64$ , is the difference of two perfect squares, 25x² and 64. Therefore, apply the rule of factoring difference of two perfect squares.

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2 years ago

Ab and bc form a right angle at point B. if a= (-3,-1) and B= (4,4) what is the equation of BC?

Vesnalui [34]

Answer:

Option C $-7x-5y=-48$

Step-by-step explanation:

step 1

Find the slope of AB

we have

A(-3,-1) and B(4,4)

The slope m is equal to

$m=(4+1)/(4+3)$

$m=5/7$

step 2

Find the slope of BC

we know that

If two lines are perpendicular, then the product of their slopes is equal to -1

$m1*m2=-1$

we have

$m1=5/7$

substitute

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step 3

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we have

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substitute

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Multiply by 5 both sides

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Multiply by -1 both sides

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2 years ago

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Alona [7]

Answer:

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2 years ago

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8 0

3 years ago

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