3 years ago

What is 5a-7a(3a+b+5c-12ab)

1 answer:

6 0

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At the same time that a 60-foot tall building casts a shadow that is 21.5 feet long, a nearby tree casts a shadow that is 18 fee

OLga [1]

(60/21.5)*(18) = 50.23 . . . answer is likely 50 feet tall

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4 years ago

The perimeter of the rectangle below is 90 units. find the length of side vy . write your answer without variables.

Salsk061 [2.6K]

The picture in the attached figure

we know that
perimeter of a rectangle=2*[base+height]
base=3y+1
height=2y+3
perimeter=90 units
so
90=2*[(3y+1)+(2y+3)]-----> 90=2*[5y+4]----> 10y+8=90----> y=8.2 units

base=3y+1-----> base=3*8.2+1-----> 25.6 units
height=2y+3----> height= 2*8.2+3---> 19.4 units

the answer is
<span>the length of side vy is (2y+3)-----> 19.4 units</span>

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3 years ago

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The answer is

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3 years ago

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What unbalanced force is required to accelerate a 1500 kg race car at 3.00 m/s/s?

AfilCa [17]

Answer:166.66

Step by step explanation

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3 years ago

jonathan has a collection of 400 marbles. Blue marbles make up17%, percent of his collection. How many blue marbles does Jonatha

dsp73

17% of 400 is 68.
Another way u can do it is 17% of 100 four times since its easier to do.
17% of 100 is 17.
we have to do this 4 times since 100 goes into 400 four times.
So 17*4 =68

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3 years ago

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