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maxonik [38]
3 years ago
15

What does a equal? a/15 = 4/5?

Mathematics
2 answers:
ratelena [41]3 years ago
6 0
So in order to solve this we are going to cross multiply:
 a     4
--- = --
15    5   so what were are going to do is we will take a and multiply it with 5 and we will take 15 and multiply it with 4. Now this gives us 5a and 60 so our new equation is:
5a = 60 now we are going to get our variable alone by dividing it by 5 and what we do on one side of the equation we do on the other:
5a = 60
÷5    ÷5 this gives us a=12
hope this answer helps
Rudik [331]3 years ago
3 0

\frac{a}{15} = \frac{4}{5}
Multiplying each side by 15 gives;
a=\frac{4}{5} *15
a=12
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3 years ago
A 26-foot ladder is placed against a house and reaches the 24-foot roof. What is the distance between the base of the ladder and
hammer [34]

Answer:

The distance from the base of the ladder to the base of the house is 10ft

Step-by-step explanation:

From the question, we can gather that the ladder makes a right angle shape with the wall of the house.

The length of this ladder which represents the hypotenuse of the right angled triangle is 26ft while the height of the house to the roof is 24ft

To calculate the distance between the base of the ladder and the base of the house, we shall be employing the use of Pythagoras’ theorem which states that the square of the hypotenuse equals the sum of the square of the 2 other sides

We have established that the hypotenuse is the length of the ladder which is 26ft

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3 years ago
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Step-by-step explanation:

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8 0
3 years ago
Martin can run 1 mile in 7 minutes. What valid proportions can be written from this information? Check all that apply. StartFrac
Tpy6a [65]

Answer:

<u>1/7=3/21</u>

<u>7/1=21/3</u>

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Step-by-step explanation:

Let me know if you need any other help:)

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3 years ago
Read 2 more answers
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