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taurus [48]
3 years ago
7

Can some one solve for r please 15r-6r=36

Mathematics
2 answers:
EleoNora [17]3 years ago
8 0

Answer:

r=6

Step-by-step explanation:

Divide both sides by 6

myrzilka [38]3 years ago
7 0

Answer:

R=4

Step-by-step explanation:

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Five notebooks cost $20 at this rate how much would 4 notebooks coat?
vagabundo [1.1K]

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$16

Step-by-step explanation:

if 5=20 then 20÷5=4 and 4x4=16

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Which postulate or theorem can be used to prove the triangles are congruent?
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ASA

Step-by-step explanation:

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A parallelogram cant be a cross section of a triangular prism? never true,sometimes true,or always true
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3 years ago
A triangle has a side length of 5.4 and 7 x x=​
Burka [1]

Answer:

D. 8.8

Step-by-step explanation:

As the pythagorean theorem.

A² + B² = C²,

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4 0
3 years ago
25 is what percent of 20?
denis-greek [22]

Answer:

20 is 80% of 25

Step-by-step explanation:

We assume, that the number 25 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 100% equals 25, so we can write it down as 100%=25.

4. We know, that x% equals 20 of the output value, so we can write it down as x%=20.

5. Now we have two simple equations:

1) 100%=25

2) x%=20

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

100%/x%=25/20

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 20 is what percent of 25

100%/x%=25/20

(100/x)*x=(25/20)*x       - we multiply both sides of the equation by x

100=1.25*x       - we divide both sides of the equation by (1.25) to get x

100/1.25=x

80=x

x=80

8 0
3 years ago
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