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3 years ago

Solve 2r ≤ 3(2r - 7)

1 answer:

riadik2000 [5.3K]3 years ago

7 0

2r ≤ 3(2r - 7)
2r ≤ 6r - 21
21 ≤ 6r - 2r
21 ≤ 4r
21/4 ≤ r
r $\geq$ 21/4
r $\geq$ 5.25

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Solve the equation -5 = c/7

sweet-ann [11.9K]

Multiply both sides by 7.

-5 * 7 = c/7 * 7

-5 * 7 = c

c = -35

Your final answer is c = -35.

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3 years ago

Read 2 more answers

12.6% of RI 149 390bn

galina1969 [7]

Answer: RI 18,823.14

Step-by-step explanation:

I guess that we want to find the 12.6% of Rl 149,390

First, we assume that Rl 149,390 is the 100%

Then we can write an equation like:

Rl 149,390 = 100%

Then if the amount X is the 12.6%, we also have the equation:

X = 12.6%

Then we have the two equations:

X = 12.6%

Rl 149,390 = 100%

If we take the quotient between these two equations we get:

(X/Rl 149,390) = (12.6%/100%)

Solving this for X we get:

X = (12.6%/100%)*(Rl 149,390) = RI 18,823.14

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3 years ago

What is the coefficient of the term 12p12p12, p in the expression 12p+ 9q12p+9q12, p, plus, 9, q?

klio [65]

Answer:

the coefficient is 12

Step-by-step:a numerical or constant quantity placed before and multiplying the variable in an algebraic expression explanation:

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3 years ago

What is the justification for each step in solving the inequality?

Fed [463]

Step-by-step explanation:

$3x+\frac{5}{8}\geq 4x-\frac{1}{2}$

Subtract 5/8 on both sides

To subtract 5/8 we make the denominators same

$3x\geq 4x-\frac{1*4}{2*4}-\frac{5}{8}$

Addition or Subtraction property of order is used

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Subtract 4x on both sides

Addition or Subtraction property of order is used

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Now divide both sides by -1

Multiplication or Division property of order is used

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3 years ago

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JulsSmile [24]

Answer:

I think its 8

Step-by-step explanation:

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3 years ago