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3 years ago

Math question 6r + 7 = 13 +7r

Mathematics

1 answer:

uranmaximum [27]3 years ago

8 0

Step-by-step explanation:

6r + 7 = 13 + 7r

6r - 7r = 13 - 7

-1r = 6

r = 6/-1

r = -6

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Which inequality correctly compares 2/5, 1/8, and 5/7

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Answer:

second or last

Step-by-step explanation:

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2 years ago

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You and three friends buy 4 movie tickets. Each person buys a $3 popcorn. The total cost is $72. Letx represent the cost of 1 mo

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4x + 12 = 72
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3 years ago

I need helppp asap 7x+3=4x-9

Vesnalui [34]

Answer: -4

Step-by-step explanation: Hello! :) To get started we need to use the equation 7x+3=4x-9, First, we need to subtract 4x from both sides to get 3x+3=-9, then we need to subtract 3 on both sides to get 3x=-12, Finally, we need to divide both sides by 3 to get x = -4. So x = -4.

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4 years ago

Copy and complete. PLEASE SOLVE IT FAST thanks

Setler79 [48]

Answer:

(a) Increased by 100%

(b) Increased by 50%

(c) Decreased by 33.33%

(d) Decreased by 50%

(e) Increased by 200%

(f) Decreased by 66.67%

Step-by-step explanation:

In this question, we can use the following <em>formula</em>:

$\text{Percentage Change =} \dfrac{\text{New value - Old Value}}{\text{Old Value}} \times 100$

Positive value of percentage change means increase and

Negative value of percentage change means decrease.

Solution a)

Old Value = 1

New Value = 2

$\text{Percentage Change =} \dfrac{\text{2 - 1}}{\text{1}} \times 100\\\Rightarrow 100\%$

Increase of 100%

Solution b)

Old Value = 2

New Value = 3

$\text{Percentage Change =} \dfrac{\text{3 - 2}}{\text{2}} \times 100\\\Rightarrow 50\%$

Increase of 50%.

Solution c)

Old Value = 3

New Value = 2

$\text{Percentage Change =} \dfrac{\text{2 - 3}}{\text{3}} \times 100\\\Rightarrow -33.33\%$

Decrease of 33.33%.

Solution d)

Old Value = 2

New Value = 1

$\text{Percentage Change =} \dfrac{\text{1 - 2}}{\text{2}} \times 100\\\Rightarrow -50\%$

Decrease of 50%.

Solution e)

Old Value = 1

New Value = 3

$\text{Percentage Change =} \dfrac{\text{3 - 1}}{\text{1}} \times 100\\\Rightarrow 200\%$

Increase of 200%.

Solution f)

Old Value = 3

New Value = 1

$\text{Percentage Change =} \dfrac{\text{1 - 3}}{\text{3}} \times 100\\\Rightarrow -66.67\%$

Decrease of 66.67%.

So, the answer is:

(a) Increased by 100%

(b) Increased by 50%

(c) Decreased by 33.33%

(d) Decreased by 50%

(e) Increased by 200%

(f) Decreased by 66.67%

6 0

4 years ago

Find the greatest common factor (GCF) of 16 and 56.

sertanlavr [38]

Answer:

GCF is 8

16 + 56

= 8(2 + 7)

Step-by-step explanation:

Here, we want to write the greatest common factor of 16 and 56

The greatest common factor is 8

We can use tie rewrite the sum as follows ;

16 + 56 = 8(2 + 7)

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3 years ago