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3 years ago

-x/11 - 13 = -1 --- what does "x" equal

Mathematics

2 answers:

ludmilkaskok [199]3 years ago

7 0

Answer:

$x = -132$

Step-by-step explanation:

Step 1: Add 13 to both sides

$-\frac{x}{11} + (-13 + 13) = (-1 + 13)$

$-\frac{x}{11} = 12$

Step 2: Multiply both sides by -11

$-\frac{x}{11} * (-11) = 12* (-11)$

$x = -132$

Answer: $x = -132$

Vitek1552 [10]3 years ago

4 0

-132 i think is the correct answer

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15 points Please explain and answer the problem asap thanks so much!

FromTheMoon [43]

Answer:

24 1/7

Step-by-step explanation:

4x + 3x - 8 = 90

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x = 10 5/7

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3 years ago

PLEASE ANSWER ASAP! Five tickets to a carnival cost $45. How much would seven tickets cost?

Svetllana [295]

45 (price of them) divided by 5 (the amount of tickets) = £9
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3 years ago

Ian needs to replace two concrete sections in his sidewalk, as modeled below. Each section is 36 inches by

fredd [130]

Answer: $19.5

Step-by-step explanation:

Hi, to answer this question we have to apply the next formula:

Volume of a rectangular prism = width x length x height

Replacing with the values given:

Since 1= 1/12 foot

36 in /12 = 3 foot (length and wifth)

4 in /12 = 1/3 foot (height)

V = 3 x 3 x 1/3 = 3ft3

Next, we multiply it by 2 (since there are 2 sections):

3 x 2 = 6 ft3

Finally we multiply it by the cost of each cubic foot:

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4 0

3 years ago

Hey please help, thank you!!

marin [14]

Answer:

Step-by-step explanation:

So we have the equation:

$A=\frac{1}{2}(12)(3+7)$

And we want to find out which of the answer choices is not equivalent.

Thus, let's go through each of the choices.

We have:

$\frac{12(3+7)}{2}$

This is correct.

Our original equation can be written as:

$A=\frac{1}{2}(\frac{12(3+7)}{1})$

And if we multiply straight across:

$A=\frac{12(3+7)}{2}$

We'll get choice A. So choice A is correct.

We have:

$6(3+7)$

This is also correct.

From our original equation:

$A=\frac{1}{2}(12)\cdot(3+7)$

If we multiply the first term together:

$A=6(3+7)$

We'll get choice B. So, choice B is correct.

We have:

$0.5(12)(10)$

This is correct as well.

If we reduce 1/2 to decimal form and add the operations within the parentheses in the original equation, we will get:

$A=\frac{1}{2}(12)(3+7)\\A=0.5(12)(10)$

So, C is also correct.

We have:

$\frac{12}{2}\times\frac{10}{2}$

Note that this is not correct.

This attempted to use the distributive property. However, the distribute property does not work for multiplication. For instance:

$3(2+1)\text{ indeed equals } 3(2)+3(1)$

However:

$3(2\times1)\text{ does not equal} 3(2)\times3(1)$

So, choice D is not equivalent.

So choice D is our answer :)

If we evaluate it, we will get 30, in contrast to the 60 of the others.

5 0

3 years ago