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3 years ago

Whats the simplest form of this? 2(10) + 2(x – 4) HELP ME PLS!!!!!!!!!!

Mathematics

1 answer:

barxatty [35]3 years ago

5 0

Answer:

12+2x

Step-by-step explanation:

2(10)+2(x-4) Remember Distributed Property so...

2(10)+2x-8 times everything on the right side of the equation by 2

then work the left side

20+2x-8 becomes

20-8+2x becomes

12+2x now if you need to solve for x take 12/2 and that gives you x=6

Hope this helps!

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Jane has a pre-paid cell phone with Splint. She can't remember the exact costs, but her plan has a monthly fee and a charge for

yan [13]

Answer:

The costs of the plan are $0.15 per minute and a monthly fee of $39

Step-by-step explanation:

Let

x ----> the number of minutes used

y ----> is the total cost

step 1

Find the slope of the linear equation

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have the ordered pairs

(100,54) and (660, 138)

substitute

$m=\frac{138-54}{660-100}$

$m=\frac{84}{560}=\$0.15\ per\ minute$

step 2

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=0.15\\point\ (100,54)$

substitute

$y-54=0.15(x-100)$

step 3

Convert to slope intercept form

Isolate the variable y

$y-54=0.15x-15\\y=0.15x-15+54\\y=0.15x+39$

therefore

The costs of the plan are $0.15 per minute and a monthly fee of $39

6 0

3 years ago

La suma de los cuadrados de dos enteros positivos consecutivos es 761. Cuales son los números?

PilotLPTM [1.2K]

Answer:

19 al cuadrado suma 20 al cuadrado es 761

Step-by-step explanation:

8 0

3 years ago

What is the surface area of the cylinder with the height of 6ft and the radius of 6ft. round your answer to the nearest thousand

Damm [24]

2.7 is the answer you should get help

7 0

3 years ago

Riday<br> The x-intercepts of y = 5 (1 + 4) (x - 3)<br> are<br> and<br> NEED HELP ASAP

nikklg [1K]

The answers are -4 and 3 :)

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3 years ago

Macy’s buys a pair of Cole Haan dress shoes wholesale for $90. If Macy’s marks up the price 20%, and tax is 9%, how much did Nor

stich3 [128]

Answer:

Norman bought the shoes for $117.72

Step-by-step explanation:

In order to find the answer to this question, start by multiplying the cost by the markup.

$90 * 20% = $18.

Now we add the $18 to the original price.

$90 + $18 = $108

Now that we have the mark up price, we need to do the same using the tax.

$108 * 9% = $9.72

Finally, we add that to the previous total.

$108 + $9.72 = $117.72

5 0

3 years ago