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3 years ago

If AC = 52, AB = 8x + 8, and BC = 2x + 4, then the length BC is

Mathematics

1 answer:

Reil [10]3 years ago

5 0

Answer:

Step-by-step explanation:

AC = AB + BC

Since we know what each variable equals, we can write out the equation as shown:

52 = 8X + 8 + 2X + 4

Combining like terms:

52 = 10X + 12

Subtract 12 from both sides:

40 = 10X

Divide by 10:

X = 4

Now that we know X, we can figure out BC

BC = 2(4) + 4

BC = 8 + 4

BC = 12

Therefore BC is 12.

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denpristay [2]

Answer:

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Step-by-step explanation:

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3 years ago

Brielle and Joshua are running a half marathon race, which is

Salsk061 [2.6K]

Answer and Explanation:

Brielle will run the marathon faster.

Work:

Brielle: 13.1/1.25=10.48*10=104.8 minutes

Joshua: 13.1/1.5=8.73...*18=157.2 minutes

Brielle finished in 104.8 minutes.

Joshua finished in 157.2 minutes.

Brielle finished the half marathon race by 52.5 minutes faster than Joshua.

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3 years ago

4x-1divide by 2=x+7<br> what is x

sertanlavr [38]

X= 2.5
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6 0

3 years ago

Point Q’ is the image of Q (3,-4) under a reflection across the x-axis

7nadin3 [17]

Answer:

Q' (-3,4)

Step-by-step explanation:

A reflection across the x-axis would mean that only the x value of the point would change. This means that the y value would still be 4. To find the x value, just flip it to a negative. The negative of 3 is -3

5 0

3 years ago

Read 2 more answers

A store is advertising a sale with 15% off all prices in the store. Sales tax is 8%. Which equation will correctly determine the

hoa [83]

I think the answer is c beacause you have to multiply to get the answer

4 0

3 years ago