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2 years ago

Answer the following 21 - 4x = 4x + 21

Mathematics

2 answers:

andrew-mc [135]2 years ago

5 0

Answer:

X=5 and a quarter

Step-by-step explanation:

21 + 21 = 4x + 4x

42 = 8x

8x = 42

x = 42/8

= 5 1/4

Irina18 [472]2 years ago

3 0

Answer:

Step-by-step explanation:

21 - 4x = 4x + 21

~Subtract 21 to both sides

-4x = 4x

~Divide -4 to both sides

x = -x

~Add 8 to both sides

2x = 0

~Divide 2 to both sides

x = 0

Best of Luck!

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3 years ago

Find the midpoint of the segment with the following end points (10,5) and (6,9)

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Answer:

The mid-point between the endpoints (10,5) and (6,9) is:

$\left(x,\:y\right)=\left(8,\:7\right)$

Step-by-step explanation:

Let (x, y) be the mid-point

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(10,5)

(6,9)

Using the formula to find the mid-point between the endpoints (10,5) and (6,9)

$\left(x,\:y\right)=\left(\frac{x_2+x_1}{2},\:\:\frac{y_2+y_1}{2}\right)$

Here:

$\left(x_1,\:y_1\right)=\left(10,\:5\right),\:\left(x_2,\:y_2\right)=\left(6,\:9\right)$

Thus,

$\left(x,\:y\right)=\left(\frac{x_2+x_1}{2},\:\:\frac{y_2+y_1}{2}\right)$

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3 years ago

If the present value of an item is P

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Answer:

Step-by-step explanation:

Formula to find interest :

I = Prt

Solving :

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Future value :

P + I
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1 year ago

Lisa is assembling fruit baskets for a large corporate order. She starts with 66 pears and will put 5 pears in each fruit basket

denis23 [38]

Answer:

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Step-by-step explanation:

66 / 5 = ?

66 / 5 = 13.2

13.2 - 5 = 12

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2 years ago