-2(x+3y)=18 solve for y!

Answers

Answer 1

Answer: $-2(x+3y)=18\ \ \ \ /:(-2)\n\nx+3y=9\n\n3y=9-x\ \ \ \ /:3\n\ny=(9-x)/(3)\n\ny=(9)/(3)-(x)/(3)\n\ny=3-(1)/(3)x\n\ny=-(1)/(3)x+3$

Answer 2

Answer:

$(-9-x)/(3)$ Step-by-step explanation:

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If x is the midpoint of -21 and 18, find the value of x.
midpoint =

Answers

The distance from -21 to 18 would be 39 units ( -21 to 0 is 21 and from 0 to 18 is 18 , 21 +18 = 39)

To find the midpoint distance, divide the total distance by 2:

x = 39/2

x = 19.5

Now to find the midpoint, either add 19.5 to -21 or subtract 19.5 from 18.

Midpoint = -1.5

Answer:

−1½ = x

Step-by-step explanation:

First, find the range in between 18 and −21, which is 39:

$18 - x = -21 \n \n 39 = x$

Take half of that range, then add that to −21:

$19(1)/(2) = (39)/(2) \n \n -21 + 19 (1)/(2) = -1(1)/(2)$

I am joyous to assist you anytime.

Write an expression that has three terms and simplifies to 4x-7.

Answers

you get 3x + 4x, +4- -3,and +3 + 4

Round each number to the nearest tenth what is the best estimate for the answer to 38.94+65.43

Answers

38.94 rounded to the nearest tenth. To know if we should round up or down, we look to the number in the hundredths place. If that number is 5 or greater, we round up. If the number is 4 or less, we round down

38.94

The number is 4, so we round down. 38.94 becomes 38.9

65.45 rounded to the nearest tenth. To know if we should round up or down, we look to the number in the hundredths place. If that number is 5 or greater, we round up. If the number is 4 or less, we round down.

65.43

The number is 3, so we round down. 65.43 becomes 65.4

38.9+65.4= 104.3

If you were to estimate 38.94+65.43, we round the number to numbers that we can easily calculate in our head. 38.94+65.43 becomes 40+65

40+65=105

♥ 38.94+65.43=
♥ 104.37
♥ Rounded to the nearest then:
♥ 40
♥ 104.40 is your answer.
♥ All you need to do is round 37.

What is the sign of the product?

(0.5)(–0.5)(3.2)(–7.9)(–2.4)

Answers

there are three negative signs so the product will be a negative.
hope this helps

Which expression is equivalent to 27/125

Answers

For example:

$(27)/(125)=(27*2)/(125*2)=(54)/(250)$

once 27/125 is irreductible fraction

PLEASE HELP I GIVE THANKS

Answers

I am pretty sure it is (c). I used a formula, ( 25.00+(2.50*n))
substitute the variable "n" for the number of deliveries made.

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