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3 years ago

What value of x makes this equation true? 3(2x+6)=36

Mathematics

2 answers:

jeyben [28]3 years ago

8 0

X=5 2×5=10×3=30+6=36

Contact [7]3 years ago

6 0

3(2x+6)=36

Divide both sides by 3

2x + 6 = 12

Subtract 6 from both sides

2x = 6

Divide both sides by 2

x = 3

Answer

x = 3 makes the equation true

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- x - x + 11 - 2x = 83 please show step by step!!

m_a_m_a [10]

Answer:

$x=-18$

Step-by-step explanation:

Given

$-x-x+11-2x=83$

Step 1: Combine Like Terms on LHS

$-x-x+11-2x=83\\-2x+11-2x=83\\-4x+11=83$

Step 2: Subtract 11 on both sides

$-4x+11=83\\-4x+11-11=83-11\\-4x=72$

Step 3: Divide both sides by -4 to isolate the x-variable

$-4x=72\\\\\frac{-4x}{-4}=\frac{72}{-4}\\ \\ x=-18$

Final Answer

$x=-18$

7 0

2 years ago

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Megan Hikes 15.12 mi in 6.3 hours. If Megan hike the same number of miles each hour, how many miles did she hike each hour.

rodikova [14]

Answer:

The answer is 2.4 Miles per hour

Step-by-step explanation:

15.12 divided by 6.3= 2.4 MPH

6 0

3 years ago

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What is the annual interest rate is 1=$160.67, p=$2000, t=8 months

Sergeeva-Olga [200]

Please use " i " to denote "interest."

the formula for simple interest is i = p r t.

Here, i = $160.67 = $2000 (r) (8/12)

Solving for the interest rate, r = ($169.67)(12/8)/ $2000 = 0.127, or 12.7%

4 0

3 years ago

caleb gave the cashier $20 to buy two identical Christmas cards there were no sales tax or any other charges . the cashier gave

julsineya [31]

$2.92

$20 - $17.08 = $2.92

6 0

4 years ago

Read 2 more answers

Please help! Select all that apply. Write the letter of your answer. V = Iwh

Delicious77 [7]

Answer:

Step-by-step explanation:

Formula for volume of a cuboid $= lwh$ . where l is the length, w is the width and h is the height.

Using this equation we can answer the question by using the values given.

$V = (2y+4)(2y-4)(3y) = (4y^2-16)(3y) = 12y^3-48y$

From the list of answers, we can compare each one to the answer we got and see if they match up.

The answers that match up are:

C. $12y^3-48y$ - it is exactly like the answer we got.

D. $3y(4y^2-16) = 12y^3-48y$ - if we simplify the brackets, it is exactly like the answer we got.

E. $(2y+4)(6y^2-12y)=12y^3-24y^2+24y^2-48y=12y^3-48y$ - once again, if we simplify the brackets it is like the answer we got.

None of the other answers are correct as they do not match up with the answer we got.

8 0

3 years ago