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aalyn [17]
3 years ago
13

Solve for x. Make sure to show all your work. 21=3(x+6)

Mathematics
2 answers:
ziro4ka [17]3 years ago
7 0

Answer:

1 is correct answer

Step-by-step explanation:

21 = 3(x + 6) \\ 21 = 3x + 18 \\ 21  - 18 = 3x \\ 3 = 3x \\ x =  \frac{3}{3}  \\ x = 1

hope it helped you:)

Alisiya [41]3 years ago
6 0

Answer:

12

Step-by-step explanation:

3+6=9

9+12=21

So, in conclusion 3(12+6)=21 is your answer.

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The perimeter of the figure to the right, made up of identical squares, is equal to 56 cm. What is the area of the figure?
Mamont248 [21]

The area of the square will be 196cm².

<h3>How to calculate the area?</h3>

It should be noted that the perimeter of a square is the addition of all its sides. Therefore, the length of the side will be:

= 56/4

= 14

Therefore, the area of the figure will be:

= 14²

= 14 × 14

= 196cm²

Learn more about area on:

brainly.com/question/25292087

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4 0
2 years ago
A rectangular block has square base of area 64 cm². If the thickness of the block is 5 cm, find its total surface area. ​
Andrej [43]

Answer:

total surface area of cube is <u>6 * area of one side</u>

therefore area of one side is given 64cm^2

thickness is also given 5cm .

TSA is 64*5 = 320cm^2

hope it is helpful

4 0
3 years ago
Read 2 more answers
30% of what number is 70
katrin2010 [14]
233 1/3

you start with .3x = 70, as this is the sentence given, solving for x.
divide both sides by .3, and you get x
6 0
3 years ago
What is the total surface area of the
Tom [10]

Answer:

D:315

Step-by-step explanation:

6x7 and then divide by 2 = 21+21 =42 13x7= 91x3= 273+ 42= 315

6 0
2 years ago
Please help asap im super confused<br> Which is the equation for BC?
Aloiza [94]
Points on BC:
(-5, 5) and (0,1)
Slope = (5-1)/(-5-0)
Slope = -4/5

y = mx + c
y = -4/5x + c

at point (0,1)
1 = -4/5(0) + c
c = 1

y = -4/5x + 1
5y = -4x + 5
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6 0
3 years ago
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