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Morgarella [4.7K]
3 years ago
10

What is the answer to 3×+9=42

Mathematics
2 answers:
Rzqust [24]3 years ago
8 0

Answer:

x = 11

Step-by-step explanation:

from question 3x + 9 = 42

collect the like terms

3x =  42-9

3x = 33

divide both sides by 3

3x/3 = 33/3

x = 11

to check if your answer is correct, put 11 where you see x in the question.

3x + 9 = 42

3(11) + 9 =42

33+9 = 42

42 = 42...........proved

Tomtit [17]3 years ago
6 0

Answer:

11

Step-by-step explanation:

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10. Rotate the figure shown 180° clockwise. Record the coordinates of the 3 points<br> image.
inna [77]

Answer:

J' = (6,7)

K' = (6,2)

L'=(3,7)

Step-by-step explanation:

From the attachment, we have:

J = (-6,-7)

K = (-6,-2)

L = (-3,-7)

Rotation: 180 degrees clockwise

Required

Find J', K' and L'

When a point (x, y)is rotated 180 degree clockwise, the resulting point is: (-x, -y)

So, we have:

J' = (6,7)

K' = (6,2)

L'=(3,7)

3 0
3 years ago
The area of a rectangle is 42 milimeter .The length is 7 milimeters. What is the perimter of rectangel?
Leni [432]

Answer:

6 millimeters

Step-by-step explanation:

A = L × W

A ÷ L = W

42 ÷ 7 = 6

8 0
3 years ago
Read 2 more answers
432 tk. is divided amongst three workers A, B and C such that 8 times A's share is equal to 12 times B's share wich is equal to
Flura [38]

Answer:

A got 243 tk

Step-by-step explanation:

Supose the amount C got was "x"

12 times B's share is 6 times C's share, that would be:

B = 6x

Also, 8 times A's share is 12 times B's share, that would be:

8A = 12B

8A = 12(6x)

8A = 72x

A = 72x/8

A = 9x

Now, we can say:

A = 9x

B = 6x

C = x

We know total is 432, thus we can write and solve for x first:

A + B + C = 432

9x + 6x + x = 432

16x = 432

x = 432/16

x = 27

A got "9x", so plugging in x = 27, we know:

A got 9*27 = 243 tk

7 0
3 years ago
A car travels 348 miles on 12 gallons of gas dominic used 8 gallons on a trip how far did the car travel
Cloud [144]

Answer:

We can start by figuring out how much he traveled per gallon. To do so all we need to do is divide the amount of miles he drove by the gallons it took him to drive that distance (348/12). This comes out to 29 miles. THerefore he drives 29 miles per gallon of gasoline.

Now to find how far he traveled with 8 gallons we need to multiply 29 times 8 (miles per gallon times how many gallons he used)

Your answer is 232

Step-by-step explanation:

4 0
3 years ago
Please answer ASAP. Suppose we write down the smallest (positive) 2-digit, 3-digit, and 4-digit multiples of 8.
GaryK [48]

Answer:

16, 104, 1000

Step-by-step explanation:

8*2

8*13

8*125

7 0
2 years ago
Read 2 more answers
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