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Agata [3.3K]
2 years ago
8

Mason used distributive property of multiplication to help him solve the equation 3 x 7 = ________. Mason did not get the same a

nswer for each side of the expression. Explain the steps required to correct his mistake.
3 x 7 = (3 x 3) + (3 x 6)
21 = 9 + 18
21 = 27
Mathematics
1 answer:
VikaD [51]2 years ago
6 0

Answer:

Step-by-step explanation:

We can rewrite 7 as 3+4 then instead of 3*7 we have 3*(3+4).

Then distribute the 3 in the parenthesis 3*(3+4) = (3*3) + (3*4)

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Helppp please I’ll give points to whoever answers it
sashaice [31]

Answer:

The solution is in the attached file

Step-by-step explanation:

Choose the examples you would like to use from the examples listed for both true and false

5 0
2 years ago
Maria is installing gutters on her rectangular shed that measures 10 ft by 9 ft she has 23 ft of gutter already and need to purc
Paha777 [63]

Answer:

Maria needs 3 lengths of gutter of finish the shed.

Step-by-step explanation:

We need to calculate the perimeter of the rectangular shed to know how much  5 feet gutter is needed.

The perimeter of the shed is p = 2(l + b) where l = 10ft and b = 9 ft

p = 2(10 + 9) = 2(19) = 38 ft

Now, the perimeter of the shed also equal 23 ft of gutter already installed plus 5x ft gutter where x = number of gutters.

So 23 + 5x = 38

collecting like terms, we have

5x = 38 - 23

5x = 15

dividing through by 5 we have

5x/5 = 15/5

x = 15/5

x = 3

So, Maria needs 3 lengths of gutter of finish the shed.

8 0
3 years ago
How many whole numbers are there, whose squares and cubes have the same number of digits?
Naddik [55]

Answer:

there are only 4 whole numbers whose squares and cubes have the same number of digits.

Explanations:

let 0, 1, 2 and 4∈W (where W is a whole number), then

0^2=0, 0^3=0,

1^2=1, 1^3=1,

2^2=4, 2^3=8,

4^2=16, 4^3=64.

You can see from the above that only four whole numbers are there whose squares and cubes have the same number of digits







7 0
2 years ago
U GET BRAINLIEST IF ANSWER CORRECTLY
tangare [24]
1)5/24
2)1 and 1/3 im not sure 
3)1 and 1/3
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7 0
2 years ago
kirby wants to run a total of 7 5/8 miles every tuesday and thursday. if he runs 4 4/16 miles on tuesday and 3 3/8 miles every t
mylen [45]

Answer: yes


Step-by-step explanation:

4 4/16 + 3 3/8=4 2/8 + 3 3/8=7 5/8

8 0
3 years ago
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