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ollegr [7]
3 years ago
15

What is 4x=8 proof reason

Mathematics
2 answers:
Triss [41]3 years ago
5 0

Answer:

x = 2

Step-by-step explanation:

  1. divide both sides by 4
  2. 8÷4 = 2
Yuki888 [10]3 years ago
3 0

Answer:

x=2

Step-by-step explanation:

4x=8

/4   /4

divide both sides by 4

x=2

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Lena is 10 years old. She asks her dad how old he is. He tells her that the lcm of their ages is 14 times the hcf of their ages.
strojnjashka [21]

Answer:

  35

Step-by-step explanation:

Let x represent the HCF of the ages. Then we can have ax = 10 represent Lena's age, and bx can represent her dad's age.

The LCM will be abx = 14x, so we have ab = 14.

Factors of 14 are 1·14 and 2·7. Since the ratio of ages is between 30/10 = 3 and 45/10 = 4.5, we must have b/a in that range. This will be the case for ...

  a=2, b=7

For a=2 and ax=10, we have x=5.

The dad's age is bx = 7·5 = 35.

5 0
3 years ago
ethan bought 4 packages of pencils. after he gave 8 pencils to his friends, he had 40 pencils left over. how many pencils were i
marishachu [46]

Answer:

there was 12 pencil's in each package because 12 ×4=48 48 -8=40

4 0
3 years ago
I don’t know the answer and I can’t figure out how to do it
olga55 [171]

Answer:

I don't see an error at all. Is there an option for no error?

4 0
3 years ago
What value in the replacement set is a solution to this equation? 3(n+7)=48. Replacement set {8,9,10.
Studentka2010 [4]
So if the 3 is on the outside of the parenthesis 3( it means you have to multiply 3 times the numbers inside the parenthesis. 3 X n+7 + 3n + 21. hope this hint helps. 

6 0
4 years ago
Read 2 more answers
What are the coordinates of the end point? Please help
aleksklad [387]

Answer:

1, -16

Step-by-step explanation:

-5+6=1

-3-13=-16

(1, -16)

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