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Whitepunk [10]
4 years ago
5

Mari and Jen each work 20 hours a week at different jobs.Mari earns twice as much as Jen.Together they earn $480.How much does e

ach girl earn in a week
Mathematics
1 answer:
kow [346]4 years ago
3 0
x-Jen\ earn\\2x-earn\ Mari\\\\x+2x=480\\3x=480\\x=160\\\\2x=320\\\\Jen\ earn\ 160\ and\ Mari\ 320.
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Simplify <br> (2-4i) -(3 -6i)
SashulF [63]

2 - 4i - 3 + 6i =  - 1 + 2i

5 0
2 years ago
What is the sign of-5×-1/-2
Svetradugi [14.3K]
The sign would be negative because there is an odd number of negatives. If there were an even number of negatives it would be positive.

Multiply -5 by -1

The answer would be -5/2
5 0
3 years ago
The greater of two numbers is 5 more than the smaller. If the
xenn [34]

Answer:

First number = 4

Second number = 9

Step-by-step explanation:

If the first number = x, the second number = x + 5.

The calculation can be expressed as follows:

x + 2(x + 5) = 22

First, expand the bracket 2(x + 5):

x + 2x + 10 = 22

Combine like terms:

3x + 10 = 22

Subtract 10 from both sides:

3x = 12

Divide both sides by 3:

x = 4

First number = 4

Second number = 4 + 5 = 9

5 0
1 year ago
What is the soulution of -(-5-6x) = 4(5x+3)?
Fynjy0 [20]
You have to distribute the parentheses first. Since there is a negative sign in front of the parentheses, it counts as a negative 1. After you distribute you should get: -5+6x=20x+12, but that is not your final answer. After you add like terms: 17x=-17. Divide 17 on both sides: x=-1. X=-1 is your final answer.
4 0
4 years ago
Sally is 10 years older than one fifth of her mother’s age. If Sally is 20 years old, how old is her mother?
slamgirl [31]

S = Sally

M = Mother

S = M/5 + 10

20 = M/5 + 10

20 - 10 = M/5

10 = M/5

M = 10 * 5

M = 50

----------------

Her mother is 50 yo

-----------------

50 : 5 + 10 = 20

the answer is good

4 0
3 years ago
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