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vladimir2022 [97]
2 years ago
14

Chad earned $30 for raking leaves. He has also earned money by doing chores for 6 weeks. Altogether, he has earned $120. How muc

h does he earn each week doing chores?
Mathematics
2 answers:
galben [10]2 years ago
6 0
You know that he makes $90 for doing chores, dividing that by 6 and you get that each week he earns $15 for chores.
Tresset [83]2 years ago
3 0
120-30=90
90 divided by 6 = $15
Hope it helps :)
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90 POINTS IF ANSWER IS RIGHT!!!!!!!!!! PLEASE I NEED HELP!!!!
olganol [36]

Answer:

no solution

Step-by-step explanation:

–5x – 12y – 43z = –136

–4x – 14y – 52z = –146

21x + 72y + 267z = 756

Every coefficient of the second equation is a multiple of 2, so divide both sides by 2.

Every coefficient of the third equation is a multiple of 3, so divide both sides by 3.

–5x – 12y – 43z = –136

–2x – 7y – 26z = –73

 7x + 24y + 89z = 252

Let's call the above system the "simplified original system."

Using the simplified original system, multiply the first equation by -2 and the second equation by 5. Then add them.

          10x + 24y + 86z = 272

(+)      -10x - 35x - 130z = 365

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

                   -11y - 44z = 637

Now we have an equation with only y and z.

Now, using the simplified original system, multiply the second equation by 7 and the third equation by 2. Then add them.

        –14x – 49y – 182z = –511

(+)       14x + 48y + 178z = 504

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

                     -y - 4z = -7

Now we have a system in 2 unknowns, y and z.

-11y - 44z = 637

-y - 4z = -7

Multiply the second equation by -11 and add to the first equation.

      -11y - 44z = 637

(+)     11y + 44z = 77

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

                 0 = 714

Since 0 = 714 is false, this system has no solution.

8 0
3 years ago
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• Low tide is 1 foot below the average water level.
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Answer:positive 4 because it is basically 5-1

Step-by-step explanation:

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2 years ago
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iragen [17]
Let x+500 represent the first year

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(x+500)+(x+500+500+500)+(x+500+500+500+500)= 17,800

By adding the equation above, 4x+5000=17,800

4x=17,800-5000
4x=12,800
x=3,200

So the amount the man was paid in the first year is 3,200+500=3,700
8 0
3 years ago
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I need the answer to 35-38 please
Vadim26 [7]
Good night. How ru?

35) x => 20
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After 2 years, Deion earned $270 in simple interest from a CD into which he
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The answer is A. 2.25%
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