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Artyom0805 [142]
3 years ago
7

Can you help me with this problem: Elena and Jada both read at a constant rate, but Elena reads more slowly. For every 4 pages t

hat Elena read, Jada can read 5. Complete the table. (Look at photo for the table.)

Mathematics
1 answer:
Paraphin [41]3 years ago
7 0

4 pages Elena = 5 pages Jada

To figure out how many pages Jada reads if Elena reads 1, divide 5 by 4: 1.25. This means that for every 1 page Elena reads, Jada reads 1.25 pages.

So if Elena reads 9 pages, multiply 1.25 by 9: 11.25 pages that Jada reads.

For S pages read by Elena, this is a variable, so I’m assuming it means for every S pages, Jada reads 1.25S

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Write one word problem involving simultaneous linear equations.
amm1812

Answer:

Andre has more money than Bob.  If Andre gave Bob $20, they would have the same amount.  While if Bob gave Andre $22, Andre would then have twice as much as Bob.  How much does each one actually have?

Step-by-step explanation:

Here is the first sentence:

"If Andre gave Bob $20, they would have the same amount."

Algebraically:

1)   x − 20 = y + 20.

(Andre -- x -- has the same amount as Bob, after he gives him $20.)

Here is the second sentence:

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Algebraically:

2)   x + 22 = 2(y − 22).

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To solve any system of two equations, we must reduce it to one equation in one of the unknowns.  In this example, we can solve equation 1) for x --

x − 20 = y + 20

 implies   x = y + 40

-- and substitute it into equation 2):

y + 40 + 22 = 2(y − 22).

      That is,

y + 62 = 2y − 44,

y − 2y = − 44 − 62,

according to the techniques of Lesson 9,

−y = −106

y = 106.

Bob has $106.  Therefore, according to the exression for x, Andre has

106 + 40 = $146.

I hope this helps u! :D

7 0
3 years ago
Twice the larger of two consecutive integers is equal to fifteen less than three times the smaller. Find the integers.
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Answer:

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Step-by-step explanation:

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collect like terms,

2+15 =3a-2a

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The integers are 17,18

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