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abruzzese [7]
3 years ago
11

Write an algebraic expression for each word phrase.

Mathematics
1 answer:
Viktor [21]3 years ago
7 0

Answer:

1 4+p

2 5-(y×3)

3 m÷10

4 3×(7-d)

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Answer:

8 and 6

Step-by-step explanation:

If you use x for the first number, and y for the second, you get equations of 3x+5y=54 and x-2=y.

You can substitute the second equation into the first one to solve it. This gives 3x+5(x-2)=54.

The brackets can be expanded to 3x+5x-10=54. Collecting like terms makes it 8x-10=54.

Next, we add 10 to both sides. This gives 8x=64.

From there, we isolate the x by dividing both sides by 8, giving x=8.

To work out the second number, we can sub 8 for x in either equation (I'm using the second one as it's simpler).

This comes to y=8-2, therefore y=6.

**This content is simultaneous equations, which you may wish to revise. I'm always happy to help!

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What is the value of x in the figure?
sveticcg [70]
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Answer:

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Step-by-step explanation:

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For a sale, a store decreases its prices on all items 20%. An item that cost $120 before the sale now costs $120 - 0.2($120). Wh
tino4ka555 [31]
If the store decreases its prices by 20%, then ur actually paying 80%

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lets check..
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