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Lina20 [59]
3 years ago
6

PLSSSSSS I NEED HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Ivahew [28]3 years ago
3 0

Answer:

5.5 I use a calculator and I also checked my work

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Use elimination to solve 3x-2y=24 x+2y=48
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Step-by-step explanation:

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The length of a rectangular piece of land is 9 cm more than 3 times its width. The perimeter is 418 cm. Find its dimensions.
SashulF [63]

Let w represent the width of the rectangle in cm. Then its length in cm is (3w+9). The perimeter is the sum of two lengths and two widths, so is ...

... 418 = 2(w + (3w+9))

... 209 = 4w +9 . . . . . . divide by 2, collect terms

... 200 = 4w . . . . . . . . subtract 9

... 50 = w . . . . . . . . . . divide by 4

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The dimensions of this piece of land are 159 cm by 50 cm.

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3 years ago
How many real solutions does the equation V2x + 4<br> = 3x + 1<br> have?
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3 0
3 years ago
Jefferson is plotting the vertices of an isosceles triangle on a coordinate graph. He has plotted the two points shown. Where wo
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Jamir is training for a race and is running laps around a field. If the distance around the field is 250 yards, how many complet
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27 laps

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