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bija089 [108]
3 years ago
14

Alex has 21 marbles zach has 19 times as many marbles as alex how many marbles does zach have

Mathematics
1 answer:
Yuri [45]3 years ago
4 0
Zach has 399 marbles because 21*19 is equal to 399.
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Answer:

130x+150y=1,920

Step-by-step explanation:

Why that is the equation is he learned 130 words per month in Portugal and 150 words per month in Brazil. Added together it is 1,920.

So the equation is 130x+150y=1,920.

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grigory [225]
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7 = 3x − 5? What does X equal
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3 years ago
A tarp is used to keep the infield of a baseball field from getting wet. The infield is a square. The corners of the square tarp
Dafna11 [192]

Answer:

<h2>a. 2,025 ft</h2><h2>b. 8,100 is a perfect square. </h2>

Step-by-step & explanation:

<em>It is a perfect square because if it wasn't, it wouldn't be equally a whole number when divided by 4 or 2,025 exactly on ALL 4 sides and when finding the root of 8,100 it's a perfect 90.  As you should already know a perfect square has a given 90 degree angle.</em>

Tarp = 8,100 sq ft.

- anchored corners at the base.

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Well if there's 4 bases, divide 8,100 by 4.

8,100 / 4 = 2,025

One base to another base is 2,025 ft.

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3 years ago
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