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Savatey [412]
3 years ago
13

Find the unknown side length for the triangle. Area = 18 cm² A. 9 cm B. 14 cm C. 18 cm D. 36 cmFind the unknown side length for

the triangle. Area = 18 cm² A. 9 cm B. 14 cm C. 18 cm D. 36 cm
Mathematics
1 answer:
Nataliya [291]3 years ago
5 0
The answer would be A. 9cm
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14, 3, 5, 6.25, 10

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The scale is 1 inch = 0.5 ft.

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Which of these expressions is equivalent to 3/6
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1/2, 6/12, 9,/18, and 15/30
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Your mailbox is 4 ft from a straight street. You pace between the mailbox and the street, such that the distance between you and
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12 Which numbers are irrational? Choose all that apply.
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3 years ago
X+y=525 3x+7y=2775 <br><br> A.340<br> B.280<br> C.225<br> D.300
Nitella [24]

Answer: C.225

Step-by-step explanation: for this case we need to calculate the value of x, to complete this we have 2 equations,

you can stat with simple equation X+y=525, if you clear x we get the following equation.

x = 525 - y

after that we are going to replace x in the major equation.

3x + 7y = 2775

After replace x we get the following equation

3 * (525 - y)  + 7y = 2775

after that, the 3 is going to multiply each value into the parenthesis

3 * 525 - 3 * + 7y = 2775

after resolve the product we get the following equation

1575 - 3y + 7y = 2775

you need resolve the equation with values which has the y

getting the following result

1575 + 4y = 2775

after that you pass the 1575 to the other side with the sign of subtraction

4y =  2775 - 1575

4y = 1200

after that, the 4 which is multiplying pass to the other side dividing

then

y = 1200/4

y = 300

finally, you will replace the value of y in the equation where we clear x, this equation.

x = 525 - y

if you replace y

x = 525 - 300

x = 225

then value of the x is 225

4 0
3 years ago
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