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vitfil [10]
3 years ago
8

An artist wants to frame a square painting with an area of 400 square inches. She wants to know the length of the wood trim that

is needed to go around the painting.
if x is the length of one side of the painting what equation can you set up to find the length of a side?
Mathematics
1 answer:
Maurinko [17]3 years ago
5 0
Area=legnth times width

if legnth=x
and
area=400

400=x times width

wait
SQUARE painting
legnth=width
width=x

400=x times x
400=x^2
sqrt both sides
20=x
answer is 20 in

equation is
400=x times x
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Find the value of x and y
djverab [1.8K]

Answer:

x = 8, y = 27

Step-by-step explanation:

Since both opposite lines are equal in length to each other, these opposite lines are parallel to each other.  The top line is parallel and same length as the bottom line and the left and right lines are also parallel and equal in length.

Based on that, the two left side angles must equal 180 and the right side two angles must equal 180.

(2y + 24) + (3y + 21) = 180

That's the same as 2y + 24 + 3y + 21 = 180

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5y = 135

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7 0
2 years ago
30 tens = ones<br> 30 tens = hundreds
Svetllana [295]

30 tens = 30 x 10 = 300

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300 is your answer

30 tens = 30 x 10 = 300

3 hundreds = 3 x 100 = 300

3 is your answer

<em>~Rise Above the Ordinary</em>

4 0
2 years ago
A theater has 1200 seats. each row has 20 seats. what is the equation to find the number of rows in the theater
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Let be x the number of rows
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Answer:

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