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almond37 [142]
3 years ago
10

Please help me out please

Mathematics
1 answer:
Sliva [168]3 years ago
6 0

Answer:

31

Step-by-step explanation:

For rectangle ABCD, AC and BD are the lengths of the diagonals. The diagonals of a rectangle are congruent.

AC = BD

3x + 7 = 131 - x

Add x to both sides.

4x + 7 = 131

Subtract 7 from both sides.

4x = 124

Divide both sides by 4.

x = 31

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mixas84 [53]

Answer:

8000 to the nearest thousand

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Step-by-step explanation:

8 0
3 years ago
Please its past due, will give brainlist, there is a pt. 2
Yanka [14]

Answer:

First we add 7 on both sides

-7x+3y= -6.3

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___________

then we simply

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-6.3+ 7x = 0.23

So, -1x+3y=0.7

2y = 0.7

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2. 2

y = 0.35 or 35!!

Step-by-step explanation:

Hope this helps

5 0
3 years ago
Read 2 more answers
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kykrilka [37]
X should equal  6y-30
3 0
3 years ago
What is 56% as a fraction<br> plz show me in steps:)
kiruha [24]

Answer:

14/25

Step-by-step explanation:

All percentages can be represented by PERCENTAGE/100

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Then simplify by dividing by 2

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8 0
3 years ago
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The opposite sides of a parallelogram have measures (2x+10) cin and (x+15)
xz_007 [3.2K]

Answer:

The measure of the sides is 20 cm.

Step-by-step explanation:

Opposite side of a parallelogram:

Opposite sides of a parallelogram are congruent, that is, they have the same measure.

Measures (2x+10) cm and (x+15) cm:

This means that:

2x + 10 = x + 15

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x = 5

2x + 10 = 2*5 + 10 = 10 + 10 = 20

The measure of the sides is 20 cm.

6 0
3 years ago
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