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Deffense [45]
3 years ago
13

What is the vale of ■ in this equation?7×9=(7×10)-(7×■)

Mathematics
2 answers:
aliina [53]3 years ago
5 0
The answer is 1 because 7*9 is 63
7*10=70 70-7=63
sergiy2304 [10]3 years ago
4 0
1, because seven times nine equals sixty-three. Also, seven times ten equals seventy and seven times one equals seven which seventy minus seven equals sixty-three.
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2 years ago
Solve for x.<br> 7(x - 3) + 3(4 - x) = -8<br> Ox= -16/19<br> Ox= 1/4<br> Ox= 25/10<br> Ox=-41/10
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Answer:

I believe it is 1/4

Step-by-step explanation:

8 0
3 years ago
I need to know the answer but it would be nice to have the steps too
Maslowich

Answer:

The perimeter of the rectangle is 27n + 1 feet

Step-by-step explanation:

The formula of the perimeter of the rectangle is P = 2(L + W), where

  • L is the length of the rectangle
  • W is the width of the rectangle

∵ The width of a rectangle is 7n - 6.5 feet

∴ W = 7n - 6.5 feet

∵ The length of the rectangle is 6.5n + 7 feet

∴ L = 6.5n + 7 feet

→ Substitute W and L in the formula of the perimeter above

∵ P = 2[6.5n + 7 + 7n - 6.5]

→ Add the like terms

∴ P = 2[(6.5n + 7n) + (7 - 6.5)]

∴ P = 2[13.5n + 0.5]

→ Multiply the terms in the bracket by 2

∴ P = 27n + 1

∴ The perimeter of the rectangle is (27n + 1) feet

3 0
3 years ago
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