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Wittaler [7]
3 years ago
11

How do I rewrite this algebra problem 9x_-72

Mathematics
2 answers:
abruzzese [7]3 years ago
5 0
9x-72=
9÷9= 1
72÷9=8
so... x-8
Vedmedyk [2.9K]3 years ago
4 0
8 because 9x8=72 and 72
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The perimeter of the picture frame is 38 inches. The width of the frame is 7 inches, what is the length?
o-na [289]

Answer:

12 inches

Step-by-step explanation:

So you know that the perimeter of a picture frame (a rectangle) is 2 widths plus 2 lengths.

Let x= lengths and w= widths

From the question we already know that w=7, so we can set up an equation that says:

2x + 2w = 38

2x + 2(7) = 38

2x+14 = 38

2x +14 -14 = 38-14

2x = 24

2x/2 = 24/2

x= 12

Since x= lengths =12

the length of the frame is 12 inches.

7 0
4 years ago
A town has a population of 5000 and grows at 4% every year. What will be the population after 7 years, to the nearest whole numb
alexdok [17]
Equation:5000(1+0.04)^7
Answer: approximately 6579.65 or 6580
8 0
3 years ago
Read 2 more answers
Anybody know this answe cause I don’t
wariber [46]

Answer:

1.875 Pounds

Step-by-step explanation:

8 0
3 years ago
Which of the following are solutions to the equation below?
scoundrel [369]

Answer:

The correct options for the solution values are:

  • x=2\sqrt{2}-5
  • x=-2\sqrt{2}-5

Step-by-step explanation:

Given the expression

x^2+10x+25=8

Subtract 25 from both sides

x^2+10x+25-25=8-25

Simplify

x^2+10x=-17

Add 25 or 5² to both sides

x^2+10x+5^2=8

as

x^2+10x+5^2=\left(x+5\right)^2

so the expression becomes

\left(x+5\right)^2=8

\mathrm{For\:}f^2\left(x\right)=a\mathrm{\:the\:solutions\:are\:}f\left(x\right)=\sqrt{a},\:-\sqrt{a}

solve

x+5=\sqrt{8}

Subtract 5 from both sides

x+5-5=2\sqrt{2}-5

x=2\sqrt{2}-5

solve

x+5=-\sqrt{8}

Subtract 5 from both sides

x+5-5=-2\sqrt{2}-5

x=-2\sqrt{2}-5

Therefore, the solution to the equation

x=2\sqrt{2}-5,\:x=-2\sqrt{2}-5

Hence, the correct options for the solution values are:

  • x=2\sqrt{2}-5
  • x=-2\sqrt{2}-5

6 0
3 years ago
You pay $6 in tax on a $30 purchase. What is the tax percent.
marin [14]

Answer:

20%

Step-by-step explanation:

4 0
3 years ago
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