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emmasim [6.3K]
3 years ago
10

Solve the equation 7x=3^2-1

Mathematics
1 answer:
Deffense [45]3 years ago
3 0

Answer:

15

Step-by-step explanation:

7x+3^2-1

3^2=9-1=8

7x+8

Solution

7x+8

7+8=<u>15</u>

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3c=2(c-1) in a verbal expression
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9514 1404 393

Answer:

  "three times a number is the same as twice the difference of the number and 1"

Step-by-step explanation:

3c is "three times a number"

2(c -1) is "two times the difference of the number and 1"

When writing the description of the right-hand side, one needs to be careful to write it so there is no ambiguity with respect to what is being multiplied by 2. For example, if you say, "two times one less than the number", it is not clear whether that is c -2×1 or 2×(c -1).

A suitable description is ...

three times a number is the same as twice the difference of the number and 1

6 0
3 years ago
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sergiy2304 [10]

Answer:

choice C) 30 ft

Step-by-step explanation:

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3 0
3 years ago
Cami goes scuba diving. She descends 18 feet in 3 minutes. Which expressions represent the average rate at which Cami’s position
julsineya [31]

Answer:

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Step-by-step explanation:

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<u>IF you need an explanation on what average rate implies:</u>

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Hope this helps :)

7 0
3 years ago
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