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3 years ago

Solve step by step: 10/2= a/a-9 Note: I need this NOW!!!

2 answers:

3 0

For this question you can say:
10/2 = a/a-9 is equal to 2a = 10a - 90
so now you should add -10a on both sides:
2a -10a = -90 ⇒ -8a = -90 ⇒ a = -90/-8 ⇒ a = 11.25 :)))
i hope this is helpful
have a nice day

Ghella [55]3 years ago

3 0

10/2= a/a-9

10/2=a/a+-9

Multiply all terms by a and cancel

10a/2 = a+-9a

Simplify both sides of the equation

5a= -8a

Add 8a to both sides

5a+8a= -8a+8a

13a=0

Divide both sides by 13

13a/13=0/13

a= 0

Answer : No solution

I hope that's help !

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3 years ago

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3 years ago

A jet ski costs $925 and depreciates by 15% each year. How much will

ivann1987 [24]

Initial cost of the jet ski = $925
Percentage of depreciation per year = 15%
Number of years after which the cost of the jetski has to be determined = 7
Then
Depreciated Value = Initial cost( 1 - percentage of depreciation) ^number of years
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      = 925( 1 - 15/100)^7
      = 925(1 - 0.15)^7
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3 years ago

How do you solve this step by step

nydimaria [60]

Work shown above! x = 7
To solve use the supplementary angle next to the unknown angle to find an expression for that unknown angle and use that with the expressions inside the triangle to set equal to 180 and solve for x.

hope this helps c:

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