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Oliga [24]
3 years ago
5

Show all work please :)

Mathematics
1 answer:
ollegr [7]3 years ago
8 0

Answer: To find the inverse, interchange the variables and solve for y.

Step-by-step explanation:

f-^1 (x)= - 5x/3

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Solve for the total cost. Retail price: $12.95; discount rate: 15%; sales tax rate: 7%
Alchen [17]

Answer: $10.24

Step-by-step explanation: 12.95 * 0.15 = 1.94    12.95 - 1.94 = 11.01

11.01 * 0.07 = .77      11.01 - 0.77 = 10.24

8 0
3 years ago
Luis wants to buy a skateboard that usually sells for $135. At big AL's they are discounted 20%. What is the total cost of the s
tino4ka555 [31]

Answer:

117.99

Step-by-step explanation:

First step is to find the discount

Discount = original price * discount rate

               = 135 * 20%

                = 135*.20

                 =27

Take the discount from the original price and that is the new price

new price = original price - discount

                 = 135-27

                 =108

Now we need to find the tax

tax = new price * tax rate

       = 108 * 9.25%

       = 108 * .0925

        =9.99

The final price is the new price plus the tax

final price = new price + tax

                 = 108+9.99

                 =117.99

4 0
4 years ago
What is the value of m in the equation 5m − 7 = 6m + 11? ((99) points!! Give me you number? Maybe?)
kolbaska11 [484]

5m-7=6m+11

We want to isolate "m" on one side of the equation and have a number on the other side. Let's start by subtracting both sides by 5m

5m-7-5m=6m+11-5m

-7=m+11

Now, let's subtract both sides by 11

-7-11=m+11-11

-18=m

We now have the value of m.

The next thing I'm going to do is a bit tedious, but you typically want to have the variable on the left side of the equation in the field of math. It's a good habit to develop now.

m=-18

Thus, the answer is choice 3, -18. Let me know if you need any clarifications, thanks!

~ Padoru

5 0
3 years ago
Read 2 more answers
What is 6 + square root of 2<br> what is 6 - square root of 2
Bess [88]

Answer:

12

Step-by-step explanation:

7 0
3 years ago
For the function g defined below, a is a constant and g(4)=8. What is the value of g(-4)?
Travka [436]

I hope this helps!


g(x)= ax^2 + 24


g(4)= 8, g(-4)


a(4^2) + 24 = 8


16a+24= 8

-24 -24

16a = -16

a = -1

3 0
4 years ago
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