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sp2606 [1]
2 years ago
9

Mary spent a total of $55 at the grocery store. Of this amount, she spent $33 on fruit. What percentage of the total did she spe

nd on fruit?
Mathematics
1 answer:
morpeh [17]2 years ago
7 0

Answer:

Step-by-step explanation:

60%

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Verify that f and g are inverses functions using composition , show your steps
pshichka [43]

Answer:

See explanations below

Step-by-step explanation:

Given the functions

f(x) = 12x - 12

g(x) = x/12 - 1

To show they are inverses, we, must show that f(g(x)) = g(f(x))

f(g(x)) = f(x/12 - 1)

Replace x with x/12 - 1 into f(x)

f(g(x)) =12((x-12)/12) - 11

f(g(x)) =  x-1 - 1

f(g(x)) =x - 2

Similarly for g(f(x))

g(f(x)) = g(12x-12)

g(f(x)) =(12x-12)/12 - 1

12(x-1)/12 - 1

x-1 - 1

x - 2

Since f(g(x)) = g(f(x)) = x -2, hence they are inverses of each other

5 0
2 years ago
It cost you $12 to start up your
brilliants [131]

Step-by-step explanation:

let no. of hours be x.

45x - 12 ≥ 117

45x ≥ 129

x ≥ 2.8667 (5sf)

therefore, 3 hours (round up to next whole number).

Topic: inequalities

If you like to venture further, do check out my insta (learntionary) where I regularly post useful math tips! Thank you!

6 0
3 years ago
Find the interest on a Principal Balance of $10,000 over the course of eight years with an interest rate of 5.5%. Do this for: S
o-na [289]
10,000$(1+0.055*8)
This is the formula of simple interest

10,000+10,000(0.055*t)
10,000$(1+0.055*8)=14,400
8 0
3 years ago
Read 2 more answers
Gavin rented a truck for 5 days. The truck
NeX [460]
$55x5 days= $275
$285.20-275=$10.20
10.20/.15= 68
Answer= 68 miles
7 0
3 years ago
Ratio of width to length is 2:3 if the length 18 meters what is the width
weeeeeb [17]

Answer:

12

Step-by-step explanation: 18/3=6 6(2)= 12

8 0
2 years ago
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