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-BARSIC- [3]
3 years ago
5

What is the answer to these..?

Mathematics
2 answers:
erastova [34]3 years ago
8 0
2. $9.20 cause you multiply the price by the number of the sweets
svetoff [14.1K]3 years ago
7 0

Answer:

Step-by-step explanation:

10 out of 25 students stayed for tutoring...

10/25 = 0.4 = 40% stayed for tutoring <===

=========================

3 (0.79) + 2(0.69) + 5(1.09) =

2.37 + 1.38 + 5.45 =

$ 9.20 <==== what Rachel spent

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A craft store buys 50 yards of satin ribon for $12.50. The store sells the ribbon by the foot. A customer can purchase 5 feet of
amm1812

Answer:

$8.1

Step-by-step explanation:

Convert 45 yards of ribbon to feet through proper conversion factor.  

  (45 yards)(3 ft / 1 yard) = 135 feet

Divide this number by 5 to determine the number of 5-ft ribbon that customers can purchased.

    n = 135 ft / 5 ft = 27

Then, multiply by $0.80.

   R = (27)($0.80) = $21.6

The profit is equal to $21.6 and $13.50,

    P = $21.6 - $13.50 = $8.1

Answer: $8.1

8 0
3 years ago
Find the average rate of change of f(x)=2x^2-7x from x=2 to x=6
scoundrel [369]

Answer:

Step-by-step explanation:

The average rate of change of a function f between a and b (a< b) is :

R =[f(b)-f(a)] ÷ (a-b)

●●●●●●●●●●●●●●●●●●●●●●●●

Let R be the average rate of change of this function

f(6) = 2×6^2 - 7×6 = 72-42 = 30

f(2) = 2×2^2 - 7×2 = 8-14 = -6

R = [f(6) - f(2)]÷ (6-2)

R = [30-(-6)] ÷ 4

R = -36/4

R = -9

■■■■■■■■■■■■■■■■■■■■■■■■■

The average rate of change of this function is -9

8 0
3 years ago
Read 2 more answers
A class has 6 boys and 15 girls what is the ratio of boys to girls
ElenaW [278]
A ratio is a comparison of two values. In this case, there are 6 boys to every 15 girls. So, this means the ratio is 6:15.

Hopefully, this helps!
6 0
3 years ago
Read 2 more answers
Someone pls solve this math puzzle.
Ivahew [28]

Answer:

x (blue circle thing) = 46

y (dna) = -63

z (molecules) = 52

Step-by-step explanation:

4 0
3 years ago
The hot water faucet takes four minutes to fill the tub, in the cold water faucet takes 3 minutes for the same job. How long to
Sindrei [870]

Answer: 1.12 minutes


7 0
3 years ago
Read 2 more answers
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