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Serhud [2]
3 years ago
5

7. nelly spends 25% of her free time surfing the internet. if she spends approximately 2 hours per day surfing the internet, how

many hours of free time does she have each day?
8. Tyrese purchased a container of juice that contains 220 calories. The label says that 60% of the calories are carbohydrates. How many calories are from carbohydrates?
Mathematics
1 answer:
Misha Larkins [42]3 years ago
4 0
7.Answer=8hours

If she spends 25% of her free time on the internet. And she spends 2 hours on the internet, then we can infer the 2 hours is 25% of her free time. To find out her total amount of free time each day the following equation can be made (remember that 25% is the same as 25/100)...

   25        2hours
 ____  =________
  100           x hours

cross multiply
25x=200
divide both sides by 25
x=8 hours 

8.Answer=132 calories
If 60% of the 220 calories are carbohydrates, the following equation can be made (remember that 60% is the same as 60/100)...

   60        x
_____= ___
  100     220

Cross multiply
100x=13200
divide both sides by 100
x=132 calories are from carbohydrates
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A dozen eggs cost 3.84 at this rate how much would 50 eggs cost
Zina [86]

Answer:

50 eggs would cost 16$

Step-by-step explanation:

A dozen eggs is 12. So for 4 dozen eggs, you get 48. 48 eggs is 15.36$. If you divide the 3.84 to 12, you will get the individual price for each egg. The individual price for each egg is .32 cents. You need to add 2 more eggs to the 4 dozen to get 50 eggs. You times .32 to 2 and you get .64. After that you add .64 to the price of the 4 dozen eggs and you will get 16$

Simple version:

dozen eggs =12, cost 3.84$

4 dozen eggs= 48, cost 15.36$

3.84$ divided by 12 = .32 cents (price of the individual egg)

Add two of the individual eggs together and add it to 15.36$

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5 0
2 years ago
Find the surface area of a cone with radius 14.2 inches and slant height 24.1 inches.
ololo11 [35]

Answer:

1708.58658058

Step-by-step explanation:

Total surface area formula = (π×r²)+(π×r×s)

r = radius

s = slant height

So we substitute the values into the formula (π×r²)+(π×r×s)

(π×14.2²)+(π×14.2×24.1) = 1708.58658058

8 0
3 years ago
The hypotenuse of a right triangle measures 10 inches and the side opposite to <0 one of the non right angles is 5 inches lon
AfilCa [17]
Sin = Opposite/ Hypotenuse
Sin (theta)= 5/10
Sin^-1(5/10)=30
theta=30
5 0
3 years ago
What's the circumference of a<br> circle with a diameter of 9 inches?<br> Use 3.14 for n.
Rainbow [258]

Answer:

28.26 in

Step-by-step explanation:

Radius = (1/2) diameter

Radius = (1/2)(9)

Radius = 4.5 in

Circumference = 2πr

Circumference = 2(3.14)(4.5)

Circumference = 28.26 in

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3 years ago
I struggle pls help me ;-;
Paladinen [302]

Answer:

8

Step-by-step explanation:

you have to work out 8 times 10 witch is 80  and then you do 54 take waya 80 divided by 2

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3 years ago
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