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Over [174]
3 years ago
8

A store has 660 books in stock. If 30 percent of these books are on sale, how many books are on sale?

Mathematics
1 answer:
ivanzaharov [21]3 years ago
5 0

Answer:

198 books are on sale

Step-by-step explanation:


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A square pyramid is shown. What is the surface area?
Ket [755]
Given:
square based pyramid = 3.5 cm base
side length = 7 cm

Base Area = (3.5cm)² = 12.25cm²

Surface Area = Base Area + 2sl = 12.25cm² + (2 * 3.5cm* 7cm)
S.A = 12.25 cm² + 49 cm²
S.A = 61.25 cm²  
5 0
3 years ago
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A student said that 3:4 is equivalent to 9:16 and 18:64. What did the students do wrong?
goldenfox [79]

Answer: The students did not do anything wrong, they were right

Step-by-step explanation:

3:4 is divisible by 9:16 and by 18:64

6 0
3 years ago
Jake makes 9 loaves of olive bread. he uses 30 grams of olives in each loaf. he started with 1 kilogram of olives. how many gram
dmitriy555 [2]

Jake started with an initial amount of 1 kg of olives or 1000 grams.

He made 9 loaves of olive bread and each bread requires 30 grams of olive, therefore total amount of olives used is:

9 * 30 grams = 270 grams

 

Therefore Jakes is left with:

<span>1000 grams – 270 grams = 730 grams</span>

<span>
</span>

<span>Answer:</span>

<span>730 grams</span>

8 0
3 years ago
Carlos bought 17 boxes of cereal. This is 20% of the total boxes at the store. In order to find the total number of boxes at the
Brilliant_brown [7]

Answer:

Just a cheerful teen willing to help,

wishing you a splendiferous day.

Step-by-step explanation:

In order to find the total number of boxes, workout 100% of the boxes of cereal.

100% is 20% in 5 places,

Therefore 17×5 equals 85.

There are 85 boxes of cereal in total...

6 0
3 years ago
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Help with question 8 a and b)
Artist 52 [7]
I think when you subtract 4 from x, you are shifting the graph right horizontally 4 units.  When you add 84 at the end of the function, you are shifting it up vertically 84 units.  When you times it by -5, you are stretching it by a factor of 5 and flipping it upside down.

just think of how each term effects the y value.  
5 0
3 years ago
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