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Sliva [168]
4 years ago
10

There are 45 books on a bookshelf. if 9 are mystery books, what percent of the books on the bookshelf are mystery books?

Mathematics
1 answer:
Kay [80]4 years ago
4 0
20%, just calculate the fraction of mystery books and multiply that by 100 %
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Professor Walter precisa pintar uma quadra, que tem o formato retangular, cujo comprimento é de 45 m por 38 m. Para isso ele vai
ololo11 [35]

Answer:

24 buckets

Step-by-step explanation:

Given that :

Dimension of rectangular block = 45 m by 38 m

A bucket of paint will cover 72m² of floor

Total area of floor : Length * Width

Total Area = (45m * 38m) = 1710 m²

Buckets of paint required :

Total area / Area per bucket

= 1710m² / 72m²

= 23.75 buckets

= 24 buckets

3 0
3 years ago
There is a ratio of 3 boys to every 4 girls. if there are 245 total students, how many are boys
Sophie [7]

Answer:105 boys


Step-by-step explanation :for every group of 7 students (3+4) there are 3 boys and 4 girls. And how many groups do we have? We have:

245/7= 35 We have 35 groups, and we just said that each group has 3 boys and 4 girls:

35*3= 105 boys

35*4= 140 girls

Total: 245 students


3 0
3 years ago
94 POINTS! MATH<br><br> Each answer is either a &lt; &gt; + or NC
BabaBlast [244]

Answer:

1) ST > MN

2) BA > BC

3) angle A > angle F

4) angle L < angle R

Step-by-step explanation:

In all cases the sides adjacent to the specified angle are unchanged in both triangles.

Decreasing the angle decreases the opposite side.

Decreasing the opposite side decreases the angle.

For item 2, the triangles are ADB and CDB.

5 0
3 years ago
Read 2 more answers
Trevon is making payments on a car that costs $26,555. He makes 36 equal payments.If he rounds the equal payments up to the near
scoundrel [369]

Trevon will overpay around $13

Further explanation:

One time payment will be calculated by dividing the total amount by 36 and then the answer will be rounded off to nearest dollar

So,

Given

Cost\ of\ car=\ 26555\\Number\ of\ payments=36\\Amount\ of\ one\ payment = \frac{26555}{36}\\=737.64

One time payment is 737.64. Rounding off to nearest dollar gives us 738.

If 738 is paid 36 times,

Total\ amount\ paid=36*738=26568

The amount that will be overpaid is:

=26568-26555=13

Trevon will overpay around $13

Keywords: Installments, Profit

Learn more about installments at:

  • brainly.com/question/10879401
  • brainly.com/question/10940255

#LearnwithBrainly

6 0
3 years ago
a map distance of 5 inches represents 200 miles of actual distance. suppose the distance between two cities on the map is 7 inch
Eva8 [605]
Set up a proportion:

5/200 = 7/x

Cross multiply:

200 * 7 = 5 * x

1400 = 5x

Divide 5 to both sides:

x = 280
3 0
3 years ago
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