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Jlenok [28]
3 years ago
15

Karen reads 20 pages of her book in half hour. If she reads for 3 hours at that same rate, about how many pages of her book can

Karen read?
Mathematics
2 answers:
GrogVix [38]3 years ago
8 0

Answer:


120 pagesStep-by-step explanation:

well we just need to multiply 180/30 because 60 by 3 and we are gonna be reading for 3 hours. so that is 6. then we multiply 20 by 6 which is 120

so she can read 120 pages

julsineya [31]3 years ago
4 0

Answer:

She can read 120 pages

Step-by-step explanation:

We can use ratios to solve

20 pages      x pages

--------------- = -----------

1/2 hour            3 hours


Using cross products

20 *3 = 1/2 x

Multiply by 2

20*3*2 = 1/2 *2 *x

120 = x

She can read 120 pages

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Otis plans to make 3 batches of sidewalk chalk How much plaster of paris does he need
den301095 [7]

Answer:

4\frac{1}{2} cups plaster of paris.

Step-by-step explanation:

Given:

for one batch of sidewalk chalk = 1\frac{1}{2} cup plaster of paris.

Number of bathes = 3

We need to find quantity of plaster of paris.

Solution:

For making 1 batch of sidewalk chalk = 1\frac{1}{2} cup plaster of paris.

For making 3 batches of sidewalk chalk = 3\times 1\frac{1}{2} cup plaster of paris.

= 3\times \frac{2\times 1+1}{2}

= 3\times \frac{2+1}{2}

= 3\times \frac{3}{2}

= \frac{3\times 3}{2}

= \frac{9}{2}

=4\frac{1}{2}

Therefore, he needed 4\frac{1}{2} cups plaster of paris.

5 0
3 years ago
Important guyz.....
dusya [7]

Answer:

When two functions combine in a way that the output of one function becomes the input of the other, the function is a composite function.

Step-by-step explanation:

In mathematics, the composition of a function is a step-wise application. For example, the function f: A→ B & g: B→ C can be composed to form a function that maps x in A to g(f(x)) in C. All sets are non-empty sets. A composite function is denoted by (g o f) (x) = g (f(x)). The notation g o f is read as “g of f”

3 0
2 years ago
PLS HELP ASAP!!
zepelin [54]

Answer:

D

Step-by-step explanation:

A = P(1 + \frac{r}{n})^{nt}\\

[5000* (1+0.125)]/12 =234.375, rounds up to $234.38

8 0
3 years ago
HELPPP KE PJEASE. ASAPPPP ITS FOR A QUIZZZ
san4es73 [151]
=(1/2) * 2 * 3.2 + (1/2) *2 * 3.2 + (1/2) * 2 * 4 + (1/2) * 2 * 4
= 2 * 3.2 + 2 * 4
= 2 * (3.2 + 4)
= 2 * 7.2
= 14.4 sq feet
2 * 14.4 = 28.8 sq feet
8 0
3 years ago
How many inches are in 4 1/2 feet ?
mixas84 [53]

Answer:

54.

Step-by-step explanation:

(self-explanatory.)

7 0
2 years ago
Read 2 more answers
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