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Lelu [443]
3 years ago
9

Gillian purchased 25 books at the library book sale. Each hardcover book cost $1.50, and each paperback book cost $0.50. Gillian

spent a total of $26.50. The book costs can be represented by the system of equations below.
h + p = 25
1.50h + 0.50p = 26.50

How many paperback books did Gillian buy?
11
12
13
14
Mathematics
2 answers:
pantera1 [17]3 years ago
7 0

Answer:

A on E2020

Step-by-step explanation:

Just did the test on Edge 2020

aev [14]3 years ago
3 0

Answer: The answer is 11 (A)


Step-by-step explanation:


You might be interested in
I need help please :/
OleMash [197]

Part (a)

Plug in y = 0 and solve for x. Use the zero product property

y = x(x+3)(x-2)

0 = x(x+3)(x-2)

x(x+3)(x-2) = 0

x = 0 or x+3 = 0 or x-2 = 0 .... zero product property

x = 0 or x = -3 or x = 2

The three roots or zeros are x = 0 or x = -3 or x = 2

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

Part (b)

The roots of the graph are: x = -2, x = 1, x = 3. Each root is where the graph crosses or touches the horizontal x axis.

Note how x = 0 is found in part (a), but not found here. This is one example where the graphs don't match. Another would be x = -3 is in part (a), but not here.

So that's why the graph does <u>not</u> match with the function in part (a)

7 0
3 years ago
The value of a certain rare stamp is 160% of its value three years ago if the stamp is worth $220 then what is it’s worth today
xz_007 [3.2K]

Answer:

572$

Step-by-step explanation:

100% of 220 is 220 so add them together. Then find 60 % of 220. To find 10% of a number move the decimal to the left one time. Which is 22. After that, multiply 22 by 6 because it's 60%. then ad 220+220+132=572.

6 0
3 years ago
Read 2 more answers
Evaluate: 4+8\div2\times \left(6-3\right)<br> 18<br> 25<br> 16<br> 33
morpeh [17]

<em>Answer:</em>

16

<em>Step-by-step explanation:</em>

4+8\div \:2\times \left(6-3\right)  =4+8\div \:2\times \:3 =4+12 =16

<h3><em>Hope I helped you!</em></h3><h3><em>Success!</em></h3>

<em>by a romanian guy...</em>

4 0
3 years ago
An electrician charges $15 plus $11 per hour. Another electrician charges $10 plus $15 per hour. Which of the systems of equatio
olga2289 [7]

y=11x+15

y=15x+10

This is the system of equariob

7 0
3 years ago
$53,000 is placed in an investment account that grows at a fixed rate of 2% (compound growth) per year. how much is in the accou
ella [17]

Answer:

$57,369

Step-by-step explanation:

We have been given that an amount of $53,000 is placed in an investment account that grows at a fixed rate of 2% (compound growth) per year. We are asked to find the amount in the account after 4 years.

To solve our given problem we will use compound interest formula.\

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

A = Final amount after t years,

P = Principal amount,

r = Annual interest rate in decimal form,

n = Number of times interest is compounded per year,

t = Time in years.

Let us convert our given rate in decimal form.

2\%=\frac{2}{100}=0.02

Upon substituting our given values in compound interest formula we will get,

A=\$53,000(1+\frac{0.02}{1})^{1*4}

A=\$53,000(1+0.02)^{4}

A=\$53,000(1.02)^{4}

A=\$53,000*1.08243216

A=\$57368.90448\approx \$57,369

Therefore, an amount of $57,369 will be in the account after 4 years.

3 0
3 years ago
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