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rewona [7]
3 years ago
11

Mikey has $100 to spend on books. She wants to buy at least 14 books. Hardback books cost $15.00 and paperback books cost $7.00.

Mathematics
1 answer:
fomenos3 years ago
8 0
A. x+y<100
15x+7y>14 is the right answer
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An account earns simple interest. Find the interest earned. $1200 at 2.8% for 30 months
sasho [114]

let's bear in mind that a year has 12 months, so 30 months is really 30/12 years.


\bf ~~~~~~ \textit{Simple Interest Earned}&#10;\\\\&#10;I = Prt\qquad&#10;\begin{cases}&#10;I=\textit{interest earned}\\&#10;P=\textit{original amount deposited}\dotfill & \$1200\\&#10;r=rate\to 2.8\%\to \frac{2.8}{100}\dotfill &0.028\\&#10;t=years\to \frac{30}{12}\dotfill &\frac{5}{2}&#10;\end{cases}&#10;\\\\\\&#10;I=(1200)(0.028)\left( \frac{5}{2} \right)\implies I=84

8 0
3 years ago
This is the pic........
aniked [119]

Answer:

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6 0
3 years ago
Solve (x – 4)^2=5<br> Hhhhhbb
Oxana [17]

Answer:

x = 4 + sqrt(5) or x = 4 - sqrt(5)

Step-by-step explanation:

Solve for x:

(x - 4)^2 = 5

Take the square root of both sides:

x - 4 = sqrt(5) or x - 4 = -sqrt(5)

Add 4 to both sides:

x = 4 + sqrt(5) or x - 4 = -sqrt(5)

Add 4 to both sides:

Answer: x = 4 + sqrt(5) or x = 4 - sqrt(5)

6 0
3 years ago
At the beach 29% of people have red towels and 18% have white towels if the rest have blue ,what percentage of the people at the
Vikki [24]
The percent of people with blue towels would be the remaining percent when you add the red and wight towels together.
a.k.a
53% would have blue towels.


6 0
4 years ago
Select the two binomials that are factors of this trinomial.
Stella [2.4K]

we are given

trinomial as

x^2 -x -12

now, we can factor it

x^2 -x -12= x^2 -4x +3x -4*3

x^2 -x -12= x(x -4) +3(x -4)

x^2 -x -12= (x-4)(x+3)

so, option-C and D ..............Answer

4 0
4 years ago
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