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MariettaO [177]
3 years ago
6

Drew bought a Math book for $30. Later that book was marked down

Mathematics
2 answers:
Marat540 [252]3 years ago
8 0
9 is the answer I believe
pshichka [43]3 years ago
7 0

Answer:

9

Step-by-step explanation:

30/100*30

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The length of a rectangle is 3cm greater than its width. the perimeter is 24cm. what are the dimensions of the rectangle
Anit [1.1K]

We need to make an equation. The equation used to find perimeter is 2L+2W=A

We know that the area is 24 cm. We also know that the length is 3 cm more than its width: L=3+W; let's plug that equation in for L.

2(3+W)+2W=24; let's simplify the parenthesis. 6+2w+2w=24 6+4w=24; subtract 6 from both sides. 4w=18; divide both sides by 4. W=4.5

Let's find the length if the width is 4.5.

4.5+3=7.5; So, the length is 7.5 and the width is 4.5. Let's check. 2(7.5)+2(4.5)=15+9=24

So, the length is 7.5 and the width is 4.5.

7 0
4 years ago
What percent of 63 is 157.5?
Nikitich [7]

Answer:

250%

Step-by-step explanation:

\sf63 \times  x\% = 157.5

\sf  \frac{x}{100}  =  \frac{157.5}{63}

\sf  x =  \frac{15750}{63}

\sf  x = 250

8 0
3 years ago
Solve the equation. <br><br><br> 12=2+z/-6
Bogdan [553]

Answer:

\boxed{\bold{z=-60}}

Step-by-step explanation:

Switch Sides

\bold{2+\frac{z}{-6}=12}

Subtract 2 From Both Sides

\bold{2+\frac{z}{-6}-2=12-2}

Simplify

\bold{\frac{z}{-6}=10}

Multiply Both Sides By -6

\bold{\frac{z\left(-6\right)}{-6}=10\left(-6\right)}

Simplify

\bold{z=-60}

3 0
3 years ago
Read 2 more answers
Help me pls<br> will give brainliest
exis [7]

Answer:

22 qt

Step-by-step explanation:

1 gallon = 4 quart

5 × 4 + 2 = 22 qt

5 0
3 years ago
Read 2 more answers
A company that manufactures cell phones has been given a quarterly operating budget of $1,176,912.42. The company's quarterly op
amm1812

Answer:

maximum is 16,853 cell phones

≤  18.853

Step-by-step explanation:

1,176,912.42.   per quarter budget

247,638.00    per quarter fixed cost

We subtract then divide the amount cost of phones and ensure its less or rounded down.

1,176,912.42 -247,638 = 929274.42

929274.42 / 55.14 = 16853

16,852 < m ≤ 16,853

6 0
3 years ago
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