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Alex73 [517]
3 years ago
7

Help me pleaseeeeeeeeeee

Mathematics
2 answers:
stiv31 [10]3 years ago
8 0

Answer:

top left questions answer is B

the area of the triangle is A

Volume of the cylinder is B

The area of the triangle for q 17 is A

ser-zykov [4K]3 years ago
3 0

Answer:

1. b

2.a

17.c

Step-by-step explanation:

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Convert 0.5 to a ratio of integers
castortr0y [4]
Convert 0.5 into fraction and then into ratio

=>0.5

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5 0
3 years ago
The hardcover version of a book weighs 7 ounces while its paperback version weighs 5 ounces. Forty-five copies of the book weigh
konstantin123 [22]

Answer:

33 copies were paperback and 12 were hardcover.

Step-by-step explanation:

Let h represent the number of hardcover copies and p represent the number of paperback copies.

We know that the total number of copies was 45; this gives us the equation

h+p = 45

We know that each hardcover copy is 7 ounces; this gives us the expression 7h.

We also know that each paperback copy is 5 ounces; this gives us the expression 5p.

We know that the total weight was 249 ounces; this gives us the equation

7h+5p = 249

Together we have the system

\left \{ {{h+p=45} \atop {7h+5p=249}} \right.

We will use elimination to solve this.  First we will make the coefficients of the variable p the same; to do this, we will multiply the top equation by 5:

\left \{ {{5(h+p=45)} \atop {7h+5p=249}} \right. \\\\\left \{ {{5h+5p=225} \atop {7h+5p=249}} \right.

To eliminate p, we will subtract the equations:

\left \{ {{5h+5p=225} \atop {-(7h+5p=249)}} \right. \\\\-2h=-24

Divide both sides by -2:

-2h/-2 = -24/-2

h = 12

There were 12 hardcover copies sold.

Substitute this into our first equation:

12+p=45

Subtract 12 from each side:

12+p-12 = 45-12

p = 33

There were 33 paperback copies sold.

3 0
3 years ago
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5 0
3 years ago
Find y. round to the nearest tenth:
Nimfa-mama [501]

x

Step-by-step explanation:

I AM WRONG I THINK....... THANKS FOR DEM POINTS BRODA OR SISTA

4 0
2 years ago
Which of the following is the solution to 17 - 2x = -11?<br> -14<br> -3<br> 3<br> 14
mr Goodwill [35]
14 because - 11-17=-28. If you divide -28 by -2x you get 14
4 0
2 years ago
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