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3 years ago

6

Suppose there are 20 questions on a multiple choice test.if 25% of the answers are choice b how many of the answers are not choi

ce b

1 answer:

zvonat [6]3 years ago

6 0

Answer:

are not choice b 75%

75/100 *20 = 1500/100=15

Step-by-step explanation:

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Paula has read 70% of the total pages in a book she is reading for English class. Paula read 84 pages. How many pages are in the

nydimaria [60]

109 pages are in the book!

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3 years ago

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Construct 3 linear equation starting with qiven solution z = 1/3

Andreyy89

Answer:

(a) $9z+2=5$

(b) $21z-11=-4$

(c) $4z=2-2z$

Step-by-step explanation:

We are required to construct 3 linear equations starting with the given solution z = 1/3.

<u>Equation 1</u>

<u /> $z=\frac{1}{3}$ <u />

Multiply both sides by 9

$9z=\frac{1}{3}\times 9\\9z=3$

Rewrite 3 as 5-2

9z=5-2

Add 2 to both sides

Our first equation is: $9z+2=5$

<u>Equation 2</u>

<u /> $z=\frac{1}{3}$ <u />

Multiply both sides by 21

$21z=\frac{1}{3}\times 21\\21z=7$

Rewrite 7 as 11-4

21z=11-4

Subtract 11 from both sides

Our second equation is: $21z-11=-4$

<u>Equation 3</u>

<u /> $z=\frac{1}{3}$ <u />

Multiply both sides by 6

$6z=\frac{1}{3}\times 6\\6z=2$

Rewrite 6z as 4z+2z

4z+2z=2

Subtract 2z from both sides

Our third equation is: $4z=2-2z$

4 0

3 years ago

I NEED HELP ASAP WHO EVER GIVES CORRECT ANSWER GETS BRAINLEST

-BARSIC- [3]

Answer:

There will be 49 fl oz of Orange Juice and 77 fl oz in total.

Step-by-step explanation:

The ratio for Orange Juice to Sparkling Water is 7:4, so for every multiple of 4 your using of water, your using that number times 7 for Orange Juice. We are given the amount of water being used, which is 28 fl oz, so we divide that by 4 to get 7, then we multiply that by 7 for the Orange Juice and get a total of 49 fl oz of Orange Juice. The last step is to add the two totals together to get the grand total, and since we have 49 fl oz of Orange Juice and 28 fl oz or Water, we add those 2 numbers together to get 77 fl oz of Punch.

6 0

3 years ago

Evaluate the expression when a=-5 and c=3.<br> a-5c

Vinil7 [7]

Answer:

its either -20 or -7

Step-by-step explanation:

i believe its -20 tho hope it helps

8 0

3 years ago

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What is the answer to this somebody!!!

Fed [463]

Use the geometric mean for right triangles as the sides are related to the hypotenuse. 30 - 6 = 24. We need that for our proportion. $\frac{24}{x}=\frac{x}{30}$ . We cross-multiply to get $x^2=720$ . Taking the square root of both sides gives us that $x=12\sqrt{5}$ , the second choice above.

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3 years ago