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Mrac [35]
2 years ago
9

Please help! Will mark brainliest!

Mathematics
1 answer:
Anna71 [15]2 years ago
6 0
8/100 = x/175
cross multiply
(100)(x) = (8)(175)
100x = 1400
x = 1400/100
x = 14.....so 14 vials will treat 175 people
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The measure of two complementary angles are in the ratio 1:4. What are the degree measures of the two angles ?
777dan777 [17]

Answer:

18,72

Step-by-step explanation:

Complementary angles add to 90 degrees

Multiply the ratio by x

1x+4x = 90

Combine like terms

5x = 90

divide by 5

5x/5 = 90/5

x =18

The first angle is 18 degrees

4*18 =72

The second angle is 72 degrees

7 0
3 years ago
brittany has a pack of 24 pencils, each pencil weighs 0.9 grams. how much does the pack of pencils weigh?
Sever21 [200]
The pack of pencils weighs 21.6 grams because 0.9 times 24 is 21.6 

7 0
2 years ago
Read 2 more answers
What is the value of 2x^-2y^-2 for x = 3 and y = 2? a) 1/18 b) 72 c) 2(-6)^-4 d) 1/648
sladkih [1.3K]
2x^-2y^-2 = 2/x^2y^2 = 2/(2)^2 x (3)2 = 2/4 x 9 = 2/36 = 1/18
8 0
3 years ago
Help me pleaseeeee thankls :)
storchak [24]

Answer:

582=-28-2287u272y7329=7373+272387##82838-78338=&*27882029··⇔㏒㏑∞°²³¥378c730+8383749=0891829.9279739383/03980339.83883383383)73837

Step-by-step explanation:

6 0
2 years ago
Solve by using elimination. Express your answer as an Ordered pair (-x +2y=3 3x-2y=7
MAVERICK [17]

Answer:

(5,4)

Step-by-step explanation:

-x+2y=3

3x-2y=7

Add the like terms( 2y and -2y)(-x and 3x)(3 and 7) together. Do this vertically. 2y and -2y cancel eachother out.

  • 2x=10

Divide both sides by 2

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To find y, substitute x in for y in one of the equations

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add 5 to both sides

  • 2y=8

Divide both sides by 2

  • <u>y=4</u>

Check:

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4 0
2 years ago
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