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Svet_ta [14]
3 years ago
12

Will mark brainliest! 10 points!

Mathematics
1 answer:
Sonbull [250]3 years ago
3 0

im not t he best at math but i think its a base on the question

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The variable z is directly proportional to x, and inversely proportional to y. when x is 16 and y is 17, z has the value 11.2941
Tresset [83]

Lets suppose k is the constant of proportionality.

z = k * x / y

when x is 16 and y is 17, z has the value 11.294117647059

11.294117647059 = k * 16/17

Multiplying 17 on both sides

11.294117647059 * 17 = k * 16

192 = k * 16

Dividing 16 on both sides

192/16 = k

k = 12

Now when x= 22, and y= 26

z = k * x/y

z = 12 * 22 / 26

z = 10.1538461538 : Answer

Hope it will help :)

8 0
3 years ago
Please help me with question b) and please explain!!<br>look at the attached image
natta225 [31]

Answer:

17

Step-by-step explanation:

let x be the number of boxes to be shaded to make it 80%

x = 80% of total number

= 80/100 of 25

= 80/4

= 20

So 20 need to be shaded to fill 80%

Now, 13 of the grids are already shared so the amount of more squares that need to be shaded = 20-13

= 17 squares

4 0
3 years ago
Read 2 more answers
In a class, 6 students are girls who wear glasses. 14 students wear glasses. If there are 16 girls in the class, how many boys w
irga5000 [103]
There are 6 girls who wear glasses in the class, so the remaining must be the boys. 14-6=8 so there must be 8 boys who were glasses
7 0
3 years ago
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The sandbox is in the shape of a right rectangular prism. The area of the base of the sandbox is 124.8 square centimeters, and i
Genrish500 [490]

Answer: he will need 355.68 centimeters³ of sand to fill half of the sandbox

Step-by-step explanation:

The formula for determining the volume of a rectangular prism is expressed as

Volume = length × base × height

It can also be expressed as

Volume = base area × height

The area of the base of the sandbox is 124.8 square centimeters, and it will have a height of 5.7 centimeters. This means that the volume of the sandbox is

124.8 × 5.7 = 711.36 centimeters³

Since Mr. Berger plans to fill the sandbox half full of sand, the volume of sand he will need to fill half of the sandbox is

711.36/2 = 355.68 centimeters³

5 0
3 years ago
What is the least 1/2 x 3/4, 3/4 + 1/8, 1/2 + 1/4​
postnew [5]

Answer:

1/8

Step-by-step explanation:

8 0
3 years ago
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