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2 years ago

Of 250 student 175 of them walk what is the percent of the student that don't walk

Mathematics

2 answers:

Allushta [10]2 years ago

6 0

It is 70% Because:

250/100 + 175/x

Proportions

tankabanditka [31]2 years ago

6 0

Your answer would come out to 0.3 so there for 30% do not walk

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Sumalee won 40 super bouncy balls playing horseshoes at her school's game night later she gave two to each of her friends she on

inn [45]

She has 11 friends,

20 of the balls=5 friends and the rest =6 friends. I may be wrong so check this for yourself to be sure. :)

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2 years ago

Solve mixture problems. George wishes to increase the percent of acid in 50m / of a 15% acid solution in water to 25% acid, how

fenix001 [56]

Answer:

x = amount of pure acid to be added = 6.67ml

Step-by-step explanation:

George wishes to increase the percent of acid in 50ml of a 15% acid solution in water to 25% acid, how much pure acid must you add?

let

x = amount of pure acid to be added

15% of 50 + x = 25% of 50 + x

(0.15 * 50) + x = 0.25(50 + x)

7.5 + x = 12.5 + 0.25x

Collect like terms

x - 0.25x = 12.5 - 7.5

0.75x = 5

x = 5/0.75

x = 6.6666666666666

Approximately,

x = 6.67

x = amount of pure acid to be added = 6.67ml

7 0

2 years ago

The graph of 15x + 7y = 15 is shown on the grid. Which ordered pair is in the solution set of 15x + 7y ≥ 15?

elena55 [62]

Answer:

The correct option is c.

Step-by-step explanation:

The given equation is

$15x+7y=15$

The given inequality is

$15x+7y\geq 15$

A point will contained in solution set if the above inequality satisfied by that point.

Check the point (0,-3),

$15(0)+7(-3)\geq 15$

$-21\geq 15$

This statement is false, therefore option a is incorrect.

Check the point (-3,0),

$15(-3)+7(0)\geq 15$

$-45\geq 15$

This statement is false, therefore option b is incorrect.

Check the point (3,3),

$15(3)+7(3)\geq 15$

$66\geq 15$

This statement is true, therefore option c is correct.

Check the point (-3,-3),

$15(-3)+7(-3)\geq 15$

$-66\geq 15$

This statement is false, therefore option d is incorrect.

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2 years ago

Given this expression:

Darya [45]

Answer:

the coefficient of x^2 is 16

Step-by-step explanation:

is the number in front of the variable and exponent

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2 years ago

Find the indicated side of the triangle. b 7 45° a b = [?]VO

vodka [1.7K]

Answer:

7√2

Step-by-step explanation:

Thank to the give angle we can say that the two legs are congruent

b = $\sqrt{7^2 + 7^2} = \sqrt{49+49} = \sqrt{98}$

98/2 = 49

49/7 = 7

7/7 = 1

98 = 7^2 x 2

√98 = 7√2

8 0

2 years ago