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2 years ago

10

There are 40 students in a class.Girls make up 60%of the class.25% of girls wear glasses.How many girls in the class wear glasse

s.

1 answer:

Stells [14]2 years ago

4 0

Answer:

12

Step-by-step explanation:

40 times 0.6 is 24. 24 times .25 is 12

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Muriel says she has written a system of two linear equations that has an infinite number of solutions. One of the equations of t

Vanyuwa [196]

An infinite number of solutions means a coincident line...it is the same line
3y = 2x - 9...divide by 3
y = 2/3x - 3...hmm...same line as answer choice b....they are coincident lines and have infinite solutions

3 0

3 years ago

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Which of the following sums would be under the radical symbol to find the distance between the points (7, -1) and (-8, -9)?

fomenos

The "distance formula" an extension of the Pythagorean Theorem is:

d^2=(x2-x1)^2+(y2-y1)^2 in this case:

d^2=(-8-7)^2+(-9--1)^2

d^2=(-15)^2+(-8)^2

d^2=15^2+8^2

d=√(15^2+8^2)

So the answer is 15^2+8^2

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3 years ago

Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bars.

N76 [4]

Answer:

Midline: -2

Amplitude: 1.5

Period: 4

Step-by-step explanation: I got it right on the plato test.

The Midline is the middle of the number of the function.

The Amplitude is from the midline to the highest or lowest point of the function.

The period is the distance on the x axis from the two points.

Hope this helps!

6 0

2 years ago

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Pre algebra help ! Easy

vitfil [10]

The only answer is 1

3 0

3 years ago

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Is this wrong If so please explain why or why not

vovangra [49]

Answer:

2: The perimeter of the base is 37 units.

Step-by-step explanation:

1. A = LW = 21 * 16 = 336 units^2 True

2. P = 2(L + W) = 2(21 + 16) = 2(37) = 74 units False

3. H = 21 units True

4. SA = 2LW + 2H(L + W) = 2(21)(16) + 2(21)(21 + 16) = 2226 units^2 True

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2 years ago