Ask question

Ask question

All categories

Arte-miy333 [17]

3 years ago

5

In a class of 20 students, 40% are boys. Twenty-five percent of the boys and 50% of the girls wear glasses. How many students in

the class wear glasses?

1 answer:

attashe74 [19]3 years ago

7 0

Answer:

8

Step-by-step explanation:

40% of 20 is 8 25% of 8 is 2 50% of 12 is 6 so you will add 6+2=8

You might be interested in

Inverse of f(x)=3/2x +6

kvasek [131]

Answer:

f(x) = (x - 6)/(3/2)

Step-by-step explanation:

7 0

3 years ago

PLEASE ANSWER FAST AND CORRECTLY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Paha777 [63]

Answer:

C. 7790.83 cm^3

Step-by-step explanation:

The volume of a sphere is given by

V = 4/3 pi r^3

We know the radius is 12.3

Using 3.14 for pi (This will give us an approximation, not an exact value)

V = 4/3(3.14) (12.3)^3

=7790.82984 cm^3

6 0

3 years ago

How many solutions does the following equation have? <br><br>-6(x+7) = -4x -2

Fed [463]

Solve for x first
-6x - 42 = -4x -2
-6x = -4x + 40
- 2x = 40
X = -20
The equation has one solution

3 0

2 years ago

PLZ HELP! Work must be shown for this problem. Solve for x. Round answers to the nearest hundredth (2 decimal places).

Leviafan [203]

Answer:

About 555.43 feet

Step-by-step explanation:

The sine of an angle is equivalent to the length of the opposite side divided by the length of the hypotenuse. In this case:

$\sin 80= \dfrac{x}{564} \\\\x=\sin 80 \cdot 564\approx 555.43$

Hope this helps!

3 0

3 years ago

The lines represented by

Sliva [168]

Answer:

perpendicular lines, hope this helps <33

7 0

1 year ago