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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

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Mara and Jonathan each created a sequence of numbers using a rule. Both sequences start with 0 as the first number. Mara’s rule

Masja [62]

Answer:

Both can be true irrespective of the common difference.

6 0

3 years ago

There are 5 types of fruit in a basket. There are 3 apples, 2 bananas, 4 oranges, 5 kiwi, and 1 passionfruit. You ask a friend t

creativ13 [48]

Answer:

Five out of fifteen or one out of three

Step-by-step explanation:

Add up all of the fruit in the basket - 15

Number of kiwi - 5

If you simplify 5/15 you get:

1/3

3 0

2 years ago

What value of x satisfies

LenaWriter [7]

Answer:

See explanation

Step-by-step explanation:

The given trigonometric equation is $cos(90-x)=-\frac{\sqrt{3} }{3}$ .

We take the inverse cosine of both sides to get:

$90-x=cos^{-1}(-\frac{\sqrt{3} }{3})$

$90-x=125$

$x=125-90$

$x=-35\degree=325\degree$ to the nearest degree

None of the options satisfies the given equation.

But if the question is actually;

$cos(90-x)=-\frac{\sqrt{3} }{2}$

Then;

$90-x=\cos^{-1}(-\frac{\sqrt{3} }{2})$ .

$90-x=210$ .

$90-x=210$ .

$x=-120\degree$ .

Or

$x=360-120=240\degree$ .

In this case the answer will be B

5 0

3 years ago

Read 2 more answers

What is 676,547 rounded to the nearest ten thousand?

alisha [4.7K]

680,000 is the answer

3 0

2 years ago

Read 2 more answers

A store in Campbell purchased a crystal sculpture at a cost of $100 and marked it up 100%. Later on, Stefan bought the crystal s

gtnhenbr [62]

Answer:

$218

Step-by-step explanation:

$100 times 100% = $200

9% of 200 = 200X.09 = 18

200 + 18 = 218

6 0

2 years ago