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strojnjashka [21]
3 years ago
14

A class is made up of 16 boys and 4 girls. Half of the girls wear glasses. A student is selected at random from the class. What

is the probability that the student is a girl with glasses?
Mathematics
2 answers:
Norma-Jean [14]3 years ago
6 0

Answer:

2/20 or 1/10

Step-by-step explanation:

There are 20 total students in the class and half of the 4 girls wear glasses which is equal to 2 so the answer is 2/20 or 1/10 simplified

zysi [14]3 years ago
5 0

Answer:

2/20 or 1/10

Step-by-step explanation:

4 out of 20 are girls, of which two have glasses

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A fruit stand sells apples, peaches and tomatoes. Today, they sold 4 apples for every 5 peaches. They sold 2 peaches for every 3
Brrunno [24]

Answer:

He sold 32 apples, 40 peaches and 60 apples.

Step-by-step explanation:

We are given that

4 apples are sold every 5 peaches and

3 tomatoes are sold every 2 peaches.

i.e. the ratio is apples: peaches = 4 : 5     ...... (1)

and the ratio peaches: tomatoes = 2 : 3   ...... (2)

Peaches are the common link here in both the ratio terms.

Let us make the peaches value in both the <em>ratio as 10 </em>to make it equal in both the ratio terms.

Multiply (1) by 2 and (2) by 5:

The ratio becomes;

apples:peaches = 8:10

peaches: tomatoes = 10:15

In other words, the ratio becomes:

apples:peaches:tomatoes = 8:10:15

Let the number of apples = 8x

Let the number of peaches = 10x\\

Let the number of tomatoes = 15x

We are given that total fruits are = 132

\Rightarrow 8x+10x+15x = 132\\\Rightarrow 33x = 132\\\Rightarrow x =4\\

So, number of apples sold = 8 \times 4 = 32

Number of peaches sold = 10 \times 4 = 40

Number of tomatoes sold = 15 \times 4 = 60

7 0
3 years ago
Find the value of x and z
Andrew [12]

Answer:

z+150=180

z=30

then again

x+x+20+30=180

2x=180-50

2x=130

x=130/2

x=65

Step-by-step explanation:

x

7 0
3 years ago
7 times as much as the sum of 1/3 and 4/5
Zanzabum
Well first we want to divide 1 by 3 , which is 0.3  ,  Now we need to divide 4 by 5 which is 0.8 . 

We have our answers but 7 needs to be added by their sum so lets put them together by adding them : 0.3 + 0.8 = 1.1.

Now lets add 7 and 1.1 all together , which is 8.1.

_________________________________________________

I hope this helps you a lot :)

8 0
4 years ago
Read 2 more answers
2/3÷-4/5 what is two thirds divided by negative four fifths
RUDIKE [14]
I think that this is the resolution
2/3×5/-4 = 10/-12
hope this helps
6 0
3 years ago
Read 2 more answers
How many reading questions do i need to get correct to go up from a 620 to a 700?
TiliK225 [7]
700-620=80 so 80 reading questions
7 0
3 years ago
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