All categories

3 years ago

The ratio of girls to boys at a local elementary school is 3:4.

Mathematics

1 answer:

Korolek [52]3 years ago

3 0

Answer:

a. 60 boys

b. 228 total students

Step-by-step explanation:

a. If there are 45 girls and the ratio of girls to boys is 3:4, then there are 60 boys. The common multiple is 15.

3 * 15 = 45

4 * 15 = 60

45:60 = 3:4

——————————

b. First we need to find out how many boys there are.

95 / 5 = 19

19 * 7 = 133

So, there are 133 boys and the given number of girls is 95. To find out how many total students there are, we need to add 133 and 95.

133 + 95 = 228

You might be interested in

Find the value of x in the question

ICE Princess25 [194]

Answer:

x=52

Step-by-step explanation:

r=90 s=34 q=180-(90+34)

180-(90+34)=56

to find angle sqr

180-56=124

124=x+72

52=x

4 0

3 years ago

Read 2 more answers

Help please with math

Mashutka [201]

Answer:

If they want irregular fractions its

1= 14/4 . 2= 11/2 3= 14/8

4= 21/4 . 5= 27/6 . 6= 125/13

7= 61/9 . 8= 69/9 . 9= 84/8

If they just want the few simplified then

1= 3 1/2

3= 1 3/4

5= 4 1/2

8= 7 2/3

9= 10 1/2

Step-by-step explanation:

4 0

3 years ago

Shiela either walks or cycles to school the probability that she walks is 0.65 if she walks the probability that she is late is

Serjik [45]

Answer:

0.705

Step-by-step explanation:

Data:

walks=0.65 and is late=0.4;is not late=0.6

cycles=0.35 and is late=0.1;is not late=0.9

The probability of sheila walking and not being late:

0.65 x 0.6=0.39

AND probability of being not late and cycling:

0.35 x 0.9=0.315

therefore,the probability of sheila walking or cycling and still not being late:

0.39+0.315=0.705

3 0

3 years ago

Devin started the work shown to solve for the unknown angle measures. 8x – 1 + 9x – 6 = 180 17x – 7 = 180 17x = 187 What are the

makvit [3.9K]

Answer:

$m$

Step-by-step explanation:

we have that

$m$

$m$ ------> by supplementary angles

Substitute the values and solve for x

$8x-1+9x-6=180\°$

$17x-7=180\°$

$17x=187\°$

$x=11\°$

Find the value of angle R

$m$

Find the value of angle Q

$m$

6 0

3 years ago

Read 2 more answers

Find the integer solutions that

kaheart [24]

Given:

The compound inequality is:

$2$

To find:

The integer solutions that satisfy the given inequality.

Solution:

We have,

$2$

Subtracting 5 from each side, we get

$2-5$

$-3$

All the real numbers between -3 and 2 are in the solution set but -3 and 2 are not included in the solution set.

The integers between -3 and 2 are -2, -1, 0, 1.

Therefore, the integer solution of the given inequality are -2, -1, 0, 1. The answer as an inequality is $-3$ .

8 0

3 years ago