All categories

2 years ago

the ratio of boys to girls in a class is 5:4 there are 36 students in the class how many students are girls

1 answer:

4 0

First add up the total parts in the ratio.
5 + 4 = 9
Now we need to know the value of each part
36 / 9 = 4
The girls has total of 4 parts, therefore we can just multiply the number of parts by the amount in each part
4 x 4 = 16
So there r 16 girls in the class

You might be interested in

20. Please help I really need it

sertanlavr [38]

Step-by-step explanation:

d if not d a.................

5 0

2 years ago

Which expression is equivalent to the given expression?

PSYCHO15rus [73]

Answer:

-5(y - 3)(y - 7)

Step-by-step explanation:

Factor -5 out of all 3 terms:

-5(y^2 - 10y + 21)

Continue the factoring:

-5(y - 3)(y - 7)

Note: when answer choices are given, kindly share them. Thank you.

6 0

2 years ago

I need answer for a and b show your work

Stels [109]

I have two methods for you

7 0

2 years ago

(x + y , x - y) = (4 , 2)

Naddika [18.5K]

Step-by-step explanation:

(x + y , x - y) = (4 , 2)

x+y=4 ------(1)

x-y=2 ------(2)

_____ (adding two equation)

2x=6

x=3

From equation 1

3+y=4

y=1

6 0

1 year ago

What is the reciprocal of 0.156

marishachu [46]

Answer:

reciprocal means inverse:

$= \frac{1}{0.156} = \frac{1000}{156} \\ \\ = { \boxed{ \boxed{ \frac{250}{39} }}}$

7 0

1 year ago