3 years ago

The ratio of girls to boys in a class is 4:3. If the total number of students in the class are 28. How many of them are girls?

Mathematics

1 answer:

Olegator [25]3 years ago

7 0

4x + 3x = 28

7x = 28

7x/7 = 28/7

X = 4

Girls = 4

4x4 = 16

16 girls

You might be interested in

36 is 120% of what number

nadezda [96]

Let, the number = x
Then,x * 120% = 36
x * 1.20 = 36 [ 120% = 1.20 ]
x = 36 / 1.20
x = 30

In short, Your Answer would be 30

Hope this helps!

6 0

3 years ago

Read 2 more answers

I need help on 4, 5, 6, and 7 please

astraxan [27]

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

<em>Answer:</em>

4) 0.875

5) 3.6

6) 2.67

7) 0.48

Those are your answers!

7 0

4 years ago

Read 2 more answers

Which of the following is an extraneous solution of √4x+41 = x+5?

dolphi86 [110]

Answer:

x=-8

Step-by-step explanation:

on squaring both sides

either x-2=0 or x+8=0

either x=2 or x=-8

Putting x=2 in original equation, we get

7=7 hence, it is not an extraneous solution

Putting x=-8 in original equation

i.e. 3=-3

Hence, x=-8 is an extraneous solution (since it doesn't satisfy the original equation)

7 0

2 years ago

The letters G E O R G I A are placed in a bag . If you picked a card and knew it was a vowel , what is the probability that it i

GrogVix [38]

The probability that it is an A is 1/7

6 0

3 years ago

...............................

antoniya [11.8K]

Answer:

Option C is the correct option.

Step-by-step explanation:

√ 8 • √ 5

Calculate the product

$= \sqrt{40}$

Simplify the radical expression

$= \sqrt{2 \times 2 \times 10}$

$= 2 \sqrt{10}$

Hope this helps...

Best regards!!

4 0

3 years ago