2 years ago

The ratio of boys to girls in a class is 7:9

Mathematics

1 answer:

lesya [120]2 years ago

8 0

Answer:

7/16

9/16

Step-by-step explanation:

boys =7+9 total ratio =16

ratio of boys=7/16

ratio of girls=9/16

You might be interested in

Investors buy a studio apartment for $140,000. Of this amount, they have a down payment of

vovangra [49]

Answer:

their down payment is 30%

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

If P(A) = 1/2, P(B) = 0, then P(A Î B) is???

Ainat [17]

It is given that P(A) = 1/2 and P(B) = 0
P(A Î B) = P (A ∩ B) / P(B) = P (A ∩ B)/0

As zero is in the denominator, the expression can't be defined.

In short, final answer is not defined.

Hope it helped.

4 0

2 years ago

Select all of the solutions of 4x2 - 36 = 0. If there are no solutions, select the empty set.

ruslelena [56]

Answer:

Step-by-step explanation:

4x² - 36 = 0 ⇌ (2x)² - 6² = 0 ⇌ (2x - 6)(2x + 6) = 0 ⇌ 2x - 6 = 0 or 2x + 6 = 0

⇌ x = 3 or x = -3

8 0

3 years ago

Can someone help me with this?

Alexeev081 [22]

$\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}$

Actually Welcome to the Concept of the areas,

Area of a rectangle = length * width.

hence, l = 11 and w = 4

hence, 4*11 = 44 square units.

Area = 44 sq. units

8 0

2 years ago

What’s the reciprocal of 7/2a<br><br> 2a/7<br><br> -2a/7<br><br> 7/2a<br><br> -7/2a

vfiekz [6]

The reciprocal of a number (also called the multiplicative inverse) means 1/this number or (This number)^-1

So, to get the reciprocal of 7/2a, you need to divide 1 by this number as follows:
reciprocal = 1 / (7/2a) = 2a/7

The answer is : 2a/7

6 0

3 years ago