All categories

3 years ago

In one class the ratio of boys to girls is 5:6 if in this class it has 10 boys how much girls in this class

Mathematics

2 answers:

sweet [91]3 years ago

5 0

Answer:

Step-by-step explanation:

The 5 parts of the ratio represents 10 boys.

Divide number of boys by 5 to find the value of one part of the ratio.

$\frac{10}{5}$ = 2 ← value of 1 part of the ratio

There are 6 parts of the ratio representing girls, thus

6 × 2 = 12 ← number of girls in the class

tigry1 [53]3 years ago

3 0

Answer:

Step-by-step explanation:

5 : 6 = Number of boys to girls

(We have to ×2 to get from 5 to 10 so we must ×2 from 6 to 12)

10 : ? = Number of Boys to girls

10 : 12 = Number of Boys to girls

You might be interested in

Ac=22 bc=x+14 ab=x+10 find x

Nesterboy [21]

AB + BC = AC Segment Addition Postulate

(x + 10) + (x + 14) = 22 Substitution

2x + 24 = 22 Simplify (added like terms)

2x = -2 Subtraction Property of Equality

x = -1 Divison Property of Equality

Answer: x = -1

5 0

3 years ago

Kiteretsuki builds a robot to help him paint a fence. The robot has a paint roller of width 1 foot, that works like a ball-point

balandron [24]

Answer:

72 inches

Step-by-step explanation:

Due to the programming error, the robot first moves to the right and then to the left. The second time it moves to the right, it increases its distance by 1 foot to the right and then turns back and moves to the left, reaching the starting position again.

The patterns is as follows:

move 1: moves to the right by 1 foot.

moves 2: moves to the left.

moves 3: moves to the right by 2 feet.

moves 4: moves to the left

moves 5: moves to the right by 3 feet.d

moves 6: moves to the left

moves 7: moves to the right by 4 feet.

moves 8: moves to the left

moves 9: moves to the right by 5 feet.

moves 10: moves to the left

moves 11: moves to the right by 6 feet.

We see that in the end, the robot has managed to only move 6 ft. Since 1 ft = 12 inches, 6 ft = 6* 12 = 72 ft.

So, the robot has painted 72 inches of the fence before Kiteretsuki returns.

8 0

3 years ago

Solve the equation if 0 degrees<=x<=360 degrees. tanx=sqrt 3

storchak [24]

Answer:

Step-by-step explanation:

hello :

tanx = √3 0°≤x≤360°

x = 60°

x=240°

4 0

3 years ago

Determine the area of the composite figure to the nearest whole number.

Luba_88 [7]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Two number cubes are rolled sequentially. What is the probability that the first number cube shows a five and the other number c

nexus9112 [7]

The probability of first number cube shows a five and the other number cube shows an even number is $\frac{1}{12}$ .

Solution:

Two cubes are rolled sequentially.

Sample space when two dies are rolled

$=\left\{\begin{array}{l}{(1,1),(1,2),(1,3),(1,4),(1,5),(1,6)} \\{(2,1),(2,2),(2,3),(2,4),(2,5),(2,6)} \\{(3,1), 3(, 2),(3,3),(3,4),(3,5),(3,6)} \\{(4,1),(4,2),(4,3),(4,4),(4,5),(4,6)} \\{(5,1),(5,2),(5,3),(5,4),(5,5),(5,6)} \\{(6,1),(6,2),(6,3),(6,4),(6,5),(6,6)}\end{array}\right\}$

Number of sample space = 36

Even numbers getting when two cubes rolled are 2, 4, 6.

First number cube shows a five and the other number cube shows an even number = {(5, 2), (5, 4), (5 6)}

Number of first number cube shows a five and the other number cube shows an even number = 3

Probability of first number cube shows a five and the other number cube shows an even number

$=\frac{\text{Number of outcomes}}{\text{Total number of sample space}}$

$$=\frac{3}{36}$

$$=\frac{1}{12}$

Hence, the probability of first number cube shows a five and the other number cube shows an even number is $\frac{1}{12}$ .

8 0

3 years ago