3 years ago

How do u find the rule of this problem

Mathematics

1 answer:

tatyana61 [14]3 years ago

8 0

Answer:

Tell me more about the question I know how it works

You might be interested in

Tickets to the museum cost $18 for adults and $12 for children. A group of 20 people went to the museum, and the tickets cost $3

poizon [28]

X= adults
y=children

x+y=20
x=20-y

18x+12y=324
18(20-y)+12y=324
360-18y+12y=324
-6y=324-360
-6y=-36
y=-36/-6
y=6

x=20-y
x=20-6
x=14

14 adults and 6 children

8 0

3 years ago

Plz answer don't get it

Leokris [45]

The answer is 8, because 3 times 4 = 12 and 20 - 12 = 8

6 0

4 years ago

Read 2 more answers

What is the value of x?

Alexus [3.1K]

Answer:

x = 22.5

Step-by-step explanation:

$\frac{BH}{DH} = \frac{HM}{HT} \\ \frac{6}{15 + 6} = \frac{9}{9 + x} \\ \frac{6}{21} = \frac{9}{9 + x} \\ 6(9 + x) = 9 \times 21 \\ 54 + 6x = 189 \\ 6x = 189 - 54 \\ 6x = 135 \\ x = \frac{135}{6} \\ x = 22.5$