Difference just means you subtract the two numbers, so:
90 - (-2) = x
( now you would "Copy Change Opposite") so;
90 + 2 = 92 *F
Answer:
-25.5 feet
Step-by-step explanation:
2.5x7=17.5
-8-17.5=25.5
Club A: 25+30x where x is the number of lesson
Club B 55 + 20x where x is the number of lesson
when is the cost equal
25+ 30x = 55 + 20x
subtract 20 x from each side
25+ 30x -20x = 55 - 20x
25+ 10x = 55
subtract 25 from each side
25-25+ 10x = 55 - 25
10 x = 30
divide by 10
10x/10 = 30/10
x = 3
After 3 lessons the cost is equal
Steps:
1. Do 28-12= 16 girls
2. Your ratio is 12:16
3. Your answer is B. 3/4
4. This correct because
12 divided by 4 is 3
16 divided by 4 is 4
5. Your answer is 3/4
