Participant A runs
2.75 laps in 5 minutes.
2.75/5 = 0.55 lap/minute
If x = minutes, and y = laps, then the equation for Participant A is
y = 0.55x
y = 0.3x and y = 0.5x represent a slower participant than A.
Participant A is slower than Participant B, so Participant B must run faster than Participant A.
y = 0.7x and y = 0.9x represent a faster race that y = 0.55x
Answer:
y = 0.7x
y = 0.9x
Difference in doughnuts = 50 - 40 = 10
Difference in money = 15 + 5 = 20
20 ÷ 10 = $2
Each doughnut costs $2
<em>Check:</em>
40 x 2 + 5 = $85
50 x 2 -15 = $85
Ravi has $85 at first.
Each doughnut costs $2
13/25 because I got the answer right
Answer:
The number is -1
Step-by-step explanation:
The equation for the first part is (2n+7)2. This is because "twice a number" is 2n and "7 is added" will make it 2n+7. The "sum is multiplied by two" Is multiplying everything by two. This will make it (2n+7)
The second part is -8n+2. Since a number is multiplied by negative eight it will be -8n. Then it is added by two.
Both equation equal each other the overall equation will be (2n+7)2=-8n+2
You will distribute. making it 4n+14=-8n+2
Add 8n to both sides making it 12n+14=2
subtract 14 from both sides making it 12n=-12
Divide both sides by 12 . making it number=-1
Answer:
I cant see the question :/
Step-by-step explanation:
