Answer:
y = m x + b equation of a straight line
m m' = -1 condition for perpendicular lines
If y = 4 x - 7 then m = 4 so m' = -.25
Y = -.25 X + A we need to find A
A = Y + .25 * 8 = 2 + 2 = 4
Y = -.25 X + 4
Check:
2 = -.25 * 8 + 4 = -2 + 4 = 2
Answer:
see below
Step-by-step explanation:
Let r = number of rides
total amount of money spent has to be less than or equal to 50
costs are admission and food and rides
rides cost 1.50 each
50≥ admission + food + rides
50 ≥ 15 +10 + 1.50r
Combine like terms
50 ≥25 + 1.50 r
Subtract 25 from each side
50-25 ≥25-25 + 1.50 r
25 ≥ 1.50 r
Divide by 1.5 on each side
25/1.5 ≥ 1.5r/1.5
50/3 ≥ r
Changing this to a mixed number
16 2/3 ≥r
We can only take a whole number of rides
r = 16
Beverly has not spent all of her 50 dollars since there was a fraction for the rides
cost = 15 +10 + 1.50r
15+10 + 1.5*16
25+24
49
She has 1 dollar left
2 add them all together and divide by 6 and you get 4.007
It takes you 4.8 hours to reach New York
Step-by-step explanation:
The given is:
- It is 240 miles from Boston to New York
- You drive at a speed of 50 mph
We need to find how long would it take you to reach New York
Distance (d) = speed (v) × time (t)
∵ The distance between Boston and New York is 240 miles
∴ d = 240
∵ You drive at a speed 50 miles per hour
∴ v = 50
- Substitute these values in the rule of the distance above
∴ 240 = 50 × t
- Divide both sides by 50
∴ 4.8 = t
∴ The lime of the trip is 4.8 hours
It takes you 4.8 hours to reach New York
Learn more:
You can learn more about the speed, distance and time in brainly.com/question/9998060
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