100$ because the income you have to earn is 400$, right? If so then 100 * 4 give you 400.
Let x be the number of 5 points question.
Let y be the number of 2 points question.
Total number of questions is 38
x + y = 38
Total points is 100
5x + 2y = 100
x + y = 38 ------------- (1)
5x + 2y = 100 ---------(2)
From (1):
x + y = 38
x = 38 - y -------------- sub into (2)
5(38 - y) + 2y = 100
190 - 5y + 2y = 100
3y = 90
y = 30 ------------------ sub into (1)
x + 30 = 38
x = 38 - 30
x = 8
There are 8 5-point questions and 30 2-point questions
Answer:
Frank drove 176 miles.
Step-by-step explanation:
Subtract the base fee from the total payment
152.75 - 18.99 = 133.76
divide the remaining amount(price for miles driven) by the cost for each mile
133.76 / .76 = 176
176 miles.
Answer:
x = 8
Step-by-step explanation:
A common pythagorean triplet is 7, 8, 9
Answer:
New coordinates:
A: (2,-4)
B: (6,-4)
C: (7,1)
D: (3,1)
Step-by-step explanation:
You translate each of the starting coordinates by adding or subtracting them by the coordinates given.
x coordinates: 0+2=2 y coordinates: 0-4= -4
4+2=6 0-4= -4
5+2=7 5-4= 1
1+2=3 5-4= 1
