Answer:
Step-by-step explanation:
let the number of dimes=x
and number of quarters=y
x=2y
0.10 x+0.25 y=2.25
or 10x+25y=225
divide by 5
2x+5y=45
2 ×2y+5y=45
4y+5y=45
9y=45
y=45/9=5
x=2y=2×5=10
Hence dimes=10
quarters=5
Answer:
b 1970s
Step-by-step explanation:
Answer:
Step-by-step explanation:
h(-1) = - 3|3(-1) - 6| - 3
h(-1) = - 3|-3 - 6| - 3
h(-1) = - 3|-9| - 3
h(-1) = - 3(9) - 3
h(-1) = - 27 - 3
h(-1) = - 30
Steps:
1. 6x=4y + 7
2. You have to write it in slope intercept to get the slope and y-intercept.
3. Subtract 7 on both sides
4y= 6x-7
4. Divide everything by 4
5. Y= 3/2x + -7/4
6. Slope= 3/2 y-intercept= -7/4
2 hours is the correct answer I believe
