Im pretty sure
a = 65
b= 80
Answer:
32 1/3 or 2/6
Step-by-step explanation:
but 1/3 is better
Answer: A.
Step-by-step explanation: yes
Answer:
If two lines are perpendicular to the same line, then the two lines are parallel, and if two lines are parallel, then their slopes are equal
Step-by-step explanation:
Answer:
Step-by-step explanation:
If all 21 coins were dimes, she'd have $2.10. But she has 90 more cents than that. Now for each coin that's a quarter, not a dime, she has 15 cents more. 90/15= 6. So there are 6 quarters, and 21-6 = 15 dimes.
Now we do it backwards to see if it's right. 6 quarters is $1.50, 15 dimes is $1.50, add those together and you get $3. So it's right. 6 quarters, 15 dimes.
