Answer:
=-9/5
Step-by-step explanation:
He should get $1.25 a week because the other option would only earn him $0.07 a week.
If you do .41x122 you get 50
Answer:
how many 2/3's are "in 1" means how many times 2/3 can be divided into 1. Anything divided into 1 is the inverse of what's divided into 1. So there are 1/ (2/3)s. That's = 3/2. 3/2 is one and a half. If you add 2/3 and half of 2/3, you get 3/3, which is 1. So it's right.
Step-by-step explanation:
hope it helps
Answer:
40 mL of 10% acid
80 mL of 25% acid
Step-by-step explanation:
x = volume of 10% acid solution
y = volume of 25% acid solution
Total volume is:
x + y = 120
Total amount of acid is:
0.10 x + 0.25 y = 0.20 (120)
Solve by substitution.
0.10 x + 0.25 (120 − x) = 0.20 (120)
0.10 x + 30 − 0.25 x = 24
0.15 x = 6
x = 40
y = 80