3 hours = 180 minutes.
180 / 30 = 6
22 * 6 = 132
Koby can work about 132 maths problems in 3 hours.
Answer:
1. 40-p+w
2. $4 left
I'm not sure about the first one, but I'm pretty sure about the second one.
Step-by-step explanation:
81
substitute the given values for x and y into the expression
x²y² = (3)² × (3)² = 9 × 9 = 81
Answer:
124/67 and 1/3
Step-by-step explanation:
The second ratio is 1.5/4.5, which readily reduces to 1/3.
Dividing both numerator and denominator of 24.8 / 13.4 by 2 yields the simpler 12.4 / 6.7 or 124/67. This latter result cannot be reduced.
