4: A school has 314 boys & 310 girls. If they are to be grouped into equal classes of 26 each , how many classes will there be?
314 boys + 310 girls = 624
If they are grouped into classes of 26 students each, how many class will there be?
130 students = 5 classes
Therefore
260 students = 10 classes
260 x 2 = 520 = 20 classes
26 x 24 = 624
Number of classes = 24
Question 5).
Jim worked 48 weeks last year. Each week he worked 38 hours. If he worked an additional 240 hours of overtime, how many hours did he work in all?
Solution:
48 weeks
24hrs × 7 = 168hrs
168 x 48 = 8,064
Additional 240hrs
= 168hrs = 7 days (a week)
240hrs - 168 = 72 (3days)
168 + 72
= 240hrs + 8, 064
= 8, 304 hrs
Slope is rise over run, aka change in y divided by change in x:
Answer: -1
$10.50x + $200 = y
X represents the number of hours she works at her regular job
Y represents the total amount of money made over the weekend
For this case we have the following property of the sum:
What we need to know is that the name of this property is:
Identity property of the sum.
What this property establishes is:
Every number added to zero is equal to the same number.
Answer:
the number sentence show:
Identity property of the sum.
