C(12/15) because the other 3 all equal 0.666666666666667 but 12/15 equals 0.8
Divide 253 by 20 to get the unit rate.
We get 12.65
So our unit rate is; $12.65 per hour
Answer:
Y=4/3x-2
Step-by-step explanation:
Slope is 4/3
1. “ at this age , my baby will not cry because we are leaving.”
Answer:176 psychology textbooks and 98 Biology textbooks were sold.
Step-by-step explanation:
Let x represent the number of psychology textbooks that were sold.
Let y represent the number of biology textbooks that were sold.
textbook store sold a combined total of 274 psychology and biology textbooks in a week. This means that
x + y = 274 - - - - - - - - - - -1
The number of psychology textbooks sold was 78 more than the number of biology textbooks sold. This means that
x = y + 78
Substituting x = y + 78 into equation 1, it becomes
y + 78 + y = 274
2y = 274 - 78
2y = 196
y = 98
x = y + 78 = 98 + 78
x = 176
