Driving to grandparent's house: 140/56 = 2.5 h
return: 140 / 50 = 2.8 h
2.5 h + 2.8 h = 5.3 h
answer is d. 5.3 h (last choice)
Answer:
4-Cups
3-Plates
Step-by-step explanation:
4x6 = 24
3x8 = 24
The answer is all of the students are members of the frequent visitor program.
Let x be the number of students that are members of the frequent visitor program.
Let y be the number of students that are not members of the frequent visitor program.
There are in total 19 students: x + y = 19
x students will pay $11, y students will pay $13 for the ticket. Totally, it will be $209: 11x + 13y = 209
Now, we have the system of two equations:
x + y = 19
11x + 13y = 209
____________
Use the method of substitution:
x + y = 19
⇒ x = 19 - y
____________
11(19-y) + 13y = 209
11·19 - 11·y + 13y = 209
209 - 11y + 13y = 209
____________
Rearange:
13y - 11y = 209 - 209
2y = 0
⇒ y = 0
Since y = 0, x = 19:
x + y = 19
x + 0 = 19
x = 19
This means that all of the students in the group are members of the frequent visitor program.
Answer:
42
Step-by-step explanation:
22/7 × d = 132
d = 132 : 22/7
d = 132 × 7/22
d = 6× 7
d = 42
Answer:
C
Step-by-step explanation:
Try using a scratch piece of paper to graph the points of each table to see which one would have a negative slope. Or use the formula y1-y2/x2-x1 to find the slope and see which one is negative.