Answer:
A. He has $22 because he spends $2 on snacks each day.
B. He spends $2 a day, in the table we can see it decreases by $2 each day, so he spends $2 every day.
C. Yes because the cost evenly decreases by $2, therefore it is a linear relationship.
D. ?
E. X ÷ Y = Z
X being the money, $22
Y being the days, 6
Z being the leftover money, $8
In this problem, we are given the equations of the two sides
of a rhombus.
Equation 1 is 4 x – 10
Equation 2 is 2 x + 20
Since the given shape is a rhombus, therefore the two sides
have equal sides. Hence, we can simply equate equation 1 and equation 2:
4 x – 10 = 2 x + 20
2 x = 30
x = 15
Therefore the answer is:
A. 15
3:4 is the answer. Look at it like a pattern. 9:12, 3 goes into both of them, 12:15, 3 goes into both of them, 12:16, 4 goes into both of them. However nothing goes into both the numbers in 3:4.
