Answer:
Jeans: 3 T-shirts: 2
Step-by-step explanation:
40 times 3 equals 120
20 times 2 equals 40
120+40=160
Answer:
.37
Step-by-step explanation:
2.99 divided by 8 = .37375 rounded up to your hundredths is .37
Answer:
{12, 16}
Step-by-step explanation:
The difference of two <em>numbers (x and y)</em> is 4. Thus, if y is the larger, then y - x = 4. Also, y = 2x - 8.
So we need to solve the system of linear equations
y - x = 4
y = 2x - 8
Subbing 2x - 8 for y, in the first equation, we get (2x - 8) - x = 4, or
x - 8 = 4, and conclude that x = 12. Then, because y - x = 4, y must be 16.
The numbers are 12 and 16.
Answer: 20
Step-by-step explanation:
f(-4) = -4² - (-4)
f(-4) = 16 + 4
f(-4) = 20
