Answer:
(-4, -2)
Step-by-step explanation:
To find if a point is a solution (or verifies) an inequation (or an equation), you simply have to enter the given values in it and see if it's true.
Let's try with all the 4 given choices:
(-4, -2)
y + x < -5
-4 - 2 < -5
-6 < -5 TRUE
(-3, -2)
y + x < -5
-3 - 2 < -5
-5 < -5 FALSE
(-2, -3)
-2 - 3 < -5
-5 < -5 FALSE
(-1, -3)
-1 - 3 < -5
-4 < -5 FALSE
Answer:
C
Step-by-step explanation:
Answer: her increase is 1.245 dollars an hour
Step-by-step explanation:
It’s -0.5 because it an integer has to be whole number hope this helps :)
Answer:
8 one-dollar bills
3 five-dollar bills
2 ten-dollar bills
Step-by-step explanation:
Let x = # of one-dollar bills, y = # of five-dollar bills, and z = # of ten-dollar bills. Total amount in the wallet is $43, so the first equation would be 1x + 5y + 10z = 43. Next, there are 4 times as many one-dollar bills as ten-dollar bills, so x = 4z. There are 13 bills in total, so x + y + z = 13
x + 5y + 10z = 43
x = 4z
x + y + z = 13
x + 5y + 10z = 43
x + 0y - 4z = 0
x + y + z = 13
5y + 14z = 43
-y - 5z = -13
5y + 14z = 43
-5y - 25z = -65
-11z = -22
z = 2
x = 4z
x = 4*2 = 8
x + y + z = 13
8 + y + 2 = 13
10 + y = 13
y = 3
