Answer:129
Step-by-step explanation:
630/5 is 126. Add 126, two numbers below it, and two above it. So, 124+125+126+127+128=630. The next page is 129
Answer:
11.7
Step-by-step explanation:
Answer:
148°
Step-by-step explanation:
x = 180 - 32 = 148°
(Supplementary angles)
<u>Answer:</u>
x + y ≥ 26 + 15
5x + 8y ≥ 250 (see below)
Step-by-step explanation:
First, write an equation to represent the total cost to wash cars:
$5x = cost for cars
Then, write another for trucks:
$8y = cost for trucks
If the question is saying that they will wash at least 26 cars and 15 trucks, that means they could wash more. This means that we'll need an inequality:
This inequality represents that the total number of cars and trucks they wash will be at least—which means that it is equal to or greater than—than the amount given:
x + y ≥ 26 + 15
Any equation or inequality with two unknowns is not solvable, meaning we need a system of equations:
If they make at least $250, that means that we need to combine the costs of the cars and trucks to make an inequality:
5x + 8y ≥ 250
Now you have your system of equations:
x + y ≥ 26 + 15
5x + 8y ≥ 250
Answer:
E
Step-by-step explanation:
.03(50) + 0x = (50-x).05 How much 3% salt much be added to zero percent salt to create a mixture that is 5 percent salt.
3(50) = (50 - x)5 I multiplied through by 100 to clear the decimals
150 = 250 - 5x Distribute the 5
-100 = -5x Subtract 100 from both sides of the equation
20 = x divide both sides by -5
