Answer:
3
Step-by-step explanation:
Answer:
x - y = -9
3x + 3y = 8
Step-by-step explanation:
Let the first number be x
Let the second number be y
Equation 1:
x - y = -9
Equation 2:
3x + 2y = 8
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Answer:
she colored in 60% of the paper blue and left 40% of the paper blank
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don’t contain variable.
Answer: x = -2
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Answer:
22608cm³
Step-by-step explanation:
Step 1
We find how many liters of water can be contained in 1 cup. We do this by finding the volume of the cup.
Cup is shaped as a cone
The volume of a cone = πr²h/3
Where
r = radius = 4cm
h = height = 9cm
π = 3.14
Hence,
Volume of the cone (cup) =
3.14 × 4² × 9/3
= 150.72 cm³
Step 1
How much water is needed to fill 150 cups?
1 cup = 150.72 cm³ of water
150 cups = x
Cross Multiply
x = 150 × 150.72 cm³
x = 22608 cm³ of water
Therefore, 22608cm³ of water is needed to fill 150 cups