Answer:
96 bags of popcorn and 48 pretzels
Step-by-step explanation:
Let
x ----> the number of bags of popcorn sold
y ----> the number of pretzels sold
we know that
2.50x+2y=336 ----> equation A
x=2y ---> equation B
Solve the system by substitution
Substitute equation B in equation A and solve for y
2.50(2y)+2y=336
5y+2y=336
7y=336
y=48 pretzels
Find the value of x
x=2(48)=96 bags of popcorn
Answer:
15.2 people/km²
Step-by-step explanation:
Divide the number of people by the number of square kilometres.
45.6/3 = 15.2 people/km²
Answer:
4(x+3)-10+6x
4x+12-10+6x
10x+2
hope this helps
have a good day :)
Step-by-step explanation:
We need to solve for x. Let's try problem b:
Let us first combine line terms. 3x and -x as well as 1 and -7 can be combined. Let's do that:
Since this is true, your answer would be:
All real numbers
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Let's solve for problem c:
Let's isolate x, so subtract 1 from both sides:
Since x can't have a coefficient, divide both sides by 3:
So, only the value of 14 would make this equation true.
------------------------------------------------------------------
Let's try problem d:
Let's get our whole numbers on the right side. Add 1 to both sides:
Subtract 4x from the right side on both sides:
Since this is not true, your answer would be:
No solution
Answer: Choice A
The volume expression is 4/3 times pi times (3x)^3
===================================================
The volume of a sphere is found through the formula
V = (4/3)*pi*r^3
so we start with the fraction 4/3, multiply it with pi, and then multiply it with r^3
In this case, the radius is r = 3x because this is half of the diameter d = 6x
We simply replace the r with 3x in that formula above
V = (4/3)*pi*r^3
V = (4/3)*pi*( r )^3
V = (4/3)*pi*(3x)^3 ... replace r with 3x
