<span>X= math problems
y= science problems
x +y =42
x= y+10
Substitute: (y+10) + y =42
Combine y: 2y +10=42
Solve for y: y= 16
There are 16 science questions and 26 math questions</span>
Answer:
20
Step-by-step explanation:
The rectangle is 2 x 8.
2 + 2 + 8 + 8
Answer:
38,400 bacteria
Step-by-step explanation:
Because there are 24 hours in a day, it will double 4 times
2400times 2 equals 4800 (1st)
4800 times 2 equals 9600 (2nd)
9600 times 2 equals 19200 (3rd)
19200 times 2 equals 38400 (4th)
Answer:
3053.63 cm^3
Step-by-step explanation:
Volumme of a sphere = 
We do not have the radius of the sphere, but we have its diameter.
We know that there is a relationship between radius and diameter.

Then the formula of the volume of a sphere according to its diameter is:

Answer:
$0.25
Step-by-step explanation:
Divide the cost by the amount.

Therefore, the cost of each chocolate bar is $0.25.