Answer:
Inside the jar there's 16 nickels and 35 quarters.
Step-by-step explanation:
Since there are only nickels and quarters in the jar, the sum of the number of nickels and the number of quarters inside it must be equal to the total number of coins in the jar. So
nickels + quarters = 51
We know the total value inside the jar, to obtain this value we must multiply the amount of each kind of coin by it's value and sum it. So we have:
0.05*nickels + 0.25*quarters = 9.55
We now have two equations and two variables, so we can solve them as follows:
nickels + quarters = 51
0.05*nickels + 0.25*quarters = 9.55
From the first equation:
nickels = 51 - quarters
0.05*(51 - quarters) + 0.25*quarters = 9.55
2.55 - 0.05*quarters + 0.25*quarters = 9.55
0.2*quarters = 9.55 - 2.55
quarters = 7/0.2 = 35
nickels = 51 - 35 = 16
Inside the jar there's 16 nickels and 35 quarters.
Answer:
7^10
When multiplying exponents keep the number the same and add the power
FOr example in 9^3 x 9^7 we keep 9 the same whilst adding the exponents
9^10 would be the answer for the example problem
Step-by-step explanation:
Answer:
It is the first bubble.
Step-by-step explanation:
multiply the fraction 
multiply the numerators and denominators seperatly
calculate the product
multiply the numbers
solution
Given that a cube has a surface area of 150 square centimeters, then the length of its side is: 150=6l2
Answer:
They are not parallel.
Put the equation in y=mx=b format to compare. The first equation (y=4x-4) is already in the right format.
If m (slope) is the same, then the lines are parallel.
-4y=96-24x
/-4 all sides
y= - 24+ 6x
y=6x-24
y=4x-4
6 is not equal to 4, slopes are not the same. Not parallel.
