Write the situation as a simultaneous eqution:
x+y=87
10x+5y=545
Now solve for y by multiplying the whole of the first equation by the coefficient of x:
10x+10y=870
10x+5y=545
5y=325
y=65 nickels in the box
x+y=87
x=22 dimes in the box
To prove this is correct, we do (10 x 22)+(5 x 65)=545 cents ($5.45)
Answer:
c I had the same worksheet
Step-by-step explanation:
Answer:
the part of mathematics in which letters and other general symbols are used to represent numbers and quantities in formulae and equations.
Step-by-step explanation:
Answer:
slope=3
y intercept=4
Step-by-step explanation:
i did this using the equation y=mx+b m being slope and b being y intercept
Answer:
33%
Step-by-step explanation:
sorry my bad i did percentage increase.
