<span>pennies = 0.01 $
nickels = 0.05 $
dimes = 0.1 $
quarters = 0.25 $
We must write the system of equations that best suits this problem and solve it:
Let:
x = pennies
y = nickels
z = dimes
w = quarters
Writing the equations
0.01x + 0.05y + 0.1z + 0.25w = 3.71
I have twice as many dimes as nickels
z = 2y
two more nickels than quarters
y = w + 2
three fewer pennies than three times the number of nickels
x = 3y-3.
Solving the system of equations:
x = 21
y = 8
z = 16
w = 6
answer
He has
21 pennies
8 nickels
16 dimes
6 quarters
</span>
For 1- 4 all you have to do is multiply the numbers.
An easier way to write the same equation out would be to add multiplication signs. For example:
1. -2*3 is the same as (-2)(3)
When there are two parentheses next to each other without a sign in between, that means multiplication.
6-9 can also all be converted to be a whole number, which is what it want you to do.
11 and 12 is where you need to multiply and then add or subtract after you multiply.
Also, for 13 and 14, both the fractions can be converted to be a whole number, so you should turn them into whole numbers first and your life will be a lot easier.
And 15 is also the same thing as 11 and 12.
Extra Help: When you have two negative numbers, the answer will end being a positive and when there are two positive it will remain a positive, and a negative and positive number will be a negative.
Answer:
A,C
Step-by-step explanation:
A and C are spending money, which make them debits
I have know idea sorry u don’t know this their isn’t any explanation
Answer:
x = 20
Step-by-step explanation:
This is an equilateral triangle since all of the sides are the same.
So each angle has to be 60 degrees since a triangle is 180 degrees total.
3x = 60
60 divided by 3 = 20
So the value of x is 20.
Hope it helped! My answer is expert verified.
