Answer:
- yes
- no
Step-by-step explanation:
When a number of similar calculations are required, a spreadsheet can reduce the tedium.
1. The price is a constant $1.88 per pound, so is proportional to the weight.
_____
2. The price is not proportional to the number of toppings.
__
The cost of the pizza is $8.99 plus $1.50 per topping. The base cost being non-zero ensures that the overall cost is not proportional to the number of toppings.
There are 1000 mL in a Liter and 60 seconds in a minute
18 L / min = 18,000 mL /min
so in mL/s the answer is 18000 / 60 = 300 mL/s Answer
Answer:
Daryl = 9, Malik = 3, Terrance = 14
Step-by-step explanation:
We can use letters to represent each brother's name, so
D + M + T = 26
3M = D
D + 5 = T
then we can plug in the 3M in the third problem for D
3M + 5 = T
Then we can go back to the first problem and plug in 3M and (3M + 5)
3M + M + (3M + 5) = 26
4M + (3M + 5) = 26
7M = 21
M = 3
plug 3 in for M in the second equation:
3 x 3 = D
D=9
Then go back to the first equation:
9 + 3 + T = 26
12 + T = 26
T = 14
So T = 14
D = 9
and M = 3
50-6x=y
since each car wash is 6 dollars and you do not know the number of cars washed it is 6x
50-6x is because you need to find out how much is left in the card so you subtract the total from how much she spent
