Answer:
Chiara has 2 penny coins and 24 nickel coins
Step-by-step explanation:
Let
p ----> the number of penny coins
n ---> the number of nickel coins
Remember that
Chiara has 26 coins that equal 34 cents
so
isolate the variable x
----> equation A
34 cents=$0.34
Multiply by 100 both sides
isolate the variable x
-----> equation B
Create a table to guess
assume different values of n and determine the value of p in equation A and equation B
The solution is when the value of p in the equation A must be equal to the value of p in equation B
1) For n=1
equation A
equation B
2) For n=2
equation A
equation B
therefore
The solution is (2,24)
Chiara has 2 penny coins and 24 nickel coins
Answer:
75
Step-by-step explanation:
If 75% of the students like skating, that means 35% of the students don't like skating.
35% of the students corresponds to 35 students that do not like skating.
Then to find the number of students who like skating we use the following logical computation,
35% represents 35 people then how much does 75% represent
⇒
=
Therefore,
The number of students who like skating was 75.
Answer:
No because equations have equal signs
Step-by-step explanation:
This is an expression
3c = 24 fl oz
Think it this way:
Big to small, multiply all
Small to big, divide the pig.
1c = 8 fl oz
3 x 8 = 24
Answer: Store B
Step-by-step explanation:
180 / 3 = 60. 180 - 60= $120. Store A cost is $120.
110 * 0.9 = $99. Store B's cost is $99.
