Answer:
3h - 2
Step-by-step explanation:
An expression is a mathematical phrase using variables, such as 'h', and operations, such as addition, subtraction or multiplication. An expression does not include the equal sign (=).
The problem asks you to use the variable 'h' which we can substitute for 'a number' in the verbal description. Also, 'difference' is a word used for the operation of subtraction. 'Times' is a word that we use for the operation of multiplication. So, 'three times a number' = 3h. 'The difference of three times a number and two' = 3h - 2.
Ok, -24+36w=48 (You have to add 24 to both sides because it's a negative!)
+24 +24
----------------------------------- (Then you add!)
36w=72
------------------------------(Then you divide by 36!)
36 36
w=2! Hope it helps! :)
Answer:
means the car uses 1 gallon of gas for every
miles driven.
Step-by-step explanation:
Hey there!
Let's make a linear equation, and we'll plug in our values.
We have:
total = 20 + 2(number of lobsters caught)
We'll have t as total money earned and l as amount of lobsters.
t = 20 + 2l
However, she wants to make 130 dollars in 5 days. We plug in 130 for the total and we multiply the 20 by 5, as that would be her payment in five days excluding the lobsters caught.
130 = 20(5) + 2l
We simplify the right:
130 = 100 + 2l
Subtract 100 from both sides
30 = 2l
Divide both sides by 2
She needs to catch 15 lobsters.
Hope this helps!