The expression means the product of 5 and the difference of three times r minus 10. If r = 4, the value of the expression is
2 answers:
Answer:
the value of the expression is 10
Step-by-step explanation:
The expression means the product of 5 and the difference of three times r minus 10.
'r' represents the variable
three times 'r' is 3r
for minus 10, subtract 10 from 3r
the product of 5 and the difference of three times r minus 10.
Now evaluate the expression when r=4
Plug in 4 for 'r' in the expression we got
10
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Answer: 1/4 full.
Step-by-step explanation:
The question is asking for how much gas will be left in the tank after 2/3 of the gas in the tank is used.
There is currently 3/4 of the tank remaining.
To find 2/3 of 3/4, you can multiply the fractions together.
Do this by multiplying both numerators and both denominators:
Then, subtract 6/12 from 3/4. You can do this by simplifying the first fraction to 2/4 (divide both the numerator and denominator by 3).
3/4 - 2/4 = 1/4
There will be 1/4 of the tank left.