3 years ago

Which number is a solution of the inequality 8 - 1/4 b > 27?

Mathematics

1 answer:

vodomira [7]3 years ago

5 0

Answer:

b< -76

Step-by-step explanation:

8 - 1/4 b > 27 ⇒ add -8 to both sides
-1/4b > 27 - 8
-1/4 b > 19 ⇒ multiply both sides by -4
b < - 4*19 ⇒ change inequality sing to opposite due to multiplication to negative number
b < - 76 ⇒ answer

Answer is any number smaller than -76

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If 4 gal of premium unleaded gasoline costs $15.04, how much would it cost to completely fill a tank whose capacity is 9-gal?

Sveta_85 [38]

Answer:

$33.84 cents

Step-by-step explanation:

Given the following question:

4 gallons = 15.04
1 gallon = ?

How much for 9 gallons?

To find the answer we have to find how much one-gallon costs since we already know how much it costs for 4 gallons of this unleaded gasoline.

$15.04\div4$
$15.04\div4=3.76$
$=3.76$

One gallon of this gasoline costs $3.76 now we need to find how much it costs for 9 gallons.

$3.76\times9=33.84$
$=33.84$

For nine gallons of gasoline it will cost you "$33.84 cents."

Hope this helps.