# Week 4 Algebra questions

*label*Mathematics

*timer*Asked: Feb 5th, 2019

*account_balance_wallet*$5

### Question Description

*Determine whether each equation has the given ordered pair as a solution.*

*3q-2p=-8;(1,-2)*

*question 2 *

*fuel cost involved in idling your car engine for 5 minutes per day when the cost of gasoline is $3.75 per gallon using the formula c = 19a – 4 where c is the cost and a is the size of the engine in liters. Determine the size of the engine in your car and find the cost of idling your car engine for 5 minutes per day*

## Tutor Answer

Attached is the complete work. Feel free to ask for any question or clarification...

Surname1

Name

Course

Professor

February 5, 2019

Week 4 Discussion 4

Question 1

3q-2p = -8; (1,-2)

Arranging them into the form of y=mx+c

3q=2p-8

Substituting:

3(-2) =2(1)-8

-6= 2-8

-6= -6

Therefore the point is a solution of the equation

Surname2

Question 2

Cost of gasoline= $3.75

Formula: c= 19a-4

c= cost

a= size of engine

substituting:

3.75= 19a-4

3.75+4= 19a

a= 7.75/19

a= 0.41

If 3.75 is the number of gallons consumed in a day, what about 5 minutes?

1 day= 1440 minutes

Therefore: (3.75/1440) x 15

= 0.04 gallons

Cost= 0.04x...

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