Linear Word Problems Day 1

Linear Word Problems Day 1

Multiple Choice

Given

 $W=\frac{V^2t}{R}$  , which expression could be used to represent t in terms of W,R, and V? 

•  $\frac{WR}{V^2}$  

•  $\frac{W}{RV^2}$  

•  $\frac{W}{R}-V^2$  

•  $WR-V^2$  

Multiple Choice

If the formula for the perimeter of a rectangle is  $P=2l\ +\ 2\ w,$  then w can be expressed as

•  $w=\frac{2l-p}{2}$  

•  $w=\frac{p-2l}{2}$  

•  $w=\frac{p-l}{2}$  

•  $w=\frac{P-2w}{2l}$  

Multiple Choice

 An electrician needs to know that the relationship between Amps, Volts, and Resistance is expressed in the formula V=IR, where V is Volts, I is amps, and R is ohms.  How large of a Resistance is needed to produce 8 amps from 184 Volts?  

•  $230$   Ohms 

•  $\frac{1}{23}$ Ohms

•  $23$   Ohms

•  $1472$   Ohms 

Aim: To set up and solve linear equations that model real w

Multiple Choice

The sum of three times a number and 2 less than 4 times the same number is 15. Which of the following equations could be used to find the value of the number, n?

• $3n+4n-2=15$

• $4n+3\left(n-2\right)=15$

• $3n+4\left(n-2\right)=15$

• $3n-4\left(n-2\right)=15$