Question

GIVING BRANLIEST!!!!!! 1O POINTS Tiffany is taking a 42-question test worth 100 points. The test includes two-point and four-point questions. How many of each type of question are on the test?
Which equations represent the scenario, where t represents the number of two-point questions and f represents the number of four-point questions? Check all that apply.
t + f = 42
t + f = 100
2t + 4f = 42
2t + 4f = 100
4t + 2f = 100

Answer 1

Answer:

2t + 4f = 100

t+f =42

Step-by-step explanation:

t= two point questions

f =four point questions

2t + 4f = 100

t+f =42

there are 34  two point questions and 8 four point questions

to solve multiply the second equation by -2

-2t -2f = -84

add this to 2t +4f = 100

2t + 4f = 100

-2t -2f = -84

-----------------------

2f = 16

divide by 2

f = 8

there are 8 four point questions

t+f=42

t+8 = 42

subtract 8

t = 34

there are 34 2 point questions

Answer 2

Answer:

2t + 4f = 100

t+f =42

Step-by-step explanation: