5 of 105 of 10 Items
12:09
Question 1
Aniyah goes to the store and spends $22. She spends $9 on paper towels and she buys 2 frozen meals that have the same cost.
PART A
Which of the following sequences of steps can be used to find the cost of each frozen meal?
Responses
A Multiply 9 by 2, then subtract the result from 22Multiply 9 by 2, then subtract the result from 22
B Subtract 9 from 22, then divide by 2Subtract 9 from 22, then divide by 2
C Divide 22 by 2, then subtract 9Divide 22 by 2, then subtract 9
D Subtract 9 from 22, then subtract 2Subtract 9 from 22, then subtract 2
Question 2
PART B
Which of the following shows the algebraic steps used to write and solve an equation to determine the cost of each frozen meal?
Responses
A
2(x+9)=22
2(x+9)2=222
x+9=11
−9=−9
x=2
2 times open paren x plus 9 close paren is equal to 22 the fraction with numerator 2 times open paren x plus 9 close paren and denominator 2 is equal to 22 halves x plus 9 is equal to 11 negative 9 is equal to negative 9 x is equal to 2
B
2x+9=22
2x2+9=222
x+9=11
−9=−9
x=2
2 x plus 9 is equal to 22 2 x over 2 plus 9 is equal to 22 halves x plus 9 is equal to 11 negative 9 is equal to negative 9 x is equal to 2
C
2x+9=22
−9=−9
2x=13
2x2=132
x=6.5
2 x plus 9 is equal to 22 negative 9 is equal to negative 9 2 x is equal to 13 2 x over 2 is equal to 13 halves x is equal to 6 point 5
D
2x+9=22
−9=−9
2x=13
−2=−2
x=11
(write with actual signs)
A) Multiply 9 by 2, then subtract the result from 22
B) 2(x+9)=22
2(x+9)/2=22/2
x+9=11
-9=-9
x=2