Mario is x years old. In 7 years, he will be 19. Which equation can be used to determine Mario’s present age?(1 point)
Responses
x + 19 = 7
x plus 19 equals 7
x + 7 = 19
x plus 7 equals 19
x − 7 = 19
x minus 7 equals 19
x − 19 = 7
x - 7 = 19
Maria has to spend 512 hours to finish her community service program in a community health clinic. Last week, she was able to spend 334 hours. Which equation can be used to determine the number of hours, h , that Maria still needs to spend to complete her service program?(1 point)
Responses
h − 512 = 334
h minus 5 and one-half equals 3 and three-fourths
h + 512 = 334
h plus 5 and one-half equals 3 and three-fourths
h − 334 = 512
h minus 3 and three-fourths equals 5 and one-half
h + 334 = 512
h + 334 = 512
You have p dollars in your piggy bank. You spent $13.32 to buy a toy, leaving you with $25.70. Which equation should be used to determine the amount of money you had in your piggy bank before buying the toy? How much money was in the piggy bank?(1 point)
Responses
p + 13.32 = 25.70; there was $12.38 in the piggy bank.
p plus 13.32 equals 25.70 ; there was $12.38 in the piggy bank.
p − 25.70 = 13.32; there was $12.38 in the piggy bank.
p minus 25.70 equals 13.32 ; there was $12.38 in the piggy bank.
p + 25.70 = 13.32; there was –$12.38 in the piggy bank.
p plus 25.70 equals 13.32 ; there was –$12.38 in the piggy bank.
p − 13.32 = 25.70; ; there was $39.02 in the piggy bank.
p - 13.32 = 25.70; there was $39.02 in the piggy bank.
Krista and Alexa played balloon darts in a school fair. Krista popped 5 balloons and Alexa popped n balloons. Together, they popped a total of 13 balloons. Which equation can be used to determine the number of balloons Alexa popped? How many balloons did she pop?(1 point)
Responses
n + 13 = 5; Alexa popped 8 balloons.
n plus 13 equals 5 ; Alexa popped 8 balloons.
n − 5 = 13; Alexa popped 18 balloons.
n minus 5 equals 13 ; Alexa popped 18 balloons.
n + 5 = 13; Alexa popped 8 balloons.
n plus 5 equals 13 ; Alexa popped 8 balloons.
n − 13 = 5; Alexa popped 18 balloons.
n + 5 = 13; Alexa popped 8 balloons.
Due to excessive heat, the water level in a dam decreased by 8.8 meters last month. Now, the water level is 95.3 meters. Which equation represents the water level, w , of the dam last month? What was the water level last month?(1 point)
Responses
w + 95.3 = 8.8; the water level of the dam last month was 104.1 meters.
w plus 95.3 equals 8.8 ; the water level of the dam last month was 104.1 meters.
w + 8.8 = 95.3; the water level of the dam last month was 86.5 meters.
w plus 8.8 equals 95.3 ; the water level of the dam last month was 86.5 meters.
w − 8.8 = 95.3; the water level of the dam last month was 104.1 meters.
w minus 8.8 equals 95.3 ; the water level of the dam last month was 104.1 meters.
w − 95.3 = 8.8; the water level of the dam last month was 86.5 meters.