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20 questions
Mr. Mole left his burrow and started digging his way down.
A represents Mr. Mole's altitude relative to the ground (in meters) after t minutes.
A = -2.3t - 7
How far below the ground does Mr. Mole's burrow lie?
-7
-2.3
Rachel is a stunt driver, and she's escaping an exploding building.
D represents the distance remaining as a function of t seconds.
D = -38t + 220
What is Rachel's speed?
38
220
A sumo wrestler needs to gain weight for a match, and has started a diet.
W is his weight (in kilograms) as a function of t for time (in months).
W = 80 + 5.4t
What is his starting weight?
5.4
80
Nicci's sister is 7 years less than twice Nicci's age, a. The sum of Nicci's age and her sister's age is 41. Which equation represents this relationship?
a + (7 - 2a) = 41
a + (2a - 7) = 41
2a - 7 = 41
a = 2a - 7
WRITE AN EQUATION
Aliyah had $24 to spend on seven pencils. After buying them she had $10. How much did each pencil cost?
24-10=7x
24+7x=10
10+7x=24
10+x=14
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