We Heart Word Problems! (4/10)

The temperature of a substance was recorded over several minutes, as shown in the graph below. The graph displays the linear relationship between the temperature (measured in degrees Celsius) and the number of minutes the substance was being observed.

What statement best describes the y-intercept of the graph?

• The temperature rose 1.25 degrees per minute

• The initial temperature of the substance was 2 degrees

• The maximum temperature was 12 degrees

• The temperature was measured for 8 minutes

Tags

CCSS.HSF.LE.B.5

You can estimate the temperature by counting the number of chirps of the snowy tree cricket. The outdoor temperature is about 40 degrees (Fahrenheit), more than one-fourth the number of chirps the cricket makes in one minute. Formulate a function f(c) that can be used to estimate the temperature by the number of chirps.

Tags

CCSS.HSF-BF.A.1A

An Uber driver charges $0.50 per mile and an initial fee of $3. A Lyft driver charges $0.60 per mile and an initial fee of $2. Which inequality represents the situation where the cost of using Lyft is greater than taken an Uber, where m is miles?

• 0.50m + 0.60m > 3 + 2

• 0.50m + 2 < 0.60m + 3

• 0.50m + 3 < 0.60m + 2

• 0.50m + 3 > 0.60m+2

Tags

CCSS.7.EE.B.4B

The expression s² is the area of a square, where s is the side length of the square. What does the expression (6x)² represent?

• The area of a square with a side length of 6

• The area of a square with a side length of 12

• The area of a square with a side length of 3x

• The area of a square with a side length of 6x

Tags

CCSS.8.EE.A.2

• all real numbers

Two dozen Pre-School friends decide to launch a new social media platform with just their group as the initial set of members on the platform. The number of members for this social media platform increases at a rate of 7.5% each week. Which equation can be used to find the number of weeks, x, after launching that it takes the platform to grow to 1000 members?

Tags

CCSS.HSF.LE.B.5