Algebra 1 >
E.4 Multi-step problems with unit conversions EHV
Bridget is building a model volcano for the science fair. To find the right ratio, she starts by
mixing small amounts of baking soda and vinegar. She finds that adding 1.5 teaspoons of
baking soda for every fluid ounce of vinegar produces the best eruption. If Bridget plans to
use 0.5 cups of vinegar for her project, how many tablespoons of baking soda should she
use?
Hint: There are 3 teaspoons in 1 tablespoon. There are 8 fluid ounces in 1 cup.
Write your answer as a whole number, decimal, or simplified fraction. Do not round.
tablespoons
Submit
Work it out

27 + 13x + 15 = (x + 5)( =

step-by-step explanation:

27 + 13x + 15 = (x + 5)( = 27 + 13x + 15 = (x + 5)( = 27 + 13x + 15 = (x + 5)( =

55.44 inches

step-by-step explanation:

part a. assuming a perfectly linear relationship, we can find the slope from the first two data points.

slope = m = (change in rainfall)/(change in years)

= (61.80 -62.33)/(2005 -2004) = -0.53/1 = -0.53

then the point-slope form of the equation of the line can be written as

y = m(x -h) +k . . . . . m = -0.53, (h, k) = (0, 62.33)

y = -0.53x +62.33 . . . x = years after 2004

part b. in 2017, x = 2017 -2004 = 13. then the predicted rainfall is

y = -0.53·13 +62.33 = 55.44 . . inches

the predicted rainfall in 2017 is 55.44 in.