Tinuity MS Grade 8 Pre-Algebra Qtr. 4 (SY19-20) UPDATED
EMEF
Calculating an Interpolated Data Prediction
Chester used the regression equation of the weight loss plan to make a prediction within the given data range.
Complete his work to calculate the number of weekly hours of aerobic activity needed for a monthly weight loss of 3
pounds. Round to the nearest hundredth.
1. Regression equation: y = 1.178x + 0.71
2. Substitute 3 fory:
3 = 1.178x+0.71
3. Subtract 0.71 from both sides: 2.29= 1.178x
2.29 1.178
4. Divide both sides by 1.178: 1178 = 1178*
About
hours of weekly aerobic activity will result in 3 pounds of monthly weight loss.

Due to bad planning, two of the local schools have their annual plays on the same weekend. while 457 people attend one, and 372 attend the other, only 104 people were able to attend both. how many people went to at least one play?

Need this at the city museum, child admission is 6 and adult admission is 9.20. on tuesday, 132 tickets were sold for a total sales of 961.60. how many adult tickets were sold that day?

Nthe opening scene of the movie raiders of the lost ark, indiana jones replaces a golden statue with a bag of sand. the platform on which the statue is placed is designed to detect the mass of the statue. if the bag of sand has a different mass than the statue, then a mechanism triggers and destruction ensues. the density of gold is about 20\text{ g/cm}^320 g/cm 3 20, space, g, slash, c, m, start superscript, 3, end superscript. the density of sand can be estimated at 2.5\text{ g/cm}^32.5 g/cm 3 2, point, 5, space, g, slash, c, m, start superscript, 3, end superscript. the gold statue can be modeled as a cylinder with height 25\text{ cm}25 cm25, space, c, m and radius 8\text{ cm}8 cm8, space, c, m. in terms of \piπpi, what is the mass of sand indiana jones needs to avoid triggering the mechanism?