Mathematics, 07.05.2020 01:06, kenyatte97
Select the correct text.
Regina's teacher recently gave her a homework assignment on solving equations. Since she has been thinking about saving for a new cell phone,
she decided to use the assignment as an opportunity to model a savings plan.
She created this equation to model the situation. In it, y represents the total amount saved for the new cell phone, 74 is the amount of money
she has now, 40 is the amount of money she saves each month for the phone, and x represents the number of months since she started saving
a regular amount
74 + 40xy
She then solved the equation to determine how many months she'd need to save to have enough to purchase the new cell phone Review her
work, and select the error.
Justification
1: given
2: subtraction property of equality
3: simplification
4: multiplication property of equality
5: simplification
6: substitution, y = 834
7: simplification
Step 1:
Step 2:
Step 3:
Step 4:
Step 5:
Step 6:
74 + 40x=y
74 + 40x-74 = y- 74
40x=y-74
401 - 74
9-74
X= 40
234 - 74
x 40
40
Answers: 2
Mathematics, 22.06.2019 01:30, karsenbeau
Given are five observations for two variables, x and y. xi 1 2 3 4 5 yi 3 7 5 11 14 which of the following is a scatter diagrams accurately represents the data? what does the scatter diagram developed in part (a) indicate about the relationship between the two variables? try to approximate the relationship betwen x and y by drawing a straight line through the data. which of the following is a scatter diagrams accurately represents the data? develop the estimated regression equation by computing the values of b 0 and b 1 using equations (14.6) and (14.7) (to 1 decimal). = + x use the estimated regression equation to predict the value of y when x = 4 (to 1 decimal). =
Answers: 3
Mathematics, 22.06.2019 04:10, 00bebebeauty00
What is the expression equivalent to (3x^2-7)
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Select the correct text.
Regina's teacher recently gave her a homework assignment on solving e...
Regina's teacher recently gave her a homework assignment on solving e...
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