Example
Mia babysits some children after school. For each child, she
charges x + 2 dollars pe...
Mathematics, 19.02.2021 16:30 xojade
Example
Mia babysits some children after school. For each child, she
charges x + 2 dollars per hour. One day she cared for 2
children for 3 hours each. She paid 54 per child for materials
for activities. Two students wrote expressions for the amount
of money Mia earned. Are their expressions equivalent?
Paolo wrote the expression 3(x + 2) + 3(x + 2) - 8.
Carla wrote the expression (3x + 6) - 4+ (3x + 6) - 4.
Simplify the expressions to see whether they are equivalent.
Paolo's Expression Carla's Expression
3(x + 2) + 3x + 2) - 8 (3x + 6) - 4+ (3x + 6) - 4
- 3x + 6 + 3x + 6-8 3x + 3x + 6 + 6 - 4 - 4
6x + 4
= 6x + 4
The expressions are equivalent.
Why did Paolo add 3(x + 2) to itself and subtract 8?
Answers: 1
Mathematics, 21.06.2019 16:10
Pls! does anybody know a shortcut for answering these types of questions in the future?
Answers: 3
Mathematics, 21.06.2019 16:20
Which mathematical statements are true? 1) if 3 is an odd number, then 3 times 3 is an even number. 2) if 6 is less than 7, then 4 is greater than 7. 3) six is divisible by 3, and 10 is a multiple of 2. 4) the average of the data is greater than the largest value in the data, or it’s less than the largest value in the data. 5) the slope of a linear graph is its rate of change, and the graph’s y-intercept is the initial value. 6) if an equilateral triangle has equal angles, then all its angles will measure 45°.
Answers: 3
Mathematics, 21.06.2019 19:40
Graph y = -|x| + 2. click on the graph until the correct one appears.
Answers: 3
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