I believe the answer is:
A. 8/9 n-11/3
The amount of money Robert has this week after buying gas is $172.
<h3>Define arithmetic.</h3>
Mathematical arithmetic is the study of the properties of the standard operations on numbers, such as addition, subtraction, multiplication, division, exponentiation, and root extraction. The area of mathematics known as arithmetic deals with the study of numbers and the numerous operations that can be performed on them. Addition, subtraction, multiplication, and division are the fundamental mathematical operations. The symbols shown above stand in for these procedures.
Given Data
Robert usually earns $95 per week for mowing lawns.
Amount = $95
This week, he doubled his normal earnings,
Amount = $95 × 2
Amount = 190
but, spent $18 on gas for his lawnmower.
Amount = $190 - $18
Amount = $172
The amount of money Robert has this week after buying gas is $172.
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Answer:
a) {15}
b) { }
c) D or {5, 7, 8, 12, 13, 15}
d) no
e) yes
Step-by-step explanation:
a) AUB: even or prime
D - (AUB) = {15}
b) AUC: even or odd; basically all integers
D - (AUC) = { }
c) A∩B : even and prime, that's only 2
D - (A∩B) = {5, 7, 8, 12, 13, 15} = D
d) A and B, both contain 2
Not disjoint
e) A and C are disjoint because no number can be both, even and odd
Answer:B
Step-by-step explanation:
<h3>
Answer: B. x = 6</h3>
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Explanation:
Since the vertical lines are parallel, this means the alternate exterior angles shown are congruent.
Set them equal to each other and solve for x.
15(x+2) = 120
15x+30 = 120
15x = 120-30
15x = 90
x = 90/15
x = 6
Or we could have the steps like this
15(x+2) = 120
x+2 = 120/15
x+2 = 8
x = 8-2
x = 6
