Vertical angles are congruent (equal), and the angles below are vertical angles.
x + 40 = 3x
40 = 3x - x
2x = 40
<u><em>x = 20</em></u>
Answer:
Step 2: He should have added 3 to, rather than subtracting 3 from, both sides.
Step-by-step explanation:
1. Combine like terms: 6b − 3 = −21
2. Subtraction property of equality: 6b = −24
Here he has to add 3 on both sides, to isolate the variable term.
Therefore, answer is Step2) He should have added 3 to, rather than subtracting 3 from, both sides.
Hope this will helpful.
Thank you.
Answer:
8n = 80
n = 10
Step-by-step explanation:
I did the equation part of the question 8n = 80.
then I answered it which is n = 10
Answer:
630
Step-by-step explanation:
The ratio of students that would like to try or already have tried snorkeling is 7/9.
The ratio of all students is an unknown amount out of 810 total students; this gives us x/810.
This gives us the proportion:
7/9 = x/810
Cross multiplying,
7*810 = 9*x
5670 = 9x
Divide both sides by 9:
5670/9 = 9x/9
630 = x
Answer:
5a. $9.20
5b. 75 clicks
Step-by-step explanation:
You are asked to make use of the given relationship between number of clicks (c) and budget remaining (A).
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<h3>5a</h3>
The number of clicks is given as c = 52, so the budget remaining is ...
A = 30 -0.40(52) . . . . . use c=52
A = 30 -20.8 = 9.20
There will be $9.20 left at the end of the day.
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<h3>5b</h3>
The number of clicks needed to use up the budge can be found by solving for c when A=0.
0 = 30 -0.40c . . . . . use A=0
0.40c = 30 . . . . . . . add 0.40c
c = 30/0.40 = 75 . . . . . divide by 0.40
The ad was clicked 75 times if there is no daily budget remaining.
