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Vesna [10]
3 years ago
8

Which of the following proportions is false?

Mathematics
1 answer:
Lunna [17]3 years ago
8 0
Hey friend in order to figure that out, we need to solve all of these proportions.
Lets start with A!
What you first want to do is cross multiply so...
10 * 100 = 25 * 40
Simplify
1000 = 25 * 40
1000 = 1000
Add -1000 to both sides
1000 - 1000 = 1000 - 1000
0 = 0. (This proportion is true)
Moving on to B
Same steps!
18 * 50 = 48 * 20
900 = 48 * 20
900 = 960 (This is false therefore B is our answer however we want to check the others as well)
C is...
25 * 135 = 45 * 75
3375 = 45 * 75
3375 = 3375
3375 - 3375 = 3375 - 3375
0 = 0 (True)
D is....
24 * 25 = 30 * 20
600 = 30 * 20
600 = 600
600 - 600 = 600 - 600
0 = 0 (True)
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By subtracting 46 from 108
4 0
4 years ago
Simplify (write without the absolute value sign):<br> 120+x, if x &lt;- 120
Alexeev081 [22]

Answer: - x - 120

Explanation: You want to find the opposite of (120-x) not just x, so you just put the negative symbol next to both the variables.

8 0
4 years ago
8g-14g+22=37 what does g equal
Sphinxa [80]
If you would like to solve the equation 8 * g - 14 * g + 22 = 37 for g, you can calculate this using the following steps:

8 * g - 14 * g + 22 = 37
- 6 * g = 37 - 22
- 6 * g = 15   /(-6)
g = 15 / (-6)
g = - 15 / 6
g = - 5 / 2 = - 2.5

Result: g equals to - 5/2.
5 0
4 years ago
Read 2 more answers
Having trouble with this question.<br><br> It is not B or C
Law Incorporation [45]

Answer:

D

Step-by-step explanation:

If we look at the options and we pay attention to D,

Lets work this out Step By Step:

Part 1:

5/4(-2) = -2.5

-2.5 - 3 = -5.5 (Correct)

Part 2:

5/4(4) = 5

5 - 3 = 2 (Correct)

Both of these rows are correct.

Hope this helps!

:)

3 0
3 years ago
Write and evaluate an expression for: Music lessons cost $20 a week. How much do 6 weeks of lessons cost?
givi [52]

Answer:

$120 dollars.

Step-by-step explanation:

7 0
3 years ago
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