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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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If you can buy 1⁄3 of a box of chocolates for 6 dollars, how much can you purchase for 4 dollars?
alukav5142 [94]

Answer:

2/9 boxes.

Step-by-step explanation:

6 / 1 / 3 = 4 / b

Cross multiply the two

6b = 4/3

Multiply 1/6 on each side

B = 4 /18

It can be reduced to 2/9.

Feel free to let me know if you need more help! :)

5 0
3 years ago
Which expression is equivalent to 12/7 + 15
Katen [24]
To solve this just put a 1 over the 15. So it would be 12/7 + 15/1 which is 16 5/7.
3 0
3 years ago
0.02x0.7 what is the answer? How do you do it?
SashulF [63]
0.02 times 0.7 = 0.014 all u needed to do was 2 times 7 and add two zeros
5 0
3 years ago
PLEASE ANSWER ASAPPP THANK YOU!!
Citrus2011 [14]

Answer:

i think is (2,5)

Step-by-step explanation:

becasue thats the vertex of that point

6 0
2 years ago
Please help!! It’s a very simple question..
Svetradugi [14.3K]

Answer: The answer is -4

Step-by-step explanation:−40=12x+8

Step 1: Flip the equation.

12x+8=−40

Step 2: Subtract 8 from both sides.

12x+8−8=−40−8

12x=−48

Step 3: Divide both sides by 12.

12x

12

=

−48

12

x=−4

Answer:

x=−4

4 0
3 years ago
Read 2 more answers
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