1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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)
You might be interested in
Tyler has 45% of his pay check remaining. What fraction of his pay check does he have remaining?
Andreyy89

Answer:

If he has 45% of his cheak remaining we already have the remaining so we just to turn it into a fraction

First we put it over 100

<u>45</u>

100

Then we reduce it to the lowest terms

which would be

9/20

7 0
3 years ago
Read 2 more answers
How to solve step by step -3(2x-3)&lt; 3 ?
likoan [24]
-3(2x-3)<3
(-3(2x-3))(-1)<3(-1)
3(2x-3)>-3
(3(2x-3))/3>-3/3
2x-3>-1
2x-3+3>-1+3
2x>2
2x/2>2/2
x>1

5 0
3 years ago
The blue dot is at what value on the number line?
Paladinen [302]

Answer: 1

Step-by-step explanation: it goes -7 -5 -3 -1 1

8 0
3 years ago
Marcus can choose between a monthly salary of $ 1500 plus 5.5% of sales or $2,400 dollars plus 3% of sales. He expects sales bet
Citrus2011 [14]

He should choose the second option because he will be paid more money, with the percentage he expects.

Hope this helps!

3 0
3 years ago
I can't seem to solve this problem. I have to make an equation to solve this but i don't know how to make an equation for this p
soldier1979 [14.2K]

Well each ladder has 30, and then it depends on how each person climbs their ladder. One climb at the rate of -2 per second. The other climb at the rate of 1 per second. Just x is equal to 1, that's why I didnt put 1x.
Equation: 30 + -2x = 30 + x
7 0
3 years ago
Other questions:
  • Determine whether the point (2, 0) is a solution to the system of equations. Explain your reasoning in complete sentences
    6·2 answers
  • A gardener wants to create a rectangular vegetable garden in a backyard. She wants it to have a total area of 120 square feet, a
    6·1 answer
  • Subtract the sum of -1250 and 1138 from the sum of 1136 and 1272
    13·2 answers
  • A monthly contribution of $200 is deposited into an interest-bearing account.If the account has a 4.8% interest rate and compoun
    13·1 answer
  • CAN SOMEONE HELP ME WITH THIS, PLEASE AND THANK YOU.
    6·2 answers
  • The 1st flat-bar, or cross, or other operator means:<br> -9-(-7)
    15·1 answer
  • Como leer el decimal 0.000000215
    5·1 answer
  • What is the solution to 4+ 2x=4
    5·1 answer
  • For brainily please help
    11·1 answer
  • -<br> What is g(x)= -4(x - 5)2 + 8 in standard form
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!