1 year ago

Cross-multiplication is helpful in: a. quadratic equations c. linear equations b. solving proportions d. word problems

Mathematics

2 answers:

Mice21 [21]1 year ago

4 0

Answer:

not what he said

Step-by-step explanation:

Romashka [77]1 year ago

3 0

Answer:

Cross multiplying fractions helps us to see if numbers are equal, and if not, which is bigger and which is smaller. But that is not its only use. Cross multiplying fractions can help us to solve for unknown variables in fractions.

Step-by-step explanation:

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alukav5142 [94]

Answer:

Step-by-step explanation:

I'm pretty sure it is the answer but if it isn't then sorry

7 0

3 years ago

Solve n for the following preportion :<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B3%7D%7B5%7D%20%20%3D%20%20%5Cfrac%7B12%

Gemiola [76]

N=20

3 times 4 is 12. Anything u multiple the top u multiple the bottom. So 5 times 4 is 2

5 0

4 years ago

If sin–¹x +sin–¹y+sin–¹z=π/2, prove that x²+y²+z²+2xyz=1

Slav-nsk [51]

Answer:

Step-by-step explanation:

Points

4 0

3 years ago

Last year, a beauty magazine had a total of 2,650 subscribers. This year, after its parent company made some changes, it had 3,2

lilavasa [31]

Answer:

22%

Step-by-step explanation:

Divide 2,650 by 100:

2,650/100=26.5

Then divide 3233 by the dividend:

122=122%

Now you can see that there is a 22% percent increase over 100%, theefore making our answer 22%.

Have a great day, and mark me brainliest if I am most helpful!

5 0

3 years ago

At sunrise, the temperature was –4.5°C. During the day, the temperature rose 9.7°C and then fell 4.8°C.

ollegr [7]

-4.5 rose 9.7 then fell 4.8

-4.5 + 9.7 = 5.2

5.2 - 4.8 = 0.4

8 0

3 years ago