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antoniya [11.8K]
3 years ago
10

I need help on the math question!

Mathematics
1 answer:
TEA [102]3 years ago
6 0

Answer:

  3 and 7

Step-by-step explanation:

You know from your multiplication tables that ...

  21 = 1×21 = 3×7

There are no other factorizations of 21 using integers. You may notice that the sums of these factors are ...

  1+21 = 22

  3+7 = 10 . . . . . . this is the pair of numbers you are looking for

The two numbers are 3 and 7.

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Is there anyone who could solve this? Thanks
Rina8888 [55]

Answer:      

a=3r6-b,-3r6-b

Sorry I couldn't figure out how to find B

Step-by-step explanation:


6 0
4 years ago
The table shows a proportional relationship between the milliliters (ml) of red paint and milliliters of yellow
Alinara [238K]

Answer:

You didn't provide answer options. The correct answer option will be the one where the ratio of red paint to yellow paint is 3:8.

Step-by-step explanation:

To make orange, you need some amount of red and some amount of yellow. As long as you mix them in the same proportions, you will get the same orange colour, regardless of how much total paint you're using. It's the RATIO between colours that matter, not how much colour is used.

In this case we are told that to make orange you can use any of the following combinations:

10.5mL red / 28mL yellow

9mL red / 24mL yellow

7.5mL red / 20mL yellow

Just take any of these and convert into a fraction. The middle option is easiest because it uses whole numbers:

\frac{9}{24} = \frac{3}{8}

This means for every 3 units of red, you need 8 units of yellow. Whichever answer option has red and yellow in that ratio is the correct answer.

5 0
3 years ago
Why does the fact family for 81 and 9 only have two number sentences?
Genrish500 [490]
One fact family is 9 times 9 = 81
3 0
4 years ago
I really need help for this question (Part B), I would appreciate any help thank you.
Sergeeva-Olga [200]

Answer: Sorry I am not sure  about it

I do know how to dxo this but this one is hard for me sorry 56456

Step-by-step explanation:

5 0
3 years ago
You are playing a game in which a single die is rolled. If a 2 or a 5 comes up, you win $36, otherwise, you lose $30. What is yo
mafiozo [28]
$-12



In rolling a single die, there are 6 possible outcomes. To win, there are two possible outcome making the probability equal to 2/6. Moreover to loss, there are 4 possible outcomes, making the probability equal to 4/6.Calculating the cost,
(2/6)($36) - (4/6)($36) = -12
Thus, the expected value of the game is $-12.
3 0
1 year ago
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