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03.09.2020 •
Mathematics
Please help, solve for x and n
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Ответ:
1.
2.
Step-by-step explanation:
1.
Do cross multiplication
Distribute 3 through the parentheses
Move 3x to left hand side and change it's sign
Collect like terms
Divide both sides by 3
Calculate
The value of x is 1
---------------------------------------------------------------------
2.
Do cross multiplication
Distribute 2 through the parentheses
Similarly, distribute 6 through the parentheses
Move 12n to left hand side and change it's sign
Similarly, move 48 to right hand side and change it's sign
Collect like terms
Add the numbers : 48 and 2
Divide both sides by -10
Calculate
The value of n is -5 .
Hope I helped!
Best regards! :D
Ответ:
A. 1/8
Step-by-step explanation:
The probability of getting a red gumball is 10/20 or 1/2. The probability of getting a green gumball is 5/20 or 1/4. If Matthew wants to get a red then green, you have to multiply both the probabilities together. This will make it 1/2 times 1/4. This will be equal to 1/8. Therefore, the answer is A.
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