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wariber [46]
3 years ago
8

How do I simplify this expression using like terms? 3x+9x

Mathematics
1 answer:
sesenic [268]3 years ago
4 0
It would be 12x because 9x and 3x are like terms :)
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"Nick can complete 15 homework assignments in 3 hours."
Vladimir [108]

Answer:

1) 30

2) 40

Step-by-step explanation:

1) Nick will have finished 30 assignments in 6 hours because he can complete 5 assignments per hour and 6*5= 30.

2) Nick will have finished 40 assignments in 8 hours because he can complete 5 assignments per hour and 8*5= 40.

hope this helps!!

3 0
3 years ago
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The sum of three guys ages is 62. Angelo is two years younger than Aaron and Alfred is four years older than twice Aaron's age.
marishachu [46]

Answer: Angelo is 13 years old.

Aaron is 15 years old

Alfred is 34 years old

Step-by-step explanation:

Let x represent the age of Angelo.

Let y represent the age of Aaron.

Let z represent the age of Alfred

The sum of three guys ages is 62. It means that

x + y + z = 62 - - - - - - - - - - -1

Angelo is two years younger than Aaron. It means that

x = y - 2

Alfred is four years older than twice Aaron's age. It means that

z = 2y + 4

Substituting x = y - 2 and z = 2y + 4 into equation 1, it becomes

y - 2 + y + 2y + 4 = 62

4y + 2 = 62

4y = 62 - 2 = 60

y = 60/4 = 15

x = y - 2 = 15 - 2

x = 13

z = 2y + 4 = 2 × 15 + 4

z = 34

6 0
3 years ago
A plane loses altitude at the rate of 5 m/s it begins with an altitude of 85,000 m write a linear function that represents the s
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Y=5/60=85000. that should be it ithink
7 0
3 years ago
Using the 45o −45o −90o Triangle theorem.<br><br>Solve this triangle.​
AlexFokin [52]
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3 years ago
At mayas house they gave out candy to trick-or-treaters
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whats the rest of the question

Step-by-step explanation:

7 0
3 years ago
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