2 years ago

7th grade math question, awarding brainliest! 80 POINTS!!!

Mathematics

1 answer:

aivan3 [116]2 years ago

5 0

Answer:

first one

9. x-4

12. is one. 6 is another proportion now u can compare them

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Help I will mark brain list!!!!!

dangina [55]

Answer: I'm not sure exactly how you want this answered.

Step-by-step explanation:

Just by simplifying the expression, I got $\frac{a^{2}xy }{2} +a^{3}x-\frac{3x^{2} y}{5} -ay^{2}$

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3 years ago

(only subject im bad at) What is the Least Common Denominator (LCD) of 7/8 and 1/6 ?

Marizza181 [45]

24 because 8 times 3 is 24 and 6 times 4 is 24. It is the smallest number both can be multiplied by a number to get 24.

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3 years ago

A waiter at a restaurant automatically earns a certain percent tip on each bill. On a $45 dinner, the waiter makes $9 in tips. W

Oduvanchick [21]

Answer:

$45 dinner = $9

$1 dinner = 45/9= 5

$60 dinner = 60/5=12

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3 years ago

April worked 1 1/2 times as long on her math project as Carl. For how many hours did April work on her math project?

natima [27]

Answer: 7 7/8 hours long

Step-by-step explanation:

April worked 1 1/2 times as long as Carl did. 1 1/2 can be rewritten as 3/2. Number of Hours April worked on math project 3/2 times the Number of Hours Carl worked on Math project. Which Carl worked 5 1/4 hours long, which can be rewritten as 21/4

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2 years ago

F(x) = 3x + 4 + 2 g(x) = 4 Find (f + g)(x).

Andre45 [30]

Answer:

Step-by-step explanation:

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2 years ago