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Margaret [11]
3 years ago
8

Alexia spent 3 minutes working on each of her math problems and 4 minutes on each of her science problems. Her homework took her

more than 60 minutes to complete. The boundary line for the inequality 3x + 4y > 60 is shown.
Mathematics
2 answers:
mel-nik [20]3 years ago
7 0

Answer:

Its C

Step-by-step explanation:

I just took this assignment. :)

vivado [14]3 years ago
6 0

Answer:

The correct answer to this problem is the third statement which is "Alexia completed 20 math problems and 10 science problem". The following conditions are stated in the problem:

Alexia can answer 3 minutes on each math problem

Alexia can answer 4 minutes on each science problem

She worked more than 60 minutes

We have the inequality 3x + 4y > 60 where x represents the total number of math problem while y represents the total number of the science problem.

in our answer, we have x=20and y=10

3*20 + 4*10 > 60

60 + 40 > 60

100 > 60

brainliest please

Step-by-step explanation:

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Find the complete factorization of the expression. 32xy − 56xyz A) 8xy(4 − 7z) B) −8xy(4 + 7z) C) xy(32 − 56z) D) 8(4xy − 7xyz)
Sav [38]
The answer is A. Greatest common factor is 8xy because of the gcf and wat the equation has in common, xy. Then you are here- 8xy(?-?). Now, you have to find what's in the parenthesis. So, what number multiplied by 8xy gives you 32, you already have your variables, is 4. 8xy(4-?). Then what number multiplied by 8xy gives you -56z? It's -7z. So u r done. 8xy(4-7z).
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Jessica is a custodian at Oracle Arena. She waxes 20 square meters of the floor in 3/5 of an hour. She waxes the floor at a cons
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i think :)
5 0
2 years ago
I need help please !!!!!!!!!!!!!
Lynna [10]
1. b
2. a
3. c
hope that helped!
7 0
3 years ago
Read 2 more answers
Inez is saving money to buy a dress for the homecoming dance. The dress costs $345. She has
Anna007 [38]

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Step-by-step explanation:

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4 years ago
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I will give brainliest to anyone who gives me a correct answer
Pachacha [2.7K]

Answer:

C

Step-by-step explanation:

Let's check the first condition [y=110, t=0] for all the choices and eliminate:

A)

y = 110e^{7t} - 80\\y = 110e^{0} - 80\\y=30

NO

B)

y = 110 - 80e^{-5t}\\y = 110 - 80e^{0}\\y=30

NO

C)

y = 30 + 80e^{-2t}\\y = 30 + 80e^{0}\\y=110

YES

D)

y = 110 - 80e^{2t}\\y = 110 - 80e^{0}\\y=30

NO

E)

y = 30 - 80e^{-4t}\\y = 30 - 80e^{0}\\y=-50

NO

Note: e^0 = 1

Only C is satisfied. But let's make sure the 2nd condition applies as well.

y = 30 + 80e^{-2t}\\y = 30 + 80e^{-\infty}\\y=30+\frac{80}{e^{\infty}}\\y>>30

Hence, y approaches 30 as t goes to infinity. 2nd condition is satisfied as well.

Answer is C

4 0
4 years ago
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