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Sever21 [200]
2 years ago
12

Please help!! I’m failing math and I have no idea what the answer is and if I don’t do my hw and keep failing I might have to re

peat the grade! please let me know if you know the answer <3. I provided a photo! but I’ll but it here too
question⬇️⬇️

which expression is equivalent to 5(4x + 3) - 3x

A) 18x + 15

B) 18x + 3

C) 7x + 8

D) 2x + 8

Mathematics
1 answer:
kirill [66]2 years ago
4 0

Answer:

A: 18x+15

Step-by-step explanation:

5(4x+3)-2x

Distribute the 5

20x +15 - 2x

Combine like terms

20x-2x +15

18x +15

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There's a strong negative association between the two variables.


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3 years ago
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at a basketball game the home team scores 60% of the points. The home team scores 45 points. How many points are scored in all?
OverLord2011 [107]

Answer:

75 points

Step-by-step explanation:

45÷60%×100%=75 points in total

3 0
2 years ago
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Mason has a collection of .49 stamps, .20 stamps and .3 stamps worth 23.55. He has 56 total .49 and .20 stamps and the number of
Nezavi [6.7K]

Answer: Mason has 40 forty-nine cent stamps, 16 twenty cent stamps and 25 three cent stamps

Step-by-step explanation:

Let x represent the number of 49 cent stamps that Mason has.

Let y represent the number of 20 cent stamps that Mason has.

Let z represent the number of 3 cent stamps that Mason has.

Mason has a collection of 49 cent stamps, 20 cent stamps, and 3 cent stamps worth $23.55. This means that

0.49x + 0.2y + 0.03z = 23.55 - - - - -1

He had 56 total 49 cent and 20 cent stamps. This means that

x + y = 56

x = 56 - y

The number of 3 cent stamps is nine more than the number of 20 cent stamps. This means that

z = y + 9

Substituting x = 56 - y and z = y + 9 into equation 1, it becomes

0.49(56 - y) + 0.2y + 0.03(y + 9) = 23.55

27.44 - 0.49y + 0.2y + 0.03y + 0.27 = 23.55

27.44 + 0.27 - 0.49y + 0.2y + 0.03y = 23.44

27.71 - 0.26y = 23.55

- 0.26y = 23.55 - 27.71

- 0.26y = - 4.16

y = - 4.16/ - 0.26y

y = 16

x = 56 - y = 56 - 16

x = 40

z = y + 9 = 16 + 9

z = 25

7 0
3 years ago
Whats -0.25 as a fraction
jonny [76]
-0.25 would be -25/100 which can be reduced to -1/4
3 0
3 years ago
A. imagine that you are one of the people who left the luncheon with a contagious disease and interacted with an average of 9 di
shusha [124]

1.       In line with the test each person who came into interaction with the infected person will become infected also. With this information, the calculation would be: 9 people each day for 7days would be equivalent to 9 x 7 which equals 63 people.

2.       Here were 7 other people in the experiment if patient zero is left out. If each person intermingled with 6 different people every day in 7 days then the calculation would be: 7 people infected x 6 new people = 42 infected people each day

42 new people every day x 7 days = 294 infected persons.

8 0
3 years ago
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