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klemol [59]
3 years ago
9

HELP ASAP

Mathematics
1 answer:
Pavlova-9 [17]3 years ago
4 0

Answer:

b. 4

Step-by-step explanation:

{2m - n = −14

{−m + 3n = 17

⅓[−m + 3n = 17]

{2m - n = −14

{−⅓m + n = 5⅔

____________

1⅔m = −8⅓

____ ____

1⅔ 1⅔

m = −5 [Plug this back into both equations above to get the n-value of 4]; 4 = m

Therefore, our n-value is 4.

I am joyous to assist you anytime.

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Find the absolute value of 6/8
saul85 [17]

Answer:

0.75

Step-by-step explanation:

6 / 8 =

0.75

7 0
3 years ago
Mr. Bennett owns 4 restaurants. The mean number of tables is 30. Which number line shows what could happen to the mean if he buy
expeople1 [14]
Number of tables al four restaurants have;
= 4 * 30
=120 tables
Two new restaurants + 4
=6 restaurants
(120+15+9)= 144 tables
Mean = total # of tables/ total # of restaurants;
144/6
=24
This is the mean so it decreases. I hope this helps even though you didn’t actually post the number line
7 0
4 years ago
Read 2 more answers
Two straight edges of a pizza slice meet at an angle of 30°. If the pizza has a radius of 12
melisa1 [442]

Answer:

<h3>area of the slice:      A = 12π in² ≈ 37.7 in² </h3><h3>lenght of its crust:  L = 24π in ≈ 6.28 in</h3>

Step-by-step explanation:

R = 12 in

360°:30° = 12

so the area of the slice is ¹/₁₂ of whole pizza

A = ¹/₁₂•πR² = ¹/₁₂•π•12•12 = 12π in² ≈ 37.7 in²

Crust is the perimeter of pizza so crust of the slice is ¹/₁₂ of the perimeter:

L = ¹/₁₂•2πR = ¹/₁₂•2π•12 = 2π in ≈ 6.28 in

8 0
3 years ago
What is the answer to 57-9 108-7=
viktelen [127]
I think your answer will be 53
I hope this helps.
7 0
3 years ago
Seth has just decided to replace his computer. His old computer cost him $1,433 when he bought it exactly seven years ago. Seth
puteri [66]

Answer:

The answer is D

Step-by-step explanation:

The solution would be like this for this specific problem:

Cost of the computer:

i = 0.117 / 12 

i = 0.00975 

= monthly payment 

= (i * P * (1 + i)^n) / ((1 + i)^n - 1) 

= (0.00975 * $1433 * (1 + 0.00975)^30) / ((1 + 0.00975)^30 - 1) 

= $55.32 

Electricity cost:

= $0.79 * 365.25 * 7 

= $2019.83 

Electricity Percentage: 

= $2019.83 / ($2019.83 + $1659.60) 

= 54.89% 

Electricity: 

= ($0.79 * 365 * 5) + ($0.79 * 366 * 2) 

= $2020.03 

 

Electricity Percentage: 

= $2020.03 / ($2020.03 + $1659.60) 

= 54.898%

In total, the electricity made up 54.898% of the lifetime cost of the computer.

3 0
3 years ago
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