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Reptile [31]
3 years ago
7

Please help this is also very urgent

Mathematics
2 answers:
igor_vitrenko [27]3 years ago
5 0
I think The answer is c
11111nata11111 [884]3 years ago
5 0
What you need to do is make them all into fractions and divide top by bottom i think! Sorry if I’m wrong
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Answer correclty PLZZZ
ioda

Answer: option C is the correct answer

Step-by-step explanation:

The system of linear equations is

10x + 7y = 12 - - - - - - - 1

8x + 7y = 18 - - - - - - - 2

Since the coefficient of y is the same in equation 1 and equation 2, we will eliminate y by subtracting equation 2 from equation 1, it becomes

10x - 8x + 7y - 7y = 12 - 18

2x = -6

x = - 6/2 = - 3

Substituting x = - 3 into equation 1, it becomes

10×-3 + 7y = 12

-30 + 7y = 12

Let the constants be on the right hand side and the term containing y be on the left hand side. It becomes

7y = 12 + 30

7y = 42

y = 42/7

y = 6

C) (−3, 6)

6 0
3 years ago
Read 2 more answers
On Monday a company stock closed at a price of $30.80 per share. On Tuesday it increased by $1.20 per share. On Wednesday it fel
aleksley [76]
Tuesday:
30.80 + 1.20 = 32.00

Falling by 6.25% means it ends up being 93.75% of what it used to be (100% - 6.25% = 93.75%)

Wednesday:
32.00 * 0.9375 = 30

Thursday:
30 * 0.96 = 28.8

Friday:
28.8 * 1.025 = 29.52

Net change means you subtract to get the difference.

Net change = Final - initial
= 29.52 - 30.80
= -1.28

The stock fell $1.28
3 0
3 years ago
Read 2 more answers
Find the volume of a cone with a base diameter of 6yd and a height of 10yd .
Sophie [7]
About 94.24778. The radius is 3.
3 0
3 years ago
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Find each percent of change. Round to the nearest whole percent if necessary. State whether the percent of change is an increase
Sati [7]

Answer:

Percent of Change: 30% (rounded) It is an increase

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
2. What is gross income? What types of income are included in gross income?
gogolik [260]
Gross income is all a persons receipts and gains from all sources before any deductions.
8 0
3 years ago
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