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Simora [160]
3 years ago
8

Solve 7x+4y=8 for y. help please

Mathematics
1 answer:
adelina 88 [10]3 years ago
6 0
I think it is : Y=2-7x/4
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Solve the system of equations by substitution x+y=18, y=5x
Artyom0805 [142]

Answer:

(3, 15 )

Step-by-step explanation:

Given the 2 equations

x + y = 18 → (1)

y = 5x → (2)

Substitute y = 5x into (1)

x + 5x = 18

6x = 18 ( divide both sides by 6 )

x = 3

Substitute x = 3 into (2) for corresponding value of y

y = 5(3) = 15

Solution is (3, 15 )

4 0
4 years ago
Read 2 more answers
What’s the answer to this
Luba_88 [7]

Answer:

B

Step-by-step explanation:

Take f(x) and plug into g(x)

(2x+1)+14 = 2x+15

4 0
4 years ago
Find the mean, median, mode, and range of this data: 49, 49, 54, 55, 52, 49, 55. If necessary, round to the nearest tenth.
4vir4ik [10]
The answer is A.

Hope I helped.
6 0
3 years ago
Read 2 more answers
Need help with this question
andreev551 [17]

Answer:

Order from least degree to highest degree

15xy - 89y², 7x³ + 5y, 2x³y + 5x²

Step-by-step explanation:

For polynomials, the degree a polynomial has can be defined as the highest number of power a variable in that polynomial carries.

From the above question, we are asked to arrange this polynomials from least to highest

Hence:

7x³ + 5y , -2x³y + 5x², 15xy - 89y²

Order from least degree to highest degree

15xy - 89y², 7x³ + 5y, 2x³y + 5x²

3 0
3 years ago
Ethanhunt help please :D:D:D:D
kirill115 [55]
A) In 1st Figure, Blue boxes means unit of diet soda = 8
Green boxed is regular sods = 4

Total Boxes = 12
Value of 1 Box = 888/12 = 74 

Now, We know, we have 74 soda in each box, and 8 boxes of diet soda, so the number of diet soda = 74 * 8 = 592

In short, Your Answer would be: 592

B.) Now, In 2nd figure, You can see
Red boxes mean Short sleeve short which is = 3
Green means Long sleeve = 7

Total Boxes = 10
Value of 1 Box = 460/10 = 46

Now, we know we have 46 shirts in each boxes and their is 3 boxes of short sleeves.
So, Number of Short sleeves = 46 * 3 = 138

In short, Your Answer would be: 138

Hope this helps!

6 0
4 years ago
Read 2 more answers
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