3 years ago

Pls help im confused with this

Mathematics

1 answer:

Alexeev081 [22]3 years ago

3 0

Answer:

Im sure its the fourth one.

Step-by-step explanation:

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5x + 2y=7<br> - 2x + 6y=9

ollegr [7]

Answer:

x = $\frac{12}{17}$ or 0.706

$y = \frac{59}{34}$ or 1.735

Step-by-step explanation:

5x + 2y=7 ----->(eq 1)

- 2x + 6y=9 ----->(eq 2)

Multiply (eq 1) with 3

3×(5x + 2y) = 3×7

15x + 6y = 21 ----->(eq 3)

substract (eq 3) from (eq 2)

- 2x + 6y - (15x + 6y) = 9-21

- 2x + 6y - 15x - 6y = 9-21

- 2x - 15x + 6y - 6y = 9-21

-17x = -12

x = -12 ÷ -17

x = $\frac{12}{17}$

put x = $\frac{12}{17}$ in (eq 1)

$5*\frac{12}{17} + 2y = 7$

$2y = 7- 5*\frac{12}{17}$

$2y = \frac{7*17 - 60}{17}$

$2y = \frac{119- 60}{17}$

$2y = \frac{59}{17}$

$y = \frac{59}{17*2}$

$y = \frac{59}{34}$

6 0

3 years ago

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Morgarella [4.7K]

Answer:

The third option: Account A balance is linear. Account B balance is nonlinear. Account B will have a greater balance in Year 3.

Step-by-step explanation:

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3 years ago

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What is the value of h when the function is converted to vertex form?

Rudik [331]

The Vertex Form is $y=(x+5)^2+10$
So $h=5$

Hope this helps!!

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3 years ago

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rylee buys some apples at the store. She gives 5 apples to her neighbor and eats half of what she has left as snacks for the wee

bulgar [2K]

Answer:

Step-by-step explanation:

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3 years ago

Find the quotient: –10/19÷(−5/7)

Semmy [17]

Answer:

14/19

Step-by-step explanation:

Note that there are two " - " signs here. Thus, the end result will be " + "

We move from left to right, obtaining first 10/19 divided by (5/7):

----- ÷ (5/7)

To divide by (5/7), invert (5/7) and then multiply. We get:

10 7 2(7)

----- * ----- = ------- = 14/19

19 5 19

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3 years ago