3 years ago

PLEASE HELP

Mathematics

1 answer:

Alex_Xolod [135]3 years ago

4 0

(-1, 0) is a x-intercept graphed

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7(3x -4) = 49 can you help me

kotykmax [81]

Answer:

3 2/3

Step-by-step explanation:

7(3x-4)=49

21x-28=49

21x=77

x=3 2/3

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3 years ago

5x + 2y=7 - 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)

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

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

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

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

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

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

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

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3 years ago

Free points: this is because of all the kindness I have seen on brainly:

VashaNatasha [74]

The answer is 35450 :)

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All the applicants chose at least one of the three countries Egypt, Ghana and South Africa. A total of 2417 applicants chose Egy

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Answer:

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Step-by-step explanation:

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3 years ago

Write an equation to describe the relationship in each table.

GuDViN [60]

Answer:

First table: 2x+1=y

Second table: 3x+2=y

Step-by-step explanation:

It was really just testing it out, checking to see if an equation worked for one row, then try in the next. Its hard to explain, but its really just guess and check ;D

I hope this helps!

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3 years ago

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