All categories

2 years ago

Solution of 4x-7y=-1

Mathematics

1 answer:

givi [52]2 years ago

8 0

Answer:

There are an infinite number of solutions to this equation. One of which would be (-2, -1)

Step-by-step explanation:

In order to find any solution, start by picking a value for x. For the purpose of this exercise, we'll select -2. Now input that in for x and solve for y. The resulting ordered pair is a solution.

4x - 7y = -1

4(-2) - 7y = -1

-8 - 7y = -1

-7y = 7

y = -1

You might be interested in

Please help!! Please give step by step so i can understand

miss Akunina [59]

Answer:

p = - 14

Step-by-step explanation:

Using the rules of exponents

$a^{m}$ ÷ $a^{n}$ = $a^{(m-n)}$

$(a^{m}) ^{n}$ = $a^{mn}$

Note 81 = 9² and 729 = 9³

Given

$(81)^{-4}$ ÷ $(729)^{2-p}$

= $(9^{2}) ^{-4}$ ÷ $(9^{3}) ^{2-p}$

= $9^{-8}$ ÷ $9^{6-3p}$

= $9^{-8-(6-3p)}$

= $9^{-8-6+3p}$

= $9^{3p-14}$

Thus

$9^{3p-14}$ = $9^{4p}$

Since bases on both sides are equal then equate the exponents

4p = 3p - 14 ( subtract 3p from both sides )

p = - 14

6 0

2 years ago

Please answer!!!!!!!!!!!!!!!!!

laiz [17]

The answer is B, the green is f(x)=x^2 and the red one is g(x)=f(2x).

4 0

2 years ago

Refer to table 28-6. what is the u-2 measure of labor underutilization?

mafiozo [28]

Bvgdgmhmgjm,jh,,,,,,,,,,,,,,,,,

4 0

3 years ago

Need help ASAP!!!!!!!!!!

Marysya12 [62]

Answer:

the last two

Step-by-step explanation:

8 0

2 years ago

Jamie takes at random a counter from the bag and records the colour. Red : blue : green = 1:3:7 Jamie does this a number of time

Sonbull [250]

Answer: There are 249 times Jamie takes a counter from the bag.

Explanation:

Since we have given that

Ratio of colour of red to blue to green is 1:3:7.

Number of blue counters = 68

Let the total number of times Jamie does from the bag be x.

So, According to question,

$\frac{3}{11}\times x=68\\\\x=\frac{11}{3}\times 68\\\\x=249.33\\\\=249\ approx.$

Hence, there are 249 times Jamie takes a counter from the bag.

8 0

2 years ago

Solution of 4x-7y=-1​

Solution of 4x-7y=-1