All categories

3 years ago

Solve -2x+3y=-9 4x-6y=2

Mathematics

1 answer:

mr Goodwill [35]3 years ago

7 0

Step-by-step explanation:

Given,

-2x + 3y = -9 ------- (eqⁿ 1)

4x - 6y = 2 ----------- (eqⁿ 2 )

now,

multiply eqⁿ 1 by 2

so we got,

-4x + 6y = -18 -------- (eqⁿ 3)

now,

subtract eqⁿ 2 from eqⁿ 3

we got,

-8x = -16

x = -16/-8

x = 2,

so , after putting values in the eqⁿ 2

we got,

4(2) - 6y = 2

8 - 6y = 2

6y = 2 - 8 = 6

y = 6/6

y = 1

x = 2 and y = 1

hope this answer helps you dear...take care!

You might be interested in

On Monday the store is having a sale and all the school supplies are 1/2 off,how much money would you save if u shop on Monday

Blababa [14]

Since everything is half off, you save half of your money or %50.

3 0

2 years ago

2,99,790,000 in scientific notation

ludmilkaskok [199]

So we have 299790000, we want to have only one digit in front of the decimal, 2.9979x10^9

hope this helps :)

3 0

3 years ago

A class has 35 students, of which 16 are male and 19 are female. If 6 of the students are selected at random to form a committee

madreJ [45]

Answer:

The probability of choosing exactly 2 male and 4 female students = $\frac{\binom{16}{2}\times \binom{19}{4}}{\binom{35}{6}}$

Step-by-step explanation:

We are given that a class has 35 students

Number of male=16

Number of female=19

We have to choose 6 students for committee

We have to find the probability that exactly 2 male students are selected

Probability=P(E)= $\frac{number\;of\;favorable\;cases}{total\;number\;of\;cases}$

If we have to choose total 6 student in which 2 male and 4 female

Combination formula:

$nC_r=\frac{n!}{r!(n-r)!}$

Using the formula

The probability of choosing exactly 2 male and 4 female students = $\frac{\binom{16}{2}\times \binom{19}{4}}{\binom{35}{6}}$

5 0

2 years ago

How to write 12,375,003 in expanded form

icang [17]

Twelve million threehundred and seventy five thousand ans three

6 0

3 years ago

Brainliest for my sister, black badger cat! noone else

san4es73 [151]

Answer:

HIIIIIIIIIIIIIIIIIIII!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Step-by-step explanation:

3 0

2 years ago