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2 years ago

7x-2y-1= The x=3 The y is= 4

Mathematics

1 answer:

Damm [24]2 years ago

7 0

Answer:

=12

Step-by-step explanation:

You just plug in the variables

7x-2y-1

7(3)-2(4)-1

simplify the expression

solve

which will give you 12

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Looking for the answer to this

SashulF [63]

<h2>Required Answer :-</h2>

Given system of linear equations are ,

x + y = 2
-3x + y = 2

And we need to find the Solution of the linear equation . So let's Firstly number the equations .

$\large{\red{\frak{ Given}}}\begin{cases} \sf x + y = 2\qquad ..........(i) \\\\\sf -3x + y = 2 \qquad ..........(ii) \\\end{cases}$

→ Multiplying equⁿ (i) by 3 ,

=> 3 ( x + y ) = 2*3

=> 3x + 3y = 6

→ Adding the two equations ,

=> 3x + 3y -3y + y = 6 + 2

=> 4y = 8

=> y = 8/4

=> y = 2

→ Put y = 2 in (i) ,

=> x + y = 2

=> x + 2 = 2

=> x = 2- 2

=> x = 0

<h3>★ Hence the required solution is ( 0 , 2 ) .</h3>

7 0

3 years ago

Estimate 92.49 - 63.854 by first rounding each number to the nearest whole number.

san4es73 [151]

92.49 -63.854 ≈ 92 -64 = 28

____
Actual difference is 28.636.

8 0

3 years ago

A florist puts together a bouquet of roses for an order and picks 5 roses randomly from a bucket with red and white roses. Of th

irga5000 [103]

Answer:

35/45 or 7/9

Step-by-step explanation:

3 0

3 years ago

A bank loans a customer $100,000 for a period of 2 years. The simple interest rate of the loan is 5.7%. What is the total amount

fomenos

Answer:

$111400

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 5.7%/100 = 0.057 per year,

then, solving our equation

I = 100000 × 0.057 × 2 = 11400

I = $ 11,400.00

The simple interest accumulated

on a principal of $ 100,000.00

at a rate of 5.7% per year

for 2 years is $ 11,400.00.

5 0

3 years ago

HELP PLEASE ANSWER 7

ololo11 [35]

Answer:

f(x) = 7

Step-by-step explanation:

we use the bottom equation (4x+3) because

1 > 0

4(1) +3 = 7

7 0

3 years ago