All categories

3 years ago

Substitute the expression for y into x-2y=1 and solve the equation for x. X=

Mathematics

2 answers:

Nikitich [7]3 years ago

6 0

Answer:

I'm not sure to help you but I can help you out a bit.

Since x - 2y = 1,

x = 1+ 2y

This is expressing x in terms of y.

In addition,

2y = x - 1

y = (x-1)/2

This is expressing y in terms of x.

Vanyuwa [196]3 years ago

3 0

Answer:

make your question clear

You might be interested in

Pls help it is khan academy :)

Whitepunk [10]

Answer:

4x-12

Step-by-step explanation:

8 0

3 years ago

Pleasee help(GIVING BRAINILEST) Tyra's family is spending the afternoon in Millersville. They plan to see a movie and then explo

Cloud [144]

Answer:

1.) 4x + 36 < 60

2.) The family must spend less than 6 hours in Millersville watching the movie.

Step-by-step explanation:

1.) In order to write an inequality to represent the situation, we need to consider all variables. The main resultant / dependent variable is the money spent. The independent variable is the time.

Let x = time and y = money spent.

y = mx + b

Since the entrance fee for the movie is $36, we know that the b = 36. Since the rate of change is $4, you know that m = 4. Lastly, since the maximum amount of money the family has is $60, y = 60.

60 = 4x + 36

Finally, since the money spent must always be LESS THAN 60, 4x + 36 < 60

2.) Soling the Inequality:

Firstly, isolate the 4x by subtracting 36 from both sides.

4x + 36 -36 < 60 - 36

4x < 24

Next, divide both side by 4 in order to isolate x. Since 4 is positive, DO NOT flip the less than

4x/4 < 24/4

x < 6

Since x represents the time, time < 6 hours, meaning that the family must spend less than 6 hours in Millersville watching the movie.

3 0

3 years ago

Read 2 more answers

Can someone plz help me

dangina [55]

Answer:

4j+24k

Step-by-step explanation:

Expand by distributing terms.

4j+4\times 6k

4j+4×6k

2 Simplify 4\times 6k4×6k to 24k24k.

4j+24k

3 0

3 years ago

(a) The marked price of a Jacket at a dealer's shop is Rs.2400. The dealer alle

Alexxx [7]

Answer:

SP is 2400

Final price with 10% VAT is 2640

The actual gain of retailer is 360

Step-by-step explanation:

Given

Marked price of a jacket at dealer shop is 2400

The dealer alle discount of 15% to the retailer

The marked price of the retailer should be the same as dealer's marked price.

The SP should rate for the jacket without VAT 2400

Final price if 10% VAT is imposed

10% VAT on jacket price 2400 is x

$x=\frac{2400}{10}$

$x=240$

The the final price including 10% VAT = 2400 + 240

Final price with 10% VAT = 2640

Actual gain of retailer

Given, The dealer alle discount of 15% to the retailer

So, The retailer gain profit is 15% on jacket price 2400

Therefore

Let x be the gain of retailer

$x=\frac{15}{100}\times2400\\x=15\times24\\x=360$

So, The actual gain of the retailer is 360

The SP should rate for the jacket without VAT 2400

Final price with 10% VAT = 2640

The actual gain of the retailer is 360

8 0

3 years ago

How to do geometry proofs for slow students?

Likurg_2 [28]

Knowing how to write two-column geometry proofs provides a solid basis for working with theorems. Practicing these strategies will help you write geometry proofs easily in no time:

Make a game plan. Try to figure out how to get from the givens to the prove conclusion with a plain English, commonsense argument before you worry about how to write the formal, two-column proof.

Look up how to do geometry proofs and the first thing that should pop up if your on google should be a site called dummies.com

7 0

3 years ago

Substitute the expression for y into x-2y=1 and solve the equation for x. X=​

Substitute the expression for y into x-2y=1 and solve the equation for x. X=