All categories

3 years ago

Eliminating by multiplying X+3y=1 -5x+4y=-24

Mathematics

1 answer:

gavmur [86]3 years ago

3 0

Answer:

y = -1 x = 4

Step-by-step explanation:

(X+3y=1) 5 Multiply this equation by 5 to cancel out the x

-5x+4y=-24

-5x + 4y= -24

+ 5x + 15y = 5 Add both equations together

19y = -19 Divide both sides by 19

y = -1

Plug -1 for y into one of the equations

x + 3(-1) = 1 Multiply 3(-1)

x - 3 = 1

+ 3 + 3 Add 3 to both sides

x = 4

If this answer is correct, please make me Brainliest!

You might be interested in

Solve 3^(4x+5)=(1/3)^(x+10) for x. Please show work

Naya [18.7K]

Answer:

Step-by-step explanation:

$3^{4x+5}=(\frac{1}{3} )^{x+10}=\frac{1}{3^{x+10}} =3^{-x-10}\\so~4x+5=-x-10\\4x+x=-10-5\\5x=-15\\x=-3$

4 0

3 years ago

I will give brainliest if applicable

insens350 [35]

Answer:

The average is exactly 26,375 gallons of gas per hour.

How I found this is buy subtracting each numbers like 422,000 - 369,250 = 52,750. 369,250 - 316,500 = 52, 750 and so on. They all ended up being 52,750, but then I realized that they are all 2 hours apart and the question asks of gallons of gas per 1 hour so then I divided 52,750 in half and got my final answer, 26,375.

Step-by-step explanation:

This is how much gas the jet uses per 1 hour

my question doesn't ask me to create a linear model but it asks for gasoline per hour, and it's just like this question with the same graph so if you have the same as me this is the answer.

8 0

2 years ago

HELPPPPP PLEASEEEEEE !!!!!!!A recipe requires x number of cups of flour to produce y number of servings.

Makovka662 [10]

Looking at 1 1/2 makes 12 cups, you can divide them to see the total of cups it would make with one cup of flower. 1 1/2 is equal to 1.5 , and with that information we do 12 divided by 1.5 which is 8. the answer is 8 per 1 cup of flower.

8 0

3 years ago

Read 2 more answers

arah is keeping up with how many miles her car gets per gallon. She starts with a full tank. After 448 miles, she fills up with

baherus [9]

Since a coordinate is written as (x,y) then the x-value is 14 and the y-value is 448. Therefore, the answer is 448. Hope I helped!

5 0

3 years ago

Liliana asked her friend how many siblings they each have. Using the data plot, how many of the students have three or more sibl

Alchen [17]

Answer:

11 students