What is the value of x in the solution to the system of equations? 4x - 2y = 5 y = 3x - 1​

Answers

Answer 1

Answer:

X = 7

Step-by-step explanation:

Please mark brainliest.

Answer 2

Answer:

[tex]\huge\boxed{\sf x = -2}[/tex]

Step-by-step explanation:

4x - 2y = 5 -------------------------------(1)

y = 3x - 1 ----------------------------------(2)

Put Eq. (2) in (1)

4x - 2(3x-1) = 5

4x - 6x + 1 = 5

-2x + 1 = 5

Subtracting 1 to both sides

-2x = 5 - 1

-2x = 4

Dividing both sides by -2

x = 4 / -2

x = -2

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AnonymousHelper1807


Related Questions

What set of transformations could be applied to rectangle ABCD to create A'B'C'D'?

Answers

Answer: C :>

Step-by-step explanation:

Answer:

the answer is number 3

8x+2 factored useing the gcf.

Answers

Answer:2 ( 4 + 1 )

Step-by-step explanation:

Combine the like terms to create an equivalent expression.
5r + 15 - 2r - 5

Answers

3r + 10 is the answer

3x-4 or = to 7


plz help

Answers

Answer:

3 + 4 = 7  which is true.

Step-by-step explanation:

Whenever you have an equation with a plain variable (that is, no exponent included), there is only one number that will work when substituted for x.

To solve it, you have to "undo" what is done to the variable. You also go in the reverse order of operations, so you do the addition/subtract first, then multiplication/division.

You also have to do the same to both sides, kind of like keeping a balance scale in balance.

In this case, we subtract 4 from both sides first:

3x + 4 -4 = 7 - 4

The + 4 - 4 cancel each other out, so you get:

3x = 3

3x means "3 times x" so you divide by 3 to undo it. I will use the / to indicate division:

3x / 3 = 3 /3  

so 1x = 1.

Since 1x is "1 times x" it is the same as x by itself, so:

x=1

AND, if we substitute 1 back into the original equation (the asterisk stands for multiply):

3 * 1 + 4 = 7

3 * 1 is 3, so:

3 + 4 = 7     which is true.

1 is the only number that works.

Hope this helped.

A jar contains 5 blue marbles, 8 red marbles, 4 white marbles, and 3 purple marbles. Suppose you pick a marble at random without looking.

P(purple) =

Answers

Answer:

.15 or 15%

Step-by-step explanation:

5+8+4+3=20

3 purple marbles/20 total marbles= .15

Could some one solve this for me? I’m to dumb

Answers

Answer:

we haul y=.045x+20

you haul y=1x

You want to save $10,000 to buy a new car You doposit 6500in an account earning 7.5% simple interest. After how long will you have enough money
in the account to purchase the car? Round your answer to the nearest whole number

Answers

Answer:

After 7.5 years we will have enough money in the account to purchase the car.      

Step-by-step explanation:

Amount needed to be saved = $10000

Principal = $6500

So, Simple Interest = $3500

Rate of Interest = 7.5%

                         = 0.075

Now, Simple Interest = Principal × Rate × Time

⇒ 3500 = 6500 × 0.075 × Time

⇒ 3500 = 487.5 × Time

⇒ Time = 7.18 years ≈ 7.5 years

Hence, after 7.5 years we will have enough money in the account to purchase the car.

Step-by-step explanation:

Rewrite the following in the form log(c).
log(8) – log(2)

Answers

Answer:

log(c). log(8) - log(2)

Step-by-step explanation:

Question 4 HELPPPPPPPPPPPPP

Answers

The opposite of 4 is -4 :/

Answer:

-4

Step-by-step explanation:

correct have a nice day

Right answer gets brainlist

Answers

B is the answer I think

Will give crown help

Answers

Answer:

4

Step-by-step explanation:

to find the slope, you have to do rise/run.

you rise up from the first dot 4 times,

then you run once.

4/1

so the answer is 4

can someone please help me out with this.​

Answers

this is not a function

how do I find the value of x in a isosceles and equilateral triangle​

Answers

Depends on where the x is. If in the equilateral triangle, x is the only angle missing then you do whatever two numbers they gave + x = 180 then solve.

If it’s in an isosceles and it’s the same situation, you do x = the side with the same amount of degrees (you will know because there will be a line on the “x” and given side

Grace conducted a study to show how many hours her dog sleeps after having one or two hours of exercise. She set up a two-way table in four different ways. Which table will best represent Grace’s data? A 4-column table with 3 rows. Column 1 has entries less-than 6 hours of sleep, 2 hours of exercise, total. Column 2 is labeled greater-than 6 hours of sleep. Column 3 is labeled 1 hour of exercise. Column 4 is labeled total. A 4-column table with 3 rows. Column 1 has entries 1 hour of exercise, greater-than 6 hours of sleep, total. Column 2 is labeled 2 hours of exercise. Column 3 is labeled less-than 6 hours of sleep. Column 4 is labeled total. A 4-column table with 3 rows. Column 1 has entries 2 hour of exercise, greater-than 6 hours of sleep, total. Column 2 is labeled 1 hour of exercise. Column 3 is labeled less-than 6 hours of sleep. Column 4 is labeled total. A 4-column table with 3 rows. Column 1 has entries 1 hour of exercise, 2 hours of exercise, total. Column 2 is labeled greater-than 6 hours of sleep. Column 3 is labeled less-than 6 hours of sleep. Column 4 is labeled total.

Answers

Answer:

The best table to use will b the fourth table.

Because the number of hours of excise is on one side and the number of hours of sleep is on the other. It will be easy to calculate it this way. Hope I was able to help

Step-by-step explanation:

I got it right on edge hope this help

Answer:

The fourth one

Step-by-step explanation:

got it right 2020

8/962365//*(789630)*****789456123=?
solve its for a test !

Answers

The answer for that is probably 7(%7/£122-;298;+92

Answer:

7(%7/£122-;298;+92

Step:-by-st7(%7/£122-;298;+92ep explanation

find the HCF and LCM of 110 and 220 by prime factorisation what do you observe.​

Answers

Answer:

They are both the same numbers- its 110 and 220.

Step-by-step explanation:

GCF=   2 x 5 x 11 = 110

LCM=   2 x 2 x 5 x 11 = 220

5/8x24 how can I show my work solving dat

Answers

Answer:

Check the image below

Step-by-step explanation:

SOMEONE pLZ HELP ME SOLVE THIS IM GETTING so MADDD

Answers

Answer:

Vertex Form: y= 2(x−1)^2−7

Step-by-step explanation:

I believe this is correct

A student has some $5 bills and $10 bills in her wallet for a total of $100. The amount of $10 bills she has is 3 more than 3 times the amount of $5 bills. How many of each type of bills does she have?

Answers

Answer:

she has 6 $5 bills and 4 $10 bills I think I'm not sure

Helllp ASAP!!! I will give you a brainlist

Write the equation that describes the line with slope = 2 and y-intercept = in slope-intercept form.
O x = 2y +3/2
O y = 3\2+2
O y = 2x +3/2
O 2x + y =3/2

Answers

Answer:

y=2x+3/2

Step-by-step explanation:

2x is the slope and 3/2 is the y intercept

Answer:

y=2x+3/2

Step-by-step explanation:

because i said so.

Convert 0.5% to a decimal. 0.005 0.05 5.0 0.5. 35% of 70 is _____. 50 245 24.5. 90 is 50% of what number? 180 120 45. What is the total cost of a pair of jeans that are priced $50.00 if there is 7% sales tax? $57.50 $53.75 $55.50

Answers

Answer:

ayo keen

Step-by-step explanation:

u there?

Complete the Square
x– 6x + 2 = 0
PLEASE ANSWER

Answers

Answer:

somebody will answer for you!

Step-by-step explanation:

Write an equation of the line below.
(0,1) and (8,-1)

Answers

Answer:

Step-by-step explanation:

(-1-1)/(8-0)= -2/8= -1/4

y + 1 = -1/4(x - 8)

y + 1 = -1/4x + 2

y = -1/4x + 1

factor completely 24x^2+16x-30

Answers

Answer:

2(2x+3)(6x-5)

Step-by-step explanation:

2(12x²+8x²-15)

2(12x²+18x-10x-15)

2(6x(2x+3)-5(2x+3))

2(2x+3)(6x-5)

Rewrite the equation to describe 4 as a function of 8:
4x + 8y = 512
Then interpret the slope and y-intercept.​

Answers

Answer:

The steps below show how I transformed the equation in the question into standard form, where the slope and y-intercept is clearest. The slope is -1/2 and the y-intercept is 32.

[tex]4x + 8y = 512 \\ x + 2y = 64 \\ 2y = - x + 64 \\ y = - \frac{1}{2} x + 32[/tex]

Explain when it is appropriate to use a benchmark percent in solving a problem.

Answers

Answer:

The most common benchmark percents are 0%, 10%, 25%, 50%, 75% and 100%.

These benchmark values are sometimes used when estimating a solution involving percentages.

Real-World Example

If an item costs $36.00 and there is a 7% sales tax, the benchmark of 10% can be used to mentally estimate the sales tax of the item.

10% of 36, done mentally, is 3.6.

Since 7% is a bit less than 10%, the sales tax will be a bit less than $3.60.Step-by-step explanation:

Anyone can find “v” and “u”??

Answers

Answer:

[tex]v = \frac{16}{3} \: \: and \: \: u = \frac{20}{3} [/tex]

Step-by-step explanation:

In triangle WYZ ,

[tex] {u}^{2} = {4}^{2} + {v}^{2} = 16 + {v}^{2} [/tex]

In traingle WXZ ,

[tex] {(3 + v)}^{2} = {5}^{2} + {u}^{2} [/tex]

Putting the value of U^2 in above eqn.

[tex] = > {(3 + v)}^{2} = 25 + (16 + {v}^{2} )[/tex]

[tex] = > {v}^{2} + 6v + 9 = 41 + {v}^{2} [/tex]

[tex] = > {v}^{2} - {v}^{2} + 6v = 41 - 9[/tex]

[tex] = > 6v = 32[/tex]

[tex] = > v = \frac{32}{6} = \frac{16}{3} [/tex]

Putting the value of V in eqn. below :-

[tex] {u}^{2} = 16 + { (\frac{16}{3} )}^{2} [/tex]

[tex] = > {u}^{2} = \frac{256}{9} + 16[/tex]

[tex] = > {u}^{2} = \frac{256 + 144}{9} = \frac{400}{9} [/tex]

[tex] = > u = \sqrt{ \frac{400}{9} } = \frac{20}{3} [/tex]

Preston uses 2 cups of nuts for every 3 cups of raisins to make trail mix. How many cups of
nuts will he need if he uses 12 cups of raisins?
9 Cups
8 Cups
10 Cups
5 Cups

Answers

Answer:

I'm pretty sure it's B. 8 cups

25 POINTS and Brainliest

Answers

Answer:$293.83

Step-by-step explanation:

Answer:

293.83$

Step-by-step explanation:

total withdrawals = 6*15.72=94.32$

the rest amount before depostit is 153-94.32=58.68$

the rest amount After depostit is 58.68+235.15=293.83$

write 15% as a fraction step by step

Answers

Answer:

15/100

Step-by-step explanation:

15% is out of 100% so when writing it into a fraction it is 15 over 100, because 15% is out of 100%

Hint:If you want to put it into a decimal it will be 0.15 so when turning it into a fraction, the 1 is in the tenths place and the 5 is in the hundredths place.

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