2x-9x+17=-4
I have a answer but I’m not sure if I’m correct so I just want to double check.

Answers

Answer 1

Answer: x = 3

Step-by-step explanation: Simplify both sides

2x - 9x + 17 = -4

2x + - 9x + 17 = -4

Combine like terms

(2x + -9x) (17) = -4

-7x + 17 = -4

Subtract 17 from both sides

-7x + 17 - 17 = -4 - 17

-7x = -21

Divide both sides by -7

-7x/-7 = -21/-7

x = 3

Answer 2

Answer:

x=3

Step-by-step explanation:

subtract 2x and 9x ( 2x-9x= -7x)subtract 17 and -4 ( -4 -17= -21)divide -21 and -7 ( -21 / -7= -3)x=3

Related Questions

wendy already spent $10 on a necklace, and each additional charm is priced at $2 each. write a function that shows the relationship between the number of charms purchased, x and the total cost, f( x)

Answers

Answer:

f(x) = 2x + 10

Step-by-step explanation:

The amount of charms represents x, or the variable. The price of the charm is represented by 2, or the slope. The necklace is the constant, represented by 10.


DIG DEEPER At a restaurant, when a customer buys 4 pretzels, the fifth pretzel is free. Soft pretzels cost $3.90 each. You order 12
soft pretzels. What is your mean cost per pretzel?
The mean cost is $
per pretzel.

Answers

3.25$ per pretzel. Buying 12 pretzels gets you two free pretzels which is 7.80$ worth of pretzels. 3.90x12= $46.80
46.80-7.80= $39.00
39/12= 3.25 per pretzel

I need some help please...

Answers

Answer:

option 3: 2x²+22xy

Step-by-step explanation:

perimeter of an rectangle = 2(l+b)

= 2{(3x²+5xy)+(6xy–2x²)

= 2(x² +11xy)

= 2x²+22xy

PLEASEEE HURRYYY -WILL MARK BRAINLIEST
please solve for both X and Y I will mark u BRAINLIEST if you do it fastttt​

Answers

Answer:

Y=112  x=45

Step-by-step explanation:

y+68=180

so 180-68=112

y=112

y+(4x-2)+30=180

112+(4x-2)+30=180

140+4x=180

-140 to both sides

4x=180

divide by 4 to both sides

x=45

Perimeter is a measure of the distance around a figure. If each side of a triangle measures 0.75 inches, what is the perimeter of the triangle?

Answers

Answer:

The perimeter of a triangle is the sum of all its three sides.

So,

0.75+0.75+0.75 = 2.25inches

YOU WILL GET BRAINLIES, LIKE AND COMMENT AND 10 POINTS IF YOU CAN PLEASE HELP ME BECAUSE NO ONE IS ANSWEING!

1- A kite has a width to length ratio of 4:5. If the length is 80 cm, what is the width? *
2- Which bottle of juice is the better buy? *
$1.00 for 150 mL
$1.75 for 500 mL
$4.00 for 1000 mL
$7.25 for 2000mL

3- Maya works in a clothing store and earns a commission of 3% on all her sales. If she sells $950 worth of clothing, what is her commission? *
$285
$138.50
$30
$28.50

3- A box of pancake mix suggests using 250 mL of milk and 325 mL of pancake mix. Rita has only 225 mL of pancake mix left in the box. How much milk should she use?
100 mL
125 mL
150 mL
175 mL

4- Of the 1120 spectators at a hockey game, about 80% are home team fans. How many of the spectators are fans of the visiting team?
918
896
224
202

Answers

1 width is 64 cm
2 option 2
3 28.5
4 175
5 224

1. A kite has a width to length ratio of 4:5, so let the width be 4x and the length be 5x. We know that the length is 80 cm. 80 = 5x

Divide by 5.

16 = x.

Now, the width is 4x.

16 times 4 is 64.

The width is 64.

2. Find the unit rate for each juice. The unit rate is ml / dollar.

The first juice has a unit rate of 150 / 1.

The second has a unit rate of 500 / 1.75.

The third has a rate of 1000 / 4.

The fourth has a rate of 2000 / 7.25

Put all values into a calculator. (First: 150, Second: 285.714285, Third: 250, Fourth: 275.862068966)

Whichever one can buy the most ml for a dollar is the best buy.

In here, that is the SECOND rate, which is 1.75 for 500 ml.

She earns 3% commission on all her sales, so if s represents her sales, she'd earn .03s. Inhere, she sells $950 in total. That is her total sales.

So you plug $950 into the equation as s.

.03 (950) = 28.5

She earned $28.50.

Poor Maya!

3. You set it up in ratios. She needs 250 mL of milk for every 325 mL of pancake mix. 250 milk / 325 mix.

But she only has 225 mix.

So you set up 250 milk / 325 mix = M milk / 225 mix

As in all proportions, you cross multiply.

250 x 225 = 325 x M

56250 = 325M

Divide by 325 on both sides.

173.076923077 = M

She needs about 175 mL. The fourth choice.

4. There are a total of 1120 spectators, made of only home team fans and visiting team fans.

There is a total of 100% of people, and 80% are supporters of the home team, so to find the supporters of the visiting team you subtract 100% by 80%.

100 - 80 = 20.

So 20% of the spectators are supporters of visiting team. Now 20% of the total, and 20% = .20.

.20 x 1120 = 224

224 people are fans of the visiting team.

5. A 500-mL bottle of insect repellent has 22 mg of DEET, a chemical used to keep mosquitos away. The same insect repellent sells in 710-mL bottles. Which of the following proportions can be used to find the amount of DEET in the larger bottle? *

If a 500 mL bottle has 22mg of DEET, then 500ml / 22mg

So set up the equation 500 / 22 = 710 / x

Now, cross multiply.

500x = 710 times 22.

500x = 15620

Divide by 500.

x = 31.24

Other possible proportions are:

22 / x = 500 / 710

x / 22 = 710 / 500

22 / 500 = x / 710

Hope this helps and hope I get Brainliest! Lol :)

I spent half an hour explaining and typing this :(

-15x²+7x+23=0 i just need the answer of it even it's not correct charr cge na loves​

Answers

Use the quadratic formula where -15 = a, 7 = b, 23 = c:  [tex]\frac{-b +- \sqrt{b^2 - 4ac}}{2a}[/tex]

Plug in the values: [tex]\frac{-7 +- \sqrt{7^2 - 4(-15)(23)}}{2(-15)}[/tex]

And get: [tex]\frac{-7 +- \sqrt{49 +1380}}{-30}[/tex]

Which simplifies to: [tex]\frac{-7 +- \sqrt{1429}}{-30} = (-7 + 37.8021163)/-30 OR (-7 - 37.8021163)/-30 = 30.8021163/30 OR -44.8021163/30[/tex]

Those are approximately 1 and -1.5

Working simultaneously, four fudge machines complete a big order in 32 hours. All the machines at the fudge factory work at the same pace. a If only half of the machines are working, in how many hours will the order be complete?

Answers

If only half the machines are working at the same rate as before, the order will be finished in 64 hours.

When the four big fridges were working simultaneously, they were able to finish the order in 32 hours.

With only half of these fridges, they will only be half as fast. This means that they will complete the order in double the time:

= 32 x 2

= 64 hours

In conclusion, the order will be completed in 64 hours.

Find out more at https://brainly.com/question/19465480.

The value of a comic book in the dollars has been found to be 0.20y + 1.50, where y is tye number of years since it was released. for the question there is increasing per year for the comic and the initial value​

Answers

The increase rate per year is 0.

What is calculus?

Calculus is a branch οf mathematics that deals with the study οf rates οf change and hοw things change οver time. It has twο main branches, differential calculus which studies instantaneοus rates οf change, and integral calculus which deals with accumulatiοn and area.

here given equatiοn fοr the value οf the cοmic bοοk is:

V(y) = 0.20y + 1.50

where y is the number οf years since it was released.

Tο find the rate οf increase per year fοr the value οf the cοmic bοοk, we can take the derivative οf V(y) with respect tο y:

dV/dy = 0.20

This means that the value οf the cοmic bοοk increases by 0.20 dοllars per year.

Tο find the rate οf increase per year fοr the initial value οf the cοmic bοοk, we need tο lοοk at the y-intercept οf the equatiοn fοr V(y). The y-intercept is the value οf V when y is 0, which is:

V(0) = 0.20(0) + 1.50 = 1.50

Therefοre, the initial value οf the cοmic bοοk is $1.50.

Tο find the rate οf increase per year fοr the initial value, we can calculate the derivative οf the initial value with respect tο y, which is:

d/dy (1.50) = 0

This means that the initial value οf the cοmic bοοk dοes nοt change with respect tο time, sο its rate οf increase per year is 0.

To learn more about calculus, from the given link.

https://brainly.com/question/6581270

#SPJ1

10 4 4) Maureen has spent 12 9/10hours tutoring students in math and 6 3/4 tutoring students in science, Which choice is the best estimate for how many hours Maureen has spent tutoring?
(A) 15 hours
(C) 20 hours
(B)25 hours
(D) 30 hours​

Answers

Answer:

(C) 20 Hours

Step-by-step explanation:

if the time is 10pm what time will it be in exactly 12.82 minutes?

Answers

Answer:

.....................

Step-by-step explanation:

Answer:

10:13.22

Step-by-step explanation:

18 lb 3 oz + 25 lb 5 oz
(Have the answer as lbs and oz not a decimal)

Answers

Answer:

43lb 8oz

Step-by-step explanation:

add 18lb and 25lb which makes 43lb

and then add the oz of 3oz and 5oz which makes 8oz

A girl scout troop hiked 5.8 kilometers southeast in 1.5 hours. What was
the troop's velocity?
O 3.9 km/h southeast
о
4.9 km/h southeast
5.8 km/h southeast
O 7.2 km/h southeast

Answers

Answer:

the answer is 3.9 km/h southeast

Solve the inequality and complete a line graph representing the solution. In a minimum of two sentences, describe the solution and the line graph.

8 ≥ 3x + 5

Answers

X is less than or equal to 1 the line graph would be a line graph with the numbers -5 -4 -3 -2 -1 0 2 3 4 5 you would put a CLOSED dot on 1 and an arrow pointing left

The two sentences would be————

To get the solution you would first isolate the variable by subtracting five from both sides. To get three is greater or equal to three X then you would divide three by three to get one. Then you would plot that in a line graph by placing a closed dot on one which represents x is equal to or less than 1. Then you make an arrow pointing left because x is less than or equal to 1.

The ratio of boys to girls at a movie is 4:7. If there are 21. girls, how many boys are
at the movie?

Answers

Answer:

12

Step-by-step explanation:

7*3=21 so 4*3=12

which expression would be easier to simplify if you use the associative property to change the grouping.​

Answers

Answer:

the answer is D (27 + 4.5 ) + 1.5

Hope that helps

Answer:

Amswer is A

Step-by-step explanation:

Plz helpppp I think I know it but I need to check my answer

Answers

Answer:

D

Step-by-step explanation:

(2*6)^4=20736

2^4*6^4 is the same as the expression which is equal to 20736

Answer d is correct good job man

Adrienne and Suki simplified the expression –8 – (–6). Whose answer is correct? Explain where the error was made. The image is below. * 1 point Suki's; Adrienne subtracted 6 instead of subtracting –6. Suki's; Adrienne subtracted 8 instead of subtracting –8. Adrienne's; Suki added 6 instead of subtracting –6. Adrienne's; Suki added 8 instead of subtracting 8.

Answers

Answer:

The answer is -2

Step-by-step explanation:

When you subtract a negative with a negative, you change the problem to an addition by adding the negative number to a positive. -8--6 would look like -8+6.

what is 5 and one half minus three and one third?

Answers

Answer:

1 2/3

Step-by-step explanation:

5 1/2 = 11/2 x 3 = 33/6

3 1/3 = 10/3 x 2 = 20/6

30 - 20 = 10/6 = 1 4/6 = 1 2/3

Answer: 2 1/6

Step-by-step explanation:

5 1/2 - 3 1/3

=

5 3/6 - 3 2/6

=

5 - 3 = 2

3/6 - 2/6 = 1/6

= 2 1/6


Which equation below shows a correct first step for solving 3x = -12
A 3x+ 3 = -12 + 3
B 3x- 3 = -12 - 3
C 3(3x) = 3(-12)
D 3x/3=-12/3

Answers

The answer is A. You just solve each one and you would find that it would be the same as 3x=-12.

8. Calculate the length of r or st

Answers

9514 1404 393

Answer:

  30 miles

Step-by-step explanation:

The Law of Sines is used for this purpose. The angle at R is the difference ...

  180° -(23° +34°) = 123°

Then the length r satisfies ...

  ST/sin(R) = RT/sin(S)

  ST/sin(123°) = (20 mi)/sin(34°)

  ST = (20 mi)sin(123°)/sin(34°) ≈ 30.00 mi

The length of r or ST is 30 miles.

I RLLY NEED HELP BC THIS WAS DUE ALREADY!!! Answer ASAP thank you!

Answers

Answer:

10,560 yards

Step-by-step explanation:

5280 plus 5280 equals 10,560

Oof I’m failing as well girly

Which of these terms does not describe polygon A’B’C’D?

A. Rotation

B. Transformation

C. Reflection

D. Image

Answers

The terms that does not describe polygon A’B’C’D should be considered as the option c. reflection.

What is reflection?

In terms of geometry, a reflection should be known as the flip, It should be considered as the mirror image of the shape. The image should reflect via the line that we called as the reflection line.

When it should be at reflection so each and every point in the figure should be equidistant with respect to the another figure.

hence, The terms that does not describe polygon A’B’C’D should be considered as the option c. reflection.

Learn more about polygon here: https://brainly.com/question/24452286

Find the difference 3.4-(-1.5)

Answers

Answer:

4.9

Step-by-step explanation:

-×-=+

; 3.4 + 1.5=

4.9

im stupid and dont want to help my little brother so. and you have to show your work

Answers

242 is the correct answer

Answer:

242

Step-by-step explanation:

   242

4/968   how many times does 4 go into 9?  2 times put the 2 above the 9

 8            4 times 2 equals 8 so you put the 8 below the 9 and subtract

  1 6                   9 minus 8 equals 1 than you drop the 6

  1 6          how many times does 4 go into 16? 4 times. put the  4 above the 6

    0 8        than multiply 4 *4 =16 than 16-16=0 drop the 8

       8          4 goes into 8, 2 times  the 2 goes above the 8. 4*2=8

        0            8-8=0

factor the equation 25x^2+70x+49

Answers

Answer:

(5x+7)^2

hope this helps

Mr. Brooks has $14.20 in his checking account, he uses
his debit card to buy four Sonic meal deals for $4.25 each. His
bank charges him a $20 overdraft fee for insufficient funds.
What is the new balance in Mr. Brooks’ checking account?

Answers

Answer:

-$22.80.

Step-by-step explanation:

The 4 meals cost 4.25 * 4 = $17 which gives him a new balance of  

14.20 - 17 -20

= -$22.80.

- Heidi bought an 18 ounce bottle of Castor Oil. If each dose is ounce, how many doses are
in the bottle?

Answers

Answer:

18 doses

Step-by-step explanation:

Since it says each dose is a ounce.

how do I solve for x?

Answers

Answer:

85

Step-by-step explanation:

The sum of the measures of the interior angles of a triangle is 180 deg.

x + 52 + 43 = 180

x + 95 = 180

x = 85

Answer: 85

The angles in a triangle add up to 180 degrees

180 - 52 - 43 = 85

x = 85 degrees

Sean was at batting practice. He swung 25 times but only hit the ball 15 times. Write the simplified ratio for how many times Sean swung the bat compared to how many times he hit the ball.

Answers

Answer:

25:15

Step-by-step explanation:

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