solve x for 7× + 3 = 31​

Answers

Answer 1
The X after the 7 is 4

X=4
Answer 2

Answer:

X = 4

Step-by-step explanation:

7x + 3 = 31

Step 1: Subtract 3 from both sides.

7x + 3 - 3 = 31 - 3

7x = 28

Step 2: Divide both sides by 7.

7x/7 = 28/7

Therefore, the answer is X = 4


Related Questions

please help !! And I'll give brainlist

Answers

Answer:

106.6 [tex]cm^{2}[/tex]

Step-by-step explanation:

A = 1/2bh

Area of a triangle = 0.5 x base x height
0.5 x 16.4 x 13
=106.6 cm^2

Solve for x and found your answer to the nearest tenth.

Answers

Answer:

11.1

Step-by-step explanation:

To find the side measurement we have to use trig, and the trig function Cosine, or cos. We use the because cosθ=[tex]\frac{adjecent}{hypotenuse}[/tex]. So cosθ=[tex]\frac{x}{15}[/tex], then to isolate x multiply both sides by 15. Now we have 15cos42=x, plugging this into the equation we get that x=11.1

The Washington family had dinner at a restaurant and the bill was $85.00. They gave their server a $13.60 tip. What percent of the cost of the meal did they leave as a tip?

Answers

Answer:

The tip for the server is 16%

Step-by-step explanation:

13.6 is 16% of 85.

#1 Which of the following equations is equivalent to y=3(x-2)+7

A) y=3x+1
B) y=3x-13
C) y=3x-1
D) y=3x+5

Answers

Answer=a
Reasoning
3times -2 is -6 and -6 plus 7 is one

The line plot below shows data on the total number of hours that each volunteer
spent at a nature center one week. Which question cannot be answered using
the data in the graph?
Volunteer Nours
ht
>
& more
How many volunteers worked a total of 4 hours?
3
How many volunteers worked at the center that week?
Did any volunteers work at least 6 hours but no more than 7 hours?
pid most of the volunteers more or less than hours

Answers

Answer:

How many volunteers worked a total of 4 hours?

Step by Step Explanation: Its the right answer i just took the test yesterday and i made a 100%

PLEASE ANSWER FOR BRAINLIST!!!!!!!!

Answers

Answer:

blue=2

green=1

orange=2

red=5

Please answer this question with explantion.
-35 × -98

Answers

a positive 3430. because two negatives that are being multiplied by eachother are automatically positive.

Tameka is seeking a loan with a simple interest rate of 8% per year. If she borrows $5,000, how much interest will she be charged after 24 months?

Answers

Answer:

$800

Step-by-step explanation:

5000 × 8% = $400(interest in a year)

400 × 2 = $800(24 months=2years)

Please Help
Me solve this question

Answers

Answer:

2410.26

Step-by-step explanation:

This is a bit complicated but, you have to take 3.5% of 2,250 (2,250*0.035=78.75). Then add 78.75 to the total (2,250) (2328.75 new total). Next take 3.5% of the new total and repeat that process and you end up with 241.26.

Liam is swimming at 3 kilometers per hour. How long will it take Liam to travel 4.5 kilometers?

Answers

Answer:

One hour and thirty minutes.

Explanation:

3km = 1 hour

1.5km = 30 min (half of distance, half of time)

4.5km = 1 hour and 30 min

Answer: Uhhhh

Step-by-step explanation:

1 hour 30 but stop saying Uhhhh for the answer to some people's questions okay? Thanks!

the local weather reports stated there is a 1/4 chance of rain on tuesday how likely is it to rain

Answers

25% chance of rain !!!!!!!!!
The answer should be 25% as that is 1/4 chance. Hope this helps!

help please, i'll give the crown thing if I can

Answers

Answer:

i) p = 4

ii) p = 8

iii) p = 12

Step-by-step explanation:

Here, we need to understand the initial relation

Mathematically, we have this as;

2.79 * p = c

So let us calculate the value of p for each value of c

i) 2.79p = 11.16

p = 11.16/2.79

p = 4

ii) 2.79p = 22.32

p = 22.32/2.79

p = 8

iii) 2.79p = 33.48

p = 33.48/2.79 = 12

11in 8.1 in 15 in 7 in?

Answers

Answer:

These dimensions represent area of a shape, or area of each side of a 4 sided 3D shape.

please answer this question for me

Answers

Answer:

200

Step-by-step explanation:

2*5=10

4*5=20

20*10=200

3. Scout is conducting a research project on traffic patterns
in her town. She realizes that at 6:00 AM each morning, the
traffic lights reset and function on a pattern. The traffic light
on Main St. turns red every 7 minutes. The traffic light on Elm
St. turns red every 15 minutes. At what time will both lights be
red at the same time?

Answers

Answer:

7:45

Step-by-step explanation:

Since they both turn red at differnt times, you have to find a multiple to find the time they will be both on

Main St: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, 98, 105

Elm St. 15, 30, 45, 60, 75, 90, 105

They will both turn on 105 minutes or 1 hour and 45 minutes from 6

6 + 1 hr 45 min = 7:45

Mateo decide pedir un préstamo de 600 soles durante 2 años a un banco el cual le ofrece una tasa de interés anual de 16%calcula al interés simple y el monto total que pagará al término de 2 años

Answers

Answer:

192 and 792

Step-by-step explanation:

Given that

The principal is 600 soles

The Time period is 2 years

The Rate of interest is 16%

We need to find out the simple interest and the total amount paid at the end of 2 years

As we know that

SImple interest is

= Principal × rate of interest × time period

= 600 × 16% × 2

= 192

And, the amount is

= Principal + interest

= 600 + 192

= 792

what is the measure of each angle?

help pls!

will mark brainliest**

geometry!!

Answers

Answer:

A straight angle is the same as half the circle and is 180° whereas a right angle is a quarter of a circle and is 90°. You measure the size of an angle with a protractor. Or could be shown by an arc on the figure to indicate which angles that are congruent

C=180-102=78
d=180-92=88
a+140=2*102 => a=204-140=64
a+b=2d=176 => b=176-64=112

Evaluate 17x + 5.5y when x = 6 and y= 9

Answers

Step-by-step explanation:

given x = 6, y = 9,

[tex]17x + 5.5y = 17(6) + 5.5(9) \\ = 102 + 49.5 \\ = 151.5[/tex]

Answer:

151.5

Step-by-step explanation:

= 17(6) + 5.5(9)

= 102 + 49.5

= 151.5

Hope you got it..

Pls help I need this now

Answers

The answer is A to your question

If f(x) = 2x - 1, then f(-2) =

Answers

Answer:

-5

Step-by-step explanation:

for x=-2

f(x)=2(-2)-1

f(x)=-5

Marisol ears $5 more than Twice what Diego earns babysitting. Let d represent the amount Diego earns, and m represent the amount Marisol earns. Which equation shows how much Marisol earns?

Answers

Step-by-step explanation:

this is equation......................

Plz help me! Brainlist will be picked.

Answers

Answer:

$2.96

Step-by-step explanation:

1.15x = 3.40   x = last year's price.  If there price was exactly the same, I would put 1x, but this year's price is 15% or .15 higher.

1.15x = 3.40  Divide both sides by 1.15 and round to the nearest cent.

x = 2.96

Check:

Last year + 15% (.15)

2.96 + .15(2.96)

2.96 + .44 rounded to the nearest cent

3.40

Helppp again please ,!,!!

Answers

Answer:

The answer's are down below.

Step-by-step explanation:

4 sandwiches and 2 cupcakes are $15.00

5 juices and 4 bagels are $12.50

4 bagels and 5 juices are $11.60

2 bagels and 4 cupcakes are $10.00

Anika is hiking on a rectengular trail at the nation park there are four resting spots along the corners of the trail on the map they are marked with coordinates of -2,2) 1,2) 1,-2) and -2,-2 if rach unit represents 1 mile find the perimiter of the trail in miles using the coordinates

Answers

Answer:

The perimeter is 14 units

Step-by-step explanation:

Given

[tex]A = (-2,2)[/tex]

[tex]B = (1,2)[/tex]

[tex]C = (1,-2)[/tex]

[tex]D = (-2,-2)[/tex]

Required

Determine the perimeter

To do this, we simply calculate the distance between the sides of the rectangle i.e. AB, BC, CD and DA.

Distance (d) is calculated using:

[tex]d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}[/tex]

For AB

[tex]A = (-2,2)[/tex] --- [tex](x_1,y_1)[/tex]

[tex]B = (1,2)[/tex] --- [tex](x_2,y_2)[/tex]

[tex]AB = \sqrt{(-2 - 1)^2 + (2 - 2)^2} = \sqrt{9} = 3[/tex]

For BC

[tex]B = (1,2)[/tex] --- [tex](x_1,y_1)[/tex]

[tex]C = (1,-2)[/tex] --- [tex](x_2,y_2)[/tex]

[tex]BC = \sqrt{(1-1)^2 + (2--2)^2} = \sqrt{16} = 4[/tex]

For CD

[tex]C = (1,-2)[/tex] --- [tex](x_1,y_1)[/tex]

[tex]D = (-2,-2)[/tex] --- [tex](x_2,y_2)[/tex]

[tex]CD = \sqrt{(1 - -2)^2 + (-2 -- 2)^2} = \sqrt{9} = 3[/tex]

For DA

[tex]D = (-2,-2)[/tex] --- [tex](x_1,y_1)[/tex]

[tex]A = (-2,2)[/tex]  --- [tex](x_2,y_2)[/tex]

[tex]DA = \sqrt{(-2--2)^2 + (-2-2)^2} = \sqrt{16} = 4[/tex]

So, the perimeter (P) is:

[tex]P = AB + BC + CD + DA[/tex]

[tex]P = 3 +4 + 3 + 4[/tex]

[tex]P = 14[/tex]

The perimeter is 14 units

Is [tex]\frac{x^{2}}{2}[/tex] an equation that can be simplified? If so, what is its simplified form?

Answers

1/2 x^2
hope this helped you

The measure of minor arc JL is 60°.

Circle M is shown. Line segments M J and M L are radii. Tangents J K and L K intersect at point K outside of the circle. Arc J L is 60 degrees.

What is the measure of angle JKL?

Answers

Answer:

m∠JKL = 120°

Step-by-step explanation:

The measure of an angle formed by a two tangents drawn from a point outside the circle is the the difference of the intercepted arcs

minor arc JL = 60     major arc JL =  360 - 60 = 300

m∠JKL = 1/2(300 - 60) = 1/2(240) = 120

A tangent to a circle is a line that cuts it in exactly 1 point.
true or false

Answers

I think the answer is faulse

Answer:

true

Step-by-step explanation:

because it touches the end of the circle it doesn't intersect in more than one

Heeelp!!
Henry loves to play the piano but doesn't like practicing the exercises his piano teacher assigns. Henry knows the exerc
ises will help him play better though, so he tries to
motivate himself using his favorite treat - chocolate chip cookies. There is a proportional relationship between the am
ount of time (in hours) that Henry practices the piano,
x, and how many cookies he gives himself.y.
When Henry practices for 3 hours, he gives himself 9 cookies.
Write the equation for the relationship between x and y.

Answers

Answer:

x3=y

Step-by-step explanation:

Central and inscribed angle practice

Answers

Answer:

sorry

Step-by-step explanation:

I don't know what you want , do you want to know how to construct an inscribed angle or what

. Complete each equation with a number so that the equation has the stated solution(s). a) x^2+7=x^2+_____; no solution

Answers

Answer: other than 7

Step-by-step explanation:

Given

Equation is [tex]x^2+7=x^2+?[/tex]

For an equation to have no solution, the missing number can be any number other than 7

because if we put 7 then it justifies the equation i.e. [tex]7=7[/tex] while on the other hand for a number other than 7, it does not justify the equation.

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