Solve 3a – 8= 5a + 12

Show your work. (please)

Answers

Answer 1

Answer:

a = - 10

Step-by-step explanation:

3a – 8 = 5a + 12

3a – 8 + 8 = 5a + 12 + 8

3a = 5a + 20

3a - 5a = 5a + 20 - 5a

- 2a = 20

[tex]\dfrac{-2a}{-2}=\dfrac{20}{-2}[/tex]

a = - 10


Related Questions

What is the slope of the line whose equation is y=3/5x-4

Answers

Slope-intercept form:

y = mx + b

Your equation in slope-intercept form (which you already have :)):

y = 3/5x - 4

So your slope is m = 3/5

Do you need help finding the y-intercept or x-intercept? I hope this helps and answers your question! Have a lovely day!

Andrade's dad ran 12 miles in 75 minutes. How long would it take him to run one mile?

Answers

If Andrade's dad can run 12 miles in 75 minutes, it would take him only 6.25 minutes to run 1 mile.

To get this answer, you need to divide 75 (the total amount of minutes) by 12 (the total amount of miles).

Answer:

6.25

Step-by-step explanation:

75 divided by 12

hope this helps

which expression is equivalent to 3x - -3y

Answers

Answer:

3x + 3y

Step-by-step explanation:

The two minus signs make a plus sign. Therefore, we replace the minus signs with a plus sign, getting 3x + 3y.

3x+3y
The two minus signs cancel each out and you add it instead.

Find the value of X. Show your work.

Congruent triangle

Answers

Answer:

x = 3

Step-by-step explanation:

exterior angle of a triangle is equal to the sum of the measures of the two remote interior angles

97 + x = 64 + 27

x = 97 - 64 - 27 = 6

Answer: x=-6

you know that the interior angles of a triangle equal 180°. so lets find the remaining angle measure

64 + 27 = 91

180 - 91 = 89

so 89 is the third interior angle of the triangle. now let's find the exterior angle.

you know that the extended angle is supplementary; which means it will equal 180° as well. so lets add the third interior angle we just found and let's add it to the unknown expression:

89 + 97 + x = 180

186 + x = 180

-186        -186

x = -6

now it might seem wrong because x is negative and it feels like it should be positive. but let's check our answer.

64+27+89 does equal 180

and 97+(-6)+89 does equal 180

i hope this helps!

-18=-5x-(-2) what is x?

Answers

Answer:

x = 4

Step-by-step explanation:

-18 = -5x-(-2)

i) when there is a '-' sign in front of an expression in parentheses, change the sign of each term in the expression

-18 = -5x+2

ii) move -5x to the left-hand side and change its sign

5x-18 = 2

iii) move -18 to the right-hand side and change its sign

5x = 2+18

iv) add the numbers

5x = 20

v) divide both sides of the equation by 5

[tex] \frac{5x}{5} = \frac{20}{5} [/tex]

[tex]x = 4[/tex]

The pizza shop down the street offers a special of a large pizza with 3 toppings. The choices of toppings

are pepperoni, sausage, ham, pineapple, cheese, onions, green peppers, hot peppers, mushrooms, and

anchovies.

How many ways can you arrange 3 toppings out of 10 toppings on a pizza?

Answers

Answer:

120 ways

Step-by-step explanation:

To solve this question, we would be using the law of combination.

In combination, we say that

nCr = n! / (n - r)! r!, where both r and n are integers.

Now, referring to question, we are asked how many ways we can arrange 3 toppings out of 10. This means we're looking for 10C3. Applying the earlier laid out formula, we have

10C3 = 10! / (10 - 3)! 3!

10C3 = 10! / 7! 3!

10C3 = 3628800 / 5040 * 6

10C3 = 3628800 / 30240

10C3 = 120

Therefore, the toppings can be arranged in 120 ways.

Leave a like if it helped you, please

(Giving brainliest to correct answer)

Congruence

Answers

Answer:СССР в зеркале

Кто первый спустит курок

Убеждаешь - ложно заявляя свободу личности.

Бушующие войны и П-С-О,

Космос, О-С-В

Брежнев Рейган

Страх оружия С-Я-С

До взаимного уничтожения

Силой и мощью

Союза Советских Республик

Патриоты работают силой порядка

Светлое строят будущее

Наука, Творчество, Семья, Союз,

Образование, Коммуналка, Труд,

Дисциплина, Планировка, Доброта.

Родина – поём тебе,

В верности клянёмся,

Пролетарии всех стран Соединяйтесь

Серп и Молот!

Step-by-step explanation:

the sum of 1 1/3 and 5/6

Answers

Answer:

2 1/6

Hope this helps!

Answer:

the right answer is 9/2

Step-by-step explanation:

thanks

Choose the relationship that is modeled by the table, the graph, and the equation. Morgan buys apples for $2 per pound. O Morgan swims 2 miles more than the number of hours he is exercising, © Morgan practices for 2 hours a day. O Morgan walks 2 miles per hour.​

Answers

Answer:

Morgan walks 2 miles per hour.

Step-by-step explanation:

Answer:

d Morgan walks 2 miles per hour.

Step-by-step explanation:

7. Triangle FIP was dilated by a scale factor of centered at the origin to
create triangle F'I'P', which has coordinates F' (1,-),1'(2,-1),P'(1,2).
Write the coordinates of the vertices of triangle FIP in the spaces
provided below.
FC
16
IC
17
PC
18

Answers

Answer:

AB is parallel to A'B'.

DO,1/2 (1/2x, 1/2y) =

The distance from A' to the origin is half the distance from A to the origin.

Step-by-step explanation:

A forest covers 73,000 acres. A survey finds that
0.3% of the forest is old-growth trees. How many acres of
old-growth trees are there?

Answers

Answer:

0.3% of 73,000 acres

in acres its 219

in square foot its 9,539,640

and in square yard its 1,059,960

Step-by-step explanation:

-8 - 1 = ?

Please show work for credit/ brainliest

Answers

Answer: The answer is -9

Step-by-step explanation:-8 - 1 = -9

It’s simple ! -8 and your getting smaller ( -1) = -9

Triangle ABC is transformed to triangle A′ B′ C′, as shown below:

Which equation shows the correct relationship between the measures of the angles of the two triangles?

a. The measure of angle ABC = The measure of angle A prime B prime C prime

b. The measure of angle ABC = The measure of angle B prime C prime A

c. The measure of angle BCA = The measure of angle A prime B prime C prime

d. The measure of angle BCA = The measure of angle C prime A prime B prime

Answers

Answer:

a. The measure of angle ABC = The measure of angle A prime B prime C

Step-by-step explanation:

Determine the slope and the Y-intercept of each linear equation. y = 6x

Answers

Answer:

Slope = 6

Y intercept = 0

Step-by-step explanation:

Given equation is: y = 6x

Equating it with y = mx + b

We find:

Slope m = 6

Y intercept b = 0

PLEASE HELPPPP ME!!!!!

Answers

Answer:

Problem 1: No

Problem 2: Yes

Step-by-step explanation:

Problem 1:

{(-2, 1), (-2, 3), (0, -3), (1, 4), (3, 1)}

This relation is not a function because there are two y-values, 1 and 3, related to one x-value, -2.

Thus, for a relation to be a function, every x-value must be related to exactly 1 y-value.

Problem 2:

{(0, 2), (3, 4), (-3, -2), (2, 4)}

In this relation, each x-value (domain) has exactly one y-value (range) that it is related to. Therefore, this is a function.

Lisa made 42 gallons of cider over two days. She made twice as many gallons of cider on day two as she made on day one. How many
gallons of cider did Lisa make on day two?

Answers

Answer: 28

Step-by-step explanation:

First you divide 42 by 3 and get 14

14 times 2 is 28 and 14+28= 42

so Lisa made 14 gallons of cider on day one and 28 gallons on day two

Jackson has twice as many cards as his friends Alex and Chase combined. Alex has 55 Cards in his collection. Jackson Has 200 cards in his collection. How many cards does Chase have in his collection?

Answers

Answer:

45

Step-by-step explanation:

200 divided by 2 = 100-55=45

Answer:

45

Step-by-step explanation:

200-55=145

Since Jackson has twice as many as them combined, he would have 45.

Answers to these 3 questions ?

Answers

43. 8y + 36 = 14y - 24
60 = 6y
10 = y

8(10) + 36
80 + 36
116

116° for the top and bottom angles

48 + x = 64
x = 16

64° is the measurements for the horizontal angles


44. 11.22(2) = 22.44
TE = 22.44

45. 4x + 8 + 27 = 6x
35 = 2x
17.5 = x

4(17.5) + 8
70 + 8
CD = 78

6(17.5)
CE = 105

I don't really get graphs​

Answers

My best guess would be D

If you are good at math please dm me on ig 14lies, or twitt binderelluh1

Answers

Answer:

Okay

Step-by-step explanation:

is the product of 18 negative numbers and 20 positive numbers a positive number or negative

Answers

Answer:

positive

Step-by-step explanation:

even negatives = positive

whatever positives = positive

positive*positive = positive

9x + 4

8x - 4

4x + 17

If the perimeter is 374 units, find the value of x and the area of the triangle.

The value of x is

The area is

square units.

Answers

Answer:

x = 17

Area = 10,362units²

Step-by-step explanation

Given the sides of the triangle

S1 = 9x+4

s2 = 8x-4

S3 = 4x+17

Perimeter of the triangle is the sum of all the sides

P = S1+S2+S3

374 = 9x+4+8x-4+4x+17

374 = 21x+17

21x = 374-17

21x = 357

x = 357/21

x = 17

Hence the value of x is 17

Area of the triangle is 1/2bh

A = 1/2bh

b is the base

h is the height

Let the base be 9x + 4 and height be 8x-4

b = 9x+4

b = 9(17)+4

b = 153+4

b = 157units

h = 8x-4

h =8(17)-4

h = 136-4

h = 132

Area = 1/2 * 157 * 132

Area = 157*66

Area = 10,362units²

Hello! :)
Please help me solve this + explain your answer :)

I will indeed give you Brainlst <3

Answers

Answer: the triangles are congruent

Step-by-step explanation: if u add up all the angles u get 180 so all angles are congruent

what is the distance, in units, between the y-intercept of f(x) = x^2 +7x - 18 and the y-intercept of the linear function that passes through the points shown on the table below
x g(x)
-5 2
10 11
25 20
60 41

Answers

Answer:

13

Step-by-step explanation:

f(x) = x² +7x - 18

y interception: x=0  y = -18    (0 , -18)

line g(x):  --- the data of (60,47) to make a linear function

y = mx + b

m = (11-2) / (10 - -5) = 9/15 = 0.6

b = mx - y = 0.6 * (-5) - 2 = - 5  ... y intercept: (0 , -5)

distance between 2 y intercept: 18-5 = 13

y = 0.6x - 5

Answer:

23

Step-by-step explanation:

f(x) (y intercept ) = -18

g(x) (y intercept) = 5

difference so f(x)-g(x)

-18-5 = -23

the answer cannot be negative

What is n2+5 If n=5?

Answers

Is that cube or n just multiply to 2?

Answer:

15

Step-by-step explanation:

n is 5 so 5 times 2 equals 10 and plus 5 it equal 15

Find |x| when x = 15 and x = – 15.

Answers

Answer:15

Step-by-step explanation:trust me

Answer:

The absolute of x would be 15

In the diagram below, what is the approximate length of the minor arc ?
X
O A. 5.7 cm
40"
9 cm
O B. 7.1 cm
N
O C. 6.3 cm
D. 3.1 cm

Answers

Answer: c. 6.3

Step-by-step explanation:

Which of the following correctly shows the distributive property?
A 4(x + 5) = 5(x + 4)
B
4(x + 5) = (4)(x) + 5
с
4(x + 5) = x + (4)(5)
D
4(x + 5) = (4)(x) + (4)(5)


Plsssss I need help

Answers

The distributive property is when you use the number on the outside of the parentheses to multiply the numbers on the inside of parentheses. This is usually used when the option is given and there is a variable inside.

Now onto the question, 4(x + 5)

We can actually break this down into parts so it’s not just one thing.

(4)(x) + (4)(5) would be the broken down form.

Thus, the answer to your question is:
D. 4(x + 5) = (4)(x) + (4)(5)

You paint four walls. Each wall is a rectangle with a length of 18 feet and a height of 12 feet. One gallon of paint covers about 320 square feet. How many gallons of paint do you need in order to cover the walls?

Answers

Answer:

you will need exactly 2.7 gallons of paint but if rounded you'll need 3 gallons

Step-by-step explanation:

2% of what number is 1

Answers

Answer:

50

Step-by-step explanation:

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