5a+8+(-2a)=-7
I need help with this question especially because of the parenthesis

Answers

Answer 1

Answer:

5a+8+(-2a)=-7

5a+8-2a=-7

5a-2a=-7-8

3a=-15

3a/3=-15/3

a=-5

Answer 2

Answer:

a = -5

Step-by-step explanation:

Simplify both sides:

5a + 8 + (-2a) = -7

(5a + -2a) + 8 = -7

3a + 8 = -7

Start solving for a by subtracting 8 from both sides

3a+8-8 = -7 - 8

3a = -15

Next, divide both sides by 3

3a/3 = 1

-15/3 = -5

a = -5


Related Questions

Lauren needs 3.6 meters of ribbon to make a bow. She
cuts the ribbon off a roll that has 26.45 meters of ribbon.
How many meters of ribbon are left on the roll?

Answers

The answer is 22.85
Hope this helps

HELPPPP NOW I WILL GIVE U THE BRAINLIEST
The shop has 1,080 ounces of cranberry juice and 670 ounces of passion fruit juice.



If the juices are used to make Crazy Cranberry smoothies, which juice will run out first?

The ___ juice would run out first.


How much of the other juice will be left over?

There will be ____ounces of passion fruit juice left over.

Answers

Answer: i need to know how many ounces of each juice are needed per smoothie

Step-by-step explanation:

there are 22 fourth grade students and 26 fifth grade students each cheerleading group will have 8 members what equation can be used to find out how many groups can be made

Answers

Answer:

(22 + 26) ÷ 8 = g (or groups)

Step-by-step explanation:

Answer:(26 + 22)/8 = z

Step-by-step explanation:

Algebra, help please ASAP

Answers

Answer:

a

Step-by-step explanation:

m*m= m^2

-15*2=-30

-15m+2=-13m

Answer:

a

Step-by-step explanation:

(m-15)(m+2)

malinda must take30 cubic centimeters of her medicine every 6 hours.how many milliliters are equivalent to 30 cubic centimeters

Answers

Answer:

30 milliliters

Step-by-step explanation:

multiply the volume value by 1

Write the ratio 4 to 9 in two different ways

Answers

Answer:

4;9

4 to 9

4/9

or 4 blocks and 9 circles

Step-by-step explanation:

WILL GIVE BRAINLIEST! Find an equation of the circle and sketch it if it has: Tangent to y-axis, r=5, contains (10, 7)

Answers

Answer:  (x-5)^2 + (y-7)^2 = 25

Center = (5,7)

Radius = 5

======================================================

Explanation:

The circle must be tangent to the y axis, and it has a radius of 5, so that means the center (h,k) must either be on the line x = 5 or x = -5, since those vertical lines are exactly five units away from the y axis.

But we're also told that (10,7) must be on the circle. That rules out x = -5 because the distance from (10,7) to (-5,k) is going to be larger than 5. I recommend drawing out a right triangle to see why this is the case.

So the center (h,k) must be on the line x = 5.

The center is the point (h,k) = (5,k)

Plug that h value along with (x,y) = (10,7) and r = 5 into the equation below

Solve for k.

(x-h)^2 + (y-k)^2 = r^2

(x-5)^2 + (y-k)^2 = 5^2 .... plug in h = 5 and r = 5

(10-5)^2 + (7-k)^2 = 25 ... plug in x = 10 and y = 7

25 + (7-k)^2 = 25

(7-k)^2 = 25-25

(7-k)^2 = 0

7-k = sqrt(0)

7-k = 0

-k = 0-7

-k = -7

k = 7

The center is (h,k) = (5,7)

We have (x-h)^2 + (y-k)^2 = r^2 updating to (x-5)^2 + (y-7)^2 = 25

The equation of the circle is   (x-5)^2 + (y-7)^2 is25 .  The center of the circle is Center is (5,7) .Radius of the circle  is  5

What is equation of the circle?

Circle's basic equation is represented by:

(x-h)2 + (y-k)2 = r2

where the radius is r and the circle's center's coordinates are (h,k).

Let's first consider what a circle is before determining its equation. A circle is a collection of all points in a plane that are uniformly distanced from a fixed point. The fixed point is referred to as the circle's center. The radius of a circle is the separation between the center and any point along its circumference. In this article, we'll explain what a circle's equation looks like in standard form and show you how to calculate a circle's equation when its center is both the origin and another point.

The center (h,k) of the circle, which must be tangent to the y axis and have a radius of 5, must either be on the line x = 5 or x = -5 since both vertical lines are both located exactly five units from the y axis.

The need that (10,7) be on the circle is also stated, though. That eliminates the possibility of x = -5 because the distance from (10,7) to (-5,k) will be more than 5. To understand why this is the case, I advise you to sketch a right triangle.

Therefore, the line x = 5 must contain the center (h,k).

The point (h,k) = is the center (5,k)

Given ,

In the equation below, enter that h value along with (x,y) = (10,7) and r = 5.

Calculate k using the formula.

(x-h)^2 + (y-k)^2 = r^2

(x-5)^2 + (y-k)^2 = 5^2 add a h = 5 and r = 5 plug.

(10-5)^2 + (7-k)^2 = 25  Input x = 10 and y = 7

25 + (7-k)^2 = 25

(7-k)^2 = 25-25

(7-k)^2 = 0

7-k = sqrt (0)

7-k = 0

-k = 0-7

-k = -7

k = 7

(h,k) = is the center (5,7)

Updated to (x-5) + (y-7) = 25, we have (x-h) + (y-k) = r2.

Therefore The equation of the circle is   (x-5)^2 + (y-7)^2 is25

To learn more about equation of the circle refer to:

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please helppp :(

Enter the number that belongs in
the green box.

Answers

Answer:

55?????

Step-by-step explanation:

A certain plant grows 1 3/4 inches every week how long will it take the plant to grow 9 1/4 inches. HELPPP I’m dumb

Answers

It only takes 13/4 days inn week

identify the zeros of f(x) = (x + 9)(x − 4)(6x + 1).

Answers

Answer:

x = - 9, x = - [tex]\frac{1}{6}[/tex], x = 4

Step-by-step explanation:

To obtain the zeros, equate f(x) to zero, that is

(x + 9)(x - 4)(6x + 1) = 0

Equate each factor to zero and solve for x

x + 9 = 0 ⇒ x = - 9

x - 4 = 0 ⇒ x = 4

6x + 1 = 0 ⇒ 6x = - 1 ⇒ x = - [tex]\frac{1}{6}[/tex]

At the assembly line, Joe is able to pack 150 boxes of books in one hour. At this rate, how many complete boxes can Joe pack per minute?

Answers

joe be going sicko mode, he finna pack 5/2

they want complete so I'd go with 2 boxes

Answer:

2

Step-by-step explanation:

If he can pack 150 per hour and there are 60 minutes in an hour, then to find the boxes per minute, you must divide 150 by 60. That gets 2.5, and the question said complete boxes so 2.

What is the value of x in the equation shown?
5x - 3(x + 9) + 10 = 4

Answers

X= 21/2
X=10.5
X=10 1/2
Pick one of those there all right pls mark me brainliest
[tex]\huge{\underline{\underline{\mathbb{\pink{Question}}}}}[/tex]What is the value of x in the equation shown?

5x - 3(x + 9) + 10 = 4

[tex]\huge {\mathcal{\purple{A}\green{N}\pink{S}\blue{W}\purple{E}\green{R}\pink{!}}}[/tex]

[tex] \implies [/tex][tex]5x - 3x - 27 + 10 = 4[/tex]

[tex] \implies [/tex][tex]2x - 17 = 4[/tex]

[tex] \implies [/tex][tex]2x = 4 + 17[/tex]

[tex] \implies [/tex][tex]2x = 21[/tex]

[tex] \implies [/tex][tex]x = \frac{21}{2} [/tex]

[tex] \huge \tt \underline \orange {X\:=\:10.5}[/tex]

The average depth of Lake Michigan is 85 meters below the surface. The deepest point in Lake Michigan is 196 meters lower than this. What is the lowest point in Lake Michigan relative to the surface?

Answers

Answer:

196 meters

Step-by-step explanation:

It would be 196 meters below or the lowest point would be the bottom. If it asks for feet do the conversion rate.

Answer:

-281

Step-by-step explanation:

–85–196 = – 85+(– 196) = –281

A movie theater charges $6 admission and $2 per box of popcom. Write a variable
expression for the cost of you watching a movie and eating b boxes of popcorn

Answers

Answer:

Step-by-step explanation:

C = 2b + 6

which rational number could comes next

Answers

Answer:

d

Step-by-step explanation:

B’s ratio could come next

i need help plz

Question: p=2w+2l for l
A- l=p-w
B- l=w-p
C- l=2w-p/2
D- l=p-2w/2

Answers

Answer:  Choice D

Step-by-step explanation:

p=2w+2l  Subtract 2w from both sides

p - 2w = 2w - 2w +2l   2w-2w = 0 cancels

p- 2w = 2l . Divide both sides by 2  2/2 =1 cancels leaving l isolated

p - 2w/2 = l

Reverse

l =  p-2w/2

 

i want to get at least a 90 on my next math test

Answers

Answer:

then study well

Step-by-step explanation:

that might help, but I could help with any study questions, but I cant do test questions from the test

Make sure to study any books that they give you trust me it will help

the cylindrical bucket contains 314 cubic inches of water. the height of the water is 4 inches. what is the radius of the bucket, to the nearest whole number? use 3.14 for pi

Answers

Answer: 5 (apex) , ur welcome .

Step-by-step explanation:

Find the distance between c(-6,5)and D(-3,1)

Answers

Answer:

7

Step-by-step explanation:

A township is a U.S. land measurement of about 36 square miles. About how many square miles are in 2 1/2 township​

Answers

Answer: 90 sqm

Step-by-step explanation:

The township's land measurement is 36 square miles. If you want to know the measurement in 2 1/2 townships you need to multiply 2 1/2 times the square miles in a single township.

Step 1: Convert 2 1/2 to an improper fraction.

2 1/2 = 5/2

Step 2: Multiply

5/2 x 36/1 = 180/2 = 90 sqm

Is this figure a triangle?

Side A:3 cm

Side B: 4 cm

Side C: 5 cm

explain the terms of length on the side

Answers

Step-by-step explanation:

Not because that not same number

Factorise : (5a-3b)2-1662​
pls give step by step

Answers

Answer:

6165421

Step-by-step explanation:

whatever you do to 1 side you have to do to the other. add 1662 as the calculation is a minus.

if i get this wrong im gonna fail plsfkdsjsdkl

Answers

Answer:

An apple, potato, and onion all taste the same if you eat them with your nose plugged

Step-by-step explanation:

I really need help rn I got 5 mins left

Answers

What number do you need help with?

Question 6 of 10
Which statement describes a liquid that has high surface tension?
A. Molecules at the surface are moderately attracted to the
molecules below.
B. Molecules at the surface are strongly attracted to the molecules
below.
C. Molecules at the surface are weakly attracted to the molecules
below.
D. Molecules at the surface have no attraction to the folecules
below.
Folecules
SUBMIT
science

Answers

Answer:

It is B!!!

Step-by-step explanation:

Molecules at the surface are strongly attracted to the molecules below. Then the correct option is B.

What is surface tension?

The tendency to reduce space produced by the tension of a convective surface film as a result of the topmost layer's particulate being drawn to the liquid's mass.

The molecules underneath are strongly drawn to the species on the surface.

Then the correct option is B.

More about the surface tension link is given below.

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What is the nature of the roots for y=2x2-5?

Answers

Answer:

x=[tex]\sqrt5/2[/tex] , x = -[tex]\sqrt5/2\\[/tex]

Step-by-step explanation:

2x^2-5=0

add 5 to both sides

2x^2-5+5=0+5

2x^2=5

(2x^2/2) = 5/2

x^2=5/2

x=[tex]\sqrt5/2\\[/tex] , x = -[tex]\sqrt5/2[/tex]

To determine the nature of the roots of the quadratic equation y [tex]= 2x^2 - 5[/tex], we can analyze its discriminant (denoted by Δ).

The discriminant is calculated using the formula Δ [tex]= b^2 - 4ac,[/tex] where a, b, and c represent the coefficients of the quadratic equation in the standard form [tex]ax^2 + bx + c = 0.[/tex] For the given equation, a [tex]= 2,[/tex] b [tex]= 0,[/tex]and c [tex]= -5.[/tex]Plugging these values into the discriminant formula, we have: Δ [tex]= 0^2 - 4(2)(-5) Δ = 0 + 40 Δ = 40[/tex]The discriminant is positive, indicating two distinct real roots.

Since the discriminant is greater than zero, we can conclude that the roots of the equation are real and different. Therefore, the nature of the roots for y[tex]= 2x^2 - 5 i[/tex]s that it has two distinct real roots.

To know more about quadratic equation visit:

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At a local department store, cardigans are typically priced at $15. Due to a special,
the cardigans are reduced to 80% of their original price.
How much are cardigans now?

Answers

Answer:

$3

Step-by-step explanation:

80% of 15 is 12

15-12=3

A submarine begins at -212 feet below sea level. If
the submarine plans to descend at 15 feet per minutes,
how long will it take the submarine to reach a depth of
-287 feet?
A. 75 minutes C. 7 minutes
B. 8 minutes D. 5 minutes

Answers

Answer:

Step-by-step explanation:

Ending depth = -287

Starting depth= -212

Difference =      -75 feet

The submarine plans on dropping 15 feet a minute.

Time = displacement / time = -75/-15 = 5 minutes.

Answer: D

Cual es la diferéncienla de resolver un sostiene de 2 y nos de 3

Answers

Answer:

yes

Step-by-step explanation:

MATTRICES PLEASE HELP WILL GIVE BRAINLIEST!!!!!!!!!!!!!

Answers

Answer:

I think the best answer for me would be c if thats wrong sry

I hope this helps :)

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