Mathematics High School

Is 7 a solution for the equation 3(x + 4)= 2x - (-2x)?

Answers

Answer 1

Step-by-step explanation:

3x+12=2x+2x

3x+12=4x

3x-4x=-12

-x=-12

x=12

Answer 2

Answer:

no, the answer is x = 12

Step-by-step explanation:

3(x + 4)= 2x - (-2x)

3(x + 4)= 2x + 2x

3x + 12 - 12 = 4x - 12

3x - 4x = 4x - 12 - 4x

-x = -12

x = 12

Related Questions

help me Please help me please help me please help me please

Answers

Answer:

second box is 5 and third bo is 40 and forth box is 0.25 I think! Sorry if it’s wrong!

Step-by-step explanation:

you divide them all by four.

Answer: the first blank would be 5 the second blank would be 40 and the last blank would be 4. The constant of proportionality is 4

solve 3(2x + 1) in standard form

Answers

3(2x+1)
= 6x +3

Hope this helps!! :)

Answer:

3(2x+1)= 6x+3

Step-by-step explanation:

Since all you do is multiply 3 and 2x and 3 and 1 which is 6x+3

csc(x) = 2
solve this

Answers

Answer:

mathpapa.com

Step-by-step explanation:

Find the slope of the line that passes through each pair of points.
A(-6,1) B(2,1)

Answers

Answer:

Slope = undefined

Step-by-step explanation:

Use the formula:

m = y2 - y1 / x2 - x1

Plug in the given information

m = 1 - 1 / 2 - - 6

Negative + Negative = Positive

m = 1 - 1 / 2 + 6

m = 0 / 8

m = 0/8

m = undefined

Identify the area of the composite shape.
71 cm squared
98 cm squared
34 cm squared
56 cm squared

Answers

Answer:

Option (1)

Step-by-step explanation:

Area of the composite figure ABCDEFGH = Area of rectangle ABGH - Area of rectangle CDEF

Area of rectangle ABGH = Length × Width

= 14 × 7

= 98 cm²

Area of rectangle CDEF = 9 × (7 - 4)

= 27 cm²

Area of the composite figure = 98 - 27

= 71 cm²

Option (1) is the correct option.

Select the statement that can be represented by -10 dollars.

Answers

Can we see the statement plz

Joshua drinks 8 cups of water a day. The recommended daily amount is giving in fluid ounces. How many food ounces of water does he drink each day?

Answers

Answer:

64 fluid acids=8 cups

Step-by-step explanation:

64 fluid = 8
Hope this helps

Solve please!!!!bbbbb

Answers

1:1

one blue to one yellow. IT IS THAT EZ

If m∠T = (2x + 85) °, m∠V = (5x + 29) °, and the sum of the measures of the angles is 93 ° , find the measure of each angle.

Answers

Answer: 79 and 14

X would be -3 because (2 x -3 + 85) is 79 and doing it for (5x + 29) would get 14.

A pair of jeans and a T-shirt cost $50. If two such T-shirts cost $1 more than the pair of jeans, find the cost of the pair of jeans.

(I need the answer ASAP)

Answers

Let’s make variables!
J = Jeans and T = T-shirts
J + T = 50
2T = J + 1
For first equation get T alone
T = 50 - J
2(50 - J) = J + 1
100 - 2J = J + 1
99 = 3J, J = 33
Solution: Pair of Jeans cost $33

What is the area of this figure

Answers

So you basically have to find the area as if it were a rectangle, which would be 19*13, which is 247. Then, you find the area of the corner taken out and subrtact it, so 3*4 is 12, and 247-12 is 235.

I’m stuck on this one- sorry if I’m annoying lol

Answers

Answer:

The first statement: "Her first mistake was in Step 2. She added 0.2 to each term instead of multiplying by 0.2."

Solve the system of linear equations by substitution.
6x - 9 = y
y=-3x

Answers

Point Form: ( 1 , − 3 )

Equation Form: x = 1 , y = − 3

Step-by-step explanation: Solve for the first variable in one of the equations, then substitute the result into the other equation.

Brainliest or a thank you please! have a great day/night

Point from (1, 3)

Equation form: x = 1 , y=-3

What is the average rate of change from 7 minutes to 11 minutes

Answers

Answer:

what do you mean?

Step-by-step explanation:

Calculate the missing angle measure of each triangle on the left butterfly wing. Write the angle measure inside the angle. The right butterfly wing is a reflection of the left butterfly wing and corresponding angles are congruent.

Answers

Answer:

See attached

The angle measures added.

One side is colored for you, you can do same for the other side

There are three small rounds of cheddar cheese in Grace’s refrigerator. She wants to bring a small wedge of cheese in her lunch every day for the next 12 days of school. If she wants to eat the same amount of cheese every day, how much cheese should she bring for lunch each day?

Solution:
Number Model:

Answers

Answer:

The one-fourth of one round of cheddar cheese

Step-by-step explanation:

Because if we cut every round in 4 equal pieces, 4x3=12, we will have 12 equal pieces of cheddar cheese.

The radius of the base of a metallic rod is 2 centimeters, and its height is 15 centimeters. What is the volume of this cylinder?
A.60 π cm^3
B.50 π cm^3
C.27 π cm3
D.36π cm^3

Answers

It is C because it’s right

A line passes through the points (-5, 9) and (-7, -5). What is its equation in point-slope
form?

Use one of the specified points in your equation. Write your answer using integers, proper
fractions, and improper fractions. Simplify all fractions.

Answers

Answer:

77777777777777777777

Answer:

y-9=7(x+5)

Step-by-step explanation:

Point-Slope form is

[tex]y-y_{1} =m(x-x_{1} )[/tex]

where m equals the slope of the line and y1 and x1 represent the y and x coordinates of one of the points on that line.

First, let's find the slope (change in y divided by the change in x):

[tex]\frac{9-(-5)}{-5-(-7)} =\frac{14}{2} =7[/tex]

Now, let's choose any one of the two points, I'll pick (-5,9), but (-7, -5) also works.

Substitute in the y value (in this case 9) for y1 and substitute the x value (in this case -5) for x1

We can also substitute the slope, m which we know is 7.

y-9=7(x-(-5)

y-9=7(x+5)

Can someone please help me with math.

Answers

Answer:

Step-by-step explanation:

Select all expressions that are equivalent to 2x+3x+8-3x-2.

Answers

Answer:

2x+6 since the +3 and -3x cancel each other out your only left with 2x

Find the distance, c, between (–4, –3) and (2, 1) on the coordinate plane. Round to the nearest tenth if necessary.

Answers

I just need the points sorry

Simplify the ratio : 72:16:32
What is ans

Answers

Answer:

9 : 2 : 4

Step-by-step explanation:

Given

72 : 16 : 32 ( divide each part of the ratio by 8, the LCM of 72, 16, 32 )

= 9 : 2 : 4

I need help ASAP please

Answers

Answer:

It's actually B

Step-by-step explanation:

The measures of the sides are x , x , and x√2 . In a 45°−45°−90° triangle, the length of the hypotenuse is √2 times the length of a leg. To see why this is so, note that by the Converse of the Pythagorean Theorem , these values make the triangle a right triangle.

So x = 4 in this example and the side measures would be 4, 4, and 4√2 which is B

Saraid is dividing 14 pound of cashews into 5 plastic bags. What fraction of a pound of cashews will be in each plastic bag?

Answers

Answer:

Each bag gets 2 4/5 pounds of cashews

Step-by-step explanation:

14 ÷ 5 = 2.8

2.8 ( 2 4/5)

Write 16 exponentially two different ways

Answers

Answer:

2^4 or 4^2

Step-by-step explanation:

2^4= 2x2x2x2=16

4^2= 4x4=16

A loan of$8000 was repaid in 24 equal monthly installments of $400 . The rate of interest on the loan was

Answers

Answer:

Step-by-step explanation:

24(400) = 9600 = total amt paid

9600 - 8000 = 1600 = amt of interest paid

I = PRT T = 2 yr

1600 = 8000(2)R

1600 = 16000R

1600/16000 = 1/10 = .01 = 1%

28 first graders and 12 other students attended a school assembly what percentage of the students at the assembly were first graders

Answers

Answer:

70%

Step-by-step explanation:

Find the total students who attended a school assembly:

28 + 12 = 40

100% = 40 students

1% = 40 ÷ 100 = 0.40

28 ÷ 0.40 = 70

Answer:

70%

Step-by-step explanation:

28+12= 40

28/40= 0.7

0.7x100= 70

Identify whether the representation is a function or not a function.

Function

Not A Function

Answers

Not a function as the numbers on the right can’t be repeated.

A supermarket has a length of 150 feet.the area of the supermarket is 1,350 feet squared.what is the width of the supermarket

Answers

Answer:

1,500

Step-by-step explanation:

Can someone help me on this question

Answers

Answer:

All real numbers such that 37.75 <or= y <or= 40

Step-by-step explanation:

This means that y is greater than or equal to 37.75 but less than or equal 40 and according to the table, that's true.

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