7th grade math help me please :))

7th Grade Math Help Me Please :))

Answers

Answer 1

Answer:

-1/2

Step-by-step explanation:

-6/12

-1/2


Related Questions

.. pls help me....!!!!! Determine whether the point (-2,4) satisfy y<3x+5,y=3x+5 or y >3x+5..​

Answers

Answer:

y < 3x + 5: No

y = 3x + 5: No

y > 3x + 5: Yes

Step-by-step explanation:

You can just put the value of x which is (-2) into each equation to see if the y value would be 4.

y < 3x + 5

y < 3(-2) + 5

y < -6 + 5

4 < -1 (This equation is wrong, so the point does not satisfy this equation)

y = 3x + 5

y = 3(-2) + 5

y = -6 + 5

4 = -1 (This equation is wrong, so the point does not satisfy this equation)

y > 3x + 5

y > 3(-2) + 5

y > -6 + 5

4 > -1 (This equation is correct, so the point does satisfy the equation)

The measures of the angles of a triangle are shown in the figure below. Solve for x

Answers

Answer:

7

Step-by-step explanation:

The angles that we are sure about is 33 and 90. The angles of a triangle add up to 180. 33 + 90 = 123. 180 - 123 = 57. 57 = 7x+8, 49 = 7x, x = 7.

Answer:

x = 7

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Geometry

All angles in a triangle add up to 180°

Step-by-step explanation:

Step 1: Set Up Equation

33° + 90° + (7x + 8)° = 180°

Step 2: Solve for x

Combine like terms:                    7x + 131 = 180Isolate x term:                              7x = 49Isolate x:                                       x = 7

Rae-ko rides her bicycle 35 miles in 2.5 hours. What is her cycling speed in miles per hour?

Answers

Answer:

14

Step-by-step explanation:

35/2.5

Antonio baked 150 muffins. Of all the muffins he baked, 46% of them were blueberry. How many blueberry muffins did Antonio bake?
(NEEDS TO BE ANSWERED TODAY)

Answers

Answer:

69

Step-by-step explanation:

hope this helps :)

Answer:

69!

Step-by-step explanation:

Hope i helpedhave a nice day

Review Guide #3 16-27

Answers

Answer:

-11

Step-by-step explanation:

Ben purchases 2 drinks and a popcorn at the movie theater, for a total of $9.50. If x represents the cost of the drinks and y represents the cost of the popcorn, which equation represents this situation?

Answers

Answer:

x+y=9.50

Step-by-step explanation:

Answer:

y = -2x + 9.5.

Step-by-step explanation:

For Plato

5+3w+3-w combine like terms to simplify

Answers

Answer:

8 + 2w

Step-by-step explanation:

Change all signs to addition (subtraction is the same as adding a negative):

5 + 3w + 3 + -w

Since the expression is now all addition, you can rearrange them in any order. So group the terms together by their type:

5 + 3 + 3w + -w

Simplify:

8 + 2w

Answer: 8 + 2w

Hope this helps! :)

The answer would be 8 + 2w because your combining like terms. You would have to add 5+3 to get 8. And combine 3w-w to get 2w

Find the value of x.
130°
(3x + 5)º

Answers

Answer:

15 = X . hope this helped

Somebody PLZZZZZZZZ help me
five minus two

Answers

Answer: 3

Step-by-step explanation:

5 - 2 = 3

Example: 5 apples take away 2 apples equals 3

Bob and Alice have designed and created a website for their high school. The first week they had 5 visitors to the site; the second week, they had 10 visitors; and during the third week, they had 20 visitors. If the trend continues, how many visitors can they expect in the fifth week? Explain your answer.

Answers

Answer:

80 visitors

Step-by-step explanation:

From the above question, we can see that:

The trend is explained using geometric sequence

The formula for Geometric sequence is given as:

an = ar ^n - 1

Where a = first term

r = common ratio

n = number of terms

an = nth term

From the above question, let the number of term be equal to the number of weeks.

First week = First term = 5

Second week = Second term = 10

Third week = Third term = 20

Common ratio = a2/a1 = a3/a2 = 10/5 = 20/10 = 2

We are to find the number of visitors for the Fifth week = fifth term,

Hence:

a5 = 5 × 2^5 - 1

a5 = 5 × 2^4

a5 = 80 visitors

The number of visitors we can expect for the fifth week = 80 visitors

The perimeter of the rectangle below is 54 units. What is the value of x?

Answers

Answer:

x has a value of 14.

Step-by-step explanation:

In addition to the information provided in the question, we are also told that the rectangle has a length x+1 and a width x-4.  This is all we need to know.

To work this out, we simply need to plug those numbers into the equation for the perimeter of a rectangle.  That would be p = 2l + 2w, where p is perimeter, l is length, and w is width.

We know that the resulting area (p) is equal to 54 units.  We are also given variable values for the length and width.  With that we can simply plug them into that equation and solve it for x:

[tex]p = 2l + 2w[/tex]

[tex]54 = 2(x + 1) + 2(x - 4)[/tex]

[tex]54 = 2x + 2 + 2x - 4[/tex]

[tex]54 = 4x - 2[/tex]

[tex]56 = 4x[/tex]

[tex]x = 56 / 4[/tex]

[tex]x = 14[/tex]

A migrating bird flies 378 miles in 14 hours. How many miles does it fly in 3 ​hours?

Answers

Answer:

81 miles

Step-by-step explanation:

378/14=27

The unit rate is 27 miles per hour

27*3 = 81

8 1/4 divided by 3/8

Answers

Answer:

11over32

Step-by-step explanation:

What is the answer??

Answers

the answer is c, -2.

If it's not correct I'm sorry but I'm 98% sure its correct

Answer: C. The slope is -2

The management of Asteria Inc. is studying the financial reports and statements of the company for the current accounting period. Which accounting head is a part of an off-balance-sheet item?

Answers

Answer:

What are the answers again??

Step-by-step explanation:

PLS HELP I WILL GIVE U 30 POINTS !!!!!!!

Answers

please post another picture this one is rlly blurry and i cant see ugh and i think i know how to do this

2x + y = -3
What’s the solution?

Answers

y= -3 - 2x because all you have to do is move the 2x over to have an x and a y on different sides, and in order to do that you do the opposite so since it is a positive 2, you subtract it and make it negative

Answer:

The slope is, -4.000/-2.000 which = 2.000

Step-by-step explanation:

Brain-List?

What is (x+3)+(2xx+-5

Answers

Ummm, here. 6x^2 - 15x I hope you got a good score!

pls help , I’ll give you brainly

Answers

Answer:

your answer is C

Step-by-step explanation:

i took the quiz, may i have brainliest please!  :D

PLS ANSWER I DO NOT HAVE A LOT OF TIME ANSWERING THIS IS THE ONLY WAY I CAN PASS


Write an Inequality and choose the correct graph of the solution. Graph by placing the correct inequality on the line.


The cost of renting a car is $25 per day plus a one-time fee of $75.50 for insurance. How many days can the car be


rented if the total cost is to be no more than $525?

Answers

Answer:

the second choice 25x+75.50<525

75.50 + 25x < 525

The car can be rented for 17 days.

On the line you will have a lone pointing to the left with an open circle on 17.

75.50 + 25x < 525

25x < 525 - 75.50

25x < 449.50

x < 449.50/25

x < 17.98

Which phrase best represents the following?
n
_ =7
5

Answers

Hey there!

“ n/5 = 7 ”

Usually whenever you have a letter value in mathematics it’s understood as a(n) UNKNOWN value; people label them as a invisible 1

~ FIRST: you have to MULTIPLY both of your SIDES by 5

1n/5 • 5 = 7 • 5

~ CANCEL out; 1/5 • 5 because that gives you a 1
~KEEP: 7 • 5 because it gives the value of your “n”

New equation: n = 7 • 5

7 • 5 = 35

Answer: n = 35 ☑️

Regular division problem: 35/5 = 7 so this makes it true!

Random fact; math actually repeats a lot.. so it can become easier for you to understand or tackle problems like this on your own!

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

What is the solution to the linear equation?

Answers

The answer is p=1

First you have to subtract 2/5 on both sides to get p=2/5x+3/5p.

Then subtract 3/5p on both sides to get 2/5p=2/5.

Then you divide by 2/5 on both sides to isolate p and you get 1 :)

What is the solution of 6 = x-2/4?

Answers

Answer: x=13/2

Step-by-step explanation: hope this helps!

PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELP SHOW YOUR WORKKKKKKKKKKK PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ


Solve the inequality below.

Answers

Answer:

6.8

Step-by-step explanation:

In order to do this equation you must find out what -6/5u+8 is which has to equal greater than -10.

-6/5 as a decimal is -1.2

-1.2+8= 6.8

So it is 6.8>-10

Find the area and the circumference of a circle with Diameter 6 yd . Use the value 3.14 for pi , and do not round your answers .

Answers

Step-by-step explanation:

i hope this helps its kind of hard to see but i tried lol

Ill make you brainlist write in y=mx+b form

Answers

Answer:

y = [tex]\frac{2}{5}[/tex] x + 2

Step-by-step explanation:

Graph below.

Answer:

y = 2/5x + 2

Step-by-step explanation:

y = mx + b

First, we find out the slope. The slope is the change in y over the change in x.

The change in y is the second y-value subtracted from the first. The first y-value is 0 and the second is 2.

0 - 2 = -2

The change in x is the second x-value subtracted from the first. The first x-value is -5 and the second is 0.

-5 - 0 = -5

The slope is the change in y over the change in x.

-2/-5 = 2/5

y = 2/5x + b

b is the y-intercept, which is the value of y when x = 0.

When x = 0, y = 2 (0,2), so b = 2.

y = 2/5x + 2

Hope this helps!

A pyramid is made above a cuboid with measure 90cm×50cm×225cm. If the height of the pyramid including cuboid is 240cm, find the total volume.​

Answers

Answer: whatever do I care

Step-by-step explanation: I don’t care

The required volume of the pyramid is, 22500 cubic cm.

What is volume?

Volume is referred to as the area occupied within an object's three-dimensional space.

Given that,

The length of cuboid = 90 cm

Width of cuboid = 50 cm

And height of cuboid = 225 cm

Let the height of the pyramid is x cm

Since the height of cuboid and pyramid = 240 cm

⇒ 225 + x = 240

⇒ x = 15 cm

Since the base of pyramid will be the same as the base of cuboid,

The volume of pyramid = 1/3 x base area x height

                                       = 1/3 x 90 x 50 x 15

                                       = 22500

The volume of the pyramid is 22500 cubic cm.

To know more about Volume on:

https://brainly.com/question/1578538

#SPJ2

What is the value of 1/4 - 7/8

Answers

Make them common denominator
2/8 - 7/8 = -5/8
Solution: -5/8

Please Help With all 3! Will Give 100 Points + Brainliest!

Answers

Answer: I don't see anything. Maybe upload some images?

Step-by-step explanation:

Drag the tiles to the correct boxes to complete the pairs.

Match each graph with a description of its correlation.

Tiles:
modest negative correlation
weak negative correlation
perfect negative correlation
modest positive correlation
strong positive correlation.

Answers

Answer:

Graph 1: perfect negative correlation

Graph 2: modest negative correlation

Graph 3: modest positive correlation

Graph 4: strong positive correlation

Graph 5. weak negative correlation

Step-by-step explanation:

If i'm wrong PLEASE correct me

The graph first is perfect negative correlation, graph second is the modest negative correlation.

What is correlation?

It is defined as the relation between two variables which is a quantitative type and gives an idea about the direction of these two variables.

[tex]\rm r = \dfrac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{{[n\sum x^2- (\sum x)^2]}}\sqrt{[n\sum y^2- (\sum y)^2]}}[/tex]

As we know, the coefficient of correlation varies between -1 and +1.

If r = +1 (means the relation between the variable is strong and positive)

If r = -1 (means the relation between the variable is strong but negative)

As we can see in the graph, the line goes down represents the negative correlation and the line goes up represents the positive correlation.

So, we can say:

The first graph is perfect negative correlation.

The second graph is modest negative correlation.

The third graph is modest positive correlation.

The fourth graph is strong positive correlation.

The fifth graph is weak negative correlation.

Thus, the graph first is perfect negative correlation, graph second is the modest negative correlation.

 

Learn more about the correlation here:

brainly.com/question/11705632

#SPJ5

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