Mathematics High School

20% of the 7th grade students say that math is their favorite subject. If 45 students said math is their favorite subject, how many students are in 7th grade

Answers

Answer 1
225 students should be in the 7th grade

Related Questions

15j + 12k = 18
5j + 4k = 6

Answers

Using substitution or elimination?

1. multiply the first or second equation by a number that will make one variable 0
For example; if you multiply the bottom equation by “-3”, it will be “-15j-12k=-18”

2. add the two equations together
It will be 15j-15j which equals 0. Additionally, 12k-12k=0. And, 18-18=0

This means that you have 0=0. When this happens, you have infinitely many solutions. Your teacher may only want you to put infinitely many, or they may want you to solve in terms of one of the variables. If it is the latter, let me know and I will help with that.

10.
An 8-by-10-inch photograph was blown up into a poster. If the longer side of the poster is 55 inches long, how many inches long is the shorter side?

please i need help

Answers

Answer:

44

Step-by-step explanation:

is times 5.5

Please show work. Cant even explain how much i hate mathematics

Answers

no pic?????????????????????????

Answer:

there is no attachment

Step-by-step explanation:

A line passes through the point A (-2,-5) and has a slope of -9. Using the point-Slope formula, express the equation of the line in slope intercept form.

Answers

Answer:

y = -9x -23

Step-by-step explanation:

Point-slope formula gives you

y -(-5) = -9(x - (-2))

y + 5 = -9(x + 2)

y + 5 = -9x - 18

y = -9x -23

2x + y = 5
4x + 2y = 0
Elimination

Answers

there is no solution

a customer left a tip of 25$ this is 20% of his bill. whats the price of the bill?

Answers

Answer:

i think 150

Step-by-step explanation:

Answer:  $30.00

Step-by-step explanation:

First, convert the 20% to an actual number that can be used in a calculation. For percents, this is always done by simply dividing the percent (in this case 20%) by 100%.So, the conversational term "20%" becomes 20% / 100% = 0.20 in terms of a real mathematical number.

0.20 x $25.00=$5.00.

$25.00 + $5.00 = $30.00.

A pattern maker earns $25 per hour. She has monthly business expenses of $300. Her profit is the difference between
her monthly earnings and her monthly business expenses. How many hours will the pattern maker have to work in a month to make a profit
of at least $2,000?
оооо
a) 92
b) 100
c) 108
d) 121

Answers

Answer:

i think the answer is a.92 hope this helps

50 POINTS

Solve the system of equations using the system of elimination
2x-7y=-13
8x-7y=11

Answers

This is the answer (4,3) x=4, y=3

Answer:

-24

Step-by-step explanation:

Target pays a clothing company $12.00 for each tee shirt it buys. Target then sells each tee shirt to its own customers at a mark up rate of 25%. For how much does target sell each shirt?

Answers

Answer:

$15.00

Step-by-step explanation:

Multiply the original cost by 1.25 to represent the mark up rate.

Angad was thinking of a number. Angad divides by 4, then adds 3 to get an answer of 7. What was the original number?

Answers

Answer:

mh, 7

Step-by-step explanation:

In the figure MN is a midsegment of JKL. Find the value of X

Answers

Answer:

x = 9

Step-by-step explanation:

Here, we want to find the value of x

To do this, we are going to use the similar triangles principle

When two triangles are similar, the ratio of their corresponding sides are the same

The two similar triangles we shall be using are;

LMN and LJK

Thus, we have it that;

x/8.5 = x+ 9/17

17x = 8.5(x + 9)

17x = 8.5x + 76.5

17x - 8.5x = 76.5

8.5x = 76.5

x = 76.5/8.5

x = 9

alex practice playing the piano for two and a half hours each wee if alex practice for a total of 35 hours how long did he practice

Answers

Answer:

what is a wee?

Step-by-step explanation:

What is the exact value of sine of 8 pie/3

Answers

Answer:

0.1456858

Step-by-step explanation:

Hope it help

Answer:

−1/2

Explanation:

cos(8π/3)

=cos(8π/3 − 2π)

=cos(2π/3) = − cos (π/3) = −1/2

-240+370=
what is the sum

Answers

Answer:

it would be the same as 370-240 which equals 130

Step-by-step explanation:

Answer:

130

Step-by-step explanation:

give me brainliest  (aka the crown) :)

I need help with my math assignment​

Answers

Answer:

Step-by-step explanation:

Slope m is defined as m=(y2-y1)/(x2-x1) in this case

m=(218-155)/(22-15)=63/7=9

y=mx+b

y=9x+b, using point (15,155) we can solve for the y intercept b

155=9(15)+b

155=135+b, b=20 so the line is

y=9x+20

In thirty days there will be

y=9(30)+20=290 coins

What are the zeros of the function below? Check all that apply.
F(X) =(x + 3)(x - 1)/(x-2)(x + 2)
A. 2
B. -2
C. 3
D. -3
E. 1
F. -5

Answers

Answer:

-3 and 1

Step-by-step explanation:

The zeros of the given function are -3 and 1.

What are zeros of a function?

The zeros of a function, also referred to as roots or x-intercepts, are the x-values at which the value of the function is 0 (f (x) = 0). The zeros of a function can be thought of as the input values that result in an output of 0.

Given is a function f(x) = (x + 3)(x - 1)/(x-2)(x + 2),

We need to find the zeros of the function,

Equate to 0,

(x + 3)(x - 1)/(x-2)(x + 2) = 0

Therefore,

(x + 3)(x - 1) = 0

x+3 = 0 and x-1 = 0

Therefore,

x = -3, x = 1

Hence, the zeros of the given function are -3 and 1.

Learn more about zeros of the function, click;

https://brainly.com/question/16633170

#SPJ7

What do I do 900m = 2.700​

Answers

Step-by-step explanation:

given

900m = 2.700

m = 2.700 / 900

m = 0.003

Hope it will help :)

HELP ASAPPPPPPPP!!!!

Answers

Answer: x8

Step-by-step explanation:

Lilly opens an account with $60. Each week she deposits $12. Write an expression to show the amount she has after w weeks.

Answers

Answer:

5 weeks

Step-by-step explanation:

so if Lily has $60 and takes out (subtracts) 12 a week then it would look like this

    TOTAL STARTED WITH       EACH WEEK

          $60                  -12              48

         $48               -     -12           36

         $36                      -12          24

           $24                  -12          12

          $12                   -12           0

SO Lily will have enough money to deposit for 5 weeks

Can somebody help me?

Answers

A percentage
Have a good dayyyyyy

An eagle 300 feet in the air spots its prey on the ground. The angle of depression to its prey is 25 degrees. What is the straight-line distance from the eagle to its prey? Round to the nearest foot.

Answers

Answer:

no se quisiera saber pero la verdad no se

how do I find the perimeter of a triangle​

Answers

Answer:

Step-by-step explanation:

Add up all three side lengths

Answer:

Add up all the side lengths (3) of the triangle.

Step-by-step explanation:

Find the slope of the line that passes through these two points:
(-12, -1) and (-3,-4)

Answers

-1/3 is the slope of the line

If you left $25.00 on your table for a $21.50 meal, what was the percent of the tip?

Answers

Answer: 3.5% with a 3.50 Tip

Reason: 25.00 - 21.50 = 3.50

3.5 percent tip.$3’aidlag

HELP ME ITS DUE IN 30 MINS

Answers

Step-by-step explanation:

honestly man i dont know how to help

F10
Find the gradient of the line segment between the points (-2,-2) and (0,-6).
2

Answers

Answer:

-2

Step-by-step explanation:

M = (y - yo/x - xo)

(-6 + 2) / (0 + 2)

-4 / -2

= - 2

A shirt originally cost $38.48, but it is on sale for $26.94. What is the percentage decrease of the price of the shirt? If necessary
round to the nearest percent.
A. 70%
B. 24%
C. 43%
D. 30%

Answers

Answer:

30(D)

Step-by-step explanation:

38.48-26.94=11.54

11.54÷38.48×100

≈30

Which of the following is a solution to the equation 4 sin (x) - 2 = -4?
0 degrees and 180 degrees
270 degrees
210 degrees and 330 degrees
30 degrees and 150 degrees

Answers

Answer:

3 rd one

Step-by-step explanation:

someone help me pls​

Answers

1. 3m^-4-3
2. 3m^-7
3. 3*(1/m^7)
4. 3/m^7 (final answer)

In the figure below, UX and UV are tangent to the circle centered at 0. The segment XV passes through the center of the
circle. Given that UX= 15.7 and XV = 8.5, find XW.
Help

Answers

Answer:

2.5

Step-by-step explanation:

The computation of the XW is shown below

As triangle UVX is a right angle

So

VU^2 = XU^2 - VX^2

VU^2 = 15.7^2 - 8.5^2

VU^2 = 246.49 - 72.25

VU^2 = 174.24

VU = 13.2

As VU = WX because of same point tangent

NOw XW is

= UX - UW

= 15.7 - 13.2

= 2.5

Other Questions
58.5 divided by 157.95 An EKG technician observes ST segment depression and T wave inversion in multiple leads on a patient's EKG tracing. Which of the following should the technician suspect? 10 POINTS HELP ASAP!!! what economy is the recent stage of development that uae stands on Please answer these questions! Thank you! Pick two ways the theme of fisher on top of the world and fisher trip down under are different Question 10What should I do if I cannot pay off my credit card bill in full? Choose the correctanswer:A. I should skip the payment and pay it in full next month.OB. I should not worry about it. I can pay it in full next month.I should at least make the minimum payment, but should make the biggestC.payment I can afford.D. I should talk to a loan shark and borrow the money until the next pay day. Identify the scale that is used at letter F Help will give brainlest is this linear or non linear?x. 0,2,4,6y. 2,6,18,38 What does a scientist need to know to figure out the relative age of a rock layer?A. the age of the layers above and below the rockB. the age of the fossils of the top layerC. the rate of decay for all elements in the rockD. the radioactive element in the rock write half of a page...Describe how does A,H,K affect X^2? A supermarket is having its grand opening on Saturday morning. Every fifthcustomer will receive a $10 coupon for a free turkey. Every seventh customerofwill receive a $3 coupon for 2 gallons of ice cream. You are the manager ofthe store and you expect 400 customers. How many of each type couponshould you plan to give away? so the question on the pic what do the three dots : . seen in equations/proof mean What impact does antisemitism have on others? After exploring the different biomes, which biome would you most like to live in?Why? (GIVING BRAINLIEST!!)Read the passage.Rowan wanted to have a yardwork business one day. He wanted to gain experience, so he asked his neighbors if he could help them garden. His mother always taught him that from little acorns, large trees grow.Which of the following options best describes the meaning of the proverb or adage from little acorns, large trees grow as it is used in the passage?A) Do not act until you have considered the consequences.B) Helping others will bring you great happiness and satisfaction.C) Working on something small now can lead to big things later.D) You need to plant seeds first in order for trees to grow big. Mathilde had a rich friend years ago, they had attended school together. Mathilde had a rich friend; years ago, they had attended school together. Is this right???? Using a Semicolon? help please for 20 points!