Mathematics High School

Help!!!!!!!! someone give me the correct answer to this question.
I will mark you brainliest for the correct answer.

This is a big test.

Please help!!!

Help!!!!!!!! Someone Give Me The Correct Answer To This Question.I Will Mark You Brainliest For The Correct

Answers

Answer 1

Answer:

20

Steps:

x + (x+5) + (7x-5) = 180

x + x + 5 + 7x - 5 = 180

2x + 5 + 7x - 5 = 180

9x + 5 - 5 = 180

9x = 180

x = 180/9

x = 20

Related Questions

Let f(x) = 8x3 + 16x2 − 15 and g(x) = 2x + 1. Find f of x over g of x.


A) 4 times x squared plus 6 times x minus 3 plus 12 over the quantity 2 times x plus 1

B) 4 times x squared plus 6 times x plus 3 plus 12 over the quantity 2 times x plus 1

C) 4 times x squared plus 6 times x minus 3 minus 12 over the quantity 2 times x plus 1

D) 4 times x squared plus 6 times x plus 3 minus 12 over the quantity 2 times x plus 1


Thanks :')

Answers

Answer:

I think the answer is C. Its not B or D though

Step-by-step explanation:

Can someone please help me in this one??

Answers

The correct answer is a. In the left-hand column, each number goes up by one. In the right hand column, each number goes up by 1120. Each number on the left can be multiplied by 1120 to get the number on the right.

A typical hour of prime-time television shows
three to five violent acts. Linking family
interviews and police records shows a clear
association between time spent watching TV as a
child and later aggressive behavior. This is an
example of:
A. An Observational Study
B. A Controlled Experiment
C. A Survey

Answers

Answer:

I think it is A. An Observational Study

Step-by-step explanation:

I think it is this because if you are watching something with interviews and stuff like that, it seems like it would be an observation. If I'm wrong, I am SOOOO sorry this just feels like the right answer.

I think it would be A. an observational study. It tells what a typical hour of watching prime time TV & the effects it will have on a family in general.

pls helpp, due in 5 mins !!

Answers

Slope is 1/2
Slope = rise/run
Rise = 1 and run = 2
Therefore the slope is 1/2

please help i cant seem to figure this out

Answers

Answer:

117649

Step-by-step explanation:

7 to the power of 2 is 49 then bc its in () do 49 to the power of 3 = 117649

An urn contains four red marbles, and five blue marbles. What is the probability of selecting at random, without replacement, two red marbles?

A. 16/72
B. 20/72
C. 12/72
D. 20/81

Answers

Answer: C. 12/72

Step-by-step explanation: 4/9 (the total of red marbles out of the urn) times 3/8 ( the probability of picking a red marble and how many marbles would be left) = 12/72

Btw I need help answering the rest of the questions if you don’t mind sliding the answers!

Use Substitution to solve the following System of Equations.
y = 2x - 4
y= 12 +3

Answers

Answer:

x = 9.5

this should be the right answer if the same one you had to solve.

Step-by-step explanation:

y = 2x - 4

y = 12 + 3                             combine them

2x - 4 = 12 + 3

    +4         +4                   The 4's cancel each other out

2x = 12 + 7                     Add then divide

 2x = 19

  2x = 19

  ----   ----

   19   19

 x = 9.5

y=5 4x-y=7 substitution method

Answers

Answer:

Use photo math. It will explain the steps even in substitution method

. Jumbo bought 5 books, each with a whole-number price.
The mean price of the books was $10. The median price was $8.
The most expensive book cost $15 and the cheapest cost $6.
What are the possible prices for the other books?

Answers

Mean is average. Multiply total books by the mean to find the total cost:

5x 10 = $50 total.

Subtract the highest and lowest prices to find the total of the remaining 3 books.

50 - 15-6 = 29

The median price was 8, this is the middle number, subtract 8 from 29 to get the cost of the last 2 books:

29-8 =21

Now you need a price lower than the median but higher than the lowest cost so that has to be 7

Subtract 7 from 21 to get the cost of the last book 21-7 = 14

The price of the remaining books is $7 and $14

Martin painted 255 square feet of this
kitchen wall with į gallon of paint. If
he continues coverage at the same
rate, how many square feet can he
cover with 2 gallons of paint?
A 765 ft2
B 510 ft2
© 382.5 ft2
D 1,020 ft

Answers

Answer:

i dont know

Step-by-step explanation:

50 points will give BRAINLIEST ASAP
Graph the function
f (x) = 3√x−2

Answers

Answer:

use DESMOS it helps you alot

Step-by-step explanation:

A rubber ball is thrown against the pavement and bounces into the air. If the ball is airborne for 2.5 seconds, how long after it bounces upward does the ball reach its maximum height?

Answers

Answer:

Step-by-step explanation:

1/2 * 2.5

= 1.25 seconds

Help please :) with question 4 and 5 don’t mind the selected one i don’t know the answer to that one either

Answers

Answer:

8*f and the difference between 15 and m

Step-by-step explanation:

Help me find x for the triangle!!!

Answers

Answer:

i hope it help u

Step-by-step explanation:

x=180-(85+63)

x=180-148

x=32

two vertical poles of heights 12 inches and 22 inches are separated by a horizontal distance of 24 inches. what will be the distance between the tops of these poles?

Answers

Answer: 26 in.

Step-by-step explanation:

Given

Heights of Poles are [tex]12\ in., 22\ in.[/tex]

distance between them is [tex]x=24\ in.[/tex]

the difference in heights of the pole is [tex]y=22-12=10\ in.[/tex]

From the figure, using Pythagoras theorem, distance L is given by  

[tex]\Rightarrow L^2=y^2+x^2\\\Rightarrow L^2=10^2+24^2\\\Rightarrow L^2=100+576=676\\\Rightarrow L=\sqrt{676}=26\ in.[/tex]

The distance between tops is 26 in.

Bailey made risotto using a recipe that called for 223 cups of liquid. Bailey added 23 cup of liquid to the risotto every 10 minutes. Drag and drop to complete the equation to find how many times Bailey added 23 cup of liquid.

Answers

Answer:

4 times

Step-by-step explanation:

Given that :

Cups of liquid required = 2 2/3

Fraction of liquid cup added per 10 minutes = 2/3

The number of times 2/3 cups of liquid is added :

Total cups of liquid required / amount of liquid added at a time

2 2/3 ÷ 2/3

8/3 ÷ 2/3

8/3 * 3/2

24 / 6

= 4 times

3) What is the equation of a line perpendicular to the line y = -1/5 x + 3 and going
through the point (4,-1). Please write your answer in point slope form. *

Answers


y+1=5(x-4) is the answer

An architect's scale drawing of a new school is 8.4 inches long. The scale used in the drawing is 2 inches = 8 feet.

What is the actual length, in feet, of the school?

Answers

Answer:

33.6f eet

Step-by-step explanation:

if

2=8 then

8.4x8= 67.2/2= 33.6 feet

betty bucket has 49000 clovers and Clover has 569000 clover how many do they have in all?



















can some people be my friend

Answers

Answer:

618000

Step-by-step explanation:

just add

A chef plaining for a large banquaet think that 2 out of every 5 dinner guests will order his soup appetizer he expects 800 guests at the banquat use equvilent ratios to estimate how many cups of soup he should prepare

Answers

Answer:

I think 80

Step-by-step explanation:

2*5=10

800/10 = 80

80 soups

320 people would order so im not sure how many cups each person would eat but if each person eats one cup of soup then it should be 320 cups

The radius of the circle is given in meters. What is the circumference of the circle? Use
3.14 for a pi

Answers

Answer:

50.24 meters

Step-by-step explanation:

The equation for the circumference of a circle: 2πr

2 x 3.14 x 8 = 50.24

Use place value . Multiplication with powers of 10, or equivalent fractions to explain what is happening mathematically to the decimal points in the divisor and dividend before dividing.

Answers

Answer:

The answer is "7.036".

Step-by-step explanation:

Throughout the question by Increasing the number of standard deviations by 100 if you compose its issue as a fracture. In each cycle these were multiplied by 100, all numbers were certain ones. [tex]\frac{436.8}{62.08}[/tex] was its sum of [tex]\frac{43,680}{6,208}[/tex].

Following are the calculation to this question:

[tex]= \frac{436.8 \times 100}{62.08 \times 100}\\\\ = \frac{43680}{6208}\\\\=7.036[/tex]

What percent of 369 is 26

Answers

Answer:

7.046%

Step-by-step explanation:

100%/x=369/26

100/x×x=(369/26)×x

100=14.19231×x

100/14.192=7.046

Change 3.7 hours into hours and minutes

Answers

Answer:

222 minuets

Step-by-step explanation:

Find the value of x in the triangle shown below.
X°
125°
21°

Answers

Answer: x= 34

Step-by-step explanation:

ILL GIVE BRAINLY PLEASE HELP

Answers

Answer:

x=3

Step-by-step explanation:

Figure ABCD is a rectangle. In rectangles, opposite sides are equal. In the figure, BC and AD are opposite of each other, therefore their side lengths are equal. The side lengths are given: BC=9x-6, and AD=3x+12. Write this as an equation:

9x-6=3x+129x-3x-6=3x-3x+12 (Subtract 3x from each side of the equation)6x-6=12 6x-6+6=12+6 (Add 6 to each side of the equation)6x=18x=3 (Divide each side by 6)

please let me know if this is wrong, hope it helps :)

Emelia is booking a flight to San Francisco. The airline charges 5270 for the ticket and 16% for taxes and fees. How much will Emelia pay for her flight?
(show your work)

Answers

ANSWER:
$6113.20


EXPLANATION:
There is two ways to make an expression to solve this which is
y = 1.16x
or
y = x + 0.16x

Here is the explanation for the first expression, it is more thorough:

The airline makes her pay x amount in dollars for the ticket alone. Then, the airline charges an additional 16% of that x amount. Just a policy they’ve required.
Therefore:
y = x + 0.16x

• x is the ticket price
• 0.16x is 16% of that ticket price

Plug x with the initial charge amount:
y = 5270 + 0.16(5270)
y = 6113.20



10% of 5270 = $527
5% of 5270 = $263.50
1% of 5270 = $52.70
6% of 5270= $316.20
16% of 5270 = $843.20

$843.20 + $5270 = $6113.20
^ answer


sorry if it’s long lol i wanted to break it down as much as possible

Solve: Elizabeth is 4.5 feet tall. Her mother is 1.2 times as tall. How tall is Elizabeth’s mother?

Answers

Answer:

her mother is 5.4 feet tall

If her mother is 1.2 times as tall, then you need to multiply elizabeth's height by how much taller her mother is.

4.5x1.2=5.4

---

hope it helps

Chloe makes beaded keychains to sell at local craft fairs. To make k keychains, she uses 15k beads. On Saturday, Chloe made 50 beaded keychains. How many beads did Chloe use to make the keychains?

Answers

Answer:

750 beads

Step-by-step explanation: you multiply 15,000 by 50, then removing the 3 extra zeros

Answer:

750

Step-by-step explanation:

What is the greatest common factor of 3x² + 6x +9?

Answers

Answer:3~To find the GCF, first, find the prime factors of each term in order to find the greatest common factor (GCF).3~

Hope you have a good day, Loves!

Also if I'm right can you let me know, please?

Also Also if I am right can I please have Brainliest??

You don't need to, I'm just glad I could help. ^^

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