Mathematics High School

I need help with this problem

Answers

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

A) (4,8) is the correct answer.

Step-by-step explanation:

Step: Solvey=2xfor y:

y=2x

Step: Substitute2xforyiny=x+4:

y=x+4

2x=x+4

2x+−x=x+4+−x(Add -x to both sides)

x=4

Step: Substitute4forxiny=2x:

y=2x

y=(2)(4)

y=8(Simplify both sides of the equation)

Hope this helps!

Related Questions

A television channel broadcasts a baseball game every day. Yesterday's broadcast showed the game for 2 5/6 hours and commercials for 2/3 hour. At this rate, how many hours does the television channel show a game for every hour it shows commercials during its broadcasts?

Answers

Answer:

4.25 hours

Step-by-step explanation:

Given that :

Game broadcast time = 2 5/6 hours = 17/6 hours

Commercials time = 2/3 hours

2/3 hours of commercials = 17/6 of game broadcast

1 hour of commercials = x hours of game broadcast

Cross multiply ;

(2/3)x = 17/6

2x * 6 = 17 * 3

12x = 51

x = 51 / 12

x = 4.25

For every hour it shows commercials, game is broadcasted for 4.25 hours

A random sample of 40 seniors reveals that 10% of those sampled have assigned parking spaces in the high
school's main lot. This is surprising because, according to the main office of a large high school, 45% of seniors
have assigned parking spaces in the high school's main lot. Which of the following statements is true?
10% is a statistic and 45% is a statistic.
10% is a statistic and 45% is a parameter.
10% is a parameter and 45% is a statistic.
10% is a parameter and 45% is a parameter.

Answers

B. 10% is a statistic and 45% is a parameter.

Find the discriminant. (Must Show Work)

-9m^2+m-7=0

Answers

Answer:

-251

Step-by-step explanation:

the discriminant .b^2-4ac

=1-4×(-9)×(-7)

=1-252=-251

12 workers can do a peice of work in 20 days. How many workers should be added to complete work in 16 days?

Answers

3 workers

if 12 workers can do a piece of work in 20 days, then one person can do it in 240 days. 240/16 is 15. That is the number of workers that you need in total to it in 16 days. Since the question ask how many more workers,
15 - 12 = 3 more workers.

0/1 For positive integer n, n? = n! · (n − 1)! · … · 1! And n# = n? · (n − 1)? · … · 1?. What is the value of 4# · 3# · 2# · 1#?

Answers

Answer:

331776

Step-by-step explanation:

Since n? = n! · (n − 1)! · … · 1! And n# = n? · (n − 1)? · … · 1?

Then 4# = 4? · (4 − 1)? · (4 − 2)?· 1?

= 4? · 3? · 2?· 1?

Now, n? = n! · (n − 1)! · … · 1!

So, 4? = 4! · (4 − 1)! · (4 − 2)! · 1! = 4! · 3! · 2! · 1! = 288

Thus, 3? = 3! · (3 − 1)! · 1! = 3! · 2! · 1! = 12

Also, 2? = 2! · (2 − 1)! · 1! = 2! · 1! · 1! = 2

and 1? = 1! · (1 − 1)! · 1! = 1! · 0! · 1! = 1

So, 4# = 4? · 3? · 2?· 1? = 288 × 12 × 2 × 1 = 6912

We now find 3#

3# = 3? · (3 − 1)? · 1? = 3? · 2?· 1?

Now, n? = n! · (n − 1)! · … · 1!

So, 3? = 3! · (3 − 1)! · 1! = 3! · 2! · 1! = 12

Thus, 2? = 2! · (2 − 1)! · 1! = 2! · 1! · 1! = 2

and, 1? = 1! · (1 − 1)! · 1! = 1! · 0! · 1! = 1

So, 3# = 3? · 2?· 1? = 12 × 2 × 1 = 24

We now find 2#

2# = 2? · (2 − 1)? · 1? = 2? · 1?· 1?

Now, n? = n! · (n − 1)! · … · 1!

So, 2? = 2! · (2 − 1)! · 1! = 2! · 1! · 1! = 2

1? = 1! · (1 − 1)! · 1! = 1! · 0! · 1! = 1

So, 2# = 2?· 1? = 2 × 1 = 2

We now find 1#

1# = 1? · 1? = 1? · 1?

Now, n? = n! · (n − 1)! · … · 1!

So, 1? = 1! · (1 − 1)! · 1! = 1! · 0! · 1! = 1

And, 1# = 1? · 1? = 1 × 1 = 1

So, 4# · 3# · 2# · 1#? = 6912 · 24 · 2 · 1? = 331776

I need help with this question
Solve for the value of P: 2/3 P = 4

Answers

P=6
Expiation:
Fractions are just division
So you will use pemdas
You will multiply 3 on both side, which cancels out the 3
4*3=12

Now you have 2p=12
Divide the 2 on both sides

12/2 = 6

Therefore, P=6

Answer:

thisis answer okkkkkkk

factor the expression pls! 35-40x

Answers

Answer:

5(7-8x)

Step-by-step explanation:

Answer:

it will be 5 (7 - 8x)

Step-by-step explanation:

5 times 7 is 35 and 5 times 8 is 40

HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP

Answers

C. The initial amount of money in the account

Answer:

Step-by-step explanation:

250 represent the amount of money that they started off with

1.05 represent how much the money in the account is increasing by

and x represent the amount of months that have passed

Add. (6x2 – 2x) + (5x – 7)

Answers

Answer:

Thats going to be 12x

Step-by-step explanation:

GIVING BRAINIEST IF CORRECT!!

Amanda slept for 1/3 of the day. She played with her friends for 1/5 of the day. She spent the rest of the day working on a school project. What fraction of the day did she spend working on her project?

Answers

Answer:

She spent 7/15 of the day working on her project.

Step-by-step explanation:

Well we cant get a clear answer with the fractions 1/3 and 1/5, so we are going to have to turn them into equivalent fractions.

3 and 5 both have 15 LCD so:

1/3 x 5/5 = 5/15

1/5 x 3/3 = 3/15

5/15 + 3/15 = 8/15

15/15 - 8/15 = 7/15

She spent 7/15 of the day working on her project.

Hopefully this helps :3 Sorry if wrong :( Plz mark brainiest if correct :D Your bootiful/handsome! Have a great day luv <3

-Bee~

Help me with this!!!!!

Answers

Answer: GH=16

Step-by-step explanation:

Equal triangles have equal sides

DUE ASAP PLS
HELP

5. Find BC.
5. In Triangle ABC, angle A is a right angle and angle B= 60. If AB= 20 ft, find BC. If necessary, round your answer to the
nearest tenth.
A) 10ft
B) 40ft
C) 20 √ 3 ft
D) 40 √ 3/3 ft

Answers

I think it’s 40 foot

18 entre 12 (división) Porfa respondan, mi ama me pega con la chancla si no lo hago,, es lo único que me faltam

Answers

Answer:

Step-by-step explanation:

18 dividido por 12 es 1.5 , esto se puede probar haciendo division larga o multiplicando 1.5 por 12

1.5 * 12 = 18

Espero que te haya ayudado la respuesta y que ahores el chancletazo.

6
7
8
9
10
What is the simplified form of the following expression?
7(V2x) - 3(V16x)-3(Vox
0 -5(2x)
o 2x-6(K)
0 -(/2X) - 6(V)

Answers

Answer:

is there a pic u could show?

Step-by-step explanation:

everyday marco puts $0.25 into a jar for savings. one day he counted his money and found he had $91.75. how many days had he been saving?

Answers

Answer:

Marco had been saving for 367 days.

Step-by-step explanation:

If Marco started with no money and put $0.25 into a jar a day, then you just have to divide the total amount of money he has by 0.25.

91.75/.25 = 367

10 points
8. Sally works at a furniture store. She earns $420 a week plus 5.25%
commission on her sales. One week her sales are $2200. What is her total
income for the week? *
$535.50
$536.50
$555.00

Answers

Answer:

Answer: $535.50

Step-by-step explanation:

All you had to so was multiply $2200 by 5.25%. Which would then give you 115.5$ and then you add $420, which would give you the final answer of $535.50

WILL MARK BRAINLIEST!!!!

Answers

the answer is a 4.33......

I’m giving 30 points please help

Answers

Answer:

Triangle A

Step-by-step explanation:

Because in the picture it shows the grid and if you look closely you can see the points on the x and y axis, (3,2) (4,7) and (5,6) are the three points formed to make triangle A.

the price of one gallon of gas was $2.59 in 2007. the average price of one gallon of gas this month is $3.69. what is the percent of change?

Answers

Answer:

42.471% increase

Step-by-step explanation:

Solve for x: 5x = 2/7

Answers

5x=5=2/7 divided by 5

X=2/7 x 1/5

X=2/35

X=0.0571428

A rectangular parking lot measures 40 m x 30 m.
How much distance can you save by cutting
across the parking lot instead of walking all the
way around it from A to C?

This is Grade 8 Math Pythagorean theorem

Answers

I believe it’s 90 meters, but I don’t know what points are labeled A and C so I’m not sure.

Enter the value for that makes the given equation true.

20−5(6+4)=4−6

Answers

Answer:

hi, there is no variable

Are the two flags similar? If so, which triangle similarity theorem did you use to make your conclusion?

Answers

Answer:

Step-by-step explanation:

I THINK THE RIGHT ANSWER IS RHS THEOREM.

In ΔGHI, the measure of ∠I=90°, the measure of ∠G=76°, and IG = 6.2 feet. Find the length of HI to the nearest tenth of a foot.

Answers

Answer: 24.9

Step-by-step explanation:

6.2 tan(76) = 24.86

Answer:

the answer is 24.9

Step-by-step explanation:

What is the domain of y = log5^x
all real numbers less than 0
all real numbers greater than 0
all real numbers not equal to 0
all real numbers

Answers

Answer:

The answer is all real numbers

Answer:b

Step-by-step explanation:

A bouncy ball is dropped such that the height of its first bounce is 7 feet and each successive bounce is 67% of the previous bounce's height. What would be the height of the 8th bounce of the ball? Round to the nearest tenth (if necessary).

Answers

Answer:

4.79

Hope this helps! :D

Answer: 0.2

Step-by-step explanation:

solve for x in the triangle. round your answer to the nearest tenth

Answers

Answer:

x = 6.4

Step-by-step explanation:

Since you are given adjacent and hypotenuse use sin 53 = add/hyp

So .79863551 = x/8 so x = 6.3891

A. 220
B. 55
C. 110
D. 25

Answers

Answer:

The answer should be C

Helppppp pleaseeeee I don’t knowwww

Answers

-2,2
The c lands on negative 2 on the x coordinate and if you go up 2nd The y coordinate lands on 2 a regular 2!

help me plss
Hurry uppp

Answers

Answer:

550 inches

Step-by-step explanation:

10*15/2=75

10*5/2=25

15*30=450

75+25+450=550

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