Mathematics High School

I need help figuring out X, i’ve been trying multiple solutions and I still don’t get what I have to do.

Answers

Answer 1

Answer: 5

Step-by-step explanation:

47+ 16x-4 +12x-3 =180

28x +40 =180

28x = 140

X= 5

Related Questions

Which of these is a correct identity?
x + 4x = 5x
6x = 18
2x + 1 = 7
7x + 9 = x

Answers

Answer:

x + 4x = 5x

Step-by-step explanation:

An identity is a mathematical equation that is always true (here - for all possible x's).

a). x + 4x = 5x; this is true, because for any possible x

x+4x = (1 + 4)x = 5x; there's not much to add.

b). 6x=18; evaluates to

x = 3; so it only works for one x, not all possible xs.

c). 2x + 1 = 7

2x = 6

x = 3; so it only forks for one x

d). 7x + 9 = x

6x + 9 = 0; we could compute the exact x it works for from here, but suffice to say this doesn't work for x = 0.

In between these given equations, x + 4x = 5x is the correct identity here.

What is an identity?

"An identity is an equality relating one mathematical expression A to another mathematical expression B, such that A and B produce the same value for all values of the variables within a certain range of validity."

Given equations are:

1. x + 4x = 5x

⇒ 5x = 5x

This equation is true for all values of 'x'.

Hence, this is a correct identity.

2. 6x = 18

⇒ x = 3

This equation is true when x = 3.

3. 2x + 1 = 7

⇒ 2x = 6

⇒ x = 3

This equation is true when x = 3.

4. 7x + 9 = x

⇒ 6x = - 9

⇒ x = - 9/6

⇒ x = - 3/2

This equation is true when x = - 3/2.

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Pls help! Brainliest!!!A horse has a speed of 10 miles per hour. The horse has traveled 15 miles. How many miles will it travel in total if it rides for another 4 hours?

___ miles

Answers

Answer:

10×4 = 40

Given,

already travelled 15 miles

so,

40+15

55 miles

Therefore, The It travels 55 miles

i need help please!!

Answers

20(5)+12(40)
100+480= 580

Answer is 580 because I did this problem a couple times as a warm up

1. Which situation could be represented by y = 4x + 7?
a student started with $4 and saved $7 per week.
A package costs $7 plus $4 per pound to ship.
A skateboard weighs 4 pounds plus 7 ounces.
A recipe calls for 7 cups of flour and 4 cups of sugar.

2. What is the equation of the line through (5,8) and (2,2)?
y = 2x + 2
y = 2x - 2
y = 5x - 8
y =8x - 5
3. The slope of a line is -1/3 and the y-intercept is 3. What is the equation of this line?

y = 1/3 + 3
y = -1/3 + 3
y = 3x - 3
y = 3x - 1/3

4. What is the equation of the line that has a slope of 2 and goes through (3,7)?

y = 2x + 3
y = 1/2x + 7
y = 2x + 1
y = -2x + 1

5. Sammy is saving up to buy a PS5 plus. He has $40 and will save $60 per week. Which equation represents this situation?
1 point
y = 40x + 60
y + 60x + 40
y = 60x - 40
y = 40x - 60

6. Sammy is saving up to buy a PS5 plus. He has $40 and will save $40 per week. How long will it take Sammy to save the money if the PS5 plus costs $600?
11 weeks
12 weeks
13 weeks
14 weeks

7. Steph made $360 working 30 hours last week. Sam made $195 working 15 hours last week. Who made more per hour?
Steph
Sam

Answers

Answer:

B, A package costs $7 plus $4 per pound to ship. B, y = 2x - 2 B, y = -1/3x + 3 C, y = 2x + 1 B, y = 60x + 40 D, 14 weeks (600 = 40 + 40x)Sam, ($13hr)

i hope this helps, good luck :)

Multiple Choice The Astrodome-in Houston, Texas, is circular and has a diameter of 710 feet. What is the approximate circumference of the Astrodom

Answers

Answer:

Step-by-step explanation:

[tex]C=\pi d\\ \\ C=710\pi ft\\ \\ C\approx 2230.5 ft[/tex]

Answer:

2230.53

Step-by-step explanation:

I need help ASAP , I don’t understand this

Answers

Answer:

can't see, the pic is too blurry

2g(4g+3)+g(g-7) expand linear brackets

Answers

Answer:

7g^2 - 13g

Step-by-step explanation:

2g(4g+3)= 8g^2 + 6g

g(g-7)+ g^2 - 7g

8g^2 + 6g = g^2 - 7g

7g^2 = -13g

82- 2to the third power.5 please help!

Answers

Answer:

240

Step-by-step explanation:

82-2= 80 to the third power so just multiply 80 x 3 and you have your answer.

Answer:

512000 (square root of it is 712.5)

Step-by-step explanation:

82 -2 = 80

80^3

= 80*80*80

= 80^3

= 512000 (square root of it is 712.5)

Let me know if this was helpful!!

A model airplane is shot up from a platform 1 foot above the ground with an initial upward velocity of 56 feet per second. The height of the airplane above ground after t seconds is given by the equation h=-16t^2+56t+1 where h is the height of the airplane in feet and t is the time in seconds after it is launched. Approximately how long does it take the airplane to reach its maximum height?
A)0.3 seconds
B)1.8 seconds
C)3.5 seconds
D)6.9 seconds

Answers

Answer: I think is none

Step-by-step explanation:

Tbh

what is 2 times 5 minus 1

Answers

what is 2 times 5 minus 1?

what% of $700,000 = $525,000

Answers

Answer:

$525,000/$700,000×100%=75% is required %.

Jaxson and his friends went into a movie theater and they want to buy some bags of popcorn and pretzels. Each bag of popcorn costs $5.50 and each pretzel costs $4.00. How much would it cost to buy 4 bags of popcorn and 2 pretzels? How much would it cost to buy bb bags of popcorn and pp pretzels?

Answers

Answer:

$22 for popcorn and $8 for pretzels together it would be $30

Step-by-step explanation:

15 1/3 - 5 7/9 = 10 1/3 - 7/9

Answers

Answer:

true

Step-by-step explanation:

Simplify:
3 (2x — 2) — 2 (x — 2)

Answers

Answer:

4x-2

Step-by-step explanation:

Answer:

4x-2

Step-by-step explanation:

3(2x-2)-2(x-2)

Use the distributive property

6x-6-2x+4

Combine like terms

4x-2

Which of the following is an arithmetic sequence?

12, 4, 4/3, 16/3 ...
1/2, -1/2, -3/2, -5/2 ...
1/2, -1/2, 1/2, -1/2 ...
2, 4, 8, 16, ...

Answers

Answer:

1/2,-1/2,1/2,-1/2

Step-by-step explanation:

hope helpa

PLEAASSEE PLLEEAAASSSEEE SOMEONE ANSWER THIS IS URGGEENNNTTTT!!!!!!!!!!!!!!!!!!!!! I'LL EVEN GIVE YOU BRAINLIST!!!!!!!!!!!!!!!!!

Candice has a bag with 4 green, 7 orange, and 9 blue Skittles in it. She randomly selects one Skittle to eat and then another. Is this dependent or independent probability?

A. independent
B. dependent

Answers

Answer:

Step-by-step explanation:

Isabella deposited $500 into a savings account at a local bank that earned 5% interest per year. How much interest does she earn in her first year?

Answers

Answer:

$25

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 5%/100 = 0.05 per year,

putting time into years for simplicity,

12 months ÷ 12 months/year = 1 years,

then, solving our equation

I = 500 × 0.05 × 1 = 25

I = $ 25.00

The simple interest accumulated

on a principal of $ 500.00

at a rate of 5% per year

for 1 years (12 months) is $ 25.00.

HELP MEE! WILL MARK BRAINLIEST, NEED ALL 4 ANSWERS

Answers

Answer:

1. 7 , 2. 4, 3. 29, 4. 71

Step-by-step explanation:

answer 1 is 7
answer 2 is 4
answer 3 is 29
answer 4 is 71

(i may be wrong...)

Which expression is equivalent to 16^2 − 36? (Explain)

A. 4(2 − 3)(2 − 3)
B. 4(2 + 3)(2 − 3)
C. (4 − 6)(4 − 6)
D. (4 + 6)(4 + 6)

Answers

Answer:

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

Step-by-step explanation:

Here, we want to simplify the given expression

we can have;

16x^2-36

= 4(4x^2 -9)

we can use the difference of two squares

where;

a^2 - b^2 = (a-b)(a + b)

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

Graph a line with a y-intercept of 3 and containing the point (2, 5).

To graph a line, plot two points on the line.

Answers

Answer:

click on the thanks

WHAT IS THE VALUE OF X PLEASE HURRY!!!!

Answers

Answer:

I think 48, since it's an equilateral triangle.

Step-by-step explanation:

Answer:

Step-by-step explanation:

cuz its a equilateral triangle

WILL GIVE BRAINLIEST PLEASE ANSWER FAST Solve for each indicated angle measure or
variable in the figure.

Answers

180 - (25 + 20) = 135 angle Q
x = 45

Answer:

All angles in a triangle sum up to 180 degrees. The value of x is 45 degrees.

Step-by-step explanation:

Efectúa las siguientes divisiones de monomios
Me ayudan por favor

Answers

Answer

c. 20 : 10

F . 30:15

i. 28 : 14

Step-by-step explanation:

Write the following expression in expanded form 3(4y+x-8)
For example: 5(x+2) in expanded form would be 5x+5*2.

Answers

12y+3x-24 you times everything in the bracket by 3

Answer:

12y+3x-24

Step-by-step explanation:

Can someone solve this and show work?

Answers

Answer:

No habla engles

Step-by-step explanation:

Answer:

x = - 6, x = 4

Step-by-step explanation:

Given

x² + 2x - 24 = 0

Consider the factors of the constant term (- 24) which sum to give the coefficient of the x- term (+ 2)

The factors are + 6 and - 4 , since

6 × - 4 = - 24 and 6 - 4 = + 2 , then

x² + 2x - 24 = (x + 6)(x - 4) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 6 = 0 ⇒ x = - 6

x - 4 = 0 ⇒ x = 4

Resuelve

Ritmo de cambio. Cada uno de los siguientes datos es la pendiente de una recta que representa los ingresos diarios y en términos del tiempo X en días. Utilizar la pendiente para interpretar
la variación en los ingresos correspondiente a un incremento de
un día
a). m =800
b). m =250
c). m = 0

Answers

Answer:

800m

Step-by-step explanation:

porque incremento de un día

A rafter makes an angle of 28° with the horizontal. If the rafter is 15 feet long, what is the height at the rafter's peak? Draw a diagram.

Answers

The height is 7.04 feet at the rafter's peak that makes an angle of 28° and 15 feet long.

What is angle?

An angle is the formed when two straight lines meet at one point, it is denoted by θ.

Given that,

Length of rafter = 15 feet,

Angle made by rafter with the horizontal = 28°

Apply sin formula to determine the length x of the rafter,

sinθ = x / 15

sin28° = x / 15

0.469 = x / 15

x = 7.04

The height of the rafter is 7.04.

To learn more about Angle on :

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When looking at a rate table for supplemental term life insurance, what are the rates based on?
a. where the insured was born
b. the marital status of the insured
c. where the insured lives
d. the age of the insured

Answers

All of the above but the most important is d: the age of the insured

Answer:

d. the age of the insured

Step-by-step explanation:

The primary unit for figuring out a life insurance rate is the rate per thousand

here are 3 number 1 2 4 what it the 4 and 5 terms of the sentance

Answers

‘1 2 4 8 16’
my thinking is the numbers are squared.

You should answer in the n th term like that she can ask even for the 100th number and u will have it . The way it works is where u see the ‘n’ in the pic u replace with the number she asks 4 and 5. Btw the formula below only works for this.

A caterpillar eats 1400\%1400%1400, percent of its birth mass in one day. The caterpillar's birth mass is mmm grams.
Which of the following expressions could represent the amount, in grams, the caterpillar eats in one day?
Choose 2 answers:
sorry, I just copied and pasted and it gave me extra numbers.
by the way, this is for khan academy

Answers

Answer:

I d k

Step-by-step explanation:

Answer:

The correct answer is B and E.

Step-by-step explanation:

I did it in Khan Academy.

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