Mathematics High School

1.
In a zoo, there were 36 exhibits, but k exhibits were closed. Write the expression
for the number of ethibits that were open.

Answers

Answer 1

Answer:

x= 36 - k

Step-by-step explanation:

let X stand for the amount of exhibits open

36 is the total number of exhibits

K is the amount of exhibits closed

you would subtract k from 36 to find out how many exhibits are open

Answer 2

Answer:

x=-36k

Step-by-step explanation:

Related Questions

HELPPP PLSSSS I REALLY NEED HELP!!!

Answers

Answer: 108°

Step-by-step explanation:

Answer:

108Step-by-step explanation:

Remember that the total amount of degrees in a pentagon is: 540, and there are 5 sides, so divide 5 by 540:

540/5 = 108

108 is your answer.

Carson has 5 craft sticks. He needs 11 times that number for a project. How many craft sticks does Jack need altogether?

Answers

Answer:

55

Step-by-step explanation:

You would do 5 x 11 and that gives you 55 :)

Jenny's bakery sells carrot muffins for $2 each. The electricity to run the oven is $120 per day and the cost of making one carrot muffin is $1.40. How many muffins must be sold each day to break even? How many days will it take to break even?

Answers

Answer:

200 days

Step-by-step explanation:

2m=120+1.4m

0.6m=120

m=200

divide by 0.6

David was thinking of a number. David divides by 3, then adds 2 to get an answer of 6. What was the original number?

Answers

12. The key is to do it backwards. So 6-2=4. 4x3=12. Hope this helps.

peter had 8 blue , 3 red and 5 green pencils. what fraction of the pencils were blue?20 points!!!​

Answers

Answer:

1/2

Step-by-step explanation:

You take the number of blue pencils and divide it by the total # of pencils.

hope this helps! :D

The price of a video game was reduced from $70.00 to $40.00. By what percentage was the price of the video game reduced? Justify your answer.




Whoever gets it correct will get brainliest

Answers

42.86% I’m for sure it’s the correct answer

Answer:

Step-by-step explanation:

Percent change=100(final-initial)/initial

100(40-70)/70=-3000/70

approximately -42.86%

what is value of x for which the equation 9^-6 x 9^x = 1

Answers

X=6 I hope this helps you out

Answer:

x=6

Step-by-step explanation:

9^-6*9^x=1

(x-6)In(9)=In(1)

Awnser

x=6

18. Find the value of x to
make the following equation
true.
(3^2)^3 x 3^x = 3^7 x 3^3/ 3^11

Answers

Step-by-step explanation:

(3²)³ × 3^x = 3⁷ × 3³/3¹¹

3⁶ × 3^x = 3¹⁰/3¹¹

3⁶ × 3^x = 3^-1

3^x = 3^-1 / 3⁶

3^x = 3^-1 × 3^-6

3^x = 3^-7

x = -7

Hope I did this right: x=-7!

The value of a car decreases by 5% each year.
Sophie bought a car two years ago for £10000
Work out the value now

Answers

10,000*0.95^2
=9025

0.95 is a multiplyer since 100%-5%=95% then divided by 100 giving you 0.95

You always power by the amount of years

So the format is always
Amount*multiplyer^years

A TV that usually sells for $185.47 is on sale for 20% off. If sales tax on the TV is 5%, what is the price of the TV, including tax?

Answers

Answer: The price of the TV including tax is $157.65.

Step-by-step explanation:

You earn $11 per hour working at a grocery store during the summer. The function p(x)=11x represents the amount you earn for working x hours.

a. You work 18 hours. How much do you earn?


b. How many hours do you have to work to earn $275?


plz help me!!!

Answers

Answer:

A. $198 and B. 25

Step-by-step explanation:

11 × 18 is 198, which is the first answer.

If you take 275 and divide it by 11, you get how many hours you have worked, which would be 25. :)

Answer:

a. $198

b. 25 hours

Step-by-step explanation:

a. You earn $11 per hour, and so if you work 18 hours, you multiply "11 x 18" to find out how much money you would make during that time period.

b. To find out how many hours you are required to work to be paid $275, you simply need to divide by 11, seeing as how that is how much you would be paid per hour. So, the equation would look like this: "275/11 = 25"

question is in the pic

Answers

Answer:

Median

Step-by-step explanation:

The median is supposed to be 86.5, not 89.

Hope it helps!

Answer:

I agree with the other person

Step-by-step explanation:

Let f(x) = 3(x - 6)^2 + 1. What is the range of f? Express your answer with interval notation.

Answers

X is an element of [6,+ inf [
f(x) = 3(x-6)²+1
This is an up-opening parabola with vertex (6,1).
Range: [1,+∞)

A line with a slope of 5 passes through the point (3, 8). What is the value of its y-intercept?

Answers

Answer:

(0,-7)

Step-by-step explanation:

y=5x-7 is slope

The degree of the polynomial: 4x²y + x2 - 2y2 is​

Answers

Answer:

2nd degree.

Step-by-step explanation:

The degree is the highest exponent of a polynomial. Therefore, since the only term with an exponent is 4x²y, the degree is 2.

PLZ PLZ PLZ help 50 points

Answers

Answer:

i think im to late sorry

Step-by-step explanation:

The width of a room is 1/3 its length if the perimeter is 144 m find the dimensions

Answers

W= L*1/3
18=54/3
P=L+L+W+W
144m=18+18+54+54

Enter the range of values for x:
2x - 4
10
45
60
[?]

Answers

Answer: 2

Step-by-step explanation:

The range of value of x is, [tex]x>2[/tex]

Since the Length of any side of quadrilateral is always be positive.

So,  [tex]2x-4[/tex] is always greater than zero.

                 [tex]2x-4>0\\\\2x>4\\\\x>\frac{4}{2}\\\\x>2[/tex]

Thus, the range of value of x is, [tex]x>2[/tex]

Learn more:

https://brainly.com/question/22739156

A particle travels 24.6 km in 30 minutes. Find the
speed of the particle in
(i) km/h,
(ii) m/s.

Answers

Answer:

See the solutions below

Step-by-step explanation:

Given data

Distance = 24.6km

in meters= 24.6*1000= 24600m

time= 30 minutes

in seconds= 30*60= 1800

int hours= 0.5 hour

speed of the particle in

(i) km/h= 24.6/0.5= 49.2 km/h

(ii) m/s.= 24600/ 1800= 13.66 m/s

What is true about the dilation?

Answers

Dilation is scale factor, like a dilation scale factor of 2

PLSSSSS HELP ME BEST ANSWER GETS BRAINLIEST

Answers

Answer:

40

Step-by-step explanation:

basexheight= area

8x10= 80

80/2=40

pls brainliest

22.8 units squared is the answer

What percent of 32 is 10

Answers

Answer:

31.25

Step-by-step explanation:

Answer:

31.25%

Step-by-step explanation:

We can write this as a fraction:

10/32

Now you divide it to get a decimal:

10 ÷ 32 = 0.3125

0.3125 = 31.25%

Hope this helps!

Find the values of p and g such that
4x² + 12x = 4(x + p)^2-q

Answers

Answer:

q=8xp+4p²-12x

Step-by-step explanation:

its easy

solve (x/x+2) - (4/x-2) = 1

Answers

Ye it’s x=1
Just writing extra words so I have enough works to send

Can someone help please?

Answers

Answer:

Corresponding Angles Theorem

Step-by-step explanation:

Since, the angles are on the same side of the transversal, one interior angle and exterior angle.

Hence, these are corresponding angles .

Question 17
In asexual reproduction, 2 parents each pass copies of all of their chromosomes to the offspring.
True
False

Answers

Answer:

False

Step-by-step explanation:

Asexual reproduction is with one parent (Ex. A starfish)

Sexual reproduction is with 2 (Ex. A human)

Hope this helps!

x + 3y = 1
5x +6y = 14

Answers

Answer:

1. X = 1 - 3y

2. -5/6x + 7/3

Those are the answers to the problems

(x,y) = (4,-1)

x + 3y = 1 subtract 5 from both sides you get -5x -15y =-5

now sum it up
-5x -15y =-5
5x +6y = 14
you get -9y = 9
divide both sides by -9

you get y=-1

NOW substitute y for x + 3 times (-1)= 1

solve for x and get x=4

therefore your answer is (4,-1)

Add the given polynomial and show your solution.​

Answers

a. 4a-2b+3
b. 7x^2-8x-3

15)
If a rectangle has a length of 16 centimeters and a width of 20 centimeters, what is the area?
A)
36 cm
B
72 cm
320 cm
D
640 cm?
E)
102,400 cm?

Answers

Answer:

efhjgsbjfdnh3tbht

Step-by-step explanation:

?xhhbhhagjctii8u5yegvjutiio

320cm remember LxW to find the area

Consigna 7: Una fotografía se reduce a una escala de 1:3 y
enseguida se reduce nuevamente con una escala de 1:4. ¿Cuál
es la reducción total que sufre la fotografía original?​

Answers

Answer:

1/4 x 1/3 x 1/12 es la reducción sobre la foto original

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