A science fair 180 entries.There are 72 entires from 6th grade what percent of the entires are in the sixth grade students?

Step-by-step explanation:

As,we know percentage formula is (no.of students/total no.of students ×100)

= 72/180*100

= 40%

the 6th grade students are 40%

Evaluate f(a+2)for f(x)=x^2-9

An angle measures 4.3 radians. To the nearest degree, what is the measure of the angle? degrees

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Brandon’s factory produces 832 containers per hour on the first production line. After maintenance is completed on the first production line, the factory is able to produce 1102 containers per hour. By what approximate percent did the maintenance increase production? (Round your answer to the nearest whole percent.)

A handyman charges $150 plus $25 per hour for house painting. A painter charges $55 per hour. How many hours would it take for the handyman's fee and the painter's fee to be the same?

Which is the function

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gina's bill at a restaurant was 120.90 . how much will she tip the waiter if she is giving them a 30% tip? she will tip _____________ dollars

what is gina's new tip bill , incluiding the tip now?

Find the total surface area

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what is the best estimate for the value of the expression?
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Brian made a tasty burger . the diameter of the Burger was 5cm. what is the radius of the circle?

Write the equation of the line that passes through the points (-7, -4) and (-8,2).
Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal
line.

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James is in charge of the decorations. He has a total budget of $50 to spend for all of the decorations. James spends $20 on one banner and would like to buy balloons that cost $2 each with the rest of the money .

Write an equation to represent the situation


A. 2x+50=20

B. 2x+20=50

C. X+20=50

D. 2x+70=50

Part b

How many balloons can James buy

when you Subtract: 70-(-11) what is your answer

(x, y) ---> (cx, cy)
(x, y) ---> (-y,x)
(x, y) ---> (-x,y)
(x,y) ---> (-x .-y)
(x, y) ---> (y.-x)
(x,y) ---> (x+h, yuk)
(x, y) ---> (x,-Y)

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There are 15 neon tetras and 12 betta fish in a fish tank. What is the ratio of betta fish to the total number of fish? Write the ratio on simplest form.
hint Read the question very carefully, notice the phrase "total number of fish"
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A company claims that their new bottle holds 40% more laundry soap. If their original container held `53` fluid ounces of soap, how much does the new container hold?

what’s the difference between the expansion of (-2x)^2 and -2x^2

Find the total surface area of the net below​

A rectangular garden has a length that is 4 feet longer than its
width. The entire garden is surrounded by a 1-foot-wide decorative
brick pattern on the ground. Write an expression for the total area
of the garden and decorative brick pattern.

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Using the two functions listed below, insert numbers in place of the letters a, b, c, and d so that f(x) and g(x) are inverses.

[tex]f(x) = \frac{x + a}{b}[/tex]
[tex]g(x) = cx - d[/tex]

My teacher told me to just make up any number for the variables a, b, c, d and plug them in. So I made up these numbers:

A: 3
B: 5
C: 7
D: 9
***These are supposed to be substituted into the the equations above!!***

However, when I plug them into the equation of f(x), it doesn't equal the equation of g(x). Did I do something wrong? Please help!!!

The histogram below shows cell phone data usage in megabytes (Mb).

Picture

Using the histogram above, which range best describes the values for the mean and the median data usage?


0 – 100 Mb


100 – 200 Mb


200 – 300 Mb


300 – 400 Mb

James buys 8 packages, each 20 mechanical pencils, and passes out 1/4 of then to his friends. Write and evaluate an expression to find out how many mechanical pencils James has left.

If a bird is flying at 30 meters above sea level and a fish is swimming 15 meters below sea, how many meters are between them? You can draw a vertical number line to help you.

Terrance used this expression to find the final price, in dollars, of a hat that is discounted 30% off the original price of $20

The ratio of french fries to packets of ketchup in Philip's bag is 8:1. What does this mean

Convert the equation below to slope intercept form 2x+y=3

Helppp