forty children from an after-school club went to matinee. this is 25% of the children in the club. how many children are in the club?

Answers

Answer 1
Answer:

The total number of children in the club is given by the equation A = 160 students

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the total number of students be represented as A

Now , the equation will be

The number of students who went to the matinee = 40 students

The percentage of students who went to the matinee = 25 %

So ,

percentage of students who went to the matinee  x total number of students = number of students who went to the matinee

Substituting the values in the equation , we get

( 25 % ) x A = 40

On simplifying the equation , we get

( 25/100 ) x A = 40

A / 4 = 40

Multiply by 4 on both sides of the equation , we get

A = 160 students

Therefore , the value of A is 160 students

Hence , the equation is A = 160 students

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Answer 2
Answer: 25% of 40 is 40 times 25 divided by 100 which is 10 (number of children in the club)

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PLZZZZZ HELP!!! WILL GIVE BRAINLIEST TO FIRST RIGHT ANSWER!

Determine the equation for the parabola graphed below

Answers

Answer:

y=(x-2)^2-1

Step-by-step explanation:

The given function:

Since the function  is open upwards means is of y=x^2

And we can see one unit down and 2 units shifted on right in parent function.

Therefore, the function is of y=(x-2)^2-1

Graph takes parabola shape by quadratic function.

The histograms show the test results from two different tests in Mrs. Lofton's class. How many students are in Mrs. Lofton's class?

Answers

Answer:

There are 28 students in Mrs. Lofton's class.

Step-by-step explanation:

Counting the green bars that is test 1:

2+5+6+1=14

Counting the orange bars that is test 2:

2+3+5+4=14

The total students are = 14+14=28

Therefore, there are 28 students in Mrs. Lofton's class.

test 2=14
test 1=14
all togethere 28

How can estimating quotients help you to place the decimal correctly

Answers

it gives a better virw on where to put things

after five tests, Mike's average score is 91. After 6 tests, his average score was 89. what was his score, on the sixth test?

Answers

( x 1 + x 2 + x 3 + x 4 + x 5 ) / 5 = 89 Multiply both sides by 5 

x 1 + x 2 + x 3 + x 4 + x 5 = 89 * 5 = 445 


( x 1 + x 2 + x 3 + x 4 + x 5 + x 6 ) / 6 = 90 

( 445 + x 6 ) / 6 = 90 Multiply both sides by 6 

445 + x 6 = 6 * 90 = 540 

x 6 = 540 - 445 = 95

Final answer:

Mike's score on the sixth test can be found by subtracting the total score after five tests from the total score after six tests (534 - 455), which yields a score of 79.

Explanation:

In order to solve this problem, we need to understand how averages work. The total score after five tests is 91*5, which amounts to 455. After the sixth test, the total average dropped to 89. To find the total score after six tests, you multiply 89*6, which gives us 534. The score for the sixth test can be found by subtracting the total score after five tests from the total score after six tests. So, 534 - 455 = 79. Therefore, Mike scored 79 on his sixth test.

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Santa gains 3 pounds per week.How many pounds will he gain in 20 weeks

Answers

Answer:

Santa will gain 60 pounds in 20 weeks.

Step-by-step explanation:

3 x 20= 60

Answer:

60 pounds

You would multiply 20 times 3 to get the answer.

Kate made a box to hold her jewelry collection. She used 42 inches of wood to build the sides of the box. If the box was 9 Inches wide, how long was the box?

Answers

Assuming that the sides of the box are square (having 90° angles on all four corners), then it should be relatively easy for us to find the length of the box, given the perimeter and the length of one side.
We know the length of all sides combined is 42 inches, and that the length of one side is 9 inches. With a rectangular prism, the length of one side is the same as the length of the opposite side, so there are two sides that measure 9 inches.
All we need to do to find the measure of both the other sides' lengths is subtract the known lengths from the total length.

9 + 9 = 18

42 - 18 = 24

So the rest of the side lengths added together is 24 inches.
There are two sides left, so all we have to do is divide by 2 to find the length of the box.

24 / 2 = 12

The length of Kate's jewelry box is 12 inches.
Hope that helped =)