The Briarwood Middle School chess club has 55 members. 22 of the members are in seventh grade. What percent of members of the chess club are in seventh grade?

Answers

Answer 1

Answer: Solutions

The Briarwood Middle School chess club has 55 members. 22 of the members are in seventh grade.

To convert a fraction into a percent divide the numerator by the denominator and then multiply that result with 100. We can show this formula by (Numerator/Denominator)*100.

(22/55)*100

= 40.00%

= 40%

Answer 2

Answer: Well because there is a total of 55 students that will be your denominator

And there are 22 seventh graders so that would be you numerator since you want to know the percentage of the seventh graders present in the club.

To do so you just need to divide 22 by 55 and multiply that quotient by 100 and slap on that percent sign:

100 * (22 / 55) = 40%

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What is 1+4=5/2+5=12/3+6=21/8+11=

Answers

Well the pattern is the number before the slash plus the next number plus the next number give you your answer,if that makes sense so 21+8=29+11=40

Explain how you could determine whether a calculator correctly performs the order of operations

Answers

Answer:

" We can determine whether a calculator correctly performs the order of operations with the help of considering a simple example and solve it manually as well calculate the value in calculator and check whether it holds true.

If the calculator shows same value as we have calculated manually than calculator will calculate it for complex problems as well "

EXAMPLE:

We will use the PEDMAS (i.e. first solve the paranthases than solve for exponent, then for multiplication then division, then for addition and subtraction) rule to calculate our problem:

Consider our problem as:

$(5+3)^2-15/ 3+5$

firstly we will calculate it Manually as:

$(5+3)^2-15/ 3+5\n\n=(8)^2-15/ 3+5\n\n=64-15/ 3+5\n\n=64-5+5\n\n=64+0\n\n=64$

also when we will calculate it by calculator we get:

$(5+3)^2-15/ 3+5=64$

Hence, the calculator does the correct calculations.

Hence this type of calculator will be reliable.

You can check behind the calculator and do the math your self, this will let you know if the calculator is correctly doing the order of operations.

How to write 4/50 as a decimal

Answers

4/50 as a decimal is 0.08

4/50 as a decimal is 0.08
You get this by dividing 4 and 50 or since 50 goes into 100 you multiply numerator and denominator by 2
8/100 which equals 0.08

What is the period of y = 2cos(3x - 2pi)?
A: 3pi
B: 6pi
C: 3pi - 2
D: 2pi/3

Answers

Answer:

The correct option is D.

Step-by-step explanation:

The given function is

$y=2\cos (3x-2\pi)$ .... (1)

The general form of cosine function is

$y=A\cos (Bx-C)+D$ ... (2)

Where, A is amlitude, 2π/B is period, C is phase shift and D is midline.

From equation (1) and (2), we get

$B=3$

The period of the function is

$period=(2\pi)/(B)=(2\pi)/(3)$

Therefore the correct option is D.

The answer is D: 2pi/3

(1)Arrange the list of numbers in increasing order.2/5 , 4/9 , 3/7

(2)Which number is halfway between 1/2 and 5/6?
A.7/10
B.13/20
C.27/40
D.2/3

Answers

Hello,

I)
$(2)/(5)=(2*9*7)/(5*9*7)=(126)/(315)$

$(4)/(9)=(4*5*7)/(315)=(140)/(315)$

$(3)/(7)=(3*5*9)/(315)=(135)/(315)$

or
$(126)/(315)\leq(135)/(315)\leq(140)/(315)$
thus
$(2)/(5)\leq(3)/(7)\leq(4)/(9)$

II)

$((1)/(2)+(5)/(6))/(2)=(8)/(6*2)=(2)/(3)$

Write the equation of the line passing through (7,-4) and (-1,2) in slope intecept form