MATHEMATICS MIDDLE SCHOOL

In Mr. Diaz’s class, 20% of the students received a grade of “A” on their report cards. There are 25 students inMr. Diaz’s class. How many students received a grade of “A” on their report cards?

Answers

Answer 1
Answer: 25/x=100/20 criss cross and u will get 500/100=5 then 5 students resivs A.
Answer 2
Answer: Im not sure but I think 5 because there are 25 students so put 25 in the denominatorSet up a proportionPut 20 over 100 because percent means something over 10025 times 4 is 10020 divided by 4 is 5So the answer is 5

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Emily's meal costs $32.75 and Darren's meal costs $39.88. Emily treats Darren by paying for both meals and leave a 14% tip. find the total cost
Please help with this problem!!! Asap thank u so much!!!
What percent of 230 is 23?
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What is the value of 3^0x3^4=? without any exponents.

Answers

Answer:

81

Step-by-step explanation:

(30)(34)

=1(34)

=(1)(81)

=81
the value of 3^0x3^4 without any exponents is 243

Which is a diatomic molecule? (I also need explanation so that I can understand what I am doing for school please thank you very much) A.) He

B.) O2

C.) NaCL

D.) CuF2

Answers

Answer:

Oxygen is considered a diatomic molecule because the normal molecule consists of 2 atoms.

Step-by-step explanation:

20. A rectangular park is 600 m long and 300 mwide. You walk diagonally across the parkfrom corner to corner. How far do youwalk, to the nearest meter?Measurement

Answers

looks like the diagonal of a triangle
pythagoran theorem
diagnao=hypotonuse
200 and 600 are the legs

a^2+b^2=c^2
where you have legs legnth a and b and hypotonuse legnth c
200^2+600^2=c^2
40000+360000=c^2
400000=c^2
sqrt both sides
200√10=c
aprox
632.456 meters

Answer:

Answer 671m

GOT IT RIGHT ON TEST

How do u do this it's something about solving proportions and I have no idea how to do this plz help

Answers

Simple...what fun!

To solve for this type of problem...it's real simple!

I will show you the easiest and fastest way to solve...

so..you have...

(2)/(5) = (x)/(35)

Just..CROSS MULTIPLY!!

2*35=70
and
5*x=5x

Leaving you with....

5x=70

Easy...now divide!!

(5x)/(5) = (70)/(5)

x=14

To check your work...plug it in....

(2)/(5) = (14)/(35)

simplify...

14/7=2

and

35/7=5

Thus, your answer.

(4)/(9) ×m= 72 what is M?

Answers

Hello lets solve this! :)
\sf(4)/(9)m = 72\n\n\sf{Multiply~(9)/(4)~on~both~sides~to~isolate~m}\n\n(4)/(9)m * (9)/(4) = 72* (9)/(4)\n\nm = 72* (9)/(4)\n\nm = 18 * 9\n\n\boxed{\bf{m=162}}

Hope I helped! IIf you have any other questions or would like further explanation just let me know!! :)
(4/9)m=72
m=(72*9)/4
m=648/4
m=162

answer. m=162

PLZ HELP ASAP! U WILL GET 25 POINTS IF U HELP!(c) The graph shows the number of laps Kailee ran around a track over a given number of minutes

(c) If she continued to run at the same rate, how many laps would she run in 30 min?

The points on the graph are (11,4.4) and (5.5,2.2)

Answers

I found the graph online


(c)  She ran 2/5  of a lap every minute

(c)  In  30 min, she runs  30 x 2/5  =  60 / 5  =   12 laps
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