55 is 40% of what number

Answers

Answer 1

Answer: It is important to do thecalculations very carefully. Otherwise there is nothing complicated about thisproblem.
Let us assume the unknown number = x
Then
40x/100 = 55
40x = 55 * 100
40x = 5500
x = 5500/40
= 550/4
= 137.5
So55 is 40% of 137.50. I hope the procedure is clear to you and in futureyou can solve such problems on your own without requiring any help fromoutside.This is the simplest way of solving suchproblems.

Answer 2

Answer: 55 is 40% of 137.5

Convert your percentage into a decimal:
40%/100 = 0.4

Divide 55 by the decimal:
55 ÷ 0.4 = 137.5

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Juan mowed the same number of lawns each week as Mark. Which equation represents Juan’s rate of mowing lawns, where x represents the number of weeks and y represents the total number of lawns mowed?

Answers

Answer:

y=20x is correct

Step-by-step explanation:

i took the quiz

Answer:

y = 20x

i got the question right on the quiz

The tangents of of the problem, I don't know how to solve.

Answers

hmmm anyhow.. how are you meant to get it? by means of a trigonometric identity? or by something else?

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A)all the sides of the shape are added together?
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Answers

Answer:

do length + width and you will find your answer

Step-by-step explanation: /\

Which graph represents the function of f(x) = the quantity of 4 x squared minus 4 x minus 8, all over 2 x graph of 2 x minus 4, with discontinuity at negative 1, negative 6
graph of 2 x minus 4, with discontinuity at 1, negative 2
graph of 2 x plus 2, with discontinuity at negative 1, 0
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please and thank you

Answers

Solution:

The given function is

f(x)= $(4 x^2- 4 x -8)/(2 x)$

f(x)= $(4 x^2)/(2 x)-(4 x)/(2x) -(8)/(2x)\n\n = 2 x -2 -(4)/( x)$

f(x)= 2 x - 2 - $(4)/(x)$

To find the points of Discontinuity

Put, f(x)=0

→ 2 x - 2 - $(4)/(x)$ =0

→2 x² - 2 x - 4=0×x

→2 (x²-x-2)=0

→ x² - x -2=0

Splitting the middle term

→ x² - 2 x + x -2=0

→ x×(x-2)+ 1 × (x-2)=0

→ (x+1) (x-2)=0

Gives, x= -1, and x=2.

So, the graph represented by f(x)= $(4 x^2- 4 x -8)/(2 x)$ is equal to f(x)= 2 x - 2 - $(4)/(x)$ with points of Discontinuity at -1 and 2.

12.Last year, the average math SAT score for students at one school was 475. The headmaster then introduced a new teaching method hoping to improve scores. This year, the mean math SAT score for a sample of students was 491. The headmaster concluded that the new teaching method produces higher SAT scores. What is the problem with reporting results this way?

correlation and causality

voluntary response

missing data

loaded question

Answers

Last year, the average math SAT score for students at one school was 475. The headmaster then introduced a new teaching method hoping to improve scores. This year, the mean math SAT score for a sample of students was 491. The headmaster concluded that the new teaching method produces higher SAT scores. The problem with reporting results this way is voluntary response. The information of how the teaching method isnot mentioned.

Answer: voluntary response

I just took the test and got it right

CAN SOMEONE PLEASE HELP ME SOLVE THESE.ik it’s a lot but i really need some help
thank you

Answers

Answer:

a) 3p + 3q

b) 3a^2 + 4

c) -4ab + 24a

d) 3 (x - 2)

e) 3x + 7y

f) (x + 1) (2x + 3)

g) x^2 + x - 6

h) 6x^2 - 31x + 18

i) -5^2 + 6x +2y + 6

j) 2x^3 + 11x^2 + 17x + 6.

I answered question 1

Hope that helps. x

A 3x+3c
B 9x^2+12x
C -4ab+24a
D 3x-6
E 3x+3
F (x+1)(2x+3)
G x^2+x-6
H 6x^2-31x+18
I 6x-8y+11
J 2x^3+11x^2+17x+6

M=12

40

44

20

250/11

Last one is 33

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