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3 years ago

74 is what percent of180

Mathematics

2 answers:

-BARSIC- [3]3 years ago

7 0

74 x 100/180

= 370/9

= 41.1%

zlopas [31]3 years ago

5 0

............................

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Subtract 1/4w+4 from 1/2w+3 . help please

Diano4ka-milaya [45]

Answer:

1/4w -1

Step-by-step explanation:

(1/2w +3) -(1/4w +4) = w(1/2 -1/4) +(3 -4)

= 1/4w -1

_____

The distributive property applies. It is useful for distributing the minus sign and for collecting terms.

5 0

3 years ago

Read 2 more answers

The average marks of the first 10 students are 17 and that of the next 15 students is 18. find the mean of 25 students?

Ray Of Light [21]

Answer:

The mean of 25 students is 17.6

Step-by-step explanation:

The formula of the mean (average) is mean (average) = $\frac{S}{N}$ , where S is the sum of the data, and N is the number of the data

∵ The average marks of the first 10 students are 17

- That means the mean is 17 and the number of students is 10

∴ Average = 17

∴ N = 10

∵ Average = $\frac{S}{N}$

- Substitute average by 17 and N by 10

∴ 17 = $\frac{S}{10}$

- Multiply both sides by 10

∴ 170 = S

∴ The sum of the marks of the first 10 students is 170

∵ The average of the next 15 students is 18

∴ Average = 18

∴ N = 15

- Substitute average by 18 and N by 15

∴ 18 = $\frac{S}{15}$

- Multiply both sides by 15

∴ 270 = S

∴ The sum of the marks of the next 15 students is 270

Now to find the mean of 25 students and the two sums and divide the answer by 25

∵ S = 170 + 270

∴ S = 440

∵ N = 25

∴ Mean = $\frac{440}{25}$

∴ Mean = 17.6

The mean of 25 students is 17.6

3 0

3 years ago

Kevin bought a membership to a golf club. He pays $250 per month and $18 every time he plays a round of golf. Write an equation

Arturiano [62]

Hi there!

Let's solve this problem step by step!

The cost of 1 round of golf is $18
and therefore the total cost for all of the tickets is $18 ×
the amount of golf plays, mathematically $18 × g, hence 18g

The membership cost of 1 month is $250
and therefore the total cost for all of the tickets is $250 ×
the amount of months, mathematically $250 × m, hence 250m.

Now we can set up the equation. The only thing we need to do is adding up the individual functions.

Answer:
C = 250m + 18g

4 0

4 years ago

Find the midpoint of points A(10,-7) and B(6, 1) graphically.

sashaice [31]

Answer:

(8,-3)

Step-by-step explanation:

<u>Midpoint Formula: </u> $(\frac{x^{1}+x^{2} }{2}, \frac{y^{1} +y^{2} }{{2} } )$

Plug in your numbers from the coordinates:

(10+6/2, -7+1/2)

(16/2, -6/2)

(8,-3)

4 0

2 years ago

<img src="https://tex.z-dn.net/?f=%283%29%2F%28%5Csqrt%2873%29%29%20in%20simpest%20radical%20form" id="TexFormula1" title="(3)/(

maxonik [38]

Answer:

the answer is $\frac{3\sqrt{73} }{73}$

Step-by-step explanation:

If you have any questions feel free to ask - Mark

7 0

3 years ago