If y/100 has to be a represented as a decimal what would it be ?

Kobotan [32]

Answer:

a) 62%

b) 44%

Step-by-step explanation:

Beforehand we have the information that the amount of shoppers, let`s call it n= 150.

To answer the first question, we need to know the amount of shoppers that do not possess an email account: this is the sum= 18`+75 (both the shoppers without and with access to a computer at home buth without an email). Lets call it a.

The percentage is defined by:

%of shoppers that dont have and email account= a/n*100= (18+75)*100/150= 62%

The next question is the percentage of shoppers with computer access at home, thus the sum of 48+18, both who have and dont have an email account but the have computer access at home. Lets call it b.

So

%of shoppers that have computer access at home = b/n*100= (48+18)*100/150= 44%

7 0

2 years ago

Two systems of equations are shown below:

Sati [7]

System A:
6x + y = 2
-x - y = -3

System B:
2x - 3y = -10
-x-y = -3

Solve:
System A:
6x + y = 2
y = 2 - 6x
-x - (2-6x) = -3
-x - 2 + 6x = -3
5x = -3 + 2
5x = -1
x = -1/5
y = 2 - 6(-1/5)
y = 2 + 6/5
y = 2 + 1.2
y = 3.2 System A: x = -1/5 or -0.2 ; y = 3 1/5 or 3.2

System B:
2x - 3y = -10
2x = -10 + 3y
x = -5 + 1.5y
-x - y = -3
-(-5 + 1.5y) -y = -3
5 - 1.5y - y = -3
-2.5y = -3 - 5
-2.5y = -8
y = 3.2
x = -5 + 1.5(3.2)
x = -5 + 4.8
x = -0.2 System B: x = -0.2 ; y = 3.2

<span>B) They will have the same solution because the first equations of both the systems have the same graph.</span>

6 0

3 years ago

Read 2 more answers

Reserved tickets for the football game cost $20 each and general admission tickets cost $12. The total ticket sales brought in $

Leya [2.2K]

so what you would do is 20 x 12 and see what you get and the subtract it from 900 and then see what number would take you to 900

6 0

3 years ago

If 0.142857142857......is expressed in the form m/n, then what is the value<br>of (2m + n)?

frosja888 [35]

Answer:

The value will be: 1,285,713

Step-by-step explanation:

We have the number:

N = 0.142857...

Such that we have 6 decimals after the decimal point that repeat infinitely.

Then let's start by multiplying our number by 1,000,000 (same number of zeros as decimals after the decimal point)

Then we get:

1,000,000*N = 142,857.142857...

Now let's subtract N from both sides:

1,000,000*N - N = 142,857.142857... - 0.142857...

999,999*N = 142,857

Now let's isolate N

N = 142,857/999,999

Here is our number expressed in the form m/n, where:

m = 142,857

n = 999,999

Then the value of (2*m + n) is:

(2*142,857 + 999,999) = 1,285,713

5 0

3 years ago

Find the perimeter. Round to the nearest whole number.<br> 15 is c and 30 is a)

ziro4ka [17]

Answer:

45

Step-by-step explanation:

Hope this helps.

8 0

3 years ago