Answer:
Girls to boys = 1:2
Girls to students = 1:3
Boys to students = 2:3
Step-by-step explanation:
So, let's subtract the number of girls from the number of students in the class:
60 - 20 = 40
This means that for every 20 girls there are 40 boys in the ratio of girls to boys:
20:40
This can be simplified down by factoring, here we can divide by 20:
(20 ÷ 20) : (40 ÷ 20)
1:2
So the ratio of girls to boys is 1:2
The ratio of boys to students can be calculated via:
40:60
This can be simplified by dividing by 20 again:
(40 ÷ 20) : (60 ÷ 20)
2:3
So the ratio of boys to students is 2:3
The ratio of girls to students can be put in a ratio of:
20 : 60
This can be simplified down by dividing by 20:
(20 ÷ 20) : (60 ÷ 20)
1:3
So the ratio of girls to students is 1:3
Hope this helps!
Answer:
2.7 and 99.6%
Step-by-step explanation:
In this question, we are asked to calculate the percentage of the population scores as a genius.
We proceed as follows;
z =( Mean - value)/standard deviation= (140 - 100)/15 = 2.6667 = 2.7
From normal probability table, given that z = 2.67, the probability is 0.9962
This means that the required percentage is 99.6%
Answer:
x 1 2 5 7
y 5 10 25 35
Step-by-step explanation:
The y values are all just the x values times 5
Normally, the data path width for DIMMs
is 64 bits but for the DIMMs that support ECC, the data path is 72 bits.
To add, error checking uses
the extra 8 bits. ECC memory is more reliable than non-ECC memory but it costs
more than a non-ECC memory. Comprising the DIMMS are a series
of dynamic random-access memory integrated circuits. Mounted on a
printed circuit board, these modules are designed for use in personal
computers, workstations and servers.
The most common kinds of internal data corruption are
detected and corrected by a type of computer data storage called error-correcting
code memory.
Answer:
the number is 4
Step-by-step explanation:
4 times 3=12
12-10=2
hope this helps!