Answer:
The projected image has dimensions 4 times those of the computer screen. The ratio is 1:4.
Step-by-step explanation:
The ratio of the projected width to the computer screen width is ...
(53 in)/(13.25 in) = 4
The ratio of heights is the same:
(42.4 in)/(10.6 in) = 4
The linear dimensions of the projected image are 4 times those of the computer screen.
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The way the question is written, you may be expected to write this 1 to 4 ratio as the fraction 1 : 4 or 1/4.
Answer:
275
Step-by-step explanation:
412kg - 123kg - 14kg = 275kg left
Because he used 275 kg out of 412kg
Answer:
68$
Step-by-step explanation:
cost of 10 book= 10$ * 10= 100$
now,
Remaining money= 168$-100$
=68$
Answer:
Step-by-step explanation:
So Blakes sleep 8 hours per night during the school day
8 hours/night...................................100%
6.5 hours/night...................................?
6.5*100/8=81.25
the change in percentage is 100-81.25=18.75%
the percentage change is 18.75
if it is easier for you, another method is:
8-6.5=1.5 subtract the original amount to the new amount
1.5/8=0.1875 divide by the original amount
0.1875*100=18.75 find the percentage
Answer:
1
Step-by-step explanation:
what a tricky question.
pemdas- parenthesis, exponents, multiplication, division, addition, subtraction.
8/2(2+2)
add parenthesis first
8/2(4)
then multiply / distribute
2(4) is 8
finally
8/8 is 1
