After 5 tests, her average was 88. To have a seven-test average of 90, the total must be:
Her average after 5 tests was 88. Her total score on the 5 tests is:
Subtract:
Find the average by dividing by 2:
Her average must be 95
Solve the proportion/percent problem:
1 answer:
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For this case we have the following data:
The original dimensions of the drawing are:
- Width: 3cm
- Height: 5cm
If the copier zoom is at 120%, we can find the new dimensions of the drawing by making a rule of three:
Width:
3 ----------> 100%
x ----------> 120%
Where x represents the new width of the drawing:
Long:
5 ----------> 100%
y ----------> 120%
Where y represents the new long of the drawing:
Thus, the new dimensions are 3.6 cm wide and 6 cm long
Answer:
the longer dimension of the new drawing is 6cm