What is the area of this parallelogram? A = 20 ft² A=2123 ft² A=3313 ft² A=4123 ft².
1 answer:
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Answer:
$1.70
Step-by-step explanation:
Let the number of nickels be .
Thus, by the problem statement, the number of dimes is [/tex] 8 \cdot x = 8x. [/tex]
Therefore, there are coins in total. To find what
is, we need to solve the equation
This can be done by dividing both sides by
which gives
. Plugging these values in tells us that there are
nickels and
dimes. (Test it out!) Thus, the nickels are worth
cents and the dimes are worth
cents, so in all, you have
cents which is $1.70.
Hope this helps :)
we are given
62% of the students take math
so,
49% take science
38% take both science and math
n(M∩S)=38
now, we can use union formula
n(M∪S)=n(M)+n(S) -n(M∩S)
now, we can plug values
and we get
n(M∪S)=62+49 -38
n(M∪S)=73
so,
the percentage takes at least one science or math course is 73%..........Answer