Suppose that Tom has x quarters. Since Tom has 16 coins in all, the rest of the coins, 16 - x of them, must be nickels.
The value of x dimes is 0.25x dollars (since each quarter is 25 cents), and the value of 16 - x dimes is 0.10(16 - x) (since each dime is 10 cents). The total value of these coins, in dollars, is:
0.25x + 0.10(16 - x).
Since these coins are worth $2.50, we have the equation:
0.25x + 0.10(16 - x) = 2.50.
Solving this yields x = 6. Therefore, Tom has 6 quarters and 16-6 = 10 dimes.
I am doing the same thing
3/5x
= 60%
Step-by-step explanation:
Assume that P<u>arcel 2</u> is assigned <u><em>x </em></u>acres; <u>Parcel 1 </u>will be <em><u>2x</u></em> (because its twice as large as parcel 2).
Therefore if the farmer has planted on 30% on parcel 2;
30/100 * 2x area
60/100x
=3/5x
Parcel 1 ;
60/100 * x area
60/100x
3/5x
The total area planted =
(3/5x + 3/5x ) /2
= 3/5x
3/5 * 100
= 60%
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Answer:
16
Step-by-step explanation:
The ratio fo the lengths of the sides of a 30-60-90 triangle is
short leg : long leg : hypotenuse
1 : sqrt(3) : 2
In a 30-60-90 triangle, the length of the short leg is the length of the long leg divided by sqrt(3).
The length of the short leg is 8 cm.
The length of the hypotenuse is twice the length of the short leg.
g = 2 * 8 cm = 16 cm