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Let's represent our number of quarters with q and our dimes with d. We know that each q has a value of 0.25, and each d has a value of 0.1. This means that 0.25q+0.1d=1.85. We also know that q+d=11 as there are 11 total coins.
Here is our system of equations.
0.25q+0.1d=1.85
q+d=11
We are asked to solve with elimination. To do this, we need combine the equations to cancel out a variable to solve for the other. We have 1d on the bottom. Let's multiply the entire top equation by -10 to get a -1d on the top so we can do this.
-2.5q-d=-18.5
q+d=11
We combine the equations.
-1.5q=-7.5
We divide both sides by -1.5
q=5
Since there are 11 coins in total, this means that there are 5 quarters and 6 dimes.
Have a wonderful day!
Answer:
-12
Step-by-step explanation:
U 2 can help me by marking as brainliest.........
3/6 and 1/2 I hope this helps sorry if it doesn't
The sum of 2.54 x 1019 and 3.218 x 1017. 3.2434 x 1036 2.57218 x 1036 3.2434 x 1019 2.57218 x 1019 is 17811.9829.
As in the given problem we can see that multiplication of decimal number followed by summation is given so we an do it by parts.
The first part is 2.54*1019=2588.26
3.218 x 1017=3272.706
3.2434 x 1036= 3360.1624
2.57218 x 1036= 2664.77848
3.2434 x 1019=3305.0246
2.57218 x 1019=2621.05142
The sum is 17811.9829.
learn more about Sum here:
brainly.com/question/13013054
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Answer:
#3 is not a function
Step-by-step explanation:
One input only has one output.
but #3, input (3) has 2 outputs (4 and 6)
#3 is not a function
