A collection of coins nickels and quarters is worth $1.25 . There are 13 coins in all. How many of each are there?
1 answer:
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Answer:
Slope = -2
Step-by-step explanation:
Since, slope =
Rise = -(y-intercept)
Run = (x-intercept)
From the graph attached,
y - intercept = -(4) = -4
x - intercept = 2
Therefore, slope the line given in the graph attached will be,
Slope = = -2
Slope = -2
Answer:
If we assume that everyone in the group is an owner, we would have
legs.
legs
Therefore, we need 24 more legs.
These 24 additional legs can be made from the difference of legs between the owners and dogs.
In this case, dogs have more legs than an owner.
24 ÷ 2 = 12.
There are 12 dogs in the group.
[ Answer ]
[ Explanation ]
- Formula For Area Of Trapezoid:
-----------------------------------------
A = 10
B = 18
H = 6
- Plug Numbers Into Equation:
- Solve
10 + 18 = 28
28 ÷ 2 = 14
14 · 6 = 84
- Final Answer
84