I’m guessing that this is for systems of equations?
n - nickels
d - dimes
These are the equations you start off with.
n = 5d-2
0.95 = 0.10d+0.05n
Substitute the top equation for n into the variable n in the bottom equation.
0.95 = 0.10d+0.05(5d-2)
Solve for d.
0.95 = 0.10d+0.25d-0.10
1.05 = 0.35d
3 = d
Substitute d into the top equation and solve for n.
n = 5(3)-2
n = 15-3
n = 12
There are 3 dimes and 12 nickels in the coin purse! Hope this helped <3
Answer:
Step-by-step explanation:
Note that closed dot means that it is included inside. Look at the direction of the arrow, it will give you the knowledge of which way the sign will face.
10) x ≥ -1, or (4)
Note that the point is at -1 (-1), The arrow is also traveling towards the greater side (>). Note that the dot is 'colored in', or closed. If the dot is closed, the number the dot is on is included inside, leading to the sign having an equal sign on the bottom.
11) -4 ≤ x < 2, or (2)
As stated above ≤ means <em>closed dot</em> (or included). x is greater than -4, and so -4 is ≤ x. However, note the dot on the 2. It is not colored in. This means that 2 is not included inside the solution, leading to the usage of <.
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<em>~Rise Above the Ordinary</em>
Answer:
No.
Step-by-step explanation:
Since we do not know the location of each house in relation to the school, we cannot figure out who is goona arive faster
Answer:
3 friends played golf
Step-by-step explanation:
33-12=21
21/7=3
Answer:
560 dinners
Step-by-step explanation:
First, find the amount of ounces by multiplying 350 pounds by 16 since every one pound is 16 ounces. 350×16=5600. That means there are 5600 ounces of meat. Therefore, to find the amount of steaks that can be served, divide 5600 divided by 10. 5600÷10=560.
