Answer:
x
Step-by-step explanation:
just look at them what do they have in common?
Solve for the bracelet first.
x represents number of beads for bracelet
So it would be number of beads for the bracelet + number of beads for necklace (5x) and they both equal 192
x + 5x = 192
Then you would add the x and 5x.<br />6x = 192
Now all you have to do is divide by 6 on both sides.
6× ÷ 6 = 192 ÷ 6
You know have the number of beads it takes for a bracelet.
x = 32
to get the necklace all you need to do is multiply it by 5 because you need 5 times more for the necklace.
32 × 5
total beads needed is 160.
160
x+5x=192
6×=192
6x÷6=192÷6
x=32
necklace needs 32x5
beads per necklace is 160
Answer:
x=-2.25,y=-2.25
Step-by-step explanation:
The given system is
![4x - y = - 9 \\ 3x - 3y = 0](https://tex.z-dn.net/?f=4x%20-%20y%20%3D%20%20-%209%20%5C%5C%203x%20-%203y%20%3D%200)
We want to solve the system for x and y that makes the system true.
Let us multiply the first equation by 3 while maintaining the second equation:
![12x -3 y = - 27 \\ 3x - 3y = 0](https://tex.z-dn.net/?f=12x%20-3%20y%20%3D%20%20-%2027%20%5C%5C%203x%20-%203y%20%3D%200)
Subtract the current second equation from the first one.
![12x = - 27](https://tex.z-dn.net/?f=12x%20%3D%20%20-%2027)
Divide through by 12:
![x = - \frac{27}{12} = - 2.25](https://tex.z-dn.net/?f=x%20%3D%20%20-%20%20%5Cfrac%7B27%7D%7B12%7D%20%20%3D%20%20-%202.25)
From the second equation we have:
![3x = 3y](https://tex.z-dn.net/?f=3x%20%3D%203y)
This implies that:
![x = y = - 2.25](https://tex.z-dn.net/?f=x%20%3D%20y%20%3D%20%20-%202.25)
Answer:
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Step-by-step explanation:
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Answer:2 hours 15 mins = 2 1/4 hours
2 1/4 hours = 25 miles
1 hour = 25 ÷ 2 1/4 = 25 ÷ 9/4 = 25 x 4/9 = 11.1 miles
Answer: 11.1 mph
Step-by-step explanation: