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WINSTONCH [101]
4 years ago
12

Kevin has 4.85 in nickels and dimes. if he has fewer dimes than nickels, how many coins does he have altogather?​

Mathematics
1 answer:
tamaranim1 [39]4 years ago
3 0

Answer:

49 coins.

Step-by-step explanation:

It takes 10 dimes to equal a dollar, therefore fourty dimes equals four dollars.

Eight more dimes for the eighty cents, and one nickel for the 5 cents.

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The spokes of a bicycle wheel form 10 congruent central angles. The diameter of the circle formed by the outer edge of the wheel
Yuki888 [10]

Answer:

5.6 inches.

Step-by-step explanation:

The length of the outer edge of the wheel between two consecutive spokes is given by;

l=d\sin(\frac{\theta}{2} )

where d=18 inches.

and

\theta=\frac{360\degree}{10}=36\degree is the central angle.

We substitute the values to obtain;

l=18\sin(\frac{36\degree}{2})

l=18\sin(18\degree)

l=5.562305899

l=5.6 inches to the nearest tenth.

8 0
4 years ago
Which three lengths could be the lengths of the sides of a triangle?
Bezzdna [24]

Answer:

None of the sides can be a triangle.

Step-by-step explanation:

3 0
3 years ago
In the function f(x) = 5(x2 − 4x + ____) + 15, what number belongs in the blank to complete the square?
Georgia [21]
If you would like to find the number which belongs in the blank to complete the square, you can calculate this using the following steps:

f(x) = 5(x^2 - 4x + a) + 15
a ... the number = ?

<span>x^2 - 4x + a = (x - 2)^2 = x^2 - 4x + 4
</span>a = 4

The correct result would be 4.
5 0
3 years ago
Read 2 more answers
"write the standard form of the equation of the circle with radius 7 and center at (0, 0)."
Leviafan [203]

Try this solution:

1. the standart form of the circle is: (x-x₀)²+(y-y₀)²=r², where point (x₀;y₀) - the cetre of the given circle, r - radius of the given circle.

2. Using r=7 and coordinates of the centre (0;0) it is possible to make up the required equation:

(x-0)²+(y-0)²=7²;

x²+y²=49.

7 0
3 years ago
What is the value of x in the equation X - 2.6 = 1.8?
Ivenika [448]

Step-by-step explanation:

Given

x - 2.6 = 1.8

x = 1.8 + 2.6

x = 4.4

Hope it will help :)

7 0
3 years ago
Read 2 more answers
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