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Art [367]
3 years ago
15

The ratio of coins to notes in a bag is 3 to 8. If there are a total of 24 coins then how many notes are there? 

Mathematics
1 answer:
BaLLatris [955]3 years ago
8 0
Set up a proportion 
3 coins:8 notes and then the other one 24 coins : x (unknown notes)
they have a relationship so we can set them equal to each other.
3/8=24/x cross multiply: 8 * 24 = 192
Now divide that by 3: 192/3 = 64 
So there are 64 notes in the bag
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Please help it would be very appreciated!!
Leto [7]

Answer:

answer is 24.56cm

perimeter of half/semi circle =  \pi r + 2r

<em>one semi circle semi circles perimeter:  </em>\pi<em>*2+2*2 =10.283cm, </em>

<em>for two semi circles= 2*10.283 =20.566cm</em>

without the line below for two semi circle: 20.566-4-4=12.566 cm

both da side of rectangle is 6cm+6cm=12cm

now add the 12.566+12=24.56cm

7 0
3 years ago
Read 2 more answers
Find x inscribed angles
mina [271]
The easiest variable you can solve for first is "z". Knowing that opposite angles of a quadrilateral inscribed in a circle are supplementary, subtract 93 from 180 to get z.
Z should equal 87.
The next variable we can solve for is "x". We know that inscribed angles are half the measure of their intercepting arc, so we know 93 is half of (112 + x). The equation would look like this:

93= (112 + x)/2
Multiply both sides by 2
186 = 112 + x
Subtract 112 from both sides
74 = x

Now we can apply the same method we used to find "x" to find y. Set up an equation like this:
80 = (y + x)/2
Substitute the value of x in
80 = (y + 74)/2
Multiply both sides by 2
160 = y + 74
Subtract 74 from both sides
86 = y

Hope this helps!
5 0
3 years ago
How many miles are in 8,216 feet​
GarryVolchara [31]

Answer:

1.556061

Step-by-step explanation:

you need to divide the length value by 5280

3 0
3 years ago
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Find the measure of the missing angles.
dezoksy [38]

Answer:

y=90 degrees

x=51 degrees

Step-by-step explanation:

all right angles are 90 degrees

90+39=129

180-129=51

8 0
2 years ago
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There is 144 ppl in an audiance the ratio of adults to kids is 5 to 3 how many adults are there
Sergio [31]
By addition of the ratio, 5/8 people are adults
144 * 5/8 = 90
4 0
3 years ago
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