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elena55 [62]
3 years ago
8

In a bag of counters, there are 3 times as many red counters as

Mathematics
1 answer:
Anni [7]3 years ago
7 0

Answer:

The ratio is 6:2:1.

Step-by-step explanation:

Let's denote:

Blue counter b

Red counter r

Yellow counter y.

There is given

r=3b (three times more red as blue) [1]

and

b=2y (twice more blue as yellow.) [2]

Now, replacing [2] to [1] gives

3*2y=r

6y=r.

Hence, the ratio is 6:2:1, because r=6y and b=2y.

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The product of the sum and the difference of two numbers equals the difference of their squares
Lisa [10]

(a+b)(a-b)=(a)(a)+(a)(-b)+(b)(a)+(b)(-b)\\\\=a^2-ab+ab-b^2=a^2-b^2

Used\ distributive\ property

8 0
3 years ago
Find the value of x. Round to the nearest degree.
qwelly [4]
What you should do in this case is to use the following trinonometric relationship:
 senx = C.O / h
 Where
 C.O: Opposite leg.
 h: hypotenuse.
 Substituting:
 senx = (7) / (9)
 Clearing x:
 x = ASIN ((7) / (9))
 x = 51.05755873
 Answer:
 The value of x is
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3 0
4 years ago
Solution q-2r=4<br> q+r=37
GenaCL600 [577]
Q-2r=4, therefore: q=4+2r.

Plug the value of q into q+r=37, so you get:

4+2r+r=37

3r=37-4=33

3r=33

Therefore: r=11.

q-2r=4, but r=11, so:

q-2(11)=4

q-22=4

Therefore q=26.

Check if the answer is correct using second equation:

q=4+2r=4+2(11)=4+22=26.

So: q=26 and r=11.


4 0
4 years ago
Read 2 more answers
What is 4067 divided by 56
Sergio039 [100]
The answer to 4067 / 56 is<span>72.625


</span>
6 0
4 years ago
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Evaluate 3^2 + (7 − 2) ⋅ 4 − 6 over 3
goldfiish [28.3K]

Answer:

7.7

Step-by-step explanation:

we basically follow the BEDMAS rule

1st we workout the bracket (7-2)=5

2nd the exponent 3^2=9

3rd the multiplication (7-2) . 4 = 5 . 4 = 20

4th addition 9+20=29

5th step is subtraction 29-6=23

the final step is dividing 23 by 3, which will become 7.7

6 0
3 years ago
Read 2 more answers
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