Ask question

Ask question

All categories

4 years ago

12

Here is an easy puzzle:

1 answer:

galina1969 [7]4 years ago

4 0

The answer is
date
1 2 3 4 5 31
r1 r2 r3 r4 r5 . . . r31
1gm 2gms 3<span>gms 4gms 5gms . . . 31gms

r1+r2+ .... +r31= 31(31+1) /2=496gms (31 rings)

he only made 5 rings

31 rings----------> 496 gms
5 rings ------------> ? = 5 x496 / 31=80 gms

</span><span> the weights of those 5 rings was 80 gms</span>

You might be interested in

Rearrange this to make a the subject

stellarik [79]

Answer:

$a = \frac{w + 4 - 3b}{6}$

Step-by-step explanation:

$w = 3(2a + b) - 4 \\ w + 4 = 6a + 3b \\ w + 4 - 3b = 6a \\ \frac{w + 4 - 3b}{6} = \frac{6a}{6} \\ a = \frac{w + 4 - 3b}{6}$

Thanks

hope this helps!!

I'd appreciate if you rate my answer and give a thanks.

5 0

4 years ago

Please help me!! Solve for 'a'. <br> b=(4*a)-3<br> ----------<br> 4

lilavasa [31]

here u go! i hope this is correct :)

8 0

3 years ago

Read 2 more answers

Someone please say the correct answer!

algol [13]

2nd, 4th, and 5th answers are correct

8 0

3 years ago

What is the length of one leg of the triangle? 64 cm 64 StartRoot 2 EndRoot cm 128 cm 128 StartRoot 2 EndRoot cm.

zmey [24]

Answer:

Use the Pythagorean theorem for right triangles to solve this

a^2 + b^2 = c^2 where 'a' and 'b' are the legs of the triangle and 'c' is the hypotenuse

so:

8^2 + b^2 = 17^2 solve for the second leg, b

64 + b^2 = 289

b^2 = 289 - 64= 225

b = 15

7 0

3 years ago

Find the sum 18,997.9 + 421.19

Igoryamba

Answer:

19,419.09

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers