Am I stupid?

Family Member GCSE help

Got a family member who is doing his mock exams at the moment for revision. This is the only page he can’t get his head around, simply because the numbers don’t balance out. The total number of people asked doesn’t match with the number of people on the Venn diagram unless a miraculous -4 people enjoy reading. Is this a printing error or some kind of new maths I haven’t heard about yet?

A couple of people have suggested alternate ways to work it out but nothing seems like a nice, round answer that doesn’t have some form of number fudging. Any ideas?

Also, sorry if the flair is wrong! I will happily change it if need be, I’m from the UK so just had to guess!

Please explain the method you used in the answer

​

Hey 👋

Am I correct in thinking this won’t self-terminate? And if so, how do you judge when you’ve divided long enough that, without a discernible pattern, it’s okay to stop?
Is there a rule for this is standard-schools? Thank you so much for any help as always!!!

I’m really behind so can someone explain how to simplify this radical in-depth please? I don’t can’t any pairs or nothing.

How can I find the coordinates of C in this image?

It's been a while since I've done this and trying to help my daughter.

I’m helping my kids with their homework. Does anyone know the answers for b and c? I know range means from…to…, but the provided answers are 123 degrees and 235 degrees

Need help with my sons 6th grade math homework - unit rates

Okay so I understand the concept of this but I just can’t figure out this written problem. He originally wrote 9.5 but obviously that’s not right. His teacher added the comments in the 2nd picture. Please help me in how to solve this!

Sorry for second post couldn't add photo to last post and got stumped again. Thank you all for the help. It wouldn't be supplementary because there's 3 angles. It's also not complementary because it's not 90 degrees.

Hello, My Teacher put a question on our quiz recently for Extra Credit. It went like this "If you threw a object without a wall bouncing it back or a person throwing it back how fast would it have to go for it to me back" It sounded confusing for the entire class, but I assumed it used the Vertical Motion Model (h = -16t2 + vt + s) But that's only my assumption. Could you take crack at it?

Show that:
GCD(a,b) = GCD(5a+2b,7a+3b)

I only know that if we call GCD(5a+2b,7a+3b) = d

Then a is divisible by d

Because 5a+2b and 7a+3b is also divisible by b then:

3(5a+2b) and 2(7a+3b) or 15a+6b and 14a+6b is also divisible by b

Thus (15a+6b) - (14a+6b) = a(divisible by d)

Same thing applies to b:

7(5a+2b) and 5(7a+3b) or 35a + 14b and 35a + 15b divisible by b then:

(35a + 15b) - (35a + 14b) = b(divisible by d)

Thus: CD(a,b) (or GCD bc idk this part) = d(because a,b is divisible by d)

Can you guys help me the rest part?