Answer:
320 crayons per class
Step-by-step explanation:
the school bought 25 boxes...each containing 64 crayons.....so that a total of (25 * 64) = 1600 crayons.
so 1600 crayons and it has to be split equally 5 ways...
1600 / 5 = 320 crayons per class
If your looking for basically the definition of ratio it means, lets say we have 2 can of milks, and 3 cans of cookies, if it asks find the ratio of milks first then cans it is 2:3, or if it asks find the ratio of cans of milk to cookies, which is 3:2 or part to whole which means 3+2 or 2+3= 5 is whole and if they say part would be milk then 2:5 or if its cans of cookies to whole its, 3:5. I hope this helps ask me anything that you didn’t understand!
Hey there! I'm happy to help!
A permutation is focused on a specific order, while a combination is not focused on the order but on the content of what is grouped.
AB and BA are different permutations because they are in different orders, but they are the same combination because they both contain the letters A and B.
So, we see that AB and BA are one combination.
AC and CA are also another combination because they are made up of the letters A and C.
Same goes for BC and CB, this is also one combinations.
This totals up to C. 3 combinations. Now you know the difference between permutations and combinations!
Have a wonderful day!
Answer:
Step-by-step explanation:
Given: △ABC, BC>AC, D∈ AC , CD=CB
To prove: m∠ABD is acute
Proof: In ΔABC, the angle opposite to side BC is ∠BAC and the angle opposite to side AC is ∠ABC.
Now, it is given that BC>AC, then ∠BAC>∠ABC.. (1)
In ΔBDC, using the exterior angle property,
∠ADB=∠DBC+∠BCD
∠ADB=∠DBC+∠BCA
⇒∠ADB>∠BAC (2)
From equation (1) and (2), we get
∠ADB>∠BAC
⇒∠ADB>∠ABC
⇒DB>AB
Hence, m∠ABD is acute
Answer:
1. 1/7
2. 1/5
3. 5/7
4. 5/6
5. 1/3
6. 2/5
7. 2/3
8. 3/7
9. 1/10
10. 4/7
Step-by-step explanation:
Hope this helps!
