Answer:
Ancient Greeks
Beginning in the 6th century BC with the Pythagoreans, with Greek mathematics the Ancient Greeks began a systematic study of mathematics as a subject in its own right. Around 300 BC, Euclid introduced the axiomatic method still used in mathematics today, consisting of definition, axiom, theorem, and proof.
Step-by-step explanation:
Answer:

Step-by-step explanation:
We translate the phrase into an equation:

Then we simplify:

Answer:
Their were 42 kids on each bus.
Step-by-step explanation:
You have to divide the number of kids(210) by the number of buses.
Answer:
9/20
Step-by-step explanation:
Not hard. Multiply top and bottom by the other number. 3*3 = 9, and 4*5 = 20. so 9/20
Hi there! :D
<em><u>Answer:</u></em>
<em><u>2(2a+5)</u></em>
Step-by-step explanation:
Distributive property: a(b+c)=ab+ac
First, rewrite the problem down 10, and then 4.
10=5*2 or 2*5
4=2*2
2*2a+2*5
Finally you had to factor out by the common term of 2.
2(2a+5)
Hope this helps!
-Charlie
Thanks!
:D
:)