The most ancient mathematical texts came from mesopotamia and Egypt. The “inventors” of math are the Greek beginning in around the 6th century BC.
Answer:
24
Step-by-step explanation:
Let the number of mangoes owned by Tulsa be T and that by Julie be J
If Tulsa has 4 times as many mangoes as Julie then
T = 4J
Tulsa bought 6 more mangoes. She now has 5 time as many mangoes as Julie
T + 6 = 5J
Solve both equations simultaneously by substitution
4J + 6 = 5J
Collect like terms
6 = 5J- 4J
J = 6
Since
T = 4J
T = 4 * 6
= 24
Hence Tulsa had 24 mangoes at first
Answer: E
Step-by-step explanation: I used m.athway
You need to implement the process of "flip-flop" and multiply which is where you flip the second fraction and multiply.
÷
⇒
×
Now you multiply across. 2×15=30 and 3×11=33
So now it is
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To reduce to the lowest terms, find the GCF common factor
The GCF is 3
Divide both the numerator and denominator by 3
÷
=
Answer:
the first 4 sets of coordinates are (2,1) (3,5) (4,9) and (5,13)