Let us take the second equation first
2a + 2b = 6
Dividing both sides by 2 we get
a + b = 3
a = 3 - b
Putting the value of a in the first equation we get
3a + 4b = 9
3(3 - b) + 4b = 9
9 - 3b + 4b = 9
b = 9 - 9
= 0
Now putting the value of b in the second equation we get
a + b = 3
a + 0 = 3
a = 3
So the value of the unknown variable a is 3 and the value of the unknown variable b is 0.
50% is 30, it’s half of 60. 25% is the same as dividing by 4, 60/4 is 15.
Question in English:
Tom has 2,021 gold coins. He divides them into piles containing consecutive numbers of pieces.
if it has more than two piles, how much is in the highest pile?
Plzzzzz give me Brainliest!!!!!
Answer:
an isosceles triangle
Step-by-step explanation:
it has two equal sides so this is isosceles triangle
Answer:
65 cups
Step-by-step explanation:
If she sold 10 more cups of lemonade than tea and sold 120 cups total. I first would subtract 10 cups from 120 =110. then I divide 110 /2 = 55 cups
The 55 cups makes it equal then I add the 10 cups back to the Lemonade to get 55+10 = 65
So your answer would be 65 cups of lemonade
