Answer:
7 hamsters at 5 pesos each and 13 hamsters at 8 pesos each
Step-by-step explanation:
5x + 8y = 139
x + y = 20
x = 20 - y
5x + 8y = 139
5(20 - y) + 8y = 139
100 - 5y + 8y = 139
100 + 3y = 139
3y = 139 - 100
3y = 39
3y/3 = 39/3
y = 13
x + y = 20
x + 13 = 20
x = 20 - 13
x = 7
Answer:
x = 115
Step-by-step explanation:
x = 115 because of alternate exterior angles
So when you work with variables (x, y or any other letter), when they're beside a number it usually means to multiply.
So 3y can also be written as 3(3). So 3 multiplied by 3 is equal to 9
So now our problem looks like this,
x/9.
Since we already know what x is equal to, our problem will look like this
18/9.
So now all we have to do is divide.
18 divided by 9 is 2
So therefore, your answer is 2.
I hope this helps :)
Answers did you ever get this awnser??
Step-by-step explanation:
<span>in
2007, the world's population reached 6.7 billion was increasing at a rate of
1.2% per year. Assume that the growth rate remains constant.
Generalize the expression for the world's population for t years since 2007 is:</span>
<span>P(t)
= 6,700,000 (1.012)^t </span>
