Answer:
9+x<12
Step-by-step explanation:
add 9 to an unknown number.
9+x
use the < less than symbol (instead of an equal sign) and write 12.
Answer:
0
Step-by-step explanation:
After the decimal point is the tenths place, and after the tenths place is the hundredths place.
After the decimal point is the number 0, which is at the tenths place. After the tenths place is 6, which is at the hundredths place.
Answer:
66
Step-by-step explanation:
Answer:
A = 340 adult.
C = 398 children.
Step-by-step explanation:
Let the number of children be C
Let the number of adults be A
Translating the word problem into an algebraic equation, we have;
A + C = 738 .......equation 1
1.5C + 2C = 1306 .......equation 2
A = 738 - C .......equation 3
Substituting eqn 3 into eqn 2, we have;
1.5(738 - C) + 2C = 1306
1107 - 1.5C + 2C = 1306
1306 - 1107 = 2C - 1.5C
199 = 0.5C
C = 199/0.5
<em>C = 398 children. </em>
Now, to find the value of A.
From equation 3;
A = 738 - C
A = 738 - 398
<em>A = 340 adult. </em>
Answer:
27 pages.
Step-by-step explanation:
Let l be the number of pages in the long paper and s be the number of pages in the short paper.
We have been given that the total number of pages for both papers is 40. We can represent this information in an equation as:

We are also told that the number of pages in the long paper is one more than two times the number of pages in the short paper. We can represent this information in an equation as:

We will use substitution method to solve system of linear equations.
From equation (1) we will get,

Upon substituting this value in equation (2) we will get,


Upon adding 2l to both sides of our equation we will get,



Let us divide both sides of our equation by 3 we will get,


Therefore, there must be 27 pages in the long paper.