Ok, so we need to set up a system of equations.
x + y = 19, where x is notebooks and y is pencils
2.2x + 1.09y = 30.70. You use the coefficient for individual prices and the total for the total given.
2.2x + 2.2y = 41.8 (multiply for elimination later)
2.2x + 1.09y = 30.7
1.11y = 11.1
y = 11.1/1.11
y = 10
Now we use the substitution method in x + y = 19
x + 10 = 19
x = 9
9 notebooks and 10 pencils
Answer:
c
Step-by-step explanation:
just look at 11 1/4, which is equals to 11 2/8. she recorded 3, and c is the only one which corresponds :) lmk if im wrong tho, the picture is kind of blurry
Answer:
Step-by-step explanation:
He has 25 tons of stone with him initially. Since he needs to repay two loans, one of 6 tons of stone and another of 4 tons, then the number of tons of stones that he needs to repay as loan is 4 + 6 = 10 tons
The number that he has left is 25 - 10 = 15 tons of stone
Since the company wanted to give him 40 tons but lost 14 tons, the amount that he received is 40 - 14 = 26 tons of stone
Therefore, the number of tons of stone that he will have left to make his block out of is
15 + 26 = 41 tons of stone
Answer:
6.834 x 10^-6 meters
Step-by-step explanation:
Answer:
a. 2x+5y=50
b. (25,0), the number of tennis shoes needed to weigh 50 pounds.
c.(0,10), the number of boots needed to weigh 50 pounds.
Step-by-step explanation:
a. Weight times number is what we are looking for to add up to the total weight of the shoes
b. set to y to 0
c. set x to 0
