Step-by-step explanation:
4x+9y=28
-4x-y=-28
8y=0
divide both side by 8
y=0
solve for X in equation 1
4(X)-9(0)=28
4x-0=28
4x =28
divide both side by 4
4x/4=28/4
X= 7
y=0,x=7
Answer:
Each notebook costs $2
Step-by-step explanation:
We have to find the amount she spent on each notebook.
22-10=12
We know she spent $12 on six notebooks
We need to divide to find the answer
12/6=2
Each notebook costs $12
First, calculate the area of the square, which is 25
next, find the area of one half of the triangle by multiplying 2.5 and 4 (10), then dividing that by 2 (5).
since the two half’s of the triangle are symmetrical, just add 5 and 5 to get 10.
add the area of the triangle (10) and the square (25) to get the total area.
the answer should be 35
hope this helps!
Answer:
You can buy 6 tickets.
Step-by-step explanation:
21.8 + 26.6 = 48.4
48.4 x 2.50 = 121
121 / 17.50 = 6.914
Since we can't round here because it's items you're buying, we round down to the nearest flat number, which in this case is 6.
Answer:
36
Step-by-step explanation:
multiply the width & the height