Your next math test is worth 111 points and contains 32 problems. Each problem is worth either 4 points or 3 points. How many 3
point problems are on the test
2 answers:
There are 17 three point questions
Use a systems of equations
x+y=32
4x+3y=111
x+y=32 equals x=-y+32 substitute that into the other equation
4(-y+32)+3y=111
-4y+128+3y=111
-y+128=111
-y=-17
y=17
since y was used as “3y” that is the variable used for the 3 point questions, so there are 17 3 point questions
You might be interested in
Angle D is 60° because it is a supplementary angle, meaning 180 (straight line) - 120 (angle A) = 60°
Answer:
A of the shaded figure is 90cm
Answer:
True
Hope this helps. Have a great day. :)
-wfz
ANSWER BELOW
Combine like terms
8x + 71 = 7
Subtract the 71 to get x all alone
8x = -64
Divide by 8
X= -8
Answer:
Concept: Unit Price & Algebraic Representation
- You have 12 oz
- You have a total price of 2.10
- Hence you divide 2.10/12
- Your result to the nearest tenth is 0.2
- Rate positively and give brainlist
