cruzliliana67
cruzliliana67
12-11-2017
Mathematics
contestada
May someone please help with 33.?
Respuesta :
MathisLif3
MathisLif3
12-11-2017
2x+3y=50
x+y=21
where x,y are 2pt and 3ptrs
y=21-x
2x+3(21-x)=50
2x+63-3x=50
-x=-13
x=13
so 13+y=21 => y=8
Check 2*13+3*8=50 yuup
they had 13 2ptrs and 8 3ptrs
Answer Link
VER TODAS LAS RESPUESTAS ( 92+ )
Otras preguntas
Determine which of the following points on the line Y=2x+5
Help me pleazzzzzzzzeeeeeee
A circle with a center at (5,-2) also has the point (8,2) that lies on the circle. What is the equation of the circle?
The composite shape has an area of 136cm^2 What is the height of the trapezoid
National Public Diplomacy operates at which level(s) or scope of public relations?
Bag A contains 3 white marbles and 2 red marbles. Bag B contains 6 white marbles and 3 red marbles. A person draws one marble from each bag. Find the probabilit
which expression is equivalent to sqrt(2x^5/18)? Assume x greater than or equal to 0
An object is thrown vertically upward at 27.1 m/s. The velocity of the object 3.4 seconds later is ____ m/s. Round your answer to the nearest tenth. Do not use
Do 9, 12, 14 form a right triangle
The chemical reactions that cells use to acquire and use energy to live, grow an reproduce are called
