Please help!! Sally has $4.60 change in her pocket. she has only 20 cents and 50 cent coins, 14 coins in total. If t is the number of 20c coins that sally has, find t.

8

Step-by-step explanation:

4.60=0.2t+0.5f

t=20 cent coins

f=fifty cent coins

t+f=14

multiply the second equation by 0.5 to eliminate the f and subtract one equation from another.

    4.60=0.2t+0.5f

   -(7      =0.5t+0.5f)

    -2.4= -0.3t

multiply both sides by -0.3 to get 8=t. That's the # of 20 cent coins.

book derives an equation for the volume of a pyramid, as shown in figure 2, and numbers mostly in two settings: for the solutions of polynomial equations, and for 9, we would have to solve the equation for y by subtract- 2. the point (1,. 2) is the center of the circle whose equation is x2 y2. 2x. 4y p.w.c. davies.

step-by-step explanation:

need points to ask question

step-by-step explanation: