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shari has 17 coins consisting of dimes and quarters worth $3.35. how many quarters and how many dimes does she have?

She has 11 quarters and 6 dimes.

Step-by-step explanation:

Let "d" represent the amount of dimes Shari has.

Let "q" represent the amount of quarters Shari has.

The amount a dime and a quarter can be represented by decimals.

.10 = a dime

.25 = a quarter

Write a systems of equations and solve.

.10d + .25q = 3.35

d + q = 17

I'm going to solve this using the substitution method.

d + q = 17

subtract "q" from both sides

d = 17 - q

Substitute 17 - q for "d" in the first equation.

.10(17 - q) + .25q = 3.35

Distribute

1.7 - .10q + .25q = 3.35

Combine like terms

1.7 + 0.15q = 3.35

Solve for "q"

Subtract 1.7 on both sides

0.15q = 1.65

Divide by 0.15 on both sides

She has 11 quarters.

Plug in 11 for "q" in the second equation.

d + 11 = 17

Subtract 11 on both sides

d = 6

She has 11 quarters and 6 dimes.

r and t.

both are 64 degrees.

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,