Apile of 34 c oins consists of nickels and dimes. the total value of the coins is $3.30. find the number of each type of coin.

SaY tHaT tHeRe ArE N nIcKeLs

Then there are 34-N dimes

Lets make an equation:

0.05N+0.1(34-N)=3.30

0.05N+3.4-0.1N=3.3

-0.05N=-0.1

N=10

D(dimes)=34-10

D=24

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°