In Frank's piggy bank, there are only quarters and dimes. He has 37 coins, and has a total of
$5.50. How many quarters does he have?

12 quarters

Step-by-step explanation:

number of quarters x

number of dimes y

therefore, x + y = 37times 10 both sides 10x + 10y = 370equation 1

              0.25x + 0.1y = 5.5 times 100 both sides 25x + 10y = 550 equation 2

equation 2 minus equation 1 is 25x + 10y - 10x - 10y = 550 - 370 15x = 180 x = 12

there are 12 quarters

option a, c,d are correct.

step-by-step explanation:

from the given figure, it is given that z is equidistant from the sides of the triangle rst, then from triangle tzb and triangle szb, we have

tz=sz(given)

bz=zb(common)

therefore, by rhs rule,δtzb ≅δszb

by cpctc, sz≅tz

also, from δctz and δasz,

tz=sz(given)

∠tcz=∠saz(90°)

by rhs rule, δctz ≅ δasz, therefore by cpctc, ∠ctz≅∠asz

also,from δasz and δzsb,

zs=sz(common)

∠zbs=∠saz=90°

by rhs rule, δasz ≅δzsb, therefore, by cpctc, ∠asz≅∠zsb

hence, option a, c,d are correct.

part a

in a city ice cream is mostly only bought when the temperature is very high as ice cream cools down our

so we can derive the conclusion that as the temperature increases the number of ice creams sold also increases

part b

y intercept is 5

slope is 2

happy to

pls mark as brainliest