Which equation has a constant of proportionality equal to 0.250.250, point, 25? Choose 1
Choose 1

(Choice A)
A
y=25xy=25xy, equals, 25, x

(Choice B)
B
y=\dfrac{5}{2}xy=
2
5

xy, equals, start fraction, 5, divided by, 2, end fraction, x

(Choice C)
C
y=\dfrac{1}{4}xy=
4
1

xy, equals, start fraction, 1, divided by, 4, end fraction, x

(Choice D)
D
y=\dfrac{1}{25}xy=
25
1

xy, equals, start fraction, 1, divided by, 25, end fraction, x

...

Step-by-step explanation:

associative property of multiplication

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!