Apiggy bank at the flea market has 5 more than double the number of dimes than quarters. the money in the piggy bank is worth $7.70. how many dimes and quarters are in the piggy bank?

Let d represents the dimes and q represents the quarters.

As per the statement:

A piggy bank at the flea market has 5 more than double the number of Dimes than quarters.

⇒q = 2d +5       ......[1]

It is also given that: The money in the piggy bank is worth $7.70.

⇒        ......[2]

Substitute equation [1] into [2] we have;

Combine like terms;

Subtract 5 from both sides we get;

Divide both sides by 3 we get;

Substitute the values of d in equation in [1] we get;

q = 2(0.90) +5 = 1.80 + 5 = $6.80

Therefore, the dimes and quarters are in the piggy bank is $0.90 and $6.80

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.