Plz help me answer these questions i will mark you the brainiest 1) Gracie had some nickels and dimes in her purse totaling $1.65. She had 6 more dimes than nickels. How many coins of each type did she have?

2)Jimmy had $5.25 in nickels and quarters. If he had 15 more nickels than quarters, how many coins of each type did he have?

3)There were 180 students in attendance at the dance. If there were 32 more boys than girls at the dance, how many girls and boys were at the dance?

4)There were 293 tickets sold for a concert. Tickets purchased before the concert were $10, but tickets purchased at the gate were $15. The total ticket sales were $3495. How many people bought tickets before the concert, and how many purchased tickets at the gate?

Step-by-step explanation:

1)

Nickel: n = 5c, Dime: d = 10c

Equations as per given:

Substitute d:

2)

Nickels: n = 5c, Quarters: q = 25c

Equations as per given:

Substitute n:

3)

Boys = b

Girls = g

Equations as per given:

Substitute b:

4)

Tickets purchased at the gate: g = $15

Tickets purchased before the concert: b = $10

Equations as per given:

Substitute b:

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!

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step-by-step explanation: