How do I solve this problem?

Mathematics

1 answer:

MakcuM [25]3 years ago

4 0

Remember mᵃ.mᵇ = mᵃ⁺ᵇ (m and m should be the SAME)

And m⁻ᵃ = 1/mᵃ

Hence

(a⁴.b⁻²).a³ = b⁴/a⁵

a⁴⁺³.b⁻² = b⁴/a⁵

a⁷./b² = b⁴/a⁵

Cross multiplication:

a⁷.a⁵ = b⁴.b²
a⁷⁺⁵ = b²⁺⁴
a¹² = b⁶

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A group of friends went to the movies. Movie tickets cost $8.50 each. One of the group bought some food for $6.50. The group spe

Liula [17]

Answer:

Equation: $8.5t+6.5=57.5$

Solution: $t=6$

Step-by-step explanation:

Let be "t" the number of movie tickets bought by the group of friends.

According to the information given in the exercise, the price of each movie ticket is: $8.50.

Then, you can represent the amount (in dollars) the group of friends spent in movie tickets, with this expression:

$8.5t$

You know that one person spent $6.50, then the expression that represents the total amount (in dollars) the group of friends spent in food and movie tickets, is:

$8.5t+6.5$