21-01-2020
Mathematics

contestada

The cost for 7 dance lessons is 82$. The cost for 11 lessons is 122$. Write and solve an equation to find the cost of 4 lessons

Respuesta :

opudodennis opudodennis

27-01-2020

Answer:

$52

Step-by-step explanation:

Using the equation

y=mx+c

82=7x+c

122=11x+c

11x-7x=122-82

4x=40

x=10

To get c

82=7(10)+c

82-70=c

c=12

For 4 lessons

y=10(4)+12=52

Answer Link

Otras preguntas

Who were the Hessians? A. Dutch soldiers who volunteered to help the British B. French cavalry hired by the Continental Army C. British sailors who chose to hel

which of the following would be the most important change in most women in saudi arabia? A)new styles of hijabs and sharshafs B)the right to vote C)the ability

Who believed in the Ten Commandments? A. Hebrews B. Egyptians C. Canaanites

Why do plants found at a different elevation on a mountain might differ

Complete the square: K^2 + 8k +12 = 0

Find ratio equal to 12:7

what does cuál la fecha de hoy mean in English

True or False The Crusades were religious wars.

how do you solve a question like this? This is how it starts... solve the equation; 4x-4=2x+10

Find ratio equal to 12:7