dolphinsarethebest20 dolphinsarethebest20

24-04-2021
Mathematics

contestada

Sarah will take 8 algebra tests. On the first 7, Sarah's scores were 79, 86, 92, 89, 87, 80, and 82. What will Sarah need to score on the 8th test to have an average grade of 86?

Respuesta :

welvis423 welvis423

24-04-2021

Answer:

Step-by-step explanation:

Let represent the score on Sarah's last test.

The average of her 8 test scores is 86.

This means:

(79+86+92+89+87+80+82+x)/8 =86

595+x=688

x=93

Answer Link

Otras preguntas

Even when the temperature of a pan of water is less than the boiling point, water still evaporates. This is because a. the speeds of individual molecules varies

below is the graph of the equation y=-|x-2|+2. useless craft to find all the values of x such that... y>0

Roy hit 3 less than 4 times the number of balls during baseball practice than Joe did. Together the boys hit 52 balls. How many balls did Joe hit?

Why do you think totalitarian societies were more common after the period of decolonization in Asia?

11 The coordinates of the triangle are A(0, 3), B(6,0), C(0, -3), determine the coordinates of its image after a dilation of 1/3 as a scale factor. * (2 Points)

sheeeeeeeeeeesh math ixl

In a pet shop, there are 3 hamsters for every 2 guinea pigs, and there are 2 giant cloud rats for every 3 guinea pigs. If N is the total number of hamsters, gui

What is the relative humidity when the dry- bulb temperature is 16°C and the wet-bulb temperature is 14°C?

i have 3 hands with one head what am i ?

The number of tenths in 3 3/10