2. Mr. Lavi determined that the total cost of his son's birthday party, c, could be represented by

Mathematics

1 answer:

Tresset [83]3 years ago

4 0

Answer:

41 people attended the party

Step-by-step explanation:

$1120 = 20x + 300$

$1120 - 300 = 20x$

$820 = 20x$

$x = 41$

You might be interested in

The area of a rectangle is 99 square inches. What is the new area of the rectangle if the height were five times long and the ba

garri49 [273]

Answer:

330 square inches

Step-by-step explanation:

99 x 5 =495

495 x 2/3 =330

8 0

3 years ago

How do I write a compound inequality?

ss7ja [257]

Answer:

it can either be written as x > -1 and x < 2 or as -1 < x < 2.

Step-by-step explanation:

The graph of a compound inequality with an "and" represents the intersection of the graph of the inequalities. A number is a solution to the compound inequality if the number is a solution to both inequalities. It can either be written as x > -1 and x < 2 or as -1 < x < 2.

6 0

3 years ago

A study on the latest fad diet claimed that the amounts of weight lost by all people on this diet had a mean of 23.2 pounds and

erica [24]

Answer:

The standard deviation of the sampling distribution of sample means would be 0.8186.

Step-by-step explanation:

We are given that

Mean of population=23.2 pounds

Standard deviation of population=6.6 pounds

n=65

We have to find the standard deviation of the sampling distribution of sample means.