Four families went out for lunch. The total food bill came to $220. The families also left a $30 tip for the waitress.

If each family spent the same amount, about how much did each family spend on dinner? Complete the explanation on how you found your answer.

First, add $
and $30 to find the total bill.

$
is between $
and $
, but closer to $
. $
× 4 = $240, so each family spent about $
on lunch.

$250 Dollars.

All 4 families together spent 1,000 Dollars.

ALL FAMILIES SPEND 1000 DOLLARS

$ 250 DOLLARS

50! POINTS! HELP QUICK!
Which of the following is the equation for the graph shown?

y squared over 4 minus x squared over 12 equals 1
y squared over 16 minus x squared over 12 equals 1
x squared over 4 minus y squared over 12 equals 1
x squared over 16 minus y squared over 12 equals 1

50 points!

10=2x+12
What’s the steps

Help! I need to answer this on edge

The inverse of G(x) is a function.
A. True
. B. False

what is the name of the polynomial 7x+1 ?

Sean traded 1/7 of his baseball cards. What percentage of his baseball cards did Sean trade?

What is the prime factorization of 120

A beetle was running along a number line...The the bug ran from 13 to 57. What distance did it cover?If it took the bug 5 seconds, what was its average speed?

173 The midpoint between x and a is m. What is x ?

Why rotation, reflection, and translation are rigid motion?

Plzzz help me I am
Timed!

A fair die, with its faces numbered from 1 to 6, is one in which each number is equally likely to land face up when the die is rolled. On a fair die, the probability that the number 6 will land face up is 16. A group of students wanted to investigate a claim about manipulating a fair die so that it favors one outcome. The claim states that if a fair die is put into an oven and baked at 200°F for 10 minutes, the inside of the die will begin to melt. When the die cools, the inside will be solid again, but with more weight toward the bottom. This shift in weight will cause the face that was up when the die cooled to land up more often that the other faces.
The students obtained a fair die and baked it according to the preceding directions. The die cooled with the number 6 face up. After the die cooled, they rolled the die 200 times, and the number 6 landed face up 43 times. Let p represent the population proportion of times the number 6 will land face up on the baked die if the die could be rolled an infinite number of times.
(a) Clarke, one of the students, constructed a 95 percent confidence interval for p as 0.215±0.057. Does the interval provide convincing statistical evidence that the number 6 will land face up more often on the baked die than on a fair die? Explain your reasoning.
(b) Aurelia, another student, suggested they conduct a significance test to investigate the claim. She tested the hypotheses H0:p=16 versus Ha:p>16 at the significance level of α=0.05. She obtained a test statistic of 1.83 with a p-value of 0.033. Do the results of the significance test agree with the results of Clarke’s confidence interval in part (a)? Explain your reasoning.
(c) Joachim, a third student, noted that the confidence interval in part (a) gives plausible values of the parameter as an interval between two values. He suggested that they develop a one-sided confidence interval because they were only concerned with whether the number 6 was landing face up more often than expected, not less often. The one sided-interval will determine a value L such that all plausible values of p are greater than L. The formula for L is L=pˆ+z∗pˆ(1−pˆ)n−−−−−√.
(i) Determine the values of z∗ needed to create the one-sided 95 percent confidence interval. Then calculate the value of L.
(ii) Do the results of Joachim’s one-sided confidence interval agree with results of Aurelia’s significance test in part (b)? Explain your reasoning.

What is the greatest common factor of all the terms: 6m and 18

In a class of 40 students, the number of girls is 10 more than the number of boys. We have to find the number of girls and the number of boys in the class.

Let’s represent the number of girls by g, and the number of boys by b. Write the pair of linear equations you will get in g and b :

989.5 rounded to the nearest whole number

help me I'm really swamped​

One Positive number is five times another number the difference between the two numbers is 172 to find the numbers

A minibus sets off at 7.30 am and arrives
at its destination at 11.45 am.
How long did the journey take?

The total area of a rectangle is represented by (x²+9 x+18) sq units.Find the expression for the dimensions of the rectangle.​

What is the reciprocal of 56/87?

A trapezoid has a base of 5cm, a height of 4cm. What is the area?

A square playpen has sides that are 4 feet long. What is the playpen's area?

Marcos has 15 coins in nickels and quarters. He had 3 more quarters than
nickels. How many nickels and quarter does he have?

x2y when x = - 3/4 and y = 8/15

Can you find the slope-intercept equation of each line and type the correct code? Please remember to type in ALL CAPS with no spaces.

HEPL A BROTHER OUT PLS 18 POINTS

Hurry I really need it I have a timer

Ryan has 3.25 pounds of hamburger. How many 0.25 pound hamburgers can he make?

Help Please!!!!!!!!!!!!
Graph x>4.

A study has been made to compare the nicotine contents of two brands of cigarettes. Ten cigarettes of Brand A had an average nicotine content of 3.1 milligrams with a standard deviation of of 0.5 milligram, while 8 cigarettes of Brand B had an average nicotine content of 2.7 milligrams with a standard deviation of 0.7 milligram. Assuming that the two sets of data are independent random samples from normal populations with equal variances, construct a 95% confidence interval for the difference between the mean nicotine contents of the two brands of cigarettes.