"In standard form" LOL JK BE MORE SPECIFIC DUDE
Answer:
Step-by-step explanation:
this ratio of (1/8) to (1/4) can be written as a fraction
however, since we want to find out how much salt is needed for one teaspoon of baking soda, salt is the numerator (top) of the fraction and baking soda is the denominator (bottom) of the fraction
(1/8)/(1/4)
(1/8)x(4/1) when you divide fractions the second fraction switches the top and bottom
(1/8)x4
4/8
1/2
1/2 or 0.5 teaspoons of salt are needed per teaspoon of baking soda
Answer:
miles driven by sam =215 miles
Miles driven by Tony = 305 miles.
Step-by-step explanation:
Let the miles driven by sam is x
given that Tony drove 90 miles more than sam
miles driven by Tony = miles driven by sam + 90 = x + 90
Total miles driven by them together
= miles driven by Tony + miles driven by sam = x + 90 + x = 2x + 90
given
Tony and Sam are sharing the driving on a 520-mile trip
2x + 90 = 520
2x = 520 - 90 = 430
x = 430/2 = 215
Thus,
miles driven by sam = x = 215 miles
Miles driven by Tony = x + 90 = 215 + 90 = 305 miles.
Answer:
The 99% confidence interval for the true mean amount of time Americans spend social networking each day is (3.02 hours, 3.36 hours).
Step-by-step explanation:
The (1 - <em>α</em>)% confidence interval for population mean when the population standard deviation is not known is:
The information provided is:
Confidence level = 99%.
Compute the critical value of <em>t</em> for 99% confidence interval and (n - 1) degrees of freedom as follows:
*Use a <em>t</em>-table.
Compute the 99% confidence interval for the true mean amount of time Americans spend social networking each day as follows:
Thus, the 99% confidence interval for the true mean amount of time Americans spend social networking each day is (3.02 hours, 3.36 hours).
Answer:
7x-5 in
Step-by-step explanation:
(8x + 2)+(5x+12)+(8x + 2)+?=28x+11
8x+2+5x+12+8x+2+?=28x+11
8x+5x+8x+2+12+2+?=28x+11
13x+8x+16+?=28x+11
21x+16+?=28x+11
21x-21x+16+?=28x-21x+11
16+?=7x+11
16-16+?=7x+11-16
?=7x-5 in
