Select the statement that is false.

Vilka [71]

Its the third one- 1/2

7 0

2 years ago

Trey drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 12 hours. When Trey drove

USPshnik [31]

Question was Incomplete;Complete question is given below;

Trey drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 12 hours. When Trey drove home, there was no traffic and the trip only took 8 hours. If his average rate was 20miles per hour faster on the trip home, how far away does Trey live from the mountains?

Do not do any rounding.

Answer:

Trey lives 480 miles from the mountain.

Step-by-step explanation:

Given:

Time taken to drove the mountain =12 hours

Time taken to return back from mountain = 8 hours.

Let the speed at which he drove to mountain be denoted by 's'.

Speed on the trip to home = $s+20$

We need to find the distance Trey live from the mountains.

Solution:

Let the distance be denoted by 'd'.

Now we know that;

Distance is equal to speed times Time.

framing in equation form we get;

distance from home to mountain $d=12s$

Also distance from mountain to home $d = (s+20)8=8s+160$

Now distance is same for both the trips;

so we can say that;

$12s=8s+160$

Combining the like terms we get;

$12s-8s=160\\\\4s=160$

Dividing both side by 4 we get;

$\frac{4s}{4}=\frac{160}{4}\\\\s=40\ mph$

Speed while trip to mountain = 40 mph

Speed while trip to home = $s+20=420+20=60\ mph$

So Distance $d=12s=12\times40 = 480\ miles$

Hence Trey lives 480 miles from the mountain.

6 0

2 years ago

Please help for brainliest answer

erma4kov [3.2K]

Answer:

874.6

Step-by-step explanation

Profit = Sales - Costs

Profits by day:

Mon:

225 - (225*0.12) -9 = 189.0

Tue

260 - (260*0.12) -9 = 219.9

Wed

230 - (230*0.12)-9 = 193.4

Thu

180 - (180*0.12) - 9 = 149.4

Fri

150 - (150*0.12) -9 = 123.0

Total:

189+219.9+193.4+149.4+123 = 874.6

6 0

3 years ago

20 PTS PLEASE HELP ASAP!

gtnhenbr [62]

Answer:

Slope is 1/2

Step-by-step explanation:

Use the slope formula. Say S = the 1st point and T = the 2nd point.

m = 20 - 10 10 1

------------ = ----------- = ---

20 - 0 20 2

The equation for slope is also y = mx + b

m is the slope, b is the y-intercept.

Therefore, if you look at the 1st choice, you can see that 1/2 is in the place of m, meaning that 1/2 is the slope of line ST

I dunno how to do the other way

7 0

3 years ago

An advertising campaign is canceled before launch with probability 0.10, in which case the marketing company is fired with proba

Feliz [49]

Answer:

0.2231 (22.31%)

Step-by-step explanation:

defining the event F = the marketing company is fired, then the probability of being fired is:

P(F)= probability that the advertising campaign is cancelled before lunch * probability that marking department is fired given that the advertising campaign was cancelled before lunch + probability that the advertising campaign is launched but cancelled early * probability that marking department is fired given that the advertising campaign is launched but cancelled early .... (for all the 4 posible scenarios where the marketing department is fired)

thus

P(F) =0.10 * 0.74 + 0.18 * 0.43 + 0.43 * 0.16 + 0.29*0.01 = 0.2231 (22.31%)

then the probability that the marketing department is fired is 0.2231 (22.31%)

7 0

2 years ago