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3 years ago

Help me im losing brain cells day by day i dont know what to do

Mathematics

1 answer:

Gekata [30.6K]3 years ago

7 0

Answer:

answer is down below

Step-by-step explanation:

4/10 0.4

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Susan drove to visit a friend. She drove 345

padilas [110]

Answer:

$Average\ Speed = 60 mi/hr$

Step-by-step explanation:

Given

$Distance = 345\ miles$

$Time = 5\ hours\ 45\ minutes$

Required

Determine the average speed

This is calculated as thus:

$Average\ Speed = \frac{Distance}{Time}$

Convert time to hour:

$Time = 5\ hours\ 45\ minutes$

$Time = 5\ hours + \frac{45}{60}\ hour$

$Time = 5\ hours + \frac{3}{4}\ hour$

$Time = \frac{20 + 3}{4}\ hours$

$Time = \frac{23}{4}\ hours$

$Time = 5.75\ hours$

$Average\ Speed = \frac{Distance}{Time}$

$Average\ Speed = \frac{345}{5.75}$

$Average\ Speed = 60 mi/hr$

7 0

3 years ago

Charity sold 110 cookies for $0.75 each. Her cost to make each cookie was $0.20 plus $20 for boxes. How much profit will charity

Ad libitum [116K]

The anwser is $40.50

8 0

3 years ago

I don't know how to do it

____ [38]

I would say C because it makes more sense than all the others.

8 0

4 years ago

Read 2 more answers

Write an expression that can be used in over a temperature from degrees Celsius see to degrees Fahrenheit and then use the expre

densk [106]

Answer:

25°C = 77 degree Fahrenheit.

Step-by-step explanation:

In this question we have to write the expression showing the relation between degree Celsius and degree Fahrenheit first.

$C=\frac{5}{9}(F-32)$ where C = degree centigrade and F = degree Fahrenheit

Although the question is not clear in the next part but assuming that we have to use this expression to convert 25°C to degree Fahrenheit,

We will plug in the value of C in the expression,

$25=\frac{5}{9}(F-32)$

$F=(\frac{9}{5}\times 25)+32$

F = 45 + 32

F = 77

Therefore, 25°C = 77 degree Fahrenheit will be the answer.

4 0

3 years ago

Tom converted the height this way 3 feet=1 yard

Soloha48 [4]

The units have to cancel out
1yard/3feet should be it
it is wrong since yards are bigger than feet so
379ft/1 times 1yd/3ft=379ydft/3ft=126.33333333yard

3 0

3 years ago