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2 years ago

Add -3/8 + 5/4 Simplify your answer. Type a fraction or an interger.

Mathematics

2 answers:

sdas [7]2 years ago

7 0

Beautiful your answer is 7/8

Anton [14]2 years ago

5 0

5/4 - 3/8 = 5*2/4*2 - 3/8 = 10/8 - 3/8= 7/8

The final answer is 7/8 in fraction form. Notice the second step. It brings the 5/4 into eighths by multiplying 5*2 and 4*2. This is done so that the 3/8 and 5/4 have identical denominators.

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Ron walks 0.5 mile on a track in 10 minutes. Stevie walks 0.25 mile on the track in 6 minutes find the unit rate for each walker

Firlakuza [10]

Answer:

Ron's speed = 3 miles/hour

Stevie's speed = 2.5 miles/hour

On comparing we see Ron is walking faster than Stevie.

Step-by-step explanation:

Given:

Ron takes 10 minutes to walk on a track to cover a distance of 0.5 miles

Stevie takes 6 minutes to walk on a track to cover a distance of 0.25 miles

To find their unit rates in mile per hour and choose the faster one.

Solution:

Unit rate in miles per hour signifies their speeds. Thus, we will find out their speeds.

Ron:

Distance= 0.5 miles

Time = 10 minutes = $10\ min\times \frac{1\ hr}{60\ min}=\frac{1}{6}$ hours

Speed = $\frac{Distance}{Time}=\frac{0.5}{\frac{1}{6}}=0.5\times6=3\ miles/hour$

Stevie

Distance = 0.25 miles

Time = 6 minutes = $6\ min\times \frac{1\ hr}{60\ min}=\frac{1}{10}$ hours

Speed = $\frac{Distance}{Time}=\frac{0.25}{\frac{1}{10}}=0.25\times10=2.5\ miles/hour$

Thus, we have

Ron's speed = 3 miles/hour

Stevie's speed = 2.5 miles/hour

On comparing we see Ron is walking faster than Stevie.

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2 years ago

For the problem 9+2(3) do you get the final answer if you had first as you do if you multiply first

mel-nik [20]

Answer:

Step-by-step explanation:

you have to multiply first because of the order of operations, so 2 × 3 = 6, and 6 + 9 = 15

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To rent a certain meeting room, a college charges a reservation fee of $31 and an additional fee of $7.40 per hour. The chemistr

Mamont248 [21]

T= # of rental hours
Reservation Fee= $31
Per Hour Fee= $7.40

Multiply number of hours rented by the cost per hour, add that total to the reservation fee. The total needs to be less than $97.60.

Res Fee + ($ per hr * # hrs) < $97.60

$31 + $7.40t < $97.60
subtract 31 from both sides

7.40t < 66.60
divide both sides by 7.40

t < 9

ANSWER: To spend less than $97.60, they need to rent the room less than 9 hours.

Hope this helps! :)

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What is the math function of 3x,=y

vichka [17]

Direct variation. Have a nice day!

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STALIN [3.7K]

Answer:

6. xint=-7

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7. xint=-7

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Step-by-step explanation:

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2 years ago

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