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3 years ago

7-10x/5 i’m not sure what the answer is

Mathematics

1 answer:

Trava [24]3 years ago

5 0

Answer:

7-2x

Step-by-step explanation:

7-10x/5

If it was 10x/5 then it becomes 2x

7-2x

but if was dividing 7-10x by 5 then it would just be 7-10x over 5

Hope this helps :)

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Ava hikes 3.5 miles per hour. If she hikes for 7 hours, how far will she have gone? *

Lilit [14]

Answer:

i have no clue

Step-by-step explanation:

4 0

3 years ago

train travelling at a uniform speed covers a distance of 255 km in Find the speed of the train and 3 4/5 1 1/2 the distance cove

serg [7]

The speed of the train is 150 km/hour.

The distance covered by the train in 3 4/5 hours is 570 km.

The speed of a body is calculated using the formula, speed = distance/time.

The distance covered is calculated using the formula, distance = speed*time.

The time taken by a body is calculated using the formula, time = distance/speed.

In the question, we are asked for the speed of a train, when it covers a distance of 225 km in 1 1/2 hours.

Distance = 225 km.

Time = 1 1/2 hours = 1.5 hours.

Speed = Distance/Time = 225/1.5 km/hour = 150 km/hour.

Now, we are asked to calculate the distance covered by the train in 3 4/5 hours.

Speed = 150 km/hour.

Time = 3 4/5 hours = 3.8 hours.

Distance = Speed*Time = 150*3.8 km = 570 km.

Thus, the speed of the train is 150 km/hour.

The distance covered by the train in 3 4/5 hours is 570 km.

The provided question is incorrect. The correct question is:

"A train at a uniform speed covers a distance of 225 km in 1 1/2 hours. Find the speed of the train and the distance covered in 3 4/5 hours.

Learn more about speed, time, and distance at

brainly.com/question/17146782

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6 0

2 years ago

I need someone to answer this immediately please. ... The area of a piece of land is 50cm square. Fi d the value of x, if the le

iren [92.7K]

Answer:

x=8

Step-by-step explanation:

Area is equal to

A = l * w

50 = ( x+2) ( x-3)

FOIL

50 = x^2 -3x+2x -6

Combine like terms

50 = x^2 -x -6

Subtract 50 from each side

0 = x^2 -x -56

Factor

What two numbers multiply to -56 and add to -1

-8*7 = -56

-8+7 = -1

0 = ( x-8) ( x+7)

Using the zero product property

x-8 =0 x+7 =0

x = 8 x=-7

Since the length cannot be negative x cannot be negative

x=8

8 0

4 years ago

Read 2 more answers

What model describes the relationship between the amount of money in an account and time, given that the money doubles every mon

quester [9]

If we have a common ratio every set amount of time (and not a common difference or addition), this is an exponential relationship. An exponential equation would have a form like Money = (1000)(2)^(# of months), where every additional month would cause the money amount to double.

3 0

4 years ago

Read 2 more answers

9. The radius of a circle is 6.

Arlecino [84]

Answer:

12,5.196

Step-by-step explanation:

given that the radius of a circle is 6.

We have any tangent drawn from outside point there will be two tangents of equal length and also the line joining point of intersection of tangent with centre of circle will bisect the angle between the tangents.

When angle between the two tangents is 60, we have the right triangle formed by radius, one tangent, and line joining point of intersection of tangent with centre of circle with angles 30,60 and 90

Hence the hypotenuse = length of line segment of tangent = 2 (radius) = 12

Part 2:

When angle between tangents is 120, we have 60,30,90 right triangle and hence length of tangent = radius * sin 60

= $6*\frac{\sqrt{3} }{2} \\=5.196$

7 0

3 years ago