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ValentinkaMS [17]

3 years ago

11

The distance , d, a train travels in miles depends on the hours, h. The equation shows this relationship, d=120h. How many miles

does the train travel in one hour ?

1 answer:

IrinaVladis [17]3 years ago

7 0

Answer:

120h

Step-by-step explanation:

because one miles is equal to one hour so 120 hours is equivalent to 120 miles

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Which fractions are equivalent to 4/9?

LenaWriter [7]

Answer:

$\frac{8}{18}$

Step-by-step explanation:

$\frac{4}{9} = \frac{4 \times 2}{9 \times 2} = \frac{8}{18} \\$

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3 years ago

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What is 2.26 (6 repeating) as a fraction?

Gekata [30.6K]

Answer:

34/15

Step-by-step explanation:

I recognized the form of this decimal as a number divided by 3. However, when I multiplied it by 3, I got 6.8. This means that the fraction was not fully simplified. Multiplying by 5, I got 34. Since I had to multiply by 3 and then by 5 to get there, I multiplied by a total of 15. Hope this helps!

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4 years ago

Solve by factorization<br> 2x^2 + 3x -20 = 0

saul85 [17]

Answer:

x=2.5 or x=-4

Step-by-step explanation:

factorisation= factors:1, 2, 4, 5, 10, 20 (only the positive factors)

We will use the factors 4 and 5.

=(2x-5)(x+4)=0

2x-5=0 || x+4=0

2x=+5 || x=-4

x=2.5 or x=-4

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3 years ago

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What is the area of this quadrilateral

sammy [17]

Answer:

C

Step-by-step explanation:

First, let's work out the two triangles:

Area of triangle: bxh/2

2 x 8/2 = 8

Because there is two triangles multiply 8 by 2 = 16

To work out the area of the central rectangle:

Area of rectangle: l x w

3 x 8 = 24

Add 16+24 = 40 square feet

4 0

3 years ago

One side of a triangle is 2 times the second side. The third side is 5 ft longer than the second side. The perimeter of a triang

TiliK225 [7]

Answer:

The length of each side of triangle are 19 ft, 24 ft and 38 ft.

Step-by-step explanation:

Let the length of second side be x.

Now given:

Length of first side is 2 times length of second side.

Length of first side = 2x

Also, Length of third side is 5 ft longer than the second side.

Length of third side = 5+x

Perimeter of triangle = 81 ft.

We need to find the length of each side.

Now perimeter of triangle is sum of all three sides of triangle.

Therefore;

Perimeter of triangle = Length of first side + length of second side + Length of third side.

$2x+x+5+x=81 ft\\4x+5=81ft\\4x= 81 -5 ft\\4x = 76ft\\x= \frac{76}{4} = 19 ft$

Length of Second Side = 19 ft.

Length of First side = $2x= 2\times19 = 38 ft$

Length of Third side = $5+x= 5+19=24ft$

Hence the Length of triangles are 19 ft,38 ft,24 ft.

3 0

3 years ago