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3 years ago

Neil skate 7/8 mile. Xavier skated 3/4 mile. How much farther did Neil skate then Zavier?

Mathematics

2 answers:

kolezko [41]3 years ago

8 0

7/8 - 3/4 = 7/8 - 6/8 = 1/8

Mnenie [13.5K]3 years ago

3 0

1/8 because 7/8 - 3/4 is equal to 7/8 -6/8 which is 1/8

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Andrea bought tacos from a food truck and left a 25%tip of 2.00

disa [49]

Answer:

8.00$

Step-by-step explanation:

if you think about it. In a dollar theres 4 quarters. 100 divided equally is 25 so that is 1/4 of the amount. 2x4 is 8.

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3 years ago

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Fiesta28 [93]

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4 years ago

A square building with an area of 225 m2 has a garden surrounding it that has an equal width on all sides. The area of the garde

xenn [34]

Answer:

The width of the garden is 1.16 m

Step-by-step explanation:

step 1

<em>Find the area of the garden</em>

To find out the area of the garden multiply by 1/3 the area of the building

$225(\frac{1}{3})=75\ m^2$

step 2

Find the length side of the square building

The area of a square is

$A=b^2$

where

b is the length side of the square

we have

$A=225\ m^2$

$b^2=225\\b=15\ m$

step 3

Find the width of the garden

Let

x ----> the width of the garden

we know that

The area of the building plus the area of the garden is equal to

$(15+2x)^2=225+75$

solve for x

$225+60x+4x^2=225+75\\4x^2+60x-75=0$

Solve the quadratic equation by graphing

using a graphing tool

The solution is x=1.16 m

see the attached figure

therefore

The width of the garden is 1.16 m

Find the exact value

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$4x^2+60x-75=0$

$a=4\\b=60\\c=-75$

substitute in the formula

$x=\frac{-60\pm\sqrt{60^{2}-4(4)(-75)}} {2(4)}$

$x=\frac{-60\pm\sqrt{4,800}} {8}$

$x=\frac{-60\pm40\sqrt{3}} {8}$

$x=\frac{-60+40\sqrt{3}} {8}\ m$ ----> exact value

8 0

3 years ago

7.6g of sugar is needed for every cake made. How much sugar is needed for 5 cakes

vladimir2022 [97]

Answer:

38 grams

Step-by-step explanation:

7.6*5=38

8 0

3 years ago

Find the slope of the line passing through the points (-4, -3) and (8, -9).

lana [24]

Answer:

-1/2

Step-by-step explanation:

-9--3=-6

8--4= 12

-6/12

-1/2

5 0

3 years ago

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