Running track a kilometre what is four times 1/3

Mathematics

2 answers:

sukhopar [10]3 years ago

6 0

Its 1 1/3 simplified but if you don't simplify this is what it looks like 4/3

antiseptic1488 [7]3 years ago

3 0

$4* \frac{1}{3} = \frac{4}{3}$

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Please help. Question listed below

solmaris [256]

Answer:

$f^{-1}$ (x) = ( $\frac{9x-1}{8}$ )²

Step-by-step explanation:

f(x) = $\frac{8\sqrt{x} +1}{9}$

y = $\frac{8\sqrt{x} +1}{9}$

Solve equation for x

8√x + 1 = 9y

8√x = 9y - 1

√x = $\frac{9y-1}{8}$

(√x)² = ( $\frac{9y-1}{8}$ )²

x = ( $\frac{9y-1}{8}$ )²

Switch "x" and "y"

y = ( $\frac{9x-1}{8}$ )²

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5 0

3 years ago

John and Alan have a collection of x baseball cards. John has x4 cards. What fraction of the cards does Alan have?

melomori [17]

Number of cards of John: J
Number of cards of Alan: A

<span>John and Alan have a collection of x baseball cards:
J+A=x (1)

</span>John has x/4 cards:
J=x/4

<span>What fraction of the cards does Alan have?
</span>
Replacing J by x/4 in the equation (1)
(1) J+A=x
x/4+A=x

Solving for A:
x/4+A-x/4=x-x/4
A=4x/4-x/4
A=(4x-x)/4
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Answer: Alan has 3/4 of the cards

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3 years ago

A 26 ft long ramp is used to reach 10 ft up a wall. The ramp covers a horizontal distance of 24 ft. To make the ramp less steep,

Anika [276]

Answer:

The length of new ramp is 49.03 ft.

Step-by-step explanation:

It is given that 26 ft long ramp is used to reach 10 ft up a wall. The ramp covers a horizontal distance of 24 ft.

If the horizontal distance is doubled, then the horizontal distance is 48 ft. The height remains same. Therefore the height of ram is 10 ft.

Use pythagoras in new right angle triangle.

$hypotenuse^2=base^2+perpendicular^2$