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2 years ago

8

The coach mixes 15 scoops of powder with 2 gallons of water to make a sports drink for his team How many scoops of powder does t

he coach need to mix with 10 gallons of water

1 answer:

klemol [59]2 years ago

8 0

He needs 75 scoops of powder.
Because 10/2= 5, so you would multiply 15 by 5 to get 75

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Agroup of friends were working on a student film with a budget of $500, which they

mina [271]

Answer:

89%

Step-by-step explanation:

500-55=445

445/500=0.89

0.89x100=89

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1 year ago

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Which of the following have the property that a(x)=a−1(x)? I. y=x II. y=1/x III.y=x^2 IV. y=x^3 A. I and II, only B. IV, only C.

valentina_108 [34]

Answer:

<em>Correct answer:</em>

<em>A. I and II</em>

<em></em>

Step-by-step explanation:

First of all, let us have a look at the steps of finding inverse of a function.

1. Replace y with x and x with y.

2. Solve for y.

3. Replace y with $f^{-1}(x)$

Given that:

$I.\ y=x \\II.\ y=\dfrac{1}x \\III.\ y=x^2 \\IV.\ y=x^3$

Now, let us find inverse of each option one by one.

I. y = x, a(x) = x

Replacing y with and x with y:

x = y

x = $a^{-1}(x)$ = $a(x)$ Hence, I is true.

II. $y =\dfrac{1}{x}$

Replacing y with and x with y:

$x =\dfrac{1}{y}$

$x=\dfrac{1}{a^{-1}(x)}$

$\Rightarrow a^{-1}(x) = \dfrac{1}{x}$

$a^{-1}(x)$ = $a(x)$ Hence, II is true.

III. $y =x^{2}$

Replacing y with and x with y:

$x =y^{2}\\\Rightarrow y = \sqrt x\\\Rightarrow a^{-1}(x) = \sqrt{x} \ne a(x)$

Hence, III is not true.

IV. $y =x^{3}$

Replacing y with and x with y:

$x =y^{3}\\\Rightarrow y = \sqrt[3] x\\\Rightarrow a^{-1}(x) = \sqrt[3]{x} \ne a(x)$

Hence, IV is not true.

<em>Correct answer:</em>

<em>A. I and II</em>

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3 years ago

The wingspan of different species of birds is as follows:

grigory [225]

A. albatross - blue jay = 3 1/2 - 39/100
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================== 311/100
================== 3.11

b. Golden eagle - seagull = 2 1/4 - 11/5
======================= (2*4)+1/4 - 11/5
======================= 9/4 - 11/5
======================= 1/20
======================= 0.05

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2 years ago

Given the volume, state the missing measure for each figure below.

Mariana [72]

Answer:

6

Step-by-step explanation:

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2 years ago

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Write an expression: the product of three and the quantity x minus 2

Anna35 [415]

3x-2 is the expression.

Hope this helps!

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2 years ago