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saw5 [17]
2 years ago
14

a water turck is filling a swiming pool. the euqation that represents this relationship is y = 19.75x where y is the number of g

allons of water in the pool and x is the number of minutes the truck has been filling the pool choose true or false for each statement
Mathematics
1 answer:
Levart [38]2 years ago
8 0

Answer:

<h2>True </h2>

Step-by-step explanation:

Given the expression

y = 19.75x

let us see the solution from this angle

we know that

speed=distance/time

distance=speed*time

i.e quantity=rate*time

y = 19.75x

y=the quantity =number of gallons

19.5= the rate of flow

therefore

x= the time in  minutes

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Step-by-step explanation:

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Please find the attached files for the solution

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3 years ago
PLEASE HELP!!!!!!!!!!!!!
Alenkasestr [34]

Answer:

Tasha made her mistake in step 4.

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Illusion [34]

Answer:

<h2><u>question 1</u></h2>

n^{2} - 20n -96 = 0

use product and sum method

product = -96

sum = -20

numbers needed = ( -24 , 4)

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n + 4 = 0

hence <u>n = 24 and n = -4 </u>

<u></u>

<h2><u>Question 2 </u></h2>

<u />x^{2} + 12 x = 48<u />

in the form ax^{2}  +bx +c = 0

= x^{2} +12x - 48

make use of the formula :

\frac{-b+-\sqrt{b^{2} -4ac} }{2a}

replace values to make 2 equations :

1.\frac{-12+\sqrt{12^{2} -4*1*-48} }{2*1} = 3.17

2.\frac{-12-\sqrt{12^{2} -4*1*-48} }{2*1} = -15.2

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<h2><u>Question 3 </u></h2>

<u />x^{2} -14x+40=0<u />

use product and sum method

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numbers needed = (-10 , -4)

x - 10 = 0

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hence<u> x = 10 and x = 4</u>

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<h2><u>Question 4 </u></h2>

<u />5b^{2} -20b-18 = 7<u />

in the form ax^{2}  +bx +c = 0

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= 5b^{2} -20b-25

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use product and sum method

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Answer: The answer is A

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