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3 years ago

WILL GIVE BRAINLYEST

Mathematics

2 answers:

melisa1 [442]3 years ago

8 0

Answer:

B = $\frac{4}{9}$ A

Step-by-step explanation:

Given that B varies directly as A then the equation relating them is

B = kA ← k is the constant of variation

To find k use the condition A = 90 and B = 40, then

k = $\frac{B}{A}$ = $\frac{40}{90}$ = $\frac{4}{9}$

B = $\frac{4}{9}$ A ← equation of variation

Sunny_sXe [5.5K]3 years ago

3 0

How did you add the picture to the the page

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4 years ago

How much is 5.802 less than 74.14<br>

Wewaii [24]

Answer:

68.338

Step-by-step explanation:

to know how much is less than we have to substract

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3 years ago

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antiseptic1488 [7]

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3 years ago

Suppose that a phone that originally sold for $800 loses 3/5 of its value each year after it is released.

liubo4ka [24]

Answer:

It will be worth $128.

Step-by-step explanation:

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3 0

3 years ago

The average number of traffic tickets issued in a city on any given day

Anton [14]

Answer:

The most tickets were written on Saturday .On Saturday 325 tickets were issued

Step-by-step explanation:

The average number of traffic tickets issued in a city on any given day Sunday-Saturday can be approximated by

$T(x) = -6x^2 + 84x + 37$

Where x represents the number of days after Sunday

T(x) represents the number of traffic tickets issued.

Sunday = x=0

Monday = x=1

Tuesday = x=2

Wednesday = x=3

Thursday = x =4

Friday = x=5

Saturday = x=6

Substitute x= 0

$T(x) = -6x^2 + 84x + 37\\T(x) = -6(0)^2 + 84(0) + 37\\T(x)=37$

On Sunday 37 tickets were issued

Substitute x= 1

$T(x) = -6x^2 + 84x + 37\\T(x) = -6(1)^2 + 84(1) + 37\\T(x)=115$

On Monday 115 tickets were issued

Substitute x= 2

$T(x) = -6x^2 + 84x + 37\\T(x) = -6(2)^2 + 84(2) + 37\\T(x)=181$

On Tuesday 181 tickets were issued

Substitute x= 3

$T(x) = -6x^2 + 84x + 37\\T(x) = -6(3)^2 + 84(3) + 37\\T(x)=235$

On Wednesday 235 tickets were issued

Substitute x= 4

$T(x) = -6x^2 + 84x + 37\\T(x) = -6(4)^2 + 84(4) + 37\\T(x)=277$

On Thursday 277 tickets were issued

Substitute x= 5

$T(x) = -6x^2 + 84x + 37\\T(x) = -6(5)^2 + 84(5) + 37\\T(x)=307$

On Friday 307 tickets were issued

Substitute x= 6

$T(x) = -6x^2 + 84x + 37\\T(x) = -6(6)^2 + 84(6) + 37\\T(x)=325$

On Saturday 325 tickets were issued

Hence the most tickets were written on Saturday .On Saturday 325 tickets were issued

6 0

3 years ago