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3 years ago

Can Someone Help Me With This:

Mathematics

2 answers:

andriy [413]3 years ago

3 0

Answer:

a) 31/33
b) $124
c) $930

Step-by-step explanation:

a) You want the ratio ...

(Salena's earnings)/(Drew's earnings)

It is convenient to fill in the numbers from the first line of the table:

(Salena's earnings)/(Drew's earnings) = 31/33

b) Salena's earnings in 4 days will be double her earnings in 2 days.

4 days' earnings = 2×$62 = $124

c) Salena's earnings in 30 days will be 10 times her earnings in 3 days.

30 days' earnings = 10×$93 = $930

_____

<em>Alternate solution</em>

You can go to the trouble to write an equation for Salena's earnings (s) in terms of the number of days (d). That would be ...

s = 31d

Then you can fill in d=4 or d=30 to find her earnings for 4 or 30 days. For this problem, enough information is given in the table that shortcuts can be used, simplifying the problem immensely.

Archy [21]3 years ago

3 0

Answer:

a) 31/33

b) $124

c) $930

there is know way i can get bran-list compared to the employe of the month

Step-by-step explanation:

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3 years ago

The mosquito population is a function of rainfall, and can be approximated by the formula N(x)=−x3+45x2+1000 where x is the numb

KiRa [710]

Answer:

Therefore the population will be maximum when x=30 inches.

Step-by-step explanation:

Given that, the mosquito population is a function of rainfall and can be approximated by the formula

$N(x)= -x^3+45x^2+1000$

where x is the number of inches of rainfall.

$N(x)= -x^3+45x^2+1000$

Differentiating with respect to x

$N'(x)= -3x^2+90x$

Again differentiating with respect to x

$N''(x)=-6x+90$

Now we set N'(x)=0

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$\Rightarrow -3x(x-30)=0$

$\Rightarrow x=0,30$

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$N''(30)=-6.30+90=-90$

Since at x=30, N''(x)<0, So at x=30, N(x) has maximum value.

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2 years ago

Side length of cube with volume of 729 ft

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3 years ago

John scored 48, 59, and 62 points. His average score was 60%. What was the last score to make it average?

solniwko [45]

Answer:

Hello! Your answer is 71.

Step-by-step explanation:

(48+59+62+71) =240

240 ÷ 4 = 60.

The 4 is the four different points he got.

The 60 is the average percent.

HOPE THIS HELPS!

7 0

3 years ago

Read 2 more answers

A square and a rectangle have equal areas. If the dimensions of

Katena32 [7]

Answer:

L = 3√5

Step-by-step explanation:

A square and a rectangle have equal areas.

Area of a square = Area of a rectangle

L² = H * W

If the dimensions of the rectangle are 15 units by 3 units,

L² = 15 * 3

L² = 45

Determine the length of the side of the square.

L = √45

L = 3√5

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3 years ago

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Can Someone Help Me With This:​

Can Someone Help Me With This: