3 years ago

5x : 9 = 8:3 Calculate the value of x.

1 answer:

7 0

Answer:
4.8

Explanation:
Please see the picture attached!

I hope this helps! Please comment if you have any questions.

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The local farmer's market sells a 4-pound basket of apples which contains 10

Galina-37 [17]

Answer:

I believe its $1.40

Step-by-step explanation:

8 0

2 years ago

The cost, in dollars, of producing x belts is given by Upper C (x )equals 970 plus 12 x minus 0.076 x squared. The revenue, i

umka21 [38]

Answer:

$68.44 for each additional belt

Step-by-step explanation:

The cost and revenue functions are:

$C(x) = 970+12x - 0.076x^2\\R(x) =43x^{\frac{3}{4}}$

The profit function, P(x), is given by subtracting the cost function from the revenue function.

$P(x) = R(x) - C(x)\\P(x)=43x^{\frac{3}{4}}+0.076x^2-12x-970\\$

The derivate of the profit function gives us the rate at which profit changes:

$\frac{dP(x)}{dx} =P'(x)=32.25x^{\frac{-1}{4}}+0.152x-12\\$

For x = 484, the rate of change is:

$P'(484)=32.25*484^{\frac{-1}{4}}+0.152*484-12\\P'(484) = \$68.44/belt$

Profit is increasing by $68.44 for each additional belt

3 0

2 years ago

Name two points on a line that has a slope of 5 over 8.

GREYUIT [131]

Y=mx+b ....formula of slope

m refers to slope and b is intercept,,,so this become equation of y.
now answer,
y=5/8x+b

6 0

3 years ago

Help! exponent grade

tatuchka [14]

Answer:

16a^24/ b^16c^8

3 0

2 years ago

I'm using double number lines. Martin bought 3 DVDs for $15.00 on Black Friday. At this price, how much would 8 DVDs cost?

bagirrra123 [75]

First of all, I find it easiest to write n equation.

3 / 15 x 8 =

Now that we have an equation, we can figure out a solution.

3 / 15 = 5
5 x 8 = 40

So 8 DVD's would cost $40.00.

6 0

3 years ago