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3 years ago

How do you write a real world scenario using equations

Mathematics

1 answer:

olga2289 [7]3 years ago

6 0

Answer:

You will need an unknown value at first. Let that value be X.

Step-by-step explanation:

So let's say that Sandra earns 5 dollars per hour and already has 30 dollars. Now lets use this form

y-mx+b(Easy way to write one)

y=5x+30

X Is Number of hours while y is the money gained

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Reil [10]

<u>Answer:</u>

x = 5.00 cm

<u>Step-by-step explanation:</u>

• area of the rectangle = $x$ x $(x + 1)$

= $x^2 + x$

• area of the circle = π r²

= $\frac{22}{7}$ x $(x + 2)^2$

= $\frac{22}{7}$ x $(x^2 + 4x + 4)$

∴ $x^2 + x$ + $\frac{22}{7}$ x $(x^2 + 4x + 4) = 184$

⇒ $x^2 + x$ + $\frac{22}{7} x^2 \space\ + \space\ \frac{88}{7} x \space\ + \space\ \frac{88}{7} = 184$

⇒ $\frac{29}{7}x^2 \space\ + \space\ \frac{95}{7}x \space\ - \frac{1200}{7} = 0$

• Using quadratic formula, where

a = $\frac{29}{7}$

b = $\frac{95}{7}$

c = $\frac{-1200}{7}$ ,

$x=\frac{-b \pm \sqrt{b^2-4c}}{2}$

$x = \frac{-\frac{95}{7}\pm \sqrt{(\frac{95}{7})^2 - 4(\frac{29}{7})(\frac{-1200}{7} ) } }{2(\frac{29}{7})}$

$x = 5.00 \space\ \space\ \space\ or \space\ \space\ \space\ x = -8.28$

As length (x) cannot be a negative number,

x = 5.00 cm

7 0

2 years ago

PLEASE HELP!!! Sarah had a balance of $155 in her bank account at the start of the week. She withdrew $65.50 on Monday, $23.25 o

Firdavs [7]

Answer:

155.00-65.50-23.25-26.45+165.30

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Which statement best describes how the volume of a square-based pyramid is related to the volume of a cube?

svetoff [14.1K]

Answer:

The options are not clearly written but, the volume of square based pyramid is 1/6 the volume of a cube because each of the six faces of the cube will contain one square based pyramid.

Step-by-step explanation:

Let the length of each side of your cube be x

the height of each of the six enclosed pyramids would be x/2. So the volume of each pyramid would be given by:

V = (1/3) × base area × height

V = (1/3) × x^2 × (x/2) = (x^3)/6

8 0

4 years ago

Please help I’ll give brainliest

il63 [147K]

Answer:

2 is the base

Step-by-step explanation:

2^3

2 is the base and 3 is the exponent

6 0

3 years ago

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A rectangular box has volume 10 cubic meters. the base of the box is a square. the top and the base of the box are made from mat

allsm [11]

200 times 20 qnd ten then 30 if you want then go from there

3 0

4 years ago

How do you write a real world scenario using equations​

How do you write a real world scenario using equations