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dedylja [7]
1 year ago
10

Jessica is putting money into a checking account. Let y represent the total amount of money in the account (in dollars). Let x r

epresent the number of weeks Jessica has been adding money. Suppose that x and y are related by the equation =+55030xy.
Mathematics
1 answer:
uranmaximum [27]1 year ago
6 0

After differentiating, the amount when x=0 yields starting amount,

300 dollars.

What is diffrentiation?

  • A technique for determining a function's derivative is differentiation.
  • A technique for determining a function's derivative is differentiation. Mathematicians use a procedure called differentiation to determine a function's instantaneous rate of variation based on a particular variables. The most typical illustration is velocity, which is the rate at which a distance changes in relation to time.
  • In mathematics, differentiation is used to determine change rates. 

Differentiating the given equation with respect to x,

Given equation,

y= 55x+ 300

\frac{dy}{dx} =\frac{d(55x+300)}{dx} = 55+0 =$55 dollars.

The amount when x=0 yields starting amount,

y=55(0)+300=300

Learn more about differentiation here:

brainly.com/question/25081524

#SPJ9

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A school purchases boxes of candy bars.
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Answer:

$0.20 per candy bar

Step-by-step explanation:

There are 50 candy bars per box. It's costing the school $30/50=$0.60 per candy bar to buy. The school sells each candy bar for $0.80, making a profit of $0.20 per candy bar.

3 0
3 years ago
using approximations to 1 significant figure, estimate the value of 9.94² × 29.7 you must show your working​
zvonat [6]

Answer:

2934.5

Step-by-step explanation:

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3 years ago
Read 2 more answers
Which expressions are polynomials?
igor_vitrenko [27]

Option A: z + 1

Option B: 6 + w

Option D: 2 x^{4}-y

Solution:

Let us first define the polynomial.

A polynomial can have constants, variables, exponents and fractional coefficients.

A polynomial cannot have negative exponents, fractional exponents and never divided by a variable.

<u>To find which expressions are polynomial:</u>

Option A: z + 1

By the definition, z + 1 is a polynomial.

It is polynomial.

Option B: 6 + w

By the definition, 6 + w is a polynomial.

It is polynomial.

Option C: y^{2}-\sqrt[3]{y}+4

y^{2}-\sqrt[3]{y}+4=y^{2}-{y}^{1/3}+4

Here, y have fractional exponent.

So, it is not a polynomial.

Option D: 2 x^{4}-y

By the definition, 2 x^{4}-y is a polynomial.

It is polynomial.

Hence z + 1, 6 +w and 2 x^{4}-y are polynomials.

6 0
3 years ago
using the following image. findUsing the attached image, apply what you have lease about linear pairs and solve for x.
natka813 [3]

Answer:

Step-by-step explanation:

Linear pairs

(4x + 1)  + 75  = 180

Add the like terms

4x +  76 = 180

Subtract 76 from both sides,

4x = 180- 76

4x = 104

Divide both sides by 4

x = 104/4

x = 26

5 0
3 years ago
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