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2 years ago

Can you help me plz

Mathematics

1 answer:

Alex73 [517]2 years ago

6 0

9514 1404 393

Answer:

y = x + 4

Step-by-step explanation:

To find the constant in the equation, look in the table for the value of y when x=0. That value is 4, so ...

y = x + 4

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Sylvie finds the solution to the system of equations by graphing.

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Answer:

The third graph is your answer.

Step-by-step explanation:

I included a graph below with the correct graphing.

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2 years ago

A company donated money to valley high school. The principal decided to evenly split the funds between the fifteen classes to sp

nevsk [136]

Answer:

$256

Step-by-step explanation:

Each class got $256. I know this because I did 3,840 divided by 15 which got me the CORRECT answer of $256

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2 years ago

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5. Of the following data sets, which has the greatest range?

Anastasy [175]

Answer:

Its E

Step-by-step explanation:

Just add the set of number stogether and pick the highest number.

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3 years ago

It takes machine A x hours to manufacture a deck of cards that machine B can manufacture in y hours. If machine A operates alone

nlexa [21]

Answer:

The expression that shows how long the two machines will operate simultaneously is:

$\frac{y(100x-z)}{x+y}$

Step-by-step explanation:

We know that:

x: hours to manufacture a deck of cards for machine A

y: hours to manufacture a deck of cards for machine B

z: hours that machine A operates alone

The number of decks manufactured only by machine A is:

$\frac{z}{x}$

So, the remaining decks are given by:

$100-\frac{z}{x}=\frac{100x-z}{x}$

Then, the combined rate of machines A and B would be:

$\frac{1}{x} +\frac{1}{y} =\frac{x+y}{xy}$

The work-rate formula is:

$Amount= Rate \times Time$

Hence, the time that the two machines work simultaneously is:

$Time=\frac{Amount}{Rate}$

$Time=\frac{Amount}{Rate} =\frac{\frac{100x-z}{x} }{\frac{x+y}{xy} } ={\frac{100x-z}{x} \times \frac{xy}{x+y}=\frac{y(100x-z)}{x+y}$

3 0

3 years ago

Functions A and B give the population of City A and B respectively, t years since 1990. In each function, population is measured

Nataly_w [17]

Answer:

$B(4) > A(4)$

$t = 6$

Step-by-step explanation:

Given

$City\ A \to Purple$

$City\ B \to Blue$

See attachment for both functions

Solving (a): Which is greater in A(4) and B(4).

From the readings of the graph

$A(4)= 1.8$

$B(4) = 2.6$

By comparison:

$B(4) > A(4)$ because $2.6 > 1.8$

Solving (b): When is A(t) = B(t)

From the readings of the graph

$A(t) = B(t)$ when $t = 6$

i.e.

$A(t) = B(t) = 3\ million$

4 0

3 years ago