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4 years ago

Please solve both, graph and show work. answer also has to be in y=mx+b format.

Mathematics

1 answer:

alexandr1967 [171]4 years ago

8 0

2x-y=1
-2x -2x
-----------------
-y=-2x+1
Multiply by -1
y=2x-1

x+y=2
-x -x
------------
y= -x+2

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without using a calculator decide which option is better value for money: 300g Jelly beans $5.80 or 500g Jelly beans $9.90

yarga [219]

Answer:

500g Jelly beans $9.90

Step-by-step explanation:

To know the values.

Let's know how much a gram will cost in each case

300g Jelly beans $5.80

1g = 5.8/300

1 g = 0.01933

500g Jelly beans $9.90

1g = 9.9/500

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It's obvious that the second one has more value placed on it as it cost more per gram

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3 years ago

Evaluate the polynomial when x = 3 and y = - 8<br>x2 + y2 + xy<br>

Ivahew [28]

<h3>Answer: 49</h3>

Work Shown:

Replace x with 3, replace y with -8. Use order of operations PEMDAS to simplify.

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9 + 64 - 24

73 - 24

5 0

3 years ago

Read 2 more answers

What type of correlation would you expect to see between the number of purchased and the amount of money saved?

goblinko [34]

A negative correlation

5 0

4 years ago

100 POINTS!

butalik [34]

Answer:

it's giving B.

I can really explain why but it's giving B 5/6 is greater than da amount..

5 0

2 years ago

In your university nursing program the ratio of students who scored a grade of A vs B vs C on the final exam is 12:29:9. Assumin

Scilla [17]

Answer:

Hence, the correct option is 82%.

Step-by-step explanation:

Consider the provided information.

In your university nursing program the ratio of students who scored a grade of A vs B vs C on the final exam is 12:29:9.

We need to find the percentage of student who scored a grade of "B" or higher.

Let x is the common factor for the proportion.

Then, the number of students who got grade A is 12x

The number of students who got grade B is 29x

The number of students who got grade C is 9x.

Thus the total number of students = 12x+29x+9x = 50x

The percentage of student who scored a grade of "B" or higher:

12x+29x = 41x

$\frac{41x}{50x}\times{100}=82\%$

Hence, the correct option is 82%.

8 0

3 years ago