Mathematics High School

jerry bought 5 candy bars for $14.75. if the king size candy bar cost $3.75 and a regular size candy bar cost $1.75, how much of each candy bar did he buy?
one equation looks like:

3.75x+1.75y=14.75

Answers

Answer 1

Answer:

King size(x): 3

Regular size(y): 2

Steps:

System of Equations:

x+y = 5

3.75x+1.75y = 14.75

Multiply 3.75 on all sides.

3.75x+3.75y = 18.75

3.75x+1.75y = 14.75

Subtract top and bottom

            2y  = 4

            /2      /2

             y   =  2

After you know regular size amount, figure out king size ----3.

5-2 = 3.    

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Each set of ordered pairs represents a function. Write a rule that represents the function (0, 0), (1, 1), (2, 4), (3, 9), (4, 16)

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The function rule is y=x^2.

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Answers

Answer:

the unit rate would be 0.3 inches per minute (i'm pretty sure)

Step-by-step explanation:

because 6 divided by 20 = 0.3

hope this was correct and i hope this helped have a good rest of your day :)

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Answers

Answer:

Slope is y= -1/2x + 6.5

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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18(x + 1) = -54 pls help solve this...​

Answers

Answer:

x = 71

Step-by-step explanation:

18(x + 1) = -54

to start off, subtract 18 from both sides

18 - 18(x + 1) = -54 - 18

that should give you

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(its safe to take out paranthesis from problem by now) now take away 1 from each side

x + (1 - 1) = 72 - 1

that should give you

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Hope I helped

1. What is the length of
s?
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Answers

Answer:3 I think

Step-by-step explanation:

Student council is selling Roses and Candy Grams for Valentine's Day. Each Candy Gram costs $1.50
and each Rose costs $2.00. The student council made $368 from their sales. They sold a total of 217
Roses and Candy Grams. How many roses were sold? Show all your work for full marks! (Solve the linear
system using substitution or elimination).
Letr represent
Let c represent
I

Answers

Answer:

Number of Roses sold = 132

Number of Candy Grams sold = 85

Step-by-step explanation:

Let the number of Roses sold = [tex]r[/tex]

Let the number of Candy Grams sold = [tex]c[/tex]

Cost of one Rose = $1.50

Cost of [tex]x[/tex] Roses = $1.50 [tex]r[/tex]

Cost of one Candy Gram = $2.00

Cost of [tex]y[/tex] Candy Grams =  [tex]\$2.00 \times c[/tex]

Total number of Roses and Candy Grams sold = 217

i.e.

[tex]r+c=217 ..... (1)[/tex]

Total cost = $368

Writing equation as per question statement:

[tex]\$1.50r+\$2.00c=\$368 ..... (2)[/tex]

Using elimination method, let us eliminate [tex]y[/tex] of the two equations.

Multiplying equation (1) with 2 and subtracting equation (2) from it:

[tex]0.50r=2\times 217 - 368\\\Rightarrow 0.50r=434 - 368\\\Rightarrow 0.50r=66\\\Rightarrow r=132[/tex]

By equation (1):

[tex]c=217-132\\c=85[/tex]

So, the answer is:

Number of Roses sold = 132

Number of Candy Grams sold = 85

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Answers

Answer:

6 minutes

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Answer:

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a car can drive 600 miles on 18 gallons of gasoline. How many miles can a car drive on 15 gallons of gasoline​

Answers

Answer:

Use the cross technique if it’s name like that in English but , I wish you can understand it from what I‘ve written .

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Answers

Answer:

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Step-by-step explanation:

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Answers

Answer:

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Answers

Answer:

Compared to the graph of y = x, the graph of y = -2x is steeper.

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Answers

Answer:

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Step-by-step explanation:

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Answers

it’s a
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Answers

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True! Well kind of  

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Answer:

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Answers

Answer:

100

Step-by-step explanation:

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Answer:

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Answers

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Answer:

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Step-by-step explanation:

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Answers

Answer:

its c

Step-by-step explanation:

Quadrilateral ABCD is a square and the length of BD¯¯¯¯¯ is 10 cm. What is the length of AE¯¯¯¯¯ ? Enter your answer in the box. the length of AE¯¯¯¯¯ = cm

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Step-by-step explanation:

I took the test

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Answers

Answer:

Letmeansareaandb

then1,a,b,64areinGP

∴64=1×r

2

∴r=4

thena=1×r=4

b=1×r

2

=16.

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Seismosaurus is the longest known dinosaur. It measured 1800 inches. How far would 3000 Seismosaurus dinosaurs span if they were placed head to tail. Use scientific notation to calculate the length. (PLEASE HELP ME! MY WORK IS DUE TOMORROW)

Answers

Answer:

I am not sure sorry

Step-by-step explanation:

A caterer charges $275 for 15 people and $425 for 25 people. The cost, y, is a
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form for this situation.

Answers

Answer:

y = 15x + 50

Step-by-step explanation:

We set out by finding the slope

the two points give are (15,275) and (25,425)

Slope m is;

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So the equation is like;

y = 15x + b

To get b, let us use the point (15,275)

We have

275 = 15(15) + b

b = 275-225

b = 50

So the equation is;

y = 15x + 50

Please help
Tracy is saving to buy a new guitar that costs $253.77 (including tax). Tracy has saved $136.27, and she can save $23.50 each week.
Which equation could you use to find how long it will take to save for the guitar?
$253.77 + $136.27 = $23.50 w
$253.77 - w = $136.27 + $23.50
$136.27 + $23.50 w = $253.77
$23.50 w = $253.77

Answers

Answer:

is  the last one brof

Step-by-step explanation:

I’d say the third one
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