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2 years ago

Which is the best buy?

Mathematics

2 answers:

olga55 [171]2 years ago

4 0

Answer:

Step-by-step explanation:

When you divide each of the prices by the amount of candy bars, B is the lowest. The price for 1 candy bar with A's price is 1.75. The price for 1 candy bar for B's is 1.71. The price for 1 candy bar with C's is 1.73 and the price of 1 candy bar for D's is 1.74. Again, B has the lowest price for 1 candy bar so the correct answer is B.

marissa [1.9K]2 years ago

4 0

Answer:

Step-by-step explanation:

Let's find the unit price of each choice. Unit price is essentially how much one object is worth.

A) We know that there is $19.25 for 11 candy bars, so to find the unit price, simply divide 19.25 by 11:

19.25/11 = $1.75 / candy bar

B) We know that there is $15.39 for 9 candy bars, so to find the unit price, simply divide 15.39 by 9:

15.39/9 = $1.71 / candy bar

C) We know that there is $17.30 for 10 candy bars, so to find the unit price, simply divide 17.30 by 10:

17.30/10 = $1.73 / candy bar

D) We know that there is $22.62 for 13 candy bars, so to find the unit price, simply divide 22.62 by 13:

22.62/13 = $1.74 / candy bar

Comparing all these unit prices, we see that the deal from part B is the lowest, so that's the best one.

Hope this helps!

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Find the maximum value of P=3x+2y subject to the following constraints:<br> Please help me!!!

UkoKoshka [18]

Answer:

maximum value of P is 33

Step-by-step explanation:

Sketch the lines represented by the constraints

5x + y = 16

with intercepts ( $\frac{16}{5}$ , 0) and (0, 16)

2x + 3y = 22

with intercepts (11, 0) and (0, $\frac{22}{3}$ )

The solutions to both are below the lines.

Solve 5x + y = 16 and 2x + 3y = 22 simultaneously to find the point of intersection at (2, 6)

The coordinates of the vertices of the feasible region are

(0, 0), (0, 16), (2, 6), 11, 0)

Evaluate the objective function at each vertex

P = 3(0) + 2(0) = 0 + 0 = 0

P = 3(0) + 2(16) = 0 + 32 = 32

P = 3(2) + 2(6) = 6 + 12 = 18

P = 3(11) + 2(0) = 33 + 0 = 33

The maximum value of P is 33 when x = 11 and y = 0

6 0

2 years ago

Kat is painting the edge of a triangular stage prop with reflective orange paint. The lengths of the edges of the triangle are (

aksik [14]

Answer:

Perimeter of triangle =40 feet

Step-by-step explanation:

Given:

Lengths of edges of triangle:

$(3x-4)$ feet

$(x^2-1)$ feet

$(2x^2-15)$ feet

Perimeter of the triangle= Sum of all sides = $(3x-4)+(x^2-1)+(2x^2-15)$ feet

On simplifying by adding like terms:

Perimeter of triangle = $3x^2+3x-20$ feet

Given $x=4$

∴ Perimeter of triangle = $3(4)^2+3(4)-20$ $=3(16)+12-20$

$=48+12-20$ = 40 feet

6 0

3 years ago

Read 2 more answers

A scuba diver dove 313 feet below sea level then rose 26 feet?

klasskru [66]

Answer:

I think the answer would be 287?

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Which is bigger 45% or 5/11

oksano4ka [1.4K]

$\dfrac{5}{11}=0,\overline{45}=0,4545\ldots\\
45\%=0,45$

So $\dfrac{5}{11}\ \textgreater \ 45\%$

4 0

3 years ago

What is the equation in standard form of

ale4655 [162]

Answer:

3x-10y=-41

Step-by-step explanation:

"standard form of the line" is ax+by=c, where a, b, and c are free coefficients

first, we need to find the slope (m) of the line

that is calculated with the formula (y2-y1)/(x2-x1)

we have the points (3,5) and (-7,2)

label the points:

x1=3

y1=5

x2=-7

y2=2

substitute into the equation

m=(2-5)/(-7-3)

m=-3/-10

m=3/10

the slope is 3/10

before we put a line into standard form, we need to put it into another form first-- like slope-intercept form (y=mx+b, where m is the slope and b is the y intercept)

we already know the slope

here's our line so far:

y=3/10x+b

we need to find b; since the line will pass through the points (3,5) and (-7,2) we can use either one of them to find b

let's use (3,5) as an example. Substitute into the equation

5=3/10(3)+b

5=9/10+b

41/10=b

b is 41/10

this is the equation:

y=3/10x+41/10

now we can find the equation in standard form. Subtract 3/10x from both sides

-3/10x+y=41/10

a (the number in front of x cannot be negative OR less than one. First, let's multiply both sides by -1)

3/10x-y=-41/10

multiply both sides by 10 to clear the fraction

3x-10y=-41

^^ is the equation

hope this helps!

4 0

2 years ago