A mixture of 30 pounds of candy sells for $1.10 a pound. The mixture consists of chocolates worth $1.50 a pound and chocolates worth 90¢ a pound. How many pounds of the $1.50 chocolate were used to make the mixture?


If x represents the pounds of $1.50 chocolates used, then which of the following represents the pounds of 90¢ chocolates used?

x
30 - x
30

Answer:

5

Step-by-step explanation:

I used google

Step-by-step explanation:

3x + 2y = 6

-3x -3x

2y = 6 - 3x

/2 /2 /2

y = 3 - 1.5x

Answer:

$52

Step-by-step explanation:

Dicount: 20%

Discounted price: 80%

80% x $65 = $52

Topic: Percentage

If you would like to find out more, you can check out my insta (learntionary) I do post tips / notes. Notes for this topic have been posted already. you can take a look if you want to thanks

Answer (there are two solutions):

I hope this helps!

Answer:

x=-2   x=-3

Step-by-step explanation:

x²+5x+6=0

Factor

What 2 numbers multiply to 6 and add to 5

2*3 =6

2+3 =6

(x+2)(x+3) =0

Using the zero product property

x+2 =0  x+3 =0

x=-2   x=-3

Answer:

In the Northern Hemisphere right now it is Fall.

Answer:

19.7ft

Step-by-step explanation:

o^2+a^2=h^2

\dpi{100} h^{2}=(10ft)^{2} +(17ft)^{2}

h^2=100ft^2+289ft^2

h=389ft^2−−−−−√

→19.7ft

Answer:

Step-by-step explanation:

a^2 + b^2 = c^2

where a and b are the legs of the triangle and c is the hypotenuse

so 8^2 + 12^2 = c^2

64 + 144 = c^2

208 = c^2

take the square root of both sides

c = 14.422

Answer:

Fixed expences are expences that don't change month-to-month, whereas variable expences are things that are needing to budgeted for every month, but may vary a bit and are therefor usually estimated on a budget.

Step-by-step explanation:

For example, rent would be a fixed expense because you know it will be X amount due on the same day every month.  Food, on the other hand, would be a variable expense because it likely won't be the same amount month-to-month.

Answer:

Fixed expenses are expenses that stay the same for a person or a business. An example of a fixed expense is rent/mortgage. This expense doesn't change if you are only using the building for 2 weeks or the entire month, it's a set rate. A variable expense is an expense that changes like an electric bill, it varies based on the month and usage. When you budget, you can easily budget for your fixed expenses but you need to allow some room in your budget for expenses that change.

Answer:

See below

Step-by-step explanation:

1.

2.

4.

5.

Answer:

The unit rate for miles per gallon is 33.75. 33.75 as a fraction 135/75

Step-by-step explanation:

35.5 divided by 1.75 is 33.75

33.75 as a fraction is 135.75 which is an improper fraction

So you have to divide the numerator by the denominator

135 divided by 75 is 1.8 as a decimal

Answer:

28.4

Step-by-step explanation:

35 1/2 miles over 1 1/4 gallons of gasoline. 1 1/4 converted into an improper fraction is 5/4, so you multiply the numerator and denominator by 5/4. You need to multiply by 5/4 because you need to get to miles per gallon, which equals to 1. (A fraction multiplied by its reciprocal will always equal 1) once you've multiplied the numerator and denominator by the reciprocal, your answer will be 28.4 - hope this helped!

Answer:

x=-14/11 or -1.27 or -1 3/11

Step-by-step explanation:

Answer:

-14/11

Step-by-step explanation:

Simplify both sides of the equation

(Distribute)

(Combine Like Terms)

Subtract 22x from both sides.

Add 30 to both sides.

Divide both sides by -11

= -14/11

Answer:

5

Step-by-step explanation:

20×1/4=20/4=5

1/4×20/4=20/4=5

Answer:True

Step-by-step explanation:

Answer:

23 degrees

Step-by-step explanation:

angles subtended by a chord of the circle, on the same side of the chord ate equal

or

line segment joining 2 points subtends two equal angles

Answer:

yes

Step-by-step explanation:

because of the way this is put the result simplified would be 3x-8x-20

3-8=-5

so the answer is 20-5x

x=0.25 btw

Answer:

it would be 2 pieces and 1/3

Answer:

12 Rides

Step-by-step explanation:

After you pay $25 for admission you only have $15 left. If you multiply 1.25 × 12 you get 15.

Answer: A. 12

Step-by-step explanation:

40 - 24 = 15

15/1.25 = 12

Hope this helps :)

Answer:

it is D.... PERIODT

Step-by-step explanation:

Answer:

Step-by-step explanation:

Correct one is C

Answer:

7.04% decrease

Step-by-step explanation:

Lets use 5 example

5*0.17=0.85

5-0.85=4.15

4.15*0.12=0.498

4.15+0.498=4.648

7.04% of 5 is 4.648

Answer:

1.11w

Step-by-step explanation:

Let initial wage = w

Percentage increase in wage = 11%

Using the relation :

New Amount = initial * (1 + % increase)

New Amount = w * (1 + 0.11)

New amount = w * (1.11)

New amount = 1.11w

Answer: 69,960

Step-by-step explanation: all you have to do is divide 132,000 by 53%.

Answer:

the error is the last step. and the solution is 9

Step-by-step explanation:

8-5c=-37

-8         -8

-5c/-5 = -45/-5

c= 9                               i hope that helps you bobby:)

Answer:

11x - 8

General Formulas and Concepts:

Pre-Algebra

Algebra I

Step-by-step explanation:

Step 1: Define expression

3(x - 2) + 2(4x - 1)

Step 2: Simplify

Answer:

See Below.

Step-by-step explanation:

Let:

[tex]0.\overline{5}=n[/tex]

If we multiply both sides by 10, we get:

[tex]5.\overline{5}=10n[/tex]

Now, we will subtract n from both sides:

[tex]5.\overline{5}-n=10n-n[/tex]

On the left, we can replace the n:

[tex]5.\overline{5}-.\overline{5}=10n-n[/tex]

Subtract:

[tex]5=9n[/tex]

Divide both sides by 9:

[tex]n=\frac{5}{9}[/tex]

Hence:

[tex]n=0.\overline{5}=\frac{5}{9}[/tex]

Answer:

Step-by-step explanation:

Let [tex]n[/tex] and [tex]A[/tex] the number of jugs and the area of flowers, measured in jugs and square feet. We assume that exists a direct relationship between both variables. That is:

[tex]A \propto n[/tex]

[tex]A = k\cdot n[/tex] (1)

Where [tex]k[/tex] is the proportionality constant, measured in square feet per jug.

If we know that [tex]n = 1\,jug[/tex] and [tex]A = 140\,ft^{2}[/tex], then the proportionality constant is:

[tex]k = \frac{A}{n}[/tex]

[tex]k = 140\,\frac{ft^{2}}{jug}[/tex]

Then, the relationship between both variables is represented by:

[tex]A = 140\cdot n[/tex]

If we know that [tex]A = 175\,ft^{2}[/tex], then the minimum number of jugs needed to treat the area is:

[tex]n = \frac{175\,ft^{2}}{140\,\frac{ft^{2}}{jug} }[/tex]

[tex]n = 1.25\,jugs[/tex]

Since jugs represents a discrete set, then we round this number up to the next integer. In other words, we find that 2 jugs are needed to treat an area of 175 square feet.

Lastly, we present a graph to estimate the minimum value of jugs: