Mathematics High School

Jacob sold 40 candy bars and made $65. He sold two types of
bars - chocolate for $2 each and peanut butter for $1 each.
How many of each type of candy bar did Jacob sell?

Answers

Answer 1

Answer:

Jacob sold 25 bars - chocolates and 15 peanut butter.

Step-by-step explanation:

Jacob sold 40 candy bars.

Let the bars - chocolate be x and peanut butter be y and made $65.

Now,

x + y = 40 ...(1)

2x + y = 65 ...(2)

Now, From equation (1) we get,

x + y = 40

x = 40 - y

Now, put the value of x = 40 - y in equation (2) we get,

2x + y = 65

2(40 - y) + y = 65

80 - 2y + y = 65

y = 80 - 65

y = 15

Now, put the value of y in equation (1)

x + y = 40

x + 15 = 40

x = 40 - 15

x = 25

The bars - chocolate = x = 25 and

peanut butter = y = 15

Thus, Jacob sold 25 bars - chocolates and 15 peanut butter.

-TheUnknownScientist

Related Questions

for the following question, find the volume of the given prism. round to the nearest tenth if necessary

Answers

Answer:

D) 269.3

Step-by-step explanation:

Rectangular prism volume:

V = whl

V = (12.1)(5.3)(4.2)

V = 269.346

solve for X.

Should be a decimal.

Answers

Hypotenuse = sqr of a2-b2

Answer : 29.83287

which of the following values are in the range of the function graphed below? check all that apply.

A. -2
B. 2
C. 3
D. 5
E. 1

Answers

Answer:

1, 2 and 3

Step-by-step explanation:

A store charges 17 1 2 % GCT on all sales. What is the total cost of a 3 shirts if 1 is marked at J$1200?

Answers

The objectives of this section are to

understand the difference between cash price and hire purchase
be able to calculate percentage increase and decrease in price
be able to calculate GCT in context.
You are familiar with buying items in shops and markets but often, when buying expensive goods, different methods of payment are available.

You might be offered a hire purchase agreement: you would pay a deposit and then pay the remainder of the cost of the item in a specified number of (often monthly) instalments. In a sale, the cash price might be reduced.

You need to remember that most goods are subject to a government sales tax, often referred to as VAT (value added tax). In Jamaica this government tax is GCT (general consumption tax) which is currently charged at 16
1
2
%.

Find the whole volume of the triangular pyramid to the nearest whole number

Answers

Answer:

The volume of the triangular pyramid to the nearest whole number is 924 inches cube

CAN SOMEONE PLZ HELP ME ON THIS ONE

Answers

Answer:

Both are true

Step-by-step explanation: When the letter has this (') that means it parallel

aka being mirrored

Write this number in standard form.
Seven hundred nine
thousand eight hundred
thirty-one

Answers

Answer:

709,831

Step-by-step explanation:

709,831

Answer:

709831

Explanation

I need help!!! Can someone answer this? It’s very simple!

Answers

Answer: The greatest common factor od 12 and 18 is 6

Step-by-step explanation:

Um vendedor de frutas saiu com 372 bananas se eu voltar para casa trazer 129 bananas quantas bananas ele vendeu operação e resposta?

Answers

Responder:

243

Explicação passo a passo:

Dado que :

Número inicial de bananas = 272

Número de bananas devolvidas com = 129

Para obter o número de bananas vendidas, usamos a operação de subtração do número de bananas com que ela saiu de casa e do número de bananas com que voltou.

Portanto, número de bananas vendidas:

372 - 129 = 243

The area of a room is 28 sq.cm.If the length of the room was 1m less and its breadth was 2m more than it would be in the shape of a square.Find the length and breadth of the room?​

Answers

Answer:

Length = 7cm

Breadth = 4cm

Step-by-step explanation:

The shape of the room is original my in a square shape

Area of a rectangle = Length × Breadth

Area = 28 cm²

Length = L - 1

Breadth = B + 2

Hence

28 = (L - 1)(B + 2)

b(b + 3) = 28

b² + 3b = 28

b² + 3b - 28 = 0

b² +7b - 4b - 28 = 0

Match the quadratic equations with the correct zeros

Answers

Answer:

Step-by-step explanation:

By zero product property,

Zeros of the given quadratic equation,

m² - 121 = 0

m² - (11)² = 0

(m + 11)(m - 11) = 0

m = -11. 11

Option C is the answer.

9x² - 3x - 2 = 0

9x² - 6x + 3x - 2 = 0

3x(3x - 2) + 1(3x - 2) = 0

(3x + 1)(3x - 2) = 0

x = [tex]-\frac{1}{3}, \frac{2}{3}[/tex]

Option B is the answer.

4x² + 2x - 6 = 0

2x² + x - 3 = 0

2x² + 3x - 2x - 3 = 0

x(2x + 3) - 1(2x + 3) = 0

(x - 1)(2x + 3) = 0

x = [tex]-\frac{3}{2},1[/tex]

Option A is the answer.

can someone help please what is the answer?

Answers

[tex]\frac{1}{2}q = - 24\\q = - 24 * 2\\q = - 48[/tex]

Answer:

The answer is q= -48

Step-by-step explanation:

The steps to solve are:

Combine multiplied terms into a single fraction.

Next, multiply by one.

Then, eliminate common denominators.

After that, cancel multiplied terms that are in the denominator.

Finally multiply the numbers.

Anita needs to construct ten cones for a class project. How many square feet of material will she need? Use 3.14 for π. Enter your answer in the box. Th radius is 6 ft and the height is 12 ft.

Answers

Assuming that Anita needs hollow right circular cones, we are solving for its lateral surface area, which is given by the formula πr√ (h²+r²), where r is the radius and h is the height.

r = 6 ft / 2 = 3 ft

Solving for the lateral surface area of one cone:

LSA = (3.14) (3) [√ (12²+3²) ] = 116.52 sq ft.

Since she needs 10 cones:

10 * 116.52 sq. ft = 1,165.2 sq ft.

She will need 1,165.2 sq ft of material.

Hope this helps you :)

Question 18 of 25
In a group of 40 students, the probability that at most 15 of them like to hike
is 47%. What is the probability that at least 16 of them like to hike?
A. 44%
B. 38%
C. 62%
D. 53%

Answers

Answer:

D 53 is the answer I just took the test

Answer: 53

Step-by-step explanation: taking the test

A function has the rule y = -2x + 11. Which of the following ordered pairs represents an input of 4 and its output?

(4, 3.5)
(4, 3)
(3.5, 4)
(3, 4)

please answer quickly

Answers

Answer:

(4, 3).

Step-by-step explanation:

Input 4  (x = 4):-

y = -2(4) + 11

= -8 + 11

= 3.

Write this expression in simplest form.

Answers

Answer:

[tex]7c\sqrt23d[/tex]

HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP

Answers

Answer:

D. (8,0), (4,0)

Step-by-step explanation:

they both on tha line

answer this MATH question thank you :)

Answers

Answer:

K

Step-by-step explanation:

By altering the initial height, you change the h-intercept. That will affect the maximum height and the t-intercept.

Answer: K

Answer:

post a new question so we can talk

Step-by-step explanation:

What is the area in square meters of the trapezoid below​

Answers

Answer:

69.3 meters squared

Step-by-step explanation:

1) Think of the shape as being divided into two sections (a rectangle and a triangle)

2) multiply 5.2 times 7 to find the area of the rectangle (36.4)

3) subtract 5.2 from 14.6 to find the base of the triangle (9.4)

4) multiply 9.4 by the height of the triangle 7 (65.8)

5) divide 65.8 by two because a triangle is half of the needed rectangle

6) this leaves 32.9

7) add 32.9 and 36.4 to get your final answer of 69.3 meters squared

hope this helps :)

Find the factors of x3−7x−6

(x+3)(x+2)(x−1)
(x−3)(x+2)(x+1)
(x−4)(x−2)(x+1)
(x−6)(x−1)(x+1)

Answers

Answer:

B. (x−3)(x+2)(x+1)

Step-by-step explanation:

Possible options are 1 or 2 as each has odd number of negative coefficients.

Open parenthesis and verify:

(x+3)(x+2)(x−1) = ³ + 4x² + x - 6, false(x−3)(x+2)(x+1) = x³ - 7x - 6, true

What is the area of this figure?​

Answers

The answer to this problem is A) 760.27 in^2

I believe it’s a .....not sure

(2x-4)^2 please solve with steps

Answers

Answer

what is the equation equal to

Step-by-step explanation:

If thats the only thing they give it is (2x-4)(2x-4)

Answer:

4x - 16

Step-by-step explanation:

2x x 2x = 4x (2x^2)

4 x 4 = 16 (4^2)

You had to distribute that ^2.

Keep the SUBTRACTION sign.

therefore your answer is:

4x - 16

The half-life of a radioactive kind of thorium is 2 years. How much will be left after 4 years, if
you start with 992 grams of it?
grams

Answers

Answer:

ZOOM PLZ COME WE R BORED

MEETING ID 798 4170 2552

PASSWORD:XCNeV3

Step-by-step explanation:

What is the volume of this cylinder?
Use 3.14 and round your answer to the nearest hundredth.
14 mm
7 mm

Answers

4300( 4308.08)

Your welcome

So all you have to do is multiply the radius by itself. So in this case 14x14=196.

So then multiply that by pi aka 3.14. So 196x3.14=615.44 then multiply that by your height in this case its 7 So 615.44x7=4308.08

Please help me
GEOMETRY
And please let me know how you solved it thank u!

Answers

Answer:

x = 6

Step-by-step explanation:

In the picture :) Hope that helped!

For an upcoming election, 500 registered voters were surveyed on a tax increase. 43% were for a tax increase and 51% were against a tax increase. The margin of error was 6%. What is an accurate conclusion from the poll?
a. Against a tax increase will win because it is above 50%.
b. The nal result is undecided because of the margin of error.
c. The nal result is undecided because percentages do not add up to 100%.
d. Against a tax increase will win because the margin of error will increase their percentage.

Answers

Against a tax increase because either way the margin of error may fall, against will still have more votes

Question 1 of 10
Which rays form the sides of C
E
O A. DC
B. CE
C. CD
D. DE
E. ED
F. EC

Answers

Answer:

Ray DC and Ray DE

HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP

Answers

i’m pretty sure you’d get 3s + 9?

Answer:

C

Step-by-step explanation:

We can cross A and B off cause it involves multiplication

We can cross D off cause 3 + 3 + 3 = 9, not 27

Have a good day! Can u mark me as brainlist? :)

help me asap please, i really need it.
THERE ARE TWO ANSWERS FOR EACH QUESTION, PLEASE PROVIDE BOTH ANSWERS FOR EACH QUESTION TO EARN FULL CREDIT. BE SURE TO NUMBER YOUR ANSWERS.

Answers

cos 48° = b / √(a²+b²)

tan 48° = a/b

sin 48° = a / √(a²+b²)

-4(3x+2)-5x what is the answer to this question?

Answers

Answer:

Step-by-step explanation:

-4(3x+2)-5x

-12x - 8 - 5x

Solving like terms

-17x - 8

If you want to find the value of x then

-17x - 8 = 0

-17x = 8

x = 8/-17

Answer: -17x - 8

Step-by-step explanation:

First, we distribute the -4 into the parenthesis:

-4(3x + 2) - 5x

-12x - 8 - 5x

Now, we combine like terms:

-12x - 8 - 5x

-17x - 8

You can't simplify this expression any further because of the variable, so this is your final answer :)

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