One coffee and two slices of cake cost 8 dollars in total. Two coffees and 3 slices of cake cost 14 dollars in total. What are the individual prices of one coffee and of one slice of cake?

Answers

Answer 1

Answer:

Step-by-step explanation:

coffee=c

cakes=d

c+2d=8

2c+3d=14

c=8-2d

2(8-2d)+3d=14

16-4d+3d=14

-d=-2

d=2

c+4=8

c=4

coffee=4 dollars each

cakes=2 dollars each

Answer 2

The price of coffee is $4 and price of slice of cake is $2.

What is Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given:

One coffee and two slices of cake cost 8 dollars in total.

Two coffees and 3 slices of cake cost 14 dollars in total.

let the price of coffees sold be x

let the price of slices of cake sold be y

Then, the system of equations are

x+ 2y = 8

2x+ 3y = 14

On solving

2(8- 2y)+ 3y= 14

16 - 4y + 3y= 14

-y= -2

y= 2

and, x = 8- 2(2)= 8- 4= 4

Hence,  price of coffee is $4 and price of slice of cake is $2.

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The main mast of s sailboat is supported by a rope that extends from the top of the mast to the deck. If the mast is 23 feet tall and the rope attaches to the deck 15 feet away from the base of the mast, how long is the rope? ​

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Answer:

27.46

Step-by-step explanation:

given that line a is parallel to line be and the slope on line a is 2 what is the slope of line b?

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Step-by-step explanation:

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Find the unit rate for this situation: type 145 words in 5 minutes

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Answer:

29 words per minute

Step-by-step explanation:

[tex] \frac{145}{5} = 29 \\ \frac{29}{1} = 29[/tex]

Answer:

29 words per minute

Step-by-step explanation:

145/5 = 29 words per minute

Hope that helps!

For a company picnic, Vijay ordered a box of fresh-baked gingerbread cookies and sugar cookies. He got 70 cookies in all. 28 of the cookies were gingerbread. What percentage of the cookies were gingerbread?

Answers

Answer: 40%

Step-by-step explanation:

There are 70 cookies in total.

The gingerbread cookies number 28.

The percentage that are gingerbread will therefore be:

= Number of gingerbread/ Total number of cookies * 100%

= 28 / 70 * 100%

= 40%

What is the area of the trapezoid below? 7in 4 in 5 in 12 in​

Answers

Answer:

1680 inches

Step-by-step explanation:

All you have to do is to multiply the numbers together.

7 × 4 = 28 in

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i am finding the volume of a shape, the area is 20mm and the length is 5cm what is the answer?​

Answers

Answer:

Whereas the basic formula for the area of a rectangular shape is length × width, the basic formula for volume is length × width × height.So the volume of the cube having side 15 mm is 3375 cubic inches.

Different Ways to Find Volume

Solve for Volume by Space. All physical objects occupy space, and you can find the volume for some of them by measuring their physical dimensions. ...

Solve for Volume by Density and Mass. Density is defined as an object's mass per a given unit of volume. ...

Solve for Volume by Displacement.

Step-by-step explanation:

A bottle contains 500 ml of orange juice. Write an expression for EACH of the following.

The amount of juice left in the bottle after pouring out
(i) p ml.

(ii) q glasses each containing r ml​

Answers

Answer:

1. 500-p

2. qr=500

(i) Amount of juice left in the bottle after pouring out [tex]p\,ml\boldsymbol{=(500-p)\,ml}[/tex]

Amount of juice left in the bottle after pouring out [tex]q[/tex] glasses each containing [tex]r[/tex] [tex]ml[/tex]​ [tex]\boldsymbol{=(500-qr)\,\,ml}[/tex]

An algebraic expression refers to a combination of symbols, numbers, variables, and arithmetic operations.

Volume of bottle of orange juice [tex]\boldsymbol{\boldsymbol{=500\,ml}}[/tex]

(i) Amount of juice left in the bottle after pouring out [tex]p\,ml\boldsymbol{=(500-p)\,ml}[/tex]

(ii) Amount of juice contained in [tex]q[/tex] glasses [tex]=(qr)\,ml[/tex]

So,

Amount of juice left in the bottle after pouring out [tex]qr\,\,ml[/tex] of juice [tex]\boldsymbol{=(500-qr)\,\,ml}[/tex]

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Plzzzzz help need fast if cannn plzzz

Answers

Answer:

D) 2.1

Step-by-step explanation:

HOPE IT HELPS YOU

YOU CAN MARK ME AS BRAINIEST IF YOU WANT

Answer: 2.1 I think please don’t be mad if I’m wrong

Step-by-step explanation:

Sheila is flying a kite with a string that makes a 59-degree angle with
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Answers

I'm assuming we're looking for the hypotenuse?

[tex]sin = \frac{opp}{adj} [/tex]

[tex] \sin(59) = \frac{94}{hyp} [/tex]

[tex]hyp = \frac{94}{ \sin(59) } [/tex]

[tex]hyp = 109.6635393382 feet[/tex]

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3
5
7
9
у
6
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Answers

Step-by-step explanation:

3 to the 5 must add 2 so to find answers 'y' we must add 2 at 9 so answers is 11

Julie earns $9 each week as an allowance. If she spends $5 each week for lunch money and saves the rest, which expression shows how much money she will save in x weeks?

Answers

Answer:

(x)4

Step-by-step explanation:

(x) is the amount of weeks and 4 is the amount of money that is saved every week.

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Answer:

X=45

Step-by-step explanation:

45+3x=180

180-45=135

135/3=45

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x=45

(3a - 1/2) (3a - 1/2)​

Answers

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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y-1=-3(x+2)

Step-by-step explanation:

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Answer:

Step-by-step explanation:

8/8     5/5

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Answers

Answer:

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Answers

Answer:

x = 3

Step-by-step explanation:

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Answers

Answer:

1/15

Step-by-step explanation:

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 -------

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Answer:

The answer is 1/10

Step-by-step explanation:

1/5 divided by 2

1/5 times 1/2

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Using technology, determine the monthly payment on a 35 month loan of $28,000 at 8.1% compounded monthly. Round your answer to the nearest cent.
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Well this is a quadratic equation so.
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2(y ^2-13) is it factored

the table below shows the heights of several books. Jean stacks a dictionary on top of her novel. How high is the stack of the two books?

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Step-by-step explanation:

Between 5 and 5 1/2 inches

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Answer:

4. perimeter = 232cm

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Step-by-step explanation:

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Step-by-step explanation:

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Answers

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Answers

Answer:

A. (7 - √14x) /(7 - 2x)

Step-by-step explanation:

Given the fraction:

7 / (7 + √14x)

Rationalize the denominator by multiplying (7 - √14x):

7 / (7 + √14x) =7(7 - √14x) / (7 + √14x)(7 - √14x) =7(7 - √14x) /(49 - 14x) =7(7 - √14x) /7(7 - 2x) =(7 - √14x) /(7 - 2x)

Matching choice us A

2. What is 45% of 90?
O A. 40.5
OB 45
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Answers

Answer:

this would be the answer 40.5.

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Ron purchases $32,000 worth of stock on his brokers advice and pays his broker a 1.25% broker fee. How much did he pay his broker! Show work please !!

Answers

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The table represents some points on the graph of the exponential function that models the radioactive decay of a sample of xenon-135.

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(See the picture below)

A) There is an asymptote at y = 70.

B) The y-intercept is located at (0, 70).

C) There is an asymptote at x = 0.

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Answers

Answer: b the y-intercept is located at (0,70)

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What is an exponent?

Let a be the initial value and x be the power of the exponent function and b be the increasing factor.

The exponent is given as

y = a(b)ˣ

The table addresses a few focuses on the diagram of the outstanding capability that models the radioactive rot of an example of xenon-135.

At x = 4.6, the value of 'y' will be 49.5.

[tex]\rm 49.5 = ab^{4.6} \ \ \ \ \ \ \ ...1\\[/tex]

At x = 9.2, the value of 'y' will be 35.

[tex]\rm 35= ab^{9.2} \ \ \ \ \ \ \ ...2[/tex]

From equations 1 and 2, then we have

[tex]\rm \dfrac{b^{9.2}}{b^{4.6}} = \dfrac{35}{49.5}\\\\b^{4.6} = 0.707\\\\b = 0.927\\[/tex]

Then the value of 'a' will be

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Then the equation is given as,

y = 70 · (0.927)ˣ

The graph is given below.

The exponential curve passes through the point (0, 70). Then the correct option is B.

More about the exponent link is given below.

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