1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vazorg [7]
3 years ago
7

Five donuts and 3 cinnamon rolls cost $11.50. Eight donuts and 6 cinnamon rolls

Mathematics
1 answer:
Papessa [141]3 years ago
4 0

Answer:

The cost of one donuts is $1.25 and the cost of one cinnamon is $1.75

Step-by-step explanation:

Let

x-----> the cost of one donuts

y ----> the cost of one cinnamon

we know that

5x+3y=11.50 -----> equation A

8x+6y=20.50 -----> equation B

Solve the system by graphing

Remember that the solution of the system of equations is the intersection point both graphs

using a graphing tool

The solution is the point (1.25,1.75)

see the attached figure

therefore

The cost of one donuts is $1.25 and the cost of one cinnamon is $1.75

You might be interested in
7-2(2+3x)=27what is he answer
Taya2010 [7]
<span>Simplifying 7 + -2(2 + 3x) = 27 7 + (2 * -2 + 3x * -2) = 27 7 + (-4 + -6x) = 27 Combine like terms: 7 + -4 = 3 3 + -6x = 27 Solving 3 + -6x = 27 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -6x = 27 + -3 Combine like terms: 3 + -3 = 0 0 + -6x = 27 + -3 -6x = 27 + -3 Combine like terms: 27 + -3 = 24 -6x = 24 Divide each side by '-6'. x = -4 Simplifying x = -4</span>
8 0
3 years ago
Read 2 more answers
Matrice question please help!
dimulka [17.4K]

Answer:

you have simply written 2 matrices in the picture. Tell me which operation do you want to apply on these rectangular matrices

Step-by-step explanation:

5 0
3 years ago
Pls answer!!!!!! The sum of two numbers is 46 and the difference is 20 what are the numbers?
katen-ka-za [31]

Answer:

33 and 13

Step-by-step explanation:

46/2 = 23

difference is 20, add 10 to one and subtract 10 from 23, giving you two numbers: 13 and 33.

7 0
3 years ago
For the following problem, assume that all given angles are in simplest form, so that if A is in QIV you may assume that 270° &l
d1i1m1o1n [39]

Answer:

Step-by-step explanation:

Given that angle A is in IV quadrant

So A/2 would be in II quadrant.

sin A = -1/3

cos A = \sqrt{1-sin^2 A} =\frac{2\sqrt{2} }{3}

(cos A is positive since in IV quadrant)

Using this we can find cos A/2

cosA = 2cos^2 \frac{A}{2} -1\\Or cos \frac{A}{2} =-\sqrt{\frac{1+cosA}{2} } =-\sqrt{\frac{3+2\sqrt{2} }{6} }

3 0
2 years ago
A circular mirror has a diameter of 12 inches. And a circular frame that is 3 inches wide surrounds the mirror. What is the comb
Lapatulllka [165]

Answer:

254.5 in.^2

Step-by-step explanation:

diameter of mirror = 12 in.

radius of mirror = diameter/2 = 13 in. / 2 = 6 in.

frame width = 3 in.

radius if combined mirror and frame = 6 in. + 3 in. = 9 in.

A = (pi)(r^2)

A = 3.14159 * (9 in.)^2

A = 3.14159 * 81 in.^2

A = 254.5 in.^2

8 0
2 years ago
Other questions:
  • Which is bigger 2 miles or 3 kilometers
    13·1 answer
  • PLEASE HELP ASAP
    10·1 answer
  • Two cars left the city for a suburb, 480 km away, at the same time. The speed of one of the cars was 20 km/hour greater than the
    9·1 answer
  • Bertha and Vernon are competing in a diving competition. Bertha's dive ended -28 m from the starting platform. Vernon's dive end
    7·1 answer
  • Which ordered pair is a solution to this equation?
    6·1 answer
  • Am i supposed to look at median?
    5·1 answer
  • One of the largest cookies made on record had a diameter of 78.75 feet. What was the circumference of the cookie?
    9·1 answer
  • Could someone help me i don’t understand it
    13·1 answer
  • a 2-liter bottle is filled completely with water from a faucet in 10 seconds. how much water is filled in to the bottles each se
    10·1 answer
  • Which function represents the graph below?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!