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
professor190 [17]
3 years ago
11

ziggy sells coffee and donuts , the total number of cofees and donuts ziggy sells today is 100. Ziggy charges 3$ for coffee and

1$ per donut and made 180 today. How many coffees and donuts did he sell?
Mathematics
1 answer:
sergejj [24]3 years ago
6 0
You use a system of equations
x= coffee
y= donuts
x+y=100
3x+y=180
there’s 3 ways to solve system of equations substitution graphing and elimination. it would be easiest to use substitution here. So you multiply x+y=100 by -1 so it become -x-y=-100. then you combine it with the other equation and get 2x=80 so x=40 which means 40 cups of coffee were sold then you plug it back in to find y. 40+y=100. y=60.
y= 60 (donuts). x= 40 (coffee)
You might be interested in
Select all possible values of b.
lutik1710 [3]

Answer:

B? I am confused.

Step-by-step explanation:

7 0
3 years ago
A 30% solution of fertilizer is to be mixed with a 70% solution of fertilizer in order to get 40 gallons of a 60% solution. How
Murrr4er [49]

Answer:10 gallons of 30% solution and 30 gallons of 70% solution should be mixed.

Step-by-step explanation:

Let x represent the number of gallons of the 30% solution that should be mixed.

Let y represent the number of gallons of the 70% solution that should be mixed.

The total number of gallons of the mixture to be made is 40. This means that

x + y = 40

The 30% solution of fertilizer is to be mixed with a 70% solution of fertilizer in order to get 40 gallons of a 60% solution. This means that

0.3x + 0.7y = 0.6 × 40

0.3x + 0.7y = 24- - - - - - - - - - - - - -1

Substituting x = 40 - y into equation 1, it becomes

0.3(40 - y) + 0.7y = 24

12 - 0.3y + 0.7y = 24

- 0.3y + 0.7y = 24 - 12

0.4y = 12

y = 12/0.4

y = 30

x = 40 - y = 40 - 30

x = 10

5 0
3 years ago
I WILL MARK U BRAINLIEST PLEASEEE HELP ME WITH THIS!!!
slamgirl [31]

Answer:

this is answer

Step-by-step explanation:

Right now I don't have time. If u have doubt, send me a message. And I'll explain later.

hope it helps ☺️

6 0
2 years ago
Question: If two lines intersect, then the opposite angles formed at this intersect are congruent.
leonid [27]

Answer:

B

Step-by-step explanation:

False

7 0
3 years ago
CAN SOMEONE HELP!! SHOW YOUR WORK AND NO LINKS <br> -8+12e=-20<br> e=
Bond [772]

Answer:

-8+12e=-20

+8. +8

12e=-12

12e/12=-12/12

e= -1

4 0
2 years ago
Read 2 more answers
Other questions:
  • Can i please get help with this question?
    15·1 answer
  • Pls help meh... I need help
    9·2 answers
  • 4,024 divided by 68 using Partial qoutients
    7·1 answer
  • Determine the domain of the function. f as a function of x is equal to the square root of x plus one divided by x plus four time
    7·1 answer
  • :D please help mee☺️
    14·2 answers
  • 0.5 (ug)^2 (Mm)^-3 is equivalent to<br> ...... kg^2 cm^-3
    10·1 answer
  • What can be an equation of the line with a slope of −7 that passes through the point (−3,12).
    14·1 answer
  • A lake in East Texas was stocked with 3,000 trout in the year 2000. The number of fish in the lake is modeled by f(x) = 3000 + 1
    15·1 answer
  • Aleesia has a box of 52 muffins. She wants to put out plates that each have the same number of muffins. What is one possible way
    12·1 answer
  • Which of the lines is a line of symmetry for the hexagon?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!