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
yawa3891 [41]
3 years ago
7

Need help with 22 I don’t understand

Mathematics
2 answers:
lianna [129]3 years ago
6 0
I don't understand part A for question 22 but to find the cost of the mugs, you have to isolate the variable.
1:  5x  +  4y  = 23
2:  4x  +  2y  = 16
step 1. 1-2= (5x - 4x) + (4y - 2y)= 23 -16
                      x + 2y =7
                      x = 7 - 2y
x is equal to 7 - 2y. Next you have to find out what y is.
1:  5x + 4y =23
     5(7 - 2y) + 4y = 23
     35 - 10y + 4y = 23
     35 - 6y = 23
     6y = 35 - 23
     6y/6 = 12/6
     y=2
Now that you know what y is, you have to figure the rest for x.
x = 7 - 2y
   = 7 - 2(2)  <---- (y= 2)
   = 7-4
   = 3
Now you know that x=3 and y=2.
Therefore, a mug costs $3 and a glass costs $2.


Mila [183]3 years ago
3 0
This is going to be hard to draw, but you just substitute Morning mugs for x and solve, and Morning glasses for y and solve. You do the same for the night mugs for x and solve. 

For A solve it in a way that if you substitute X and Y in a way it will turn out to be 23 or 16 in the <em />correct Situation. 
 
For B substitute the X and the Y so it will match up correctly. 
You might be interested in
2<br> Which is a factor of 4x + x - 14
kiruha [24]

Answer: 5x - 14

Step-by-step explanation: Combine like terms 4x + x - 14 and turn it into 5x - 14

4 0
3 years ago
Plz help this one is the last one of the day plz help
Juliette [100K]
We know 20% is 15
and now we find 80%

since 20% x 4 = 80%, we can multiply 15 by 4 to get 80% of 75

15 x 4 = 60

80% of 75 = 60
3 0
3 years ago
How many intergers are between √15 and √68​
worty [1.4K]

Answer:

I think the answer is Four

Step-by-step explanation:

3.9-8= 4,5,6,7

4 0
2 years ago
ILL GIVE THE BRAINLIEST pls help me with this question EVERYTHING IS IN THE PICTURE PLS HELP DUE TODAY ​​IF YOU PUT A WRONG ANSW
balu736 [363]

Answer:

60 yd

Step-by-step explanation:

Volume is length x width x height. Therefore in this case, we do 4x3x5 which turns out to be 60. Also don't forget to add yd after your answer because this is measured in yards.

8 0
3 years ago
Read 2 more answers
The legs of a right triangle measure
scZoUnD [109]

Answer:

108 in²

Step-by-step explanation:

Given that the legs of a right triangle are 12" and 18".

Be cause it is a right triangle (with 90 degrees between the legs), we can arbitrarily assign one of these to be the height and the other value automatically becomes the base.

Let 12" be height and 18" be base

area = 1/2 x height x base

= 1/2 x 12 x 18

= 108 in²

3 0
3 years ago
Other questions:
  • Write the word sentence as an inequality. A number y is no more than -8.
    13·1 answer
  • (PLEASE HELP I WILL MARK YOU BRAINLIEST)what’s the standard form of 2.33x10^-8
    13·2 answers
  • a small Computing Center has found that the number of jobs submitted per day to its computers has a mean of 65 jobs and a standa
    9·1 answer
  • State the restrictions on the range for y=x^4+8x^3+k
    9·1 answer
  • What parts of the American System are still in effect today
    13·1 answer
  • If x is an integer that satisfies the inequality −4≤2x≤6 , then
    15·2 answers
  • What would the total bill be of a painting that costs $20.50 with a tax rate of 6%?
    5·1 answer
  • Which of the points best represents the location of
    13·2 answers
  • The product of a number and -3 increased by 4 is 12
    13·1 answer
  • How to simplify 4 to 1 ratio
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!