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
Paraphin [41]
3 years ago
12

The cost of a bottle of water is (w – 1) cents.

Mathematics
1 answer:
Elina [12.6K]3 years ago
7 0

Answer:

w= 25

Step-by-step explanation:

Cost of water= (w -1)¢

Cost of milk= (2w -11)¢

Let the certain number be x.

x(w -1)¢= 480¢ -----(1)

x(2w -11)¢= 780¢ -----(2)

From (1):

wx -x= 480 -----(3)

From (2):

2wx -11x= 780 -----(4)

(3) ×2:

2wx -2x= 960 -----(5)

(5) -(4):

(2wx -2x) -(2wx -11x)= 960 -780

Expand:

2wx -2x -2wx +11x= 180

9x= 180

Divide both sides by 9:

x= 180 ÷9

x= 20

Substitute x= 20 into (3):

w(20) -20= 480

20w -20= 480

20w= 480 +20

20w= 500

w= 500 ÷20

w= 25

You might be interested in
Anyone please that can help for periods of time
Viktor [21]
I think the answer is 60.5

4 0
3 years ago
Need help on this question thank you
Ivahew [28]

Answer:

B.

Step-by-step explanation:

8 0
4 years ago
Mr. Tesoro drew this quadrilateral with two equal sides that meet at a right angle and a pair of equal opposite angles that are
kirill [66]

Answer:

The answer is kite.

Step-by-step explanation:

Well, just looking at the definition of a kite, we can see that it lines up with Mr. Tesoro's description and drawing of the quadrilateral. A kite has one right angle that meets up witht two equal lines. The opposite pair of lines, that are much longer, don't meet up to be a right angle. The definitions line up, so there's your match; the anser is kite.

5 0
4 years ago
What is 2/5 divided by 1/6 HELPPPPP
shepuryov [24]

Answer: 2.4 as a decimal or 12/5 in fraction form

4 0
3 years ago
What is the area of the triangle shown below?
elena-s [515]

Answer:

5 un^2

Step-by-step explanation:

the liens from (0, 0) to (1, 3) and (1, 3) to (4, 2) are perpendicular meaning that the angle at (1, 3) is a right angle

to find the lengths of the sides we must use the pythagorean theorem

a^2 + b^2 = c^2

for the leftmost side

we have 1^2 + 3^2 = c^2

1 + 9 = 10

c^2 = 10

c = sqrt(10)

for the top side

we have

the same thing

1^2 + 3^2 = c^2

1 + 9 = 10

c^2 = 10

c = sqrt(10)

you must multiple sqrt(10) by sqrt(10) and then by 1/2

sqrt(10) * sqrt(10) is 10

10 * 1/2 is 5

the area is 5 un^2

5 0
1 year ago
Other questions:
  • Mrs. Anderson surveyed her class and asked each student, "How many hours do you spend
    14·1 answer
  • What produces a graph in a straight line
    11·1 answer
  • Sam have 1 1/5 meters of rope he cut off 1/2 meters and use it for a project for school how much real does Sam have left
    13·2 answers
  • Solve the following equations.<br> 5 ⋅ 23^(x+5) = 10240
    10·1 answer
  • Write a real word problem with 8x=96
    15·1 answer
  • The toll on a bridge is $ 1.00 for cars and $ 2.50 for trucks. In one hour, a toll operator raises a total of $ 105 in tolls. Wr
    10·2 answers
  • Select all the expressions that are equivalent to 2/3(9x+6)-1/2(8x-4)?
    11·1 answer
  • I just need to know the third one pls
    14·1 answer
  • Question content area top
    8·1 answer
  • It took 12 men 5 hours to build an airstrip. Working at the same rate, how many additional men could have been hired in order fo
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!