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
nydimaria [60]
3 years ago
9

Tan's electricity bill for the month of August was $267.00. His September bill showed a 2% increase from his August bill. In Oct

ober, his bill decreased 8% from the amount he was billed in August. How much did Tan spend on electricity over the tree-month period?
Mathematics
1 answer:
vovikov84 [41]3 years ago
7 0
267 x 0.02 = 5.34
267 + 5.34 = 272.34

267 x 0.08 = 21.36
267 - 21.36 = 245.64


267 + 272.34 + 245.64 = $784.98
You might be interested in
Is - 5/12 equivalent to 5/-12
Kamila [148]

Answer:

Yes

Step-by-step explanation:

-5/12 is the same as saying 5/-12

Hope this helps! have a nice day! Please consider making me Brainliest

5 0
3 years ago
Select the step in the solution that shows the first error.
siniylev [52]

Answer:

Step 2: 20x = 80 + 10x

Step-by-step explanation:

Step 1: 20x - 10 = 80 + 10x

Add 10 to each side

20x - 10+10 = 80+10 + 10x

20x  = 90 + 10x

Step 2: 20x = 80 + 10x   This has the first error

Step 3: 10x = 80

Step 4: x= 8

8 0
3 years ago
In one soccer season, a goalie saved 150 out of
Maru [420]

Answer:

0.81 (rounded to the nearest hundredth) & 81%

Step-by-step explanation:

150/185 = 30/37 ≈ 0.81 (rounded to the nearest hundredth)

0.81 is 81%

7 0
2 years ago
A cylinder shaped can needs to be constructed to hold 400 cubic centimeters of soup. The material for the sides of the can costs
LenKa [72]

Answer:

The dimensions of the can that will minimize the cost are a Radius of 3.17cm and a Height of 12.67cm.

Step-by-step explanation:

Volume of the Cylinder=400 cm³

Volume of a Cylinder=πr²h

Therefore: πr²h=400

h=\frac{400}{\pi r^2}

Total Surface Area of a Cylinder=2πr²+2πrh

Cost of the materials for the Top and Bottom=0.06 cents per square centimeter

Cost of the materials for the sides=0.03 cents per square centimeter

Cost of the Cylinder=0.06(2πr²)+0.03(2πrh)

C=0.12πr²+0.06πrh

Recall: h=\frac{400}{\pi r^2}

Therefore:

C(r)=0.12\pi r^2+0.06 \pi r(\frac{400}{\pi r^2})

C(r)=0.12\pi r^2+\frac{24}{r}

C(r)=\frac{0.12\pi r^3+24}{r}

The minimum cost occurs when the derivative of the Cost =0.

C^{'}(r)=\frac{6\pi r^3-600}{25r^2}

6\pi r^3-600=0

6\pi r^3=600

\pi r^3=100

r^3=\frac{100}{\pi}

r^3=31.83

r=3.17 cm

Recall that:

h=\frac{400}{\pi r^2}

h=\frac{400}{\pi *3.17^2}

h=12.67cm

The dimensions of the can that will minimize the cost are a Radius of 3.17cm and a Height of 12.67cm.

3 0
3 years ago
a. If a rabbit can move 7/5 miles every hour, then how many hours would it take for a rabbit to go 7 miles?
sergeinik [125]
5 hours because 7/5 *5/1=35/5 and 35 divided by 5 equals 7
3 0
3 years ago
Other questions:
  • Expandable form of 470,000
    10·1 answer
  • Solve this application using logarithms. How long will money in savings take to double at 5% interest compounded annually? Round
    15·1 answer
  • Complete the square to rewrite the equation in the form (x−h)2=p.
    14·1 answer
  • 25 POINTS!! Please help!!!! write with all steps. Thanks!
    6·1 answer
  • Hello friends what does congruent mean
    10·2 answers
  • WHAT IS 9 PLUS 10????????????? NEED HELP​
    14·2 answers
  • A triangle has an area of 40.2 square feet and a base of 12 feet. What is the height?
    6·2 answers
  • In Dylan's grade, there are 80 students. Currently, 40% of them are enrolled in health. How many students are enrolled in health
    13·2 answers
  • Mathematics I need help
    6·1 answer
  • Can someone help me with this quickly
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!