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2 years ago

I just want to know if I did this correctly or not. This is something I just learned today.

Mathematics

1 answer:

Len [333]2 years ago

6 0

Answer:

yes I also learnt those today only ..

yes they r correct only

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A family uses 1,303 kWh of electric energy in a month. If the power company charges $0.08 per kilowatt hour, what is the total e

prisoha [69]

The total electric energy bill for the month is $\$104.24$

Solution: 

Given that

Electric energy consumed by family in a month = 1303 kWh

Power Company charges $\$0.08$ per kilowatt hour

Need to calculate total electric energy bill for the month.

Price of 1 kilowatt hour = $\$0.08$

$\text { Price of } 1303 \text { kilowatt hour }=1303 \text { x Price of } 1 \text { kilowatt hour }=1303 \times 0.08=\$ 104.24$

Total electric energy bill for the month = Price of Electric energy consumed by family in a month = Price of 1303 kilowatt hour = $\$104.24$

5 0

2 years ago

Wendy can wash a car twice as fast as Jason. When they work together, Wendy and Jason can wash a large van in 2 hours. How many

Ugo [173]

X= number of hours would it take Jason to wash the van by himself.
2x=number of hours would it take Wendy to wash the van by herserlf.

we calcaulate the fraction of work by Jason during one hour 

x hours-----------------------------1 work
1 hour---------------------- fraction of work during one hour.

fraction of work during one hour=(1 hour * 1work) / x hours=1/x

we calculate the fraction of work by Wendy during one hour.
2x hours-----------------------------1 work
1 hour---------------------- fraction of work during one hour.

fraction of work during one hour=(1 hour * 1work) / 2x hours=1/2x

We can suggest this equation:
2 hours(fraction of work by Jason during one hour + fraction of work by Wendy during one hour)=1 work

2(1/x + 1/2x)=1

least common multiple=2x
2(2+1)=2x
2(3)=2x
6=2x
x=6/2
x=3

answer: 3 hours would ti take Jason to wash the van by himself.

5 0

3 years ago

Subtract the following polynomials. (5x2+6)−(6x−5x2) im bad at math ;-;

Eddi Din [679]

Answer:

First off if you want this answered make sure it's clear when your multiplying or using X

5 0

3 years ago

Read 2 more answers

Identify the solution to the following inequality: -1/2 (x+3) > x - 3

mrs_skeptik [129]

Answer:

Step-by-step explanation:

- $\frac{1}{2}$ (x + 3) > x - 3 ( multiply both sides by 2 to clear the fraction )

- (x + 3) > 2x - 6 ← distribute parenthesis on left side by - 1

- x - 3 > 2x - 6 ( subtract 2x from both sides )

- 3x - 3 > - 6 ( add 3 to both sides )

- 3x > - 3

divide both sides by - 3, reversing the symbol as a result of dividing by a negative quantity

x < 1

8 0

2 years ago

Read 2 more answers

What is the surface area of the rectangular pyramid below?

Sidana [21]

Answer:

Option (A). 363 units²

Step-by-step explanation:

Surface area of the rectangular pyramid = Area of the rectangular base + Area of the lateral sides of the pyramid

Area of the rectangular base = Length × Width

= 11 × 11

= 121 units²

Area of the lateral sides = 4(Area of one lateral side)

= 4[ $\frac{1}{2}(\text{Base})(\text{Height})$ ]

= 2(11)(11)

= 242 square units

Area of the rectangular pyramid = 121 + 242

= 363 square units

Therefore, Option (A) will be the answer.

3 0

2 years ago

I just want to know if I did this correctly or not. This is something I just learned today.​

I just want to know if I did this correctly or not. This is something I just learned today.