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3 years ago

A: $521.80 B:513.60 C: 467.90 D: 435.70

Mathematics

2 answers:

san4es73 [151]3 years ago

8 0

Answer: 521.80
It’s A hopeful you got it right

deff fn [24]3 years ago

6 0

Answer:

I think it´s A $521.80

Step-by-step explanation:

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A computer and printer cost total of $927 the cost of the computer is two times the cost of the planet find the cost of each ite

swat32

The cost of the printer is $309 and cost of the computer is $618.

Step-by-step explanation:

Let x denote the cost of computer

Let y denote the cost of printer

Total cost of printer and computer OR

x + y = $927

To find the cost of x and y,

Cost of computer = 2 x cost of the planet

x = 2y

x+y = 927

2y+y = 927

3y = 927

y = 309

x = 2y

x = 2(309)

x = 618

Therefore, the cost of the printer is $309 and cost of the computer is $618.

Keyword: Cost, Algebra

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3 years ago

A scooter travels 18 miles in the same time a bike covers 8 miles. If the rate of the scooter is two miles per hour than twice t

blsea [12.9K]

ANSWER:

A scooter travels 18 miles in the same time a bike covers 8 miles.The rates of both scooter and bike are 8 miles per hour and 18 miles per hour

SOLUTION:

Given, a scooter travels 18 miles in the same time a bike covers 8 miles.

The rate of the scooter is two miles per hour than twice the rate of the bike

We need to find both rates of scooter and bike.

Let the speed of scooter be x and speed of bike be y.

And, time taken to travel be t.

Then, for scooter:

$\bold{distance = speed \times time}$

$18 = x \times t$

$t=\frac{18}{x}$ --- (1)

For bike:

$\bold{distance = speed \times time}$

$8=y \times t$

$\mathrm{t}=\frac{8}{y}$ --- (2)

Now, equate both (1) and (2)

$\frac{18}{x}=\frac{8}{y}$

On cross-multiplication we get

18y = 8x

4x – 9y = 0 ---- (3)

We also know that, rate of the scooter is two miles per hour than twice the rate of the bike.

x = 2 + 2y ---- (4)

Now substitute (4) in (3)

4(2 + 2y) – 9y = 0

8 + 8y – 9y = 0

9y – 8y = 8

y = 8.

Again substitute y value in (4)

x = 2 + 2(8) = 2 + 16

x = 18.

Hence, the rates of both scooter and bike are 8 and 18 miles per hour

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4 years ago

A b - ba= C4 what is the value of c

sweet [91]

If the equation is $ab-ba=c^4$ , this is a unsolvable equation.

8 0

3 years ago

Which is closest to the volume of a sphere with a radius equal to 8 centimeters

NemiM [27]

Answer:

The volume of the sphere with radius 8 cm is 2143.573 centimeters³

Step-by-step explanation:

Given as :

The radius of the sphere = r = 8 cm

Let The volume of sphere = v cm³

Now, According to question

Volume of sphere = $\dfrac{4}{3}$ × π × radius³

where r is radius of sphere

π = 3.14

Or, v = $\dfrac{4}{3}$ × 3.14 × r³

Or, v = $\dfrac{4}{3}$ × 3.14 × 8³

Or, v = $\dfrac{4}{3}$ × 1607.68

Or, v = $\dfrac{4\times 1607.68}{3}$

∴ v = 2143.573 cm³

So, The volume of the sphere = v = 2143.573 cm³

Hence, The volume of the sphere with radius 8 cm is 2143.573 centimeters³ Answer

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3 years ago

To convert kilograrns to grams, you can use the ratio 1000grams/1kilogram

Eva8 [605]

Answer: True

The ratio is equivalent to

1 kg = 1000 g

4 0

3 years ago