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4 years ago

What is this equation? Solve for X-2/7=5/7

Mathematics

2 answers:

Anna [14]4 years ago

5 0

x−2/7=5/7
so this means x = 1

Rufina [12.5K]4 years ago

5 0

A more detailed solution:
X - 2/7 = 5/7
=>Add 2/7 to both sides to isolate X
X - 2/7 + 2/7 = 5/7 + 2/7
=> Simplify
X + 0 = (5+2)/7
=> Simplify again
X = 7/7
=> Simplify one last time
X = 1

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4 years ago

1.- Maria compro $750 en mercancia, por pajar en efectivo le hacen un descuento del 15%, ¿cuánto pago Maria con el descuento?

miss Akunina [59]

Answer:

$637.5

Step-by-step explanation:

Given data

Cost of merchandise= $750

Discount= 15%

Let us find the amount of the discount

=15/100*750

=0.15*750

=$112.5

Hence the amount paid will be

=750-112.5

=$637.5

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2 years ago

Tommy charges $20 to mow a lawn. He will also trim bushes for an additional cost of $2 per bush. His goal is to earn at least $3

Darya [45]

Answer:

x ≥ 5

Step-by-step explanation:

$30 - (1 * $20)

$10 = x($2)

He needs to trim at least 5 bushes to make the extra $10 to reach $30.

7 0

3 years ago

of 100 children 3 quarters have pets 40 kids have a dog and 18 have a cat how many kids have other kinds of pets

vagabundo [1.1K]

Answer:

17 kids have other kinds of pets

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3 years ago

A seat on a Ferris wheel is level with the center of the wheel.The diameter of the wheel is 200 feet. Suppose the wheel rotated

Zanzabum

Answer: 86.6ft closer to the ground.

Step-by-step explanation:

The diameter of the wheel is 200ft

Then the radius, half of the diameter, is: r = 200ft/2 = 100ft.

Initially, the seat is at the same level that the center of the wheel.

And the distance between the center of the wheel and the bottom is the radius.

Then the initial position is at an angle of 0° from the x-axis. (where the (0,0) of this axis coincides with the center of the wheel=

Now, the wheel rotates 60°. (downwards, so we actually could use -60° measuring from the positive x-axis)

And thinking in this as a triangle rectangle, where the opposite angle is 60°, we can calculate the displacement in the vertical direction as:

y = sin(-60°)*R

y = sin(-60°)*100ft = -86.6ft

So the seat is 86.6ft closer to the ground.

6 0

3 years ago

Read 2 more answers