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2 years ago

Why is negative 9/10 divided by 3 over 1

1 answer:

4 0

-9/10 divided by 3/1
Transform the problem from division to multiplication while flipping the second fraction from 3/1 to 1/3(one over three).
-9/10 times 1/3
Multiply and simplify
Final answer: -3/10(Negative three over ten)

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Answer:

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Step-by-step explanation:

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2 years ago

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Celeste started a new job with $500 in her account. after 50 hours of work, she deposits her pay check and she has $1500.

vovikov84 [41]

Answer:

$20 per hour

Step-by-step explanation:

1500 - 500 = 1000

1000 divided by 50 = 20

To check:

20 x 50 = 1000

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2 years ago

What is the length of the arc if: 11. r=10 n=20 A15(pi)/ 7 B13(pi)/ 5 C16(pi)/ 2 D11(pi)/ 4 E 10(pi)/ 9 F 9(pi)/ 4 12. r=3 n=6 A

Vilka [71]

Step-by-step explanation:

The formula for arc length [for the angle in degrees] is:

$L = 2\pi r \left(\dfrac{n}{360}\right)$

here,

$n$ = degrees

$r$ = radius

using this we'll solve all the parts:

r = 10, n = 20:

$L = 2\pi r \left(\dfrac{n}{360}\right)$

$L = 2\pi (10) \left(\dfrac{20}{360}\right)$

from here, it is just simplification:

2 and 360 can be resolved: 360 divided by 2 = 180

$L = \pi (10) \left(\dfrac{20}{180}\right)$

10 and 180 can be resolved: 180 divided by 10 = 18

$L = \pi \left(\dfrac{20}{18}\right)$

finally, both 20 and 18 are multiples of 2 and can be resolved:

$L = \pi \left(\dfrac{10}{9}\right)$

$L = \dfrac{10\pi}{9}$ Option (E)

r=3, n=6:

$L = 2\pi r \left(\dfrac{n}{360}\right)$

$L = 2\pi (3) \left(\dfrac{6}{360}\right)$

$L = \dfrac{\pi}{10}$ Option (D)

r=4 n=7

$L = 2\pi r \left(\dfrac{n}{360}\right)$

$L = 2\pi (4) \left(\dfrac{7}{360}\right)$

$L = \dfrac{7\pi}{45}$ Option (C)

r=2 n=x

$L = 2\pi r \left(\dfrac{n}{360}\right)$

$L = 2\pi (2) \left(\dfrac{x}{360}\right)$

$L = \dfrac{x\pi}{90}$ Option (D)

r=y n=x

$L = 2\pi r \left(\dfrac{n}{360}\right)$

$L = 2\pi (y) \left(\dfrac{x}{360}\right)$

$L = \dfrac{xy\pi}{180}$ Option (E)

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2 years ago

Which row of the input/output table is incorrect?

zaharov [31]

Row A: x = 3

y = 2x - 3

y = 2(3) - 3 = 3 This is correct

Row B: x = 5

y = 2x - 3

y = 2(5) - 3 = 7 This is correct

Row C: x = 7

y = 2x - 3

y = 2(7) - 3 = 11 this is correct

Row D: x = 10

y = 2x - 3

y = 2(10) - 3 = 17 THIS IS INCORRECT, SO ROW D

8 0

2 years ago

Find an ordered pair (x,y) that is a solution to the equation. x-3y=9 (x,y)= ?

Gemiola [76]

Answer:

(9,-3)

Step-by-step explanation:

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2 years ago