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2 years ago

An electrician completes 1/6 of a job in 2/3 hour. at this rate, how long does it take the electrician to complete the job?

Mathematics

2 answers:

Vanyuwa [196]2 years ago

5 0

Answer:

Step-by-step explanation:

1/6 x 2/3
(flip 1/6 to 6/1 so its easier to calculate; they mean the same thing)
6/1 x 2/3 = 12/3
3 x 12 = 4

Hope this helps <3

<em>try to stay out of trouble lol</em>

yulyashka [42]2 years ago

4 0

Answer:

4 hours.

Step-by-step explanation:

2/3 * 6

= 12/3

= 4 hours.

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Find the y-intercept and x-intercept of the line.<br> – 3x+9y= 14

pickupchik [31]

Answer:

$\huge\boxed{x-intercept=-\dfrac{14}{3}=-4\dfrac{2}{3}}\\\boxed{y-intercept=\dfrac{14}{9}=1\dfrac{5}{9}}$

Step-by-step explanation:

$-3x+9y=14\\\\x-intercept\ \text{for}\ y=0:\\\\-3x+9(0)=14\\-3x+0=14\\-3x=14\qquad\text{divide both sides by (-3)}\\\boxed{x=-\dfrac{14}{3}=-4\dfrac{2}{3}}}$

$y-intercept\ \text{for}\ x=0:\\\\-3(0)+9y=14\\0+9y=14\\9y=14\qquad\text{divide both sides by 9}\\\boxed{y=\dfrac{14}{9}=1\dfrac{5}{9}}$

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3 years ago

What is the answer to this question?

fenix001 [56]

Answer:

7.722cm^2

Step-by-step explanation:

Area of the Square: l*w

6*6=36

Square= 36cm^2

Area of the circle= πr^2

3.142*9=28.278

36-28.278=7.722

7 0

3 years ago

If you want to know how many shirts and pairs of pants he bought, what matrix equation could you write to solve?

Nonamiya [84]

Answer:

Step-by-step explanation:

The equations are ...

... s + p = 15

... 3s + 10p = 94

Matrix equation A is equivalent.

3 0

3 years ago

4. Joe received an hourly wage of $8.15. His boss gave him a 7% raise. How much does Joe make per hour now?

Olenka [21]

Answer:

$ 8.72

Step-by-step explanation:

How much does Joe make per hour now?

$8.15 + 7%·$8.15 =

= $8.15 + 7×8.15/100

= $8.15 + $57.05/100

= $8.15 + $0.57

= $ 8.72

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3 years ago

Read 2 more answers

What is the simplified form of 12x/900x²y4z6?

zalisa [80]

Answer:

$360xy^2|xz^3|$

Step-by-step explanation:

Given expression:

$12x \sqrt{900x^2y^4z^6}$

$\textsf{Apply radical rule} \quad \sqrt{ab}=\sqrt{a}\sqrt{b}:$

$\implies 12x \sqrt{900}\sqrt{x^2}\sqrt{y^4}\sqrt{z^6}$

Replace 900 with 30² :

$\implies 12x \sqrt{30^2}\sqrt{x^2}\sqrt{y^4}\sqrt{z^6}$

$\textsf{Apply radical rule} \quad \sqrt{a^2}=a, \quad a \geq 0:$

$\implies 12x \cdot 30|x|\sqrt{y^4}\sqrt{z^6}$

$\implies 360x|x|\sqrt{y^4}\sqrt{z^6}$

(We need to use the absolute value of √x² since the x term was originally to the power of 2, which means the value of x² is always positive since the exponent is even).

$\textsf{Apply exponent rule} \quad \sqrt{a^m}=a^{\frac{m}{2}}:$

$\implies 360x|x|\cdot y^{\frac{4}{2}}\cdot z^{\frac{6}{2}}$

Simplify:

$\implies 360xy^2|xz^3|$

(We need to use the absolute value of z³ since the z term was original to the power of 6, which means the value of z⁶ is always positive since the exponent is even).

7 0

2 years ago