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Flura [38]
3 years ago
7

The amount of time t (in hours) it takes to complete a certain job varies inversely with the number of workers, w. The constant

of variation is 28. Find the time it takes to complete the job when the number of workers is 16.
A.1.75 hours

B.0.57 hours

C.12 hours

D.448 hour
Mathematics
1 answer:
Vlad [161]3 years ago
5 0

Answer: should be A: 1.75 hours

Step-by-step explanation: divide 28/16 to give you 7/4, then you should turn this into a decimal which gives you 1.75

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What is the equivalent expression plzz help
Firlakuza [10]
Correct answer: the first choice !
8 0
2 years ago
What is the length of the shadow cast by a 12-foot lamp post when the angle of elevation of the sun is 60º? (to the nearest tent
elena-s [515]

Answer:

6.9 foot.

Step-by-step explanation:

Given: Length of lamp post= 12-foot.

           The angle of elevation of the sun is 60°.

∴ The length of Lamp post, which is opposite is 12-foot.

  Now, finding the length of shadow cast by foot lamp.

Length of shadow is adjacent.

∴ We know the formula for Tan\theta= \frac{Opposite}{adjacent}

Next, putting the value in the formula.

⇒ Tan 60° = \frac{12}{adjacent}

Cross multiplying both side and using the value of Tan 60°

∴ Adjacent= \frac{12}{\sqrt{3} } = 6.92 ≅ 6.9 (nearest tenth value)

6.9 is the length of shadow cast by a 12-foot lamp post.

3 0
3 years ago
Help ASAP. Can somebody please tell if this is the correct answer. If not put the correct answer And help me if I need to graph
RSB [31]

Answer: closed circle pointing to the right.

Step-by-step explanation:

Given that the inequality equation is

6 ( 2 - 3y ) < = 36

Open the bracket

12 - 18y < = 36

Collect the like terms

- 18y < = 36 - 12

Make y the subject of formula

The inequality sign will change the moment you multiply or divide both sides by negative numbers

Y > = - 24/18

Y > = - 4/3

That is y is greater than or equal to negative 4/3

Graphing the above inequality,

The point will be between -2 and -1. And it will be closer to -1.

The arrow will point to the right and it will be a closed circle since it is greater than or equal to.

8 0
3 years ago
As an inventory manager, you must decide on the order quantity for an item. Its annual demand is 679 units. Ordering costs are $
oee [108]

The ordering-quantity that should be recommended will be 117 units.

<h3>How to calculate the order quantity?</h3>

The following can be deduced from the information given:

Demand = 679

Ordering cost = 7

Holding cost = 10%

Ordering quantity will be:

= ✓(2 × Demand × Ordering cost / Holding cost)

= ✓(2 × 679 × 7/0.1)

= ✓13580

= 116.53

= 117

Learn more about order quantity on:

brainly.com/question/27986709

#SPJ1

8 0
2 years ago
What is the distance between P(7, 0) and Q(8, 0)?
Yuri [45]
There is no change in the y axis, so it's a vertical distance, and 8-7=1, so the distance is 1
4 0
2 years ago
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