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3 years ago

Please help answer this two question correctly and please show work please don't answer if you don't don't know the answer .

Mathematics

2 answers:

pishuonlain [190]3 years ago

6 0

Answer:

Question 1 = $59.85.

Question 2 = 0.45

Step-by-step explanation:

Doug did cleaning for 1 ¾ hours.

Doug did paperwork for 2 1/3 hours.

Doug did serving for 1 5/8 hours.

Total time dough spent on restaurant =1 3/4+2 1/3+1 5/8 hours.

=7/4+7/3 +13/8= 42+56+39/24=137/24=5.7 hours.

In one hour Doug earns $10.50.

Therefore, in 5.7 hour Doug earns 5.7 x 10.50=$59.85.

Hence, the total which Doug earned is $59.85.

Second question answer

5/11 as a decimal is 0.45 or rounded to the nearest tenth is 0.5

anastassius [24]3 years ago

4 0

Answer:

Answer:

Question 1 = $59.85.

Question 2 = 0.45

Step-by-step explanation:

Doug did cleaning for 1 ¾ hours.

Doug did paperwork for 2 1/3 hours.

Doug did serving for 1 5/8 hours.

Total time dough spent on restaurant =1 3/4+2 1/3+1 5/8 hours.

=7/4+7/3 +13/8= 42+56+39/24=137/24=5.7 hours.

In one hour Doug earns $10.50.

Therefore, in 5.7 hour Doug earns 5.7 x 10.50=$59.85.

Hence, the total which Doug earned is $59.85.

Second question answer

5/11 as a decimal is 0.45 or rounded to the nearest tenth is 0.5

Click to let others know, how helpful is it

Read more on Brainly.com - brainly.com/question/13964919#readmoreAnswer:

Question 1 = $59.85.

Question 2 = 0.45

Step-by-step explanation:

Doug did cleaning for 1 ¾ hours.

Doug did paperwork for 2 1/3 hours.

Doug did serving for 1 5/8 hours.

Total time dough spent on restaurant =1 3/4+2 1/3+1 5/8 hours.

=7/4+7/3 +13/8= 42+56+39/24=137/24=5.7 hours.

In one hour Doug earns $10.50.

Therefore, in 5.7 hour Doug earns 5.7 x 10.50=$59.85.

Hence, the total which Doug earned is $59.85.

Second question answer

5/11 as a decimal is 0.45 or rounded to the nearest tenth is 0.5

Click to let others know, how helpful is it

Read more on Brainly.com - brainly.com/question/13964919#readmore

Step-by-step explanation:

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Construct a probability distribution for the data.

lianna [129]

Answer:

X : ___ 0 ____ 1 _____ 2 ______ 3

P(X) : _ 6/15 __ 5/15__ 3/15 ____ 1/15

Step-by-step explanation:

From the data, to produce a probability distribution for the data :

X : number of times blood is drawn ;

P(x) : probability that blood is drawn at X times

Hence, the probability distribution table for the data Given goes thus :

X : ___ 0 ____ 1 _____ 2 ______ 3

P(X) : _ 6/15 __ 5/15__ 3/15 ____ 1/15

Probability that blood is drawn 0 times = 6/15

Probability that blood is drawn 1 time = 5/15

Probability that blood is drawn 2 times = 3/15

Probability that blood is drawn 3 times = 1/15

(6/15 + 5/15 + 3/15 + 1/15) = 1

5 0

3 years ago

Apply the distributive property to create an equivalent expression.

ira [324]

Answer:

12e - 6f -8

Step-by-step explanation:

(6e−3f−4)⋅2

Multiply the 2 by each term inside the parentheses

2*6e -2*3f -4*2

12e - 6f -8

4 0

3 years ago

a decimal number to say 23.7 and it was rounded give a decimal number that is less than 22.37 and another that is greater than 2

chubhunter [2.5K]

23.7 IS GOING TO BE RIGHT BECAUSE 23.73 ROUNDS TO 23.7

6 0

3 years ago

Read 2 more answers

Which of the following graph represents the solution set for 5x+38 ≤ 4(2-5x)

Dvinal [7]

Answer:

Option C

Step-by-step explanation:

Given inequality is,

5x + 38 ≤ 4(2 - 5x)

5x + 38 ≤ 8 - 20x [Distributive property]

5x + 20x + 38 ≤ 8 - 20x + 20x [By adding 20x on both the sides of the inequality]

25x + 38 ≤ 8

(25x + 38) - 38 ≤ 8 - 38 [By subtracting 38 on both the sides of the inequality]

25x ≤ -30

$\frac{25x}{25}\leq -\frac{30}{25}$ [Dividing by 25 on both the sides of the inequality]

x ≤ 1.2

Therefore, Option (C) will be the correct graph.

7 0

3 years ago

There is a lightning rod on top of a building. From a location 500 feet from the base of the building, the angle of elevation to

Kitty [74]

<h2>Hello!</h2>

The answer is:

The height of the lightning rod is 27.4 feet.

To solve the problem, we need to use the given information about the two points of observation, since both are related (both finish and start at the same horizontal distance) we need to write to equations in order to establish a relationship.

So, writing the equations we have:

We know that the angle of elevation from the base of the buildings is 36°

Also, we know that from the same location, the angle of elevation to the top of the lightning rod is 38°.

Using the information we have:

To the top of the building:

$tan(\alpha )=\frac{DistanceToTheTopOfTheBuilding}{BuildingBase}\\\\tan(36\°)=\frac{DistanceToTheTopOfTheBuilding}{BuildingBase}$

To the top of the lightning rod:

$tan(\alpha )=\frac{DistanceToTheTopOfTheLightningRod}{BuildingBase}\\\\tan(38\°)=\frac{DistanceToTheTopOfTheLightningRod}{BuildingBase}$

Now, isolating we have:

$tan(36\°)=\frac{DistanceToTheTopOfTheBuilding}{BuildingBase}\\\\DistanceToTheTopOfTheBuilding=tan(36\°)*BuildingBase \\\\DistanceToTheTopOfTheBuilding=tan(36\°)*500feet=363.27feet$

Also, we have that:

$tan(38\°)=\frac{DistanceToTheTopOfTheLightningRod}{BuildingBase}\\\\DistanceToTheTopOfTheLightningRod=tan(38\°)*BuildingBase\\\\DistanceToTheTopOfTheLightningRod=tan(38\°)*500feet=390.64feet$

Therefore, if we want to calculate the height of the lightning rod, we need to do the following:

Let "x" the distance to the top of the building and "y" the distance to the top of the lightning rod, so:

$LightningRodHeight=y-x=390.64feet-363.27feet=27.37feet$

Rounding to the nearest foot, we have:

$LightningRodHeight=y-x=390.64feet-363.27feet=27.37feet=27.4feet$

Hence, the answer is:

The height of the lightning rod is 27.4 feet.

Have a nice day!

5 0

4 years ago