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2 years ago

Joey's first 14 quiz grades in a marking period were as follows:

Mathematics

1 answer:

goblinko [34]2 years ago

7 0

Answer:

1. $Range = 24$

2. $Range = 98$

Step-by-step explanation:

Given

The data of quizzes

Required

Solving (a): Range of the 14 quizzes

$Range = Highest - Least$

In this case;

$Highest = 98$

$Least = 74$

So;

$Range = 98 - 74$

$Range = 24$

Solving for (b): Range of 15 quizzes

In this case;

Least = 0

So; Range becomes

$Range = 98 - 0$

$Range = 98$

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If four is half of five and two thirds of six is nine. what is thirty-two?

valkas [14]

Four is IV which is half of five. IX is nine which is 2 thirds of 6 so... thirty-two is 1 5/6

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2 years ago

A yellow jacket can fly 4.5 meters in 9 seconds.find the unit rate in meters per second

snow_lady [41]

The answer is .5 because to set it up you write 4.5/9 and then n/1 so 4.5 times 1 = 4.5 then you multiply 9 times n so it would be 9n, so then you didvide 9 by both sides so n=.5 so the unit rate is 1: .5

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2 years ago

Read 2 more answers

Sanjay consulted three electricians about upgrading the wiring in his home. Each electrician uses a linear formula that incorpor

Reptile [31]

Answer:
b.Each electrician charges a different base fee:

Explanation:
Each of the equations has two parts:
1- base fee that is independent of any variable (this would be the number that has no variable next to it)
2- an hourly rate depending on the number of hours x (this would be the number that has an x next to it)

For the first electrician:
y = 25x + 30
base fee = $30
hourly rate = $25

For the second electrician:
y = 30x + 25
base fee = $25
hourly rate = $30

For the third electrician:
y = 25x + 20
base fee = $20
hourly rate = $25

Now, let's check the choices:
a.Each electrician charges a different hourly rate:
This is incorrect as electricians 1 and 3 charge the same hourly rate ($25)

b.Each electrician charges a different base fee:
This is correct as all three base fees are different ($30, $20 and $25)

c.All three electricians charge the same hourly rate:
This is incorrect as electrician 2 has a different hourly rate

d. All three electricians charge the same base fee:
This is incorrect as the base fees for the three electricians are different ($30, $25 and $20)

Hope this helps :)

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2 years ago

Read 2 more answers

Cheese sticks that were previously priced at "10 for $1" are now "2 for $1". Find each percent change.

AysviL [449]

Answer:

The percent decrease in the number of cheese sticks you can buy for $1 is 80%.

Step-by-step explanation:

Given : Cheese sticks that were previously priced at "10 for $1" are now "2 for $1".

To find : The percent decrease in the number of cheese sticks you can buy for $1 ?

Solution :

The formula used to find percent decrease is given by,