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Andru [333]
3 years ago
8

The grades on a history midterm at Almond are roughly symmetric with y = 85 and o = 2.0.

Mathematics
1 answer:
Alik [6]3 years ago
7 0

Answer:

The z-score for Michael's exam grade is 0.50

Step-by-step explanation:

Data

  • mean, μ = 85
  • standard deviation, σ = 2.0
  • Michael's exam grade is the value of interest, x = 86

From definition, z-score is  computed as follows:

Z = (x - μ)/σ

Z = (86 - 85)/2.0

Z = 0.50

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Angle W and angle X are congruent. If their sum is 121 degrees, what is the measure of angle X?
Taya2010 [7]
The measure of angle x is 60.5. Congruent means they’re the same so you would divide 121 by 2 and get 60.5.
4 0
3 years ago
Koalas absorb only 25% of the fiber they eat. A koala absorbed 10.5 ounces of fiber in one day. How many ounces of fiber did he
kolbaska11 [484]
<h3>Answer:</h3>

42 ounces

<h3>Step-by-step explanation:</h3>

In this question, it is asking how many ounces of fiber did the Koala eat that day.

In order to solve this question, we would need to gather some important information from the question.

Important Information:

  • Koalas absorb only 25% of fiber they eat
  • Koala absorbed 10.5 ounces of fiber in 1 day

With the information above, we can solve the question.

We know that koalas only absorb 25% of fiber. We also know that a koala absorbed 10.5 ounces of fiber.

This means that the 10.5 ounces is 25% of fiber. This is 1/4 of the fiber it ate.

Now, we just need to find the other 3/4.

We could just multiply 10.5 by 4 to find how much fiber it ate that day.

10.5*4=42

When you multiply, you should get 42.

This means that the Koala ate 42 ounces of fiber that day.

<h3>I hope this helps you out.</h3><h3>Good luck on your academics.</h3><h3>Have a fantastic day!</h3>
4 0
3 years ago
Read 2 more answers
Inez and Joe worked at store that sells cell phones.Inez worked for 7 hrs and 23 minutes and Joel worked for 4 hrs and 51 minute
Paul [167]

Answer:

Inez worked for 2 hours 32 minutes more than Joe

Step-by-step explanation:

Here, we are to calculate the difference in the amount of time in which both of them spent working.

Mathematically, that would be the time spent by Inez minus the time spent by Joe

= 7 hrs 23 minutes - 4 hrs 51 minutes

This works like normal arithmetic subtraction;

Since we cannot subtract 51 minutes from 23 minutes, we need to borrow 1 hour ( 60 minutes) from 7 , and it becomes 6 while our minutes become (60 + 23 = 83 minutes).

So the difference here will be (6-4)hrs and (83-51) minutes = 2 hrs 32 minutes

4 0
3 years ago
What is the slope of side AC?
Alexxandr [17]

Answer:

The slope is  ( d-b)/ ( c-a)

Step-by-step explanation:

To find the slope we can use the slope formula

m = ( y2-y1_/(x2-x1)

  = ( d-b)/ ( c-a)

4 0
3 years ago
Rosemary put 7 dimes and 3 pennies any tip chart the cafe this show this amount as a decimal and as a fraction home much more ch
elena55 [62]

Answer:

Penny:

3/100 ; 0.03

Dimes :

7/10 ; 0.7

Amount to add to make whole number = $0.23

Step-by-step explanation:

Recall:

100 pennies = $1

1 penny = 1 / 100

3 Pennies = 3 / 100 (In fraction)

3 pennies = 0.03

10 dime = $1

1 dime = 10 /100 = 1/ 10

7 dimes = 7/10 (fraction)

7 dimes = 0.7

To make the money in jar a whole dollar :

Amount to be added :

1 - (0.03 + 0.70)

1 - 0.73

= $0.27

6 0
3 years ago
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