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3 years ago

Simplify each state and state the excluded value

Mathematics

1 answer:

Mademuasel [1]3 years ago

7 0

Answer: 18r/1

What do you mean by "state the excluded value"?

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THIS IS DUE TODAY AND I NEED AS MUCH HELP AS I CAN ITS DUE WITHIN 15 MINS

xenn [34]

Answer:

1) -3/3

2) 1/2

3) 3/4

4) -2/1

5) 1/2

6) 4/1

Step-by-step explanation:

RISE OVER RUN

(Rise) Using the farthest dot on the left you count how much you rise till you align with the second dot (depending on whether you go up or down determines + or -)

(Run) Once aligned with the second dot count whilst 'running' towards it till you've reached it. (If you go right it's +, if you go left it's -)

Hard to explain, but it's really easy if you look up a tutorial.

7 0

3 years ago

There is a walking trail at the park. Four laps around the trail is a distance of 1 mile. How many laps does it take to walk 3/4

mamaluj [8]

Answer:

3 laps

Step-by-step explanation:

4/4 laps is 1 mile

3/4 laps is 3/4 of a mile

2/4 laps is 1/2 a mile (or 2/4 simplified)

1/4 laps is 1/4 milke

8 0

3 years ago

Solve the Equation -21 = 1/2c - 11

larisa [96]

Answer:

c = -20

Step-by-step explanation:

-21=1/2c-11

-21+11=1/2c

-10=1/2c

-10*2=c

-20=c

6 0

3 years ago

Read 2 more answers

What is the property of equality for AM = AM

Andrew [12]

Answer:

Reflexive

Step-by-step explanation:

When a=a, it is called the reflexive property

a=b then b=a is the symmetric property

a=b b=c then a=c is the transitive property

7 0

2 years ago

A professor has recorded exam grades for 10 students in his class, but one of the grades is no longer readable. If the mean sco

Nostrana [21]

Answer:

unreadable score = 35

Step-by-step explanation:

We are trying to find the score of one exam that is no longer readable, let's give that score the name "x". we can also give the addition of the rest of 9 readable s scores the letter "R".

There are two things we know, and for which we are going to create equations containing the unknowns "x", and "R":

1) The mean score of ALL exams (including the unreadable one) is 80

so the equation to represent this statement is:

mean of ALL exams = 80

By writing the mean of ALL scores (as the total of all scores added including "x") we can re-write the equation as:

$\frac{R+x}{10} =80$

since the mean is the addition of all values divided the total number of exams.

in a similar way we can write what the mean of just the readable exams is:

$\frac{R}{9} = 85\\$ (notice that this time we don't include the grade x in the addition, and we divide by 9 instead of 10 because only 9 exams are being considered for this mean.

Based on the equation above, we can find what "R" is by multiplying both sides by 9:

$\frac{R}{9} = 85\\R=85*9= 765$

Therefore we can now use this value of R in the very first equation we created, and solve for "x":

$\frac{R+x}{10} =80\\\frac{765+x}{10} =80\\765+x=80*10=800\\765+x=800\\x=800-765=35$

4 0

3 years ago