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3 years ago

If a =1 + r + 7r and b = 1 -r ,find an expression that equals A+ 3B in standard form. Answer:

Mathematics

1 answer:

Trava [24]3 years ago

7 0

Answer:

A+3B=4+5r

Step-by-step explanation:

Given that,

A = 1+r+7r

B = 1-r

We need to find an expression that is equal to A+3B.

Putting the values of A and B in A+3B, we get :

A+3B = 1+r+7r + 3(1-r)

=1+8r+3-3r

=(1+3) +(8r-3r)

=4+5r

Hence, the values of A+3B equals 4+5r.

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Who is Pythagorean? when was he born? when did he die?

Rama09 [41]

Answer:

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He was born in about 570 BC on the Greek island of Samos

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4 0

2 years ago

Several students from boxerville middle stood in a circle, evenly spaced, to play a game. If the 6th student was directly across

myrzilka [38]

Answer:

There were 14 students in the circle

Step-by-step explanation:

* Lets explain how to solve the problem

- The students stood in a circle

∴ The line joining each two opposite students is the diameter

of the circle

- The 6th student was directly across from the 13th student

∴ The 6th student is opposite to the 13th student

- Lets count how many students between 6th student and

13th student

∵ 7th , 8th , 9th , 10th , 11th , 12th students between the 6th

student and 13th student

∴ There are 6 students between them

- Lets count how many students between 13th student and

6th student

∵ 14th , 1st , 2nd , 3rd , 4th , 5th students between the 13th

student and 6th student

∴ There are 6 students between them

∵ There are 6 students between 6th and 13th

∵ There are 6 students between 13th and 6th

∵ There are 2 students in 6th and 13th

∴ The number of the students = 6 + 6 + 2 = 14

∴ There were 14 students in the circle

8 0

3 years ago

What is 3/16 as decimals

slamgirl [31]

0.1875 you must divide 3 by 16 the numerator by the denominator

3 0

3 years ago

Can anyone please help me out?

dem82 [27]

I think D is the answer

4 0

2 years ago

Tiffany starts walking her dog at 1:39 p.M. She gets back home at 2:28 p.M. How long did Tiffany walk her dog?

Tomtit [17]

Answer:

49 minutes

Step-by-step explanation:

Given :

Start time = 1:39 p. M

Return time = 2.28 p. M

Time spent Walking dog = difference between the start time and return time

Return time - start time

(2:28 p.m - 1:39p.m) = 49 minutes

Hence, Tiffany spent 49 minutes walking her dog

4 0

2 years ago

Read 2 more answers

If a =1 + r + 7r and b = 1 -r ,find an expression that equals A+ 3B in standard form. Answer: ​

If a =1 + r + 7r and b = 1 -r ,find an expression that equals A+ 3B in standard form. Answer: