There are 81 members in the marching band. The director wants to arrange the band members in rows and columns so that there are an equal number of people in each row and column. How many rows and columns would there be? ________ rows ________ columns

Answers

Answer 1
Answer: 9 rows and 9 columns
Answer 2
Answer: 81 is a perfect square root

√(81) = +/- 9
we take away the negative value

simply 9 rows and 9 columns.

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Solve the system using any method:
y = x - 3
y = 7x + 3

Answers

Answer:

x=-1, y=-4

Step-by-step explanation:

For this question, you can replace y in one equation with the second one.

This means x-3=7x+3.

From there, you subtract x from each side, giving -3=6x+3.

Subtracting 3from each side makes it -6=6x.

Dividing both sides by 6 leaves x isolated, with a result of x=-1.

You can substitute the value of x into either equation to work out y. I'm using the first one, as it has smaller numbers.

This equation is now y=-1-3, which can be solved for y=-4.

**This content involves simultaneous equations, which you may wish to revise. I'm always happy to help!

A submarine submerged at a depth of −40 feet dives 57 feet more. What is the new depth of the submarine?

Answers

Answer:

-97 feet

Step-by-step explanation:

-40+-57=-97

Ozzie is 6 years older than McKenzie. Theo is Ozzie's dad and is 3 times older than McKenzie. Ozzie is 8 years old. How old is Theo?​

Answers

Answer:

If Ozzie is 8 and 6 years older than McKenzie, then McKenzie is 2 years old. So if Theo is 3 times older than McKenzie, then Theo is 6 years old.

Final answer:

Theo's age is calculated by multiplying McKenzie's age by 3. Given that McKenzie is 2 years old (Ozzie's age minus 6), so Theo is 6 years old.

Explanation:

The problem requires the application of basic arithmetic operations, specifically addition and multiplication, to solve an age problem. We know that Ozzie is 8 years old. Since Ozzie is 6 years older than McKenzie, we subtract 6 from Ozzie's age to get McKenzie's age, which is 2. Theo is 3 times older than McKenzie. Thus, to get Theo's age, we multiply McKenzie's age (2) by 3, which results in 6 years old.

Learn more about Age Problem here:

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Yasmine is serving ice cream with the birthday cake at her party.She has perchased 19 1/2 pints of ice cream.She will serve 3/4 of a pint to each guest. How many guests can be served ice cream? Will there be any ice cream left?Justify your thinking

Answers

The number of guests that will be served ice cream is 26 guests and there will be no ice cream left.

The total number of ice cream purchased by Yasmine at her party is:

\mathbf{=19 (1)/(12) \ pints}

If each guest gets served with 3/4 pints, then the number of guests that will receive the shared amount of pints is:

\mathbf{= (3)/(4) \ pints}

The number of guests that can be served ice cream now is:

\mathbf{= (19 (1)/(12) \ pints)/( (3)/(4) \ pints)}

\mathbf{= ( (39)/(2) \ pints)/( (3)/(4) \ pints)}

\mathbf{= { (39)/(2) }* { (4)/(3)}}

\mathbf{= { (13)/(1) }* { (2)/(1)}}

= 26 guests

Therefore, we can conclude that the number of guests that will be served ice cream is 26 guests and there will be no ice cream left.

Learn more about fractions here:

brainly.com/question/18134643?referrer=searchResults

If you know your mathematics you should soon find out that 26 people can enjoy 3/4 pints of ice cream. There will be no ice cream left for anyone else.:-)

If a || b, m<2 = 63°, and m<9 = 105°, give the measure of each angle.m<1 =
M<3=
m<4=
m<5=
m<6=
m<7=
m<8=
m<10=
m<11=
m<12=
m<13=
m<14 =

Answers

Applying the relationship existing between angle pairs, the measure of each angle in the image are:

m<1 = 42°

m<3 = 75°

m<4 = 42°

m<5 = 63°

m<6 = 75°

m<7 = 105°

m<8 =  75°

m<10 = 75°

m<11 = 42°

m<12 = 138°

m<13 = 42°

m<14 = 138°

Given that a || b, where:

  • m<2 = 63°
  • m<9 = 105°, the missing angle measures will be determined as follows:

Find m<1:

m<1 + m<2 = m<9 (exterior interior angle theorem)

  • Substitute

m<1 + 63° = 105°

m<1 = 105° - 63°

m<1 = 42°

Find m<3:

m<1 + m<2 + m<3 = 180° (angles on a straight line)

  • Substitute

42° + 63°+ m<3 = 180°

105° + m<3 = 180°

m<3 = 180° - 105°

m<3 = 75°

Find m<4:

m<4 = m<1 (vertical angles theorem)

  • Substitute

m<4 = 42°

Find m<5:

m<5 = m<2 (vertical angles theorem)

  • Substitute

m<5 = 63°

Find m<6:

m<6 = m<3 (vertical angles theorem)

  • Substitute

m<6 = 75°

Find m<7:

m<7 + m<6 = 180° (corresponding angles theorem)

  • Substitute

m<7 + 75° = 180°

m<7 = 180° - 75°

m<7 = 105°

Find m<8:

m<8 = m<6 (alternate interior angles theorem)

  • Substitute

m<8 =  75°

Find m<10:

m<10 = m<6 (corresponding angles theorem)

  • Substitute

m<10 = 75°

Find m<11:

m<11 = m<4 (alternate interior angles theorem)

  • Substitute

m<11 = 42°

Find m<12:

m<12 = m<6 + m<5 (alternate interior angles theorem)

  • Substitute

m<12 = 75° + 63°

m<12 = 138°

Find m<13:

m<13 = m<11 (vertical angles theorem)

  • Substitute

m<13 = 42°

Find m<13:

m<14 = m<12 (vertical angles theorem)

  • Substitute

m<14 = 138°

Learn more here:

brainly.com/question/24607467

Answer:

a.    m<1 = 105° - 63°                  m<1 = 42°

b. m<3 + m<2 + m<1 = 180°      m<3 = 75°

c. m<4 = m<1                             m<4 = 42°

d. m<5 = m<2                            m<5 = 63°

e. m<6 = m<3                             m<6 = 75°

f. m<7 = m<9                             m<7 = 105°

g. m<8 = m<6                             m<8 = 75°

h. m<10 = m<8                            m<8 = 75°

i. m<11 = m<4                               m<11 = 42°

j. m<12 = 180° - m<11                   m<12 = 138°

k. m<13 = m<11                            m<13 = 42°

l. m<14 = m<12                            m<14 = 138°

Step-by-step explanation:  Sorry if not all are correct

Write the expression in simplest form. Assume that all variables are positive.

Answers

2x+5+3x-2
Answer is: 5x+3