3 years ago

The perimeter of a rectangle with a width x and a length that is 3 times the width

Mathematics

1 answer:

elena-s [515]3 years ago

4 0

Answer:

P=x+x+3x+3x

Step-by-step explanation:

For perimeter you add

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A. 86 B. 111 C. 69 D. 71

dangina [55]

All the angles of a triangle add up to 180 degrees.

30+39+<4= 180

69+<4= 180

Subtract 69 on both sides.

<4= 111 degrees

<1 and <4 are supplementary and adjacent. They equal 180 degrees as well.

111+<1= 180

<1= 69 degrees

I hope this helps!
~kaikers

8 0

4 years ago

Read 2 more answers

THE STUDENTS ON THE SCHOOL NEWSPAPER ARE CONTRIBUTING MONEY FOR A GIFT FOR THEIR STAFF ADVISOR. THE COST PER STUDENT FOR THE GIF

Vinvika [58]

Answer:

Step-by-step explanation:

5 0

3 years ago

Find an equation of the tangent to the curve at the given point by both eliminating the parameter and without eliminating the pa

liubo4ka [24]

Im sorry i need points , i am really sorry

4 0

3 years ago

Alabama papas must average 80 on five test . Scores on the first four test were 81 73 84 and 76 what is the lowest score she can

Salsk061 [2.6K]

She has to score at least 86 on her fifth test.

Further explanation:

We will use the average formula to find the fifth value.

Given

$Average\ required=80\\x_1=81\\x_2=73\\x_3=84\\x_4=76\\x_5=?$

We have to find x5

The formula for average is:

$x=\frac{Sum\ of\ values}{Total\ number\ of\ values}\\Here,\\n=5\\So,\\x=\frac{x_1+x_2+x_3+x_4+x_5}{5}\\Putting\ values\\80=\frac{81+73+84+76+x_5}{5}$

$80*5=314+x_5\\400=314+x_5\\x_5=400-314\\x_5=86$

She has to score at least 86 on her fifth test.

Keywords: Average, Word Problems

Learn more about average at:

#LearnwithBrainly

7 0

4 years ago

The school that Kathryn goes to is selling tickets to the annual talent show. On the first day of ticket sales the school sold 1

Kobotan [32]

Answer:

Step-by-step explanation:

a+s=14

a=14-s

a+8s=56, using a from above in this equation gives

14-s+8s=56

14+7s=56

7s=42

s=6

a=14-s

a=14-6=8

So student tickets cost $6 and adult tickets cost $8.

5 0

3 years ago