3 years ago

Two times the sum of a number and 7

Mathematics

1 answer:

GenaCL600 [577]3 years ago

4 0

Answer:

2(x+7)

Step-by-step explanation:

i hope this helps

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The perimeter of a rectangle is 18 feet, and the area of the rectangle is 20 square feet. What is the width of the rectangle?

bogdanovich [222]

4 ft or 5 ft

i think thats right

7 0

3 years ago

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A total of 399 tickets were sold for the school play. They were either adult tickets or student tickets. The number of students

weqwewe [10]

133 adult tickets were sold.

Step-by-step explanation:

Given,

Total tickets sold for school play = 399

Let,

x represent the number of children tickets sold.

y represent the number of adult tickets sold.

According to given statement;

x+y=399 Eqn 1

x = 2y Eqn 2

Putting value of x from Eqn 2 in Eqn 1

$2y+y=399\\3y=399$

Dividing both sides by 3

$\frac{3y}{3}=\frac{399}{3}\\y=133$

133 adult tickets were sold.

Keywords: linear equation, substitution method

Learn more about substitution method at:

#LearnwithBrainly

4 0

3 years ago

A round barbecue pit is 2 meters in diameter. What is the distance around the barbecue pit? A) 12.56 meters. B) 18.84 meters. C)

Pani-rosa [81]

The formula for circumference is 2×pi × r

We are given the diameter of 2 meters which means the radius is 1 meter. We will use 3.14 for pi.

2 × pi × r =
2 (3.14)(1) =
6.28

The distance around the barbecue pit is

C. 6.28 meters

3 0

3 years ago

75 percent of the sutdents in a school went on a field trip. If 285 students went on the trip, how any students are in the schoo

natita [175]

Answer:

380

Step-by-step explanation:

285 / x = 75 / 100

Cross multiply 28500 = 75x

Divide by 75 380

8 0

2 years ago

Find the nth term of this 5 7 9 11 13

NemiM [27]

Firstly, seeing that the sequence is based on odd numbers I would say that this is the formula (which will allow you to know whatever term):

nth term = 2n-1

Hope this helps!

4 0

3 years ago

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