1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
expeople1 [14]
3 years ago
14

When I think of a number, double it, then add seven, I get 25. what number did I think of?

Mathematics
2 answers:
murzikaleks [220]3 years ago
6 0

Answer:

9

Step-by-step explanation:

let the number be x

double it = x+x = 2x

then add seven = 2x+7

i get 25 2x+7= 25

subtract 7 from both sides

2x= 25-7= 18

2x= 18

x= 18/2 = 9

sweet [91]3 years ago
5 0

Answer:

9

Step-by-step explanation:

25-7=18

half of 18 is 9

You might be interested in
Work out the volume of the cone, giving your answer
Gwar [14]

Answer:

If the given lengths of 7 cm, 24 cm, and 25 cm for the sides of a triangle satisfy the equation of the Pythagorean Theorem, then, yes, the given side lengths are those of a right triangle. Let's see if they are:

The well-known equation of the famous Pythagorean Theorem is:

a² + b² = c², which says that for a right triangle, the sum of the squares of the lengths of the two shorter sides of the triangle is equal to the square of the length of the longest side called the hypotenuse, where a and b are the lengths of the two shorter sides (also called the "legs") and c is the length of the hypotenuse (the side opposite the right angle).

We're given that a = 7 cm and b = 24 cm and that c = 25 cm. Substituting these values into the equation of the Pythagorean Theorem, we get:

a² + b² = c²

(7 cm)² + (24 cm)² = (25 cm)²

(7 cm)(7 cm) + (24 cm)(24 cm) = (25 cm)(25 cm)

49 cm² + 576 cm² = 625 cm²

625 cm² = 625 cm²

As we can see, the equation of the Pythagorean Theorem is satisfied, i.e., made a true statement, by the given lengths; therefore, if these three lengths, 7 cm, 24 cm, and 25 cm, are the lengths of the sides of a triangle, then the triangle is indeed a right triangle.

5 0
2 years ago
What is 8.33333 as a fraction?
beks73 [17]
8 \frac{1}{3}

I only know this because I remember the common fractions, and 1/3 is .3333 repeating.
4 0
2 years ago
Read 2 more answers
Find the volume of a pyramid with a square base, where the perimeter of the base is
NikAS [45]

Answer:

132 cm. 3. 3. a rectangular pyramid with a height of 5.2 meters and a base 8 ... 7. an oblique cone with a height of 10.5 millimeters and a radius of 1.6 ... base is about 15,400 square feet, find the volume of air that the ... ANSWER: 32.2 ft. 3. Find the volume of each solid. Round to the nearest tenth. eSolutions ...

Step-by-step explanation:

8 0
2 years ago
H(x)=4x+3 what is the coordinate pair for h (1) ?
marysya [2.9K]

Answer:

(1,7)

Step-by-step explanation:

SImply replace x by (1) in the expression to find the value of h:

h(1) = 4 (1) + 3 = 4 + 3 = 7

so for x = 1, h is 7 , which is written as: (1, 7)

8 0
3 years ago
If Tiva babysits for <br> hours, she will earn $32.
Viktor [21]

Answer:

true i think not 100% sure tho

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Other questions:
  • Last year a poll of 1000 voters conducted by the staff of Senator John found that 522 people approved of the job the senator was
    5·2 answers
  • Help me on this PLEASE i dont have much time What is the simplified form of this expression? 18 ÷ 6 + 8 × 7 – 12 + 8 × 2
    15·2 answers
  • One machine makes 8 robots every 4 hours. How many robots will that machine make in 12 hours
    7·1 answer
  • Solve for xxx. Your answer must be simplified. \dfrac x{-6}\geq-20 −6 x ​ ≥−20
    11·1 answer
  • What is the slope of the line? question 3
    13·2 answers
  • Pls help asap!! no trolls
    6·1 answer
  • Can anyone help me with this
    9·2 answers
  • What is the measure of 2U?
    10·1 answer
  • Which property is
    9·2 answers
  • Can someone please help with this.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!