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
zmey [24]
3 years ago
8

Five times what number plus 10 equals 20?

Mathematics
2 answers:
Shkiper50 [21]3 years ago
7 0

Answer: 2

Step-by-step explanation: five times 2 is 10 plus 10 would equal 20

Readme [11.4K]3 years ago
3 0

Answer:

2

Step-by-step explanation:

5*2=10+10=20

hope this helps

You might be interested in
Suppose an astronaut can jump vertically with an initial velocity of 5 m/s. The time that it takes him to touch the ground is gi
Vitek1552 [10]

Answer:

t=1.020s

Step-by-step explanation:

Given Equation:

5t-0.5at^{2} =0

Actually the given equation is the 2nd equation of motion

i.e. S =V_{i} t+0.5at^{2}

where S=0 because the astronaut jumps on the earth

and initial velocity V_{i}=5

to find time t, put the given value of a=9.8m/s^{2} in the given equation, we get

5t-0.5(9.8)t^{2} =0\\t(5-4.9t)=0\\ \ dividing\ both\ sides\ by\ t\ we \ get\\ 5-4.9t=0\\4.9t=5\\t=\frac{5}{4.9}\\ t=1.020s

it will take t=1.020s to reach the ground if he jumps on the Earth

3 0
3 years ago
Explain how to find the deviation of an entry in a data set
Ilia_Sergeevich [38]
The answer is: Find the mean of the differences with the other numbers in the set<span>. Add the squared differences and then divide the total by the number of items in </span>data<span> in your </span>set; t<span>ake the square root of this mean of differences to </span>find<span> the standard </span>deviation.
3 0
3 years ago
A coin is tossed four times What is the probability of getting four heads? (1 mark) a) b) What is the probability of getting exa
BlackZzzverrR [31]
<h2>Answer:</h2>

1. A coin is tossed four times. What is the probability of getting four heads?

Each toss has a 1/2 chance of getting a head.

So the chance of getting all four heads can be calculated as :

1/2\times1/2\times1/2\times1/2=1/16

2. A coin is tossed four times. What is the probability of getting two heads?

Each toss can have 2 results, so 4 flips will have 2^{4} or 16 results.

Getting two heads means getting two tails also. So, we can get the number of times two heads come = \frac{4!}{2!2!} = 6

We can write the groups like - {HHTT,HTHT,HTTH,THHT,THTH,TTHH}

So, the required probability is : 6/16 or 3/8.

3. Not getting two heads means getting 3 tails and 1 head or all tails.

Probability of having all tails = 1/2\times1/2\times1/2\times1/2=1/16

Probability of one head(1st trial) and three tails = 1/16

Probability of one head (2nd trial) and three tails (the 1st, 3rd and 4th trials) = 1/16

Probability of one head (3rd trial) and three tails (the 1st, 2nd and 4th trials) = 1/16

Probability of one head (4th trial) and three tails (the 1st, 2nd and 3rd trials) = 1/16

So, the total probability showing only one or none head and at least three tails = 1/16+1/16+1/16+1/16+1/16=5/16

6 0
3 years ago
Last summer, Marrero was at Newgrange, a stone mound in Ireland that has a diameter of 250 feet. He found a walkway 62 feet long
timofeeve [1]

Answer:

  • 108 ft

Step-by-step explanation:

The line connecting the center with the end of the walkway is radius and is the hypotenuse of the right triangle.

Horizontal leg is the distance x.

<u>Vertical leg has the length:</u>

  • (250)/2 - 62 = 63 ft

<u>Using Pythagorean theorem to find the length of x:</u>

  • x² = (250/2)² - 63²
  • x² = 125² - 63²
  • x² = 11656
  • x = √11656
  • x = 107.96 ≈ 108

7 0
2 years ago
Complete the equation for h(x).<br>h(x) =​
bulgar [2K]

Answer:

I think the answer is hx to the power of 2

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Please help with this problem?
    10·1 answer
  • Simplify the radical expression 3/√3
    14·1 answer
  • Suppose that the functions s and t are defined for all real numbers: s(x)=4x^2 t(x)=x^3 Write the expressions for (t+s)(x) and (
    5·2 answers
  • Scale is .5 cm : 6 meters. In a drawing the picture is 3 cm. What is the actual measurement
    9·1 answer
  • Below are the demand and supply equations for overhead projectors in a certain market. In these equations, p represents price, D
    13·2 answers
  • the sum of two numbers,x and y is 12. the difference of x and two times y is 6. what are the values of x and y?
    5·1 answer
  • An equilateral triangle has a perimeter of 18 feet. If a square whose sides have the same length as one side of the triangle is
    5·1 answer
  • In ΔABC, the measure of ∠C=90°, AB = 86 feet, and CA = 61 feet. Find the measure of ∠A to the nearest degree
    6·2 answers
  • Find the perimeter of each figure select the figure that have a perimeter of 20 units
    12·2 answers
  • The sum of two numbers is 5. One of the numbers is 9 less than the other number.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!