Answer:
-7
Step-by-step explanation:
Answer:
-7
Step-by-step explanation:
-2 +(-5) is basically -2 - 5
Don't let it confuse you.
Can someone help me with this ?
Alex and Sophia share £20 in the ratio of 2:3. Work out how much money each person gets.
Answer:
Alex will get 8 pounds and Sophia will get 12 pounds
Step-by-step explanation:
Since the ratio is 2:3, the total ratio is 5 (2+3)
divide 20 pounds from 5
and each unit will have 4 pounds
Therefore, Alex will get 8 pounds and Sophia will get 12 pounds
Stephen and Bridget win some money and share it in the ratio 1:3. Stephen gets £11. How
much did they win in total?
Answer:
£44
Step-by-step explanation:
We have been given the ratio 1 : 3 , where 1 is stephens value and 3 is bridgets value.
We have told that stephen gets £11.
The relationship between stephens 'value' of 1 and the amount of money that he actually gets (11) is x11.
Therefore we must also x11 to Bridgets value.
11 x 3 = £33
Now, we add the two answers to find how much they won in total.
£33 + £11 = £44
hope this helps :)
The following table shows the number of alligators in each body of water near Tom's house. Number of alligators 7,0,11,10 find the mean number of alligators.
Answer:
Mean number of alligators = 7
Step-by-step explanation:
Given that:
Number of alligators
7, 0, 11, 10
Sum of quantities = 7 + 0 + 11 + 10
Sum of quantities = 28
Number of quantities = 4
We can find the average by dividing the sum of quantities by number of quantities.
Mean = [tex]\frac{28}{4}[/tex]
Mean = 7
Hence,
Mean number of alligators = 7
Answer:
7
Step-by-step explanation:
So there were four different places and four different amounts of alligators.
The numbers are 7, 0, 11, 10.
When you add 7, 0, 11, 10, you get the number, you get 28.
You then divide 28 by 4, because there are four different numebrs on the chart. 7(1), 0(2), 11(3), 10(4).
After you divide this, the mean would be 7 because 28/4 = 7. (28/4 means 28 divided by 7)
does anybody play Ro,blox???
Answer:
yea bro
Step-by-step explanation:
i play
What’s the value of x?
Answer:
wala nashang value sayu dahil may iba nasha
Zearn Mission 2 Assessment
Answer:
What do you mean?
Step-by-step explanation:
I can help if I know what's goin' on.
blank + blank = internal energy
Answer:
kinectic + electric = internal
Step-by-step explanation:
Internal energy U of a system or a body with well defined boundaries is the total of the kinetic energy due to the motion of molecules and the potential energy associated with the vibrational motion and electric energy of atoms within molecules. Internal energy also includes the energy in all the chemical bonds.
Answer:
The internal energy of a system is identified with the random, disordered motion of molecules; the total (internal) energy in a system includes potential and kinetic energy. This is contrast to external energy which is a function of the sample with respect to the outside environment (e.g. kinetic energy if the sample is moving or potential energy if the sample is at a height from the ground etc). The symbol for Internal Energy Change is ΔU .
Energy on a smaller scale
Internal energy includes energy on a microscopic scale
It is the sum of all the microscopic energies such as:
translational kinetic energy
vibrational and rotational kinetic energy
potential energy from intermolecular forces
One gram of water at zero °Celsius compared with one gram of copper at zero °Celsius do NOT have the same internal energy because even though their kinetic energies are equal, water has a much higher potential energy causing its internal energy to be much greater than the copper's internal energy.
Assume there is a 50% chance of having a boy. Find the probability of
exactly two boys in three births.
Answer:
0.375
Step-by-step explanation:
Given that there is 50% chance of having a boy in a single birth.
Let it be represented by p, so
p=50%=0.5
According to Bernoulli's theorem, the probability of exactly r success in n trials is
[tex]P(r)=\binom {n}{ r} p^r(1-p)^{n-r}[/tex]
where p is the probability of success.
So, the probability of exactly 2 boys (success) in a total of 3 birth (trials) is
[tex]P(r=2)=\binom {3}{ 2} p^2(1-p)^{3-2}[/tex]
As p=0.5, so
[tex]P(r=2)=\binom {3}{ 2} (0.5)^2(1-0.5)^{3-2} \\\\=\binom {3}{2} (0.5)^2(0.5)^{1} \\\\=3\times 0.5^3[/tex]
=0.375
Hence, the probability of exactly 2 boys in a total of 3 birth is 0.375.
The cost of attending two carnivals based on the number of ride tickets purchased is shown below. what are the system of equations.
Answer:
2+2 = 4
Step-by-step explanation:
1+1= the answer
A) 8 dogs for every 5 cats
B) S1.25 per song
c) lap per minute
60 students
D)
2 classes
15 players
E)
1 team
F) 4 cups per 2 batches
А.
ОВ.
D.
а Е
F
Answer:
I will answer but I need the question
Step-by-step explanation:
How many points does the team have?
How many games has this team lost?
Step-by-step explanation:
P = 3W + D
When W = 5 and D = 3, P = 3(5) + 3 = 18.
When P = 50 and D = 14,
(50) = 3W + (14), 3W = 36, W = 12.
Since the team has 12 wins and 14 draws,
they have 35 - 12 - 14 = 9 losses.
Please help me I don’t understand what I’m supposed to do ! Unit 1 - Triangle Congruence
State if the two triangles are congruent. If they are, state how you know.
Answer:
i dont either
Step-by-step explanation:
see question down below
Answer:
okay so the answer is 3200 but i dont know which one i think it b
Step-by-step explanation:
Please help!
The functions f(x) and g(x) are shown below:
f(x) = 2x
g(x) = 2x
Which statement best describes the graph of f(x) and g(x)? (1 point)
Answer:
i think f(x)=2x may be if right or wrong say me ok
25 = 5 • 3 = 15 True or False
Answer:
False
Step-by-step explanation:
UPPER AND LOWER BOUNDARIES
People who understand please reply
a = 49.0 rounded to 1 DP
b= 7.62 rounded to 2 DP
Find the minimum of a - b
Answer:
The minimum of a - b is 41.325
Step-by-step explanation:
Let us solve the question using upper and lower boundaries
∵ a = 49.0 rounded to 1 decimal place
∵ 1 decimal place means 0.1
→ Divide 0.1 by 2
∵ 0.1 ÷ 2 = 0.05
→ Add 0.05 to the rounded number to get the upper boundary
∵ 49.0 + 0.05 = 49.05
∴ The upper boundary = 49.05
→ Subtract 0.05 from the rounded number to get the lower boundary
∵ 49.0 - 0.05 = 48.95
∴ The lower boundary = 48.95
∴ The range of a is 48.95 ≤ a < 49.05
∵ b = 7.62 rounded to 2 decimal places
∵ 2 decimal place means 0.10
→ Divide 0.01 by 2
∵ 0.01 ÷ 2 = 0.005
→ Add 0.005 to the rounded number to get the upper boundary
∵ 7.62 + 0.005 = 7.625
∴ The upper boundary = 7.625
→ Subtract 0.005 from the rounded number to get the lower boundary
∵ 7.62 - 0.005 = 7.615
∴ The lower boundary = 7.615
∴ The range of b is 7.615 ≤ b < 7.625
To find the minimum value of a - b, use the smallest value of a and the greatest value of b
∵ The minimum of a - b = lower boundary of a - upper boundary of b
∴ The minimum of a - b = 48.95 - 7.625
∴ The minimum of a - b = 41.325
∴ The minimum of a - b is 41.325
there are 946 milliters in a quart there are 2 pints in a quart
how many milliters are in a pint?
Answer:
Answer: There are 473 milliliters in 1 pint. ... 946 ml in 1 quart
Step-by-step explanation:
You earn $35 for washing 7 cars. How much do you earn for washing 4 cars?
You earn $ 8.75 for washing 4 cars.
17
Answer:8.75
Step-by-step explanation:35/4
do you want to make a sodium carbonate solution with a concentration of 2.5%. You have 50 mL of a 1% solution about how many milliliters of a 6% solution should you add
9514 1404 393
Answer:
21 3/7 mL ≈ 21.43 mL
Step-by-step explanation:
Let x represent the amount of 6% solution that should be added. The the total volume of sodium carbonate in the mix is ...
1%(50) +6%(x) = 2.5%(50 +x)
50 +6x = 125 +2.5x . . . . . multiply by 100, eliminate parentheses
3.5x = 75 . . . . . . . . . . . . . subtract 2.5x+50
x = 21 3/7 . . . . . . . . . . . . . divide by 3.5
21 3/7 mL, about 21.43 mL, of 6% solution should be added to make a 2.5% solution.
2/5 - 1/15 show your work
Answer:
0.34
Step-by-step explanation:
2/5 = 0.4
1/15 = 0.06
0.4-0.06=0.34
the graph of the reciprocal parent function , f (x) = 1/x is shifted 8 units downs and 6 units to the left to create the graph of g (x) what function is g (x)
Answer:
Help me with this please
Answer:
g(x)=1/x+6 -8
Step-by-step explanation:
7. In the right triangle below, find the length of the third side.
B
15
10
C
Answer:
If you need to find the hypotenuse, then square the two sides and add them together then square root that answer to get the hypotenuse. If you need to find a side then take the hypotenuse and other side and square them then subtract the side by the hypotenuse and then square root that answer.
Step-by-step explanation:
legs; a b hypotenuse c
a^2 + b^2 = c^2 then square root this answer
c^2 - b^2 = a^2 then square root this answer
c^2 - a^2 = b^2 then square root this answer
Find a 11 in the following geometric sequence
Which situation is an example of opposite quantities combining to make 0?
A gift card had a balance of $20. Then, all $20 on the gift card was spent.
O A swimmer was 6 feet below the surface of the water. Then she descended another 6 feet.
C A container had 21 ounces of liquid. Then, 2.1 ounces of liquid was added to the container.
d The temperature was -5 degrees Fahrenheit. Then, the temperature decreased by 5 degrees.
Answer:
A is the best answer.
Step-by-step explanation:
The gift card starts out with 20 dollars. After it all being spent, you add -20. 20+(-20)=0
Which is a name for the ray? Please help!!
Answer:
CR
Step-by-step explanation:
Answer:
CR
Step-by-step explanation:
It would be ray CR. It starts at point C and the last point along the ray is R.
I hope this helps! :)
A salesperson sold a car for $18,200 and their commission is $700. What percentage of the sale price is their commission?
7 and 1/5 as a percent
a , b, c, or d? right answers only please
Answer:
its B hope it helps lol lol lol
A bunny seller began their business with only 2 bunnies. The seller noticed that the number of bunnies the farm expanding after t days can be modeled by the equation P = 2 ∙ 3^t In this equation, what does 3^3 represent? *
Step-by-step explanation:
A bunny seller began their business with only 2 bunnies. The seller noticed that the number of bunnies the farm expanding after t days can be modeled by the equation
[tex]P=2(3)^t[/tex]
we know that the exponential equation is in the form of
[tex]y=a(b)^x[/tex]
Where 'a' is the initial value
y is the final value
b is the rate factor
x is the time period
P=2(3)^t
[tex]3^3[/tex] represent the value of t is 3
we know that 't' represents the number of days
[tex]3^3[/tex] represent the farm expanding after 3 days
