Answers
Answer:
D
Step-by-step explanation:
We can cross off a because it is impossible to have negative of a material.
Now lets get into the System of equations. First subtract both of them to have one common variable(we will find the second one later)
- P + N = 134
- P + 3.1N = 241.10
2.1N = 107.1
107.1/2.1 = 51
Now we know that n = 51
lets substitute,
P + 51 = 134
P = 83
Lets check
83 + 51 = 134
Great! The asnwer is D
Answer:
D.
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Related Questions
Can someone please solve 14 and 15
Answers
Find the scale factor of 1 inch = 9 feet
Answers
Answer:
9 ft = 9 × 12 = 108 in
ratio is 1:108
Step-by-step explanation:
The number of writing instruments in some teachers' desks is displayed in the dot plot. Which is greater the mean or the median? Explain your reasoning using the shape of the distribution.
please help..
30 points
Answers
The median is greater than the mean. From the shape of the distribution, the data set has more values on the left, so we can say it is skewed to the left. In every distribution that is skewed to the left, the median is always greater than the mean.
In the given chart we can deduce the following;
number of instruments that is 5 = 1number of instruments that is 6 = 1number of instruments that is 7 = 1number of instruments that is 8 = 1number of instruments that is 9 = 3number of instruments that is 10 = 4number of instruments that is 11 = 2number of instruments that is 12 = 1These numbers can be listed as follows;
5, 6, 7, 8, 9, 9, 9, 10, 10, 10, 10, 11, 11, 12
The median of these numbers is calculated as;
[tex]median = \frac{9+ 10}{2} = 9.5[/tex]
The mean of these numbers is calculated as;
[tex]mean = \frac{5+6+7+8+9+9+9+10+10+10+10+11+11+12}{14} = 9.07[/tex]
Thus, the median is greater than the mean.
Also, from the shape of the distribution, the data set has more values on the left, so we can say it is skewed to the left. In every distribution that is skewed to the left, the median is always greater than the mean. But if the distribution is skewed to the right, the mean is always greater than the median.
Learn more here: https://brainly.com/question/24055593
The temperature outside is dropping at a rate of 1.5 degrees each hour . It last is raining and the weather station predicts a changeover from rain to sleet when the temperature reaches 32*F or below . Currently the temperature is 53*F and the time is 8:30am when do you predict the changeover to sleet will occur?
Please help me
Answers
The changeover to sleet will happen at 10:30pm
The changeover to sleet is predicted to occur at 10:30 pm.
Given,
The temperature outside is dropping at a rate of 1.5 degrees each hour.
The changeover from rain to sleet is when the temperature reaches 32*F or below.
Currently, the temperature is 53*F and the time is 8:30 am.
We need to find at what time can we predict the changeover to sleet will occur.
What is temperature?Temperature is the measure of the hotness or coldness of an object with reference to some standard value.
We have,
Current temperature = 53*F at 8:30 am.
Rate of the drop of temperature = 1.5 degrees per hour.
Find the number of hours needed to drop from 53*F to 32*F.
53*F - 32*F = 21*F
We need to find how many hours required to drop to 21*F
1 hour = 1.5 degrees
Multiplying 21/1.5 on both sides.
21/1.5 x 1 hour = 21/1.5 x 1.5 degrees.
14 hours = 21 degrees
The number of hours required to drop from 53*F to 32*F is 14 hours.
8:30 am + 14 hours = 10:30 pm
Thus the changeover to sleet is predicted to occur at 10:30 pm.
Learn more about differences in temperature here:
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The y-intercept of 3y − 8x = 18 is (0, 6).
True or False
Answers
Answer:
3y = 8x + 18
for y-intercept let x = 0
3y = 8(0) + 18
3y = 18
y = 6
y-intercept is (0, 6)
THIS IS TRUE
19 + 1.5(10m – 8) = 127
Answers
[tex]19+1,5(10m-8)=127\\\\19+15m-12=127\\\\15m+7=127 \ \ /-7\\\\15m=120 \ \ /:15\\\\\huge\boxed{m=8}[/tex]
Answer:
[tex]m=8[/tex]
Step-by-step explanation:
[tex]19 + 1.5(10m-8) = 127[/tex]
Multiply both sides by 10
[tex]190+15(10m-8)=1270[/tex]
Subtract 190 from both sides
[tex]15(10m-8)=1080[/tex]
Divide both sides by 15
[tex]10m-8=72[/tex]
Add 8 to both sides
[tex]10m=80[/tex]
Simplify
[tex]m=8[/tex]
Amanda's earnings vary directly with the number of hours she works. Suppose that she worked 9 hours yesterday and earned 117. how much will she earn today if she works seven hours
Answers
Answer:
91
Step-by-step explanation:
117/9 is 13 which means she earns 13 for each hour and for 7 hours it will be 13 multiply by 7 and that gives 91
Why is it important for the government to know the population growth rate in the country
Answers
Answer:
Governments, need to know how many inhabitants currently live in the country and how many there will be in the future. From this they can plan and make better decisions regarding the construction of schools, hospitals, roads, and more.
Find the distance between the given points: (2, -2) and (-4, 7)
Answers
Answer:
[tex]3\sqrt{13}[/tex]
Step-by-step explanation:
Hi there!
We want to find the distance between the points (2, -2) and (-4, 7).
To do that, we can use the distance formula.
The distance formula is given as [tex]\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex], where [tex](x_1, y_1)[/tex] and [tex](x_2, y_2)[/tex] are points
We have everything needed to find the distance, but let's label the values of the points to avoid any confusion
[tex]x_1=2\\y_1=-2\\x_2=-4\\y_2=7[/tex]
Now substitute those values into the formula and solve
[tex]\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
[tex]\sqrt{(-4-2)^2+(7--2)^2}[/tex]
Simplify
[tex]\sqrt{(-4-2)^2+(7+2)^2}[/tex]
[tex]\sqrt{(-6)^2+(9)^2}[/tex]
Square the numbers under the radical
[tex]\sqrt{36+81}[/tex]
Add the numbers under the radical together
[tex]\sqrt{117}[/tex]
Simplify the square root
[tex]3\sqrt{13}[/tex]
Hope this helps!
the following ratios form a proportion 6/8 * 10/12 true or false
Answers
Answer:
false
Step-by-step explanation:
10/12 is 5/6 and 6/8 is 12/16 that's the closest whole number proportionality also, it would both have a difference of 2
BRAINLIEST!! PLZ HELP
Given f (x) = x2 – 4 and g(x) = x + 3 then g (f (2)) =
Answers
Answer:
g (f(2)) = 3
Step-by-step explanation:
f (x) = x2 – 4
g(x) = x + 3
g (f (2)) =?
Find f(2) first
f (x) = x2 – 4
f (2) = 2^2- 4
= 0
Now put this in your g(x)
g(x) = x + 3
g (f(2)) = (f(2)) + 3
And u alredy know f(2) =0, so just put it in
g (f(2)) = 0 + 3
=3
HELP ME I ONLY HAVE 15 MINUTES
Answers
... 30, 50, 100
... 180
... 50
Evaluate the expression when a=
[tex] \frac{11 }{15} [/tex]
and c=
[tex] \frac{3 }{10} [/tex]
-2c+a
write your answer in simplest form
Answers
Answer:
[tex]\frac{2}{15}[/tex]
Step-by-step explanation:
Substitute the values for a and c into the expression
- 2c + a
= - 2× [tex]\frac{3}{10}[/tex] + [tex]\frac{11}{15}[/tex]
= - [tex]\frac{3}{5}[/tex] + [tex]\frac{11}{15}[/tex]
= - [tex]\frac{3(3)}{5(3)}[/tex] + [tex]\frac{11}{15}[/tex]
= - [tex]\frac{9}{15}[/tex] + [tex]\frac{11}{15}[/tex]
= [tex]\frac{2}{15}[/tex]
Help! Perimeter and Area please.
Answers
Create an equivalent expression using the drop downs below 4(32 – 4).
Answers
Answer:
7x
Step-by-step explanation:
It equals 28 just like the problem with parentheses, 7x .
( x - 2) ( x + 2 ) ( x bình + 4 )- ( x bình - 3 ) ( x bình + 3 )
Answers
Answer:
( x - 2) ( x + 2 ) ( x² + 4 ) - ( x² - 3 ) ( x² + 3 )
(x² – 4) (x²+4) – ( x⁴ – 9 )
(x⁴ – 16 ) – ( x⁴ – 9)
(x⁴ – 16 ) + ( – x⁴ + 9) = – 7
I hope I helped you^_^
Values that represent a linear function are shown in the table below.
x y
−5 −8
−7 −16
−9 −24
−11 −32
−13 −40
What is the slope of this linear function?
A
4
B
14
C
−18
D
−8
Answers
Answer:
A.4
explanation:
you can find the slope using this formula
m=(y2-y1)/(x2-x1)
(-16--8)/(-7--5)= 4
BRAINLIEST
Plan A:
40 + 0.45 a minute (m)
Plan B:
70 + 0.35 a minute (m)
Suppose a friend asks you which of the two plans is less expensive. How would you respond? (Answer specificly please)
Answers
Answer: I think Plan A is the cheapest
Step-by-step explanation:
I would say this because all it is is a 10 cent incline and 30 dollars cheaper, meaning it would take almost 15 weeks to earn 30 dollars on the plan a, while plan b will already be at like 100 Dollars.
I am sorry if I didn't completely answer your question but I did the best to my ability
Thanks!
An architect is hanging a large sign from a triangular shaped
ceiling and plans to hang the sign at a point located at the
centroid of the triangle.
A diagram of the triangular ceiling shown by A ABD was used
to determine the point on the ceiling where the sign will be hung,
which will be at point G. The length of one median of the
triangular ceiling, BE, is 45 feet.
What is the distance from one corner of the ceiling, at point B, to
the hanging point of the sign?
Enter your answer in the box.
Answers
Answer:
30 feet
Step-by-step explanation:
I just took the quiz :)
Find the area and perimeter.
Answers
Answer:
Step-by-step explanation:
Perimeter of triangle = 4x - 3 + x + 9 + 8
= 4x + x - 3 + 9 + 8
= 5x + 14
Area = [tex]\frac{1}{2}*base *height[/tex]
[tex]= \dfrac{1}{2}*8*3x\\\\= 4 * 3x\\\\= 12x[/tex]
solve the equation. determine whether or not the equation has one solution, no solution, or infinitely many solutions. 6c+3=c-12
Answers
The sum of 48 and itself,it's half and half of the half is added to 18
Answers
Express the repeating decimal 2.1 repeating as a fraction.
Answers
Answer:
2 1/9
Step-by-step explanation:
Answer:
2.1×10=21
Step-by-step explanation:
.°.2,1/10
=2.1
Simplify:
(-2x^3y^2)^5
Answers
Answer:
power rules attached
Step-by-step explanation:
(-2x³y²)⁵ = (-2)⁵.(x³)⁵.(y²)⁵
= -32x¹⁵ .y¹⁰
Do answer 20 and 24. URGENT!!!
Answers
Answer:
See the image for solution.
Brainlist please!!
in the figure below the measure of <1=5x°, the measure of <2=y°, and the measure of <3=85°. Find the value of each variable.
Answers
Answer:
180-85=95
180-95=85
5x=85
x=17
For given figure, x = 17° and y = 95°
What is an equation?"It is a mathematical statement which consists of equal symbol between two mathematical expressions."
For given question,
We have been given ∠1 = 5x°, the measure of ∠2 = y°, and the measure of ∠3 = 85°
we know, the sum of all the angles on one side of a straight line is always 180°
So, we get two equations.
∠1 + ∠2 = 180° .....................(i)
and ∠2 + ∠3 = 180° .....................(ii)
First we solve equation (ii) to find the value of ∠2
⇒ ∠2 + ∠3 = 180°
⇒ y + 85° = 180°
⇒ y = 95°
Now substitute this value of ∠2 in equation (i)
⇒ ∠1 + ∠2 = 180°
⇒ 5x° + y° = 180°
⇒ 5x° + 95° = 180°
⇒ 5x° = 85°
⇒ x = 17°
Therefore, x = 17° and y = 95°
Learn more about equation here:
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Hannah but 3.4 pounds of apples she paid $.89 per pound how much did Hana pay for apples
Answers
Answer:
3.026 $
Step-by-step explanation:
3.4 × 0.89 = 3.026 $
2. Represent √7 on a number line.
Answers
H. Tito started the week with a $20 in his lunch
account. If meals costs $2.30 each, write a linear
equation modeling Tito's account value. Can Tito
afford 9 meals?
Answers
Answer:
See Below
Step-by-step explanation:
Total money = $20
Cost of one time meal = $2.30
Linear equation = $20 - $2.3(x) Where x is the number of days
No, he can't afford 9 meals because 2.3 × 9 = 20.7. Which is out of his account's money
32 can go into 96 how many times
Answers
Answer:
3 times osndneif8dhwlcodk
Answer:
3 times
Step-by-step explanation:
96/32=3
32+32=64+32=96
