Answer:
n = 3p
hope this works
A student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly? (round to the nearest whole number)
(Please answer with explination)
Answer:
Required Answer:-A student earned 80% in a math test which has 20 problems.It means The student answers 80% of 20 problems correctly[tex]\longrightarrow[/tex][tex]\sf 80\%\:of\:20 [/tex]
[tex]\longrightarrow[/tex][tex]\sf {\dfrac{80}{{\cancel{100}}}}\times {\cancel{20}} [/tex]
[tex]\longrightarrow[/tex][tex]\sf {\dfrac {80}{5}}[/tex]
[tex]\longrightarrow[/tex][tex]\sf 16 [/tex]
[tex]\therefore[/tex] The student answered 16 problems correctly
3. Is the line through points P(0, -9) and Q(2, -8) perpendicular to the line through points R(1,4) and S(3, 3)?
Explain.
Answer:
no
Step-by-step explanation:
1. to make up the equations of lines PQ and RS:
(PQ) [tex]\frac{x-0}{2} =\frac{y+9}{1}; \ \frac{x}{2}=\frac{y+9}{1};[/tex]
(RS) [tex]\frac{x-1}{-2}=\frac{y-4}{1}; \ \frac{x-1}{-2}=\frac{y-4}{1};[/tex]
2. to write the pointed verctors of PQ and RS:
for PQ it is p=(2;1); for RS it is r=(-2;1).
3. according to the pointed vectors it is clear, the given lines are not perpendicular [2*(-2)+1*1≠0].
Which letter has rotational symmetry?
A. I
B. J
C. K
D. L
Answer:
K
Step-by-step explanation:
im guessing its K if not then its none!
If 25 is added to 5 times a certain number, the result is 7 times the number minus 35. Find the number.
Step-by-step explanation:
Required Answer:-Let the certain number =x
According to the question
[tex]{:}\longrightarrow[/tex][tex]\sf 5x+25=7x-35 [/tex]
Simplify[tex]{:}\longrightarrow[/tex][tex]\sf 7x-35=5x+25 [/tex]
[tex]{:}\longrightarrow[/tex][tex]\sf 7x-5x=25+35 [/tex]
[tex]{:}\longrightarrow[/tex][tex]\sf 2x=60 [/tex]
[tex]{:}\longrightarrow[/tex][tex]\sf x={\dfrac {60}{2}}[/tex]
[tex]{:}\longrightarrow[/tex][tex]\sf x=30 [/tex]
[tex]\therefore[/tex]The number is 30.
a solar panel is in the shape of a rhombus with sides 2.4f each and a height of 1.8ft. compute the area of the solar panel.
Answer:
4.32ft^2
Step-by-step explanation:
A of a rhombus = l x w
=2.4x1.8
=4.32
∴ the area of the solar panel is 4.32ft^2
75/6 hasta que el residuo sea cero
75/6 no puede tener un resto de cero ya que 6 solo entra en 7 12 veces con el resto de 3
(-73d4)(4cd3)
answer
192cd2 is your answer the end 2 should be squared sorry
Answer:
-292d^7c
Step-by-step explanation:
given the grph of the function F(x) below, what happens to F(x) when x is a negative number with a large absolute value?
Answer:
F(x) is a large positive value
Step-by-step explanation:
If it is a negative number with a large absolute value say |-250| it would become positive 250 so f(x) would also be a large positive number
Choose the behaviors that are IF YOU HELP ME IN LESS THATN 2MINS I WILL GIVE YOU BRAINLY MASTER THING!!!exhibited by someone who is using critical thinking.
Questions ideas and beliefs
Assesses information gathered
Gathers relevant information
Tests conclusions against reasonable criteria
Thinks along a narrow track
Jumps to conclusions
Answer: what do you need
Step-by-step explanation:
PLZ HELP ME I WILL MARK BRAINLIEST!!!
Answer:
i just kno that D is 0
Step-by-step explanation:
-7 +7=0
Question down here
Look(+o+)
Answer:
3[tex]\frac{3}{4}[/tex] or number 3
Step-by-step explanation:
Please help with 5 :( I’ll mark u!
Answer:
m is slope, b is y=interecept and x and y is the coordinates
Step-by-step explanation:
1. Determine the number of combinations of the letters of the word EXAMINATION given that
four letters are taken at a time.
(5marks)
Answer:
210
Step-by-step explanation:
10 choose 4. 10 letters choose 4. Using the combination formula. C(n,r)
Graph each function and determine the y-intercept, then use the graph to determine the approximate value of the given expression. y = 3^x, 3^1.2 a. 1; 3.7 c. 0; 3.9 b. 1; 2.9 d. 0; 3.5
Answer:
The right answer is A
Step-by-step explanation:
The value of the exponential equation is y = 3ˣ and the graph is plotted
What are the laws of exponents?When you raise a quotient to a power you raise both the numerator and the denominator to the power. When you raise a number to a zero power you'll always get 1. Negative exponents are the reciprocals of the positive exponents.
The different Laws of exponents are:
mᵃ×mᵇ = mᵃ⁺ᵇ
mᵃ / mᵇ = mᵃ⁻ᵇ
( mᵃ )ᵇ = mᵃᵇ
mᵃ / nᵃ = ( m / n )ᵃ
m⁰ = 1
m⁻ᵃ = ( 1 / mᵃ )
Given data ,
Let the exponential equation be represented as A
Now , the value of A is
y = 3ˣ be equation (1)
Now , the y intercept of the equation is when x = 0
So , when x = 0
y = 3⁰
y = 1
Now , when y₁ = 3^1.2
The value of y₁ = 3.7
Therefore , the y intercept of the equation is 1 and the graph is plotted
Hence , the exponential equation is y = 3ˣ
To learn more about exponents click :
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If shoes were 15% off and you save nine dollars what was the original price
Divide amount saved by percentage:
9/0.15 = 60
The original price was $60
Answer:$60
Step-by-step explanation:
9/15=0.6
0.6=1%
0.6*10=$60
You walk 1/5 miles to a clothing store. Than you walk another 1/4 miles to a shoe store. How many miles have you walked in all?
Answer: She has walked 9/20 miles in total
Step-by-step explanation:
1/5*4=4/20
1/4*5=5/20
4/20+5/20=9/20 miles
A computer monitor is packaged in a cube-shaped box with an inside edge length of 2.5 feet.What is the volume of the box?
Answer:
odlxksms
Step-by-step explanation:
skzkxjkdidok
just trying to get this done to get some sleep, thank you!!
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation. Using this equation, find the maximum height reached by the rocket, to the nearest tenth of a foot.
y=-16x^2+275x+127
Answer:
1308.6 feetStep-by-step explanation:
Given is the quadratic equation
y= -16x^2 + 275x + 127It has the maximum height at its vertex, x-coordinate of which is calculated by the formula:
x = -b/2ax = -275/2(-16) = 8.6 rounded to the nearest tenthsCalculating the highest point:
y = -16(8.6)^2 + 275(8.6) + 127 = 1308.6 feet rounded to the nearest tenthsjust occupying space up hear !
and the question is
simplify;
2+3√2!
James, Priya, and Siobhan work in a grocery store. James makes $9.00 per hour. Priya makes 40% more than James, and Siobhan makes 5% less than Priya. How much does Siobhan make per hour?
Siobhan makes $ per hour.
Answer:
$7.98 per hour
Step-by-step explanation:
Carlos can run 5 miles in 45 minutes, Kelly can run 10 miles in 80 minutes, and Mick can run 30 miles in 170 minutes
Answer:
Mick can run farther in less time if that's the question
Step-by-step explanation:
Mick's speed is faster.
What is speed?Speed is the ratio of distance and time.
It shows how fast an object is moving at a given time.
We have,
Carlos can run 5 miles in 45 minutes.
45 minutes = 45/60 = 0.75 hours
Speed.
= 5/0.75
= 6.66 miles per hour.
Kelly can run 10 miles in 80 minutes.
80 minutes = 1.33 hours
Speed.
= 10/1.33
= 7.5 miles per hour.
Mick can run 30 miles in 170 minutes
170 minutes = 2.8 hours
Speed.
= 30/2.8
= 10.7 miles per hour
Thus,
Mick's speed is faster.
Learn more about speed here:
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Which point is located at (Negative 0.5, 0.75)? On a coordinate plane, point B is 0.75 units to the right and 0.5 units down. Point G is 0.75 units to the right and 0.5 units up. Point M is 0.5 units to the left and 0.75 units down. Point Z is 0.5 units to the left and 0.75 units up. point B point G point M point Z hurry
Answer:
It’s b
Step-by-step explanation:
Which is point g
Answer:
Z
Step-by-step explanation:
A. ECONOMICS A sports team sells about
100 coupon books for $30 each during their annual
fundraiser. They estimate that for each $0.50
decrease in the price, they will sell about 10 more
coupon books. How much should they charge for
each book in order to maximize the income from
their sales?
A. $29.50
B. $20.00
C. $17.50
D. $15.00
Answer:C
Step-by-step explanation:
What is 9x10= xxxxxxxx
Answer:
9x10 = 90
Step-by-step explanation:
10, 10, 10, 10, 10, 10,10, 10, 10
express the following as a ratio in its simplest from
9 to 16
10 to 12
20 to 16
24 to 36
9:16 -> 3:8
How?
Divide each side by 2 (the GCF).
10:12 -> 5:6
How?
Divide each side by 2 (the GCF).
20:16 -> 5:4
How?
Divide each side by 4 (the GCF).
24:36 -> 2:3
How?
Divide each side by 12 (the GCF).
Answer:
9: 16 for 9 to 16; is the simplest form for 9/16 cuz nothing can go into 9 and 16
5 : 6 for 10 to 12; cuz 10 divided by 2 is 5 and 12 divided by 2 is 6!
5: 4 for 20 to 16; cuz 20 divded by 4 is 5 and 16 divded by 4 is 4
lastly is 2:3 for 24 to 36; why? well it's ciz 24 divided by 12 is 2 and 36 divedde by 12 is 3
hope this helps and pls don't delate my answer!
the line that passes through (−2,3) and (0,8)
Answer:
y=5/2x+8
Step-by-step explanation:
slope: (y2-y1)/(x2-x1); (8-3)/(0-(-2))= 5/2
y-intercept is 8
Replacing the maximum value of the data set with a smaller number will also affect the mean. A:always B:sometimes C:never
Answer:
B: sometimes
Step-by-step explanation:
Let's look at two examples.
Example A.
2, 3, 5: mean is 3
Replace 5 with 1. Now you have 1, 2, 3: mean is 2.
In this case, it affected the mean.
Example B.
2, 3, 5: mean is 3
Replace 5 with 4. Now you have 2, 3, 4: mean is 3.
In this case, it did not affect the mean.
As you can see, replacing the maximum value of the data set with a smaller number may or may not change the mean.
Answer: B: sometimes
How many 2 letter permutations can be made from the word "letter"
Answer:
Brainliest for Brainliest
Step-by-step explanation:
You sell 200 laptops per month at $499 per laptop. You sell 350 smartphones per month at $399 per phone. Which
generates more sales in dollars for you?
a) Laptops
b) Smartphones
Answer:
B) Smartphones
Step-by-step explanation:
In order to answer this question we need to find the total revenue for the laptops and smartphones.
Let's start with the laptops.
Given:
200 laptops/month$499 per laptopTo find the total revenue of all these laptops we need to multiply 200 by 499.
[tex](200) *(499) = 99,800[/tex]
Therefore, the total revenue of the laptops alone is $99,800.
Now, let's do the smartphones.
Given:
350 smartphones/month$399 per smartphoneTo find the total revenue of all these smartphones we need to multiply 350 by 399.
[tex](350) * (399) = 139,650[/tex]
Therefore, the total revenue of the smartphones alone is $139,650.
Comparing the two revenues we see that the smartphones generate more sales in dollars.
Hope this helps!
- Kay