i need help with this 3n-4=17 show work
Answer:
The value of n = 7
Step-by-step explanation:
=> 3n-4=17
=> 3n = 17+4
=> 3n = 21
=> n = 21/3
=> n = 7
Answer:
n=7
Step-by-step explanation:
1. Solve
3n-4=17
3n-4+4=17+4
3n=21
3n/3=21/3
n=7
2. Check
3x7-4=17
21-4=17
17=17
Correct!
3. Answer
n=7
Leslie has a watering can that holds 3 liters of water. She uses 250 milliliters of water on each of her plants.
How many plants can she water? Enter your answer in the box
Answer:
12
Step-by-step explanation:
Convert the 3 liters into milliliters and then divide it normally or in the fraction way
Use the equation, (1/27)^x=3^(-4x+6), to complete the following problems.
Rewrite the equation using the same base.
Solve for x. Write your answer as a fraction in simplest form.
Please show all work, and refrain from posting links, thank you!
Answer:
Given equation:
[tex]\left(\dfrac{1}{27}\right)^x=3^{(-4x+6)}[/tex]
27 can be written as [tex]3^3[/tex]
Also [tex]\dfrac{1}{a^b}[/tex] can be written as [tex]a^{-b}[/tex]
[tex]\implies \dfrac{1}{27}=\dfrac{1}{3^3}=3^{-3}[/tex]
Therefore, we can rewrite the given equation with base 3:
[tex]\implies (3^{-3})^x=3^{(-4x+6)}[/tex]
To solve, apply the exponent rule [tex](a^b)^c=a^{bc}[/tex]
[tex]\implies 3^{-3 \cdot x}=3^{(-4x+6)}[/tex]
[tex]\implies 3^{(-3x)}=3^{(-4x+6)}[/tex]
[tex]\textsf{If }a^{f(x)}=a^{g(x)}, \textsf{ then } f(x)=g(x)[/tex]
[tex]\implies -3x=-4x+6[/tex]
Add [tex]4x[/tex] to both sides:
[tex]\implies x=6[/tex]
What is the scale factor from square ABC to square DEF
Answer:
the scale factor is 6
scale factor:
length of image ÷ length of original
Here:
24 ÷ 4 = 624 ÷ 4 = 612 ÷ 2 = 6Brainliest if correct
Answer:
[tex]\frac{1}{2}-\frac{1}{6}=\frac{3}{6}-\frac{1}{6 }=\frac{2}{6} =\frac{1}{3}[/tex]
Step-by-step explanation:
To complete the steps:
[tex]\frac{1}{2}-\frac{1}{6}=\frac{3}{6}-\frac{1}{6 }=\frac{2}{6} =\frac{1}{3}[/tex]
I think the question you are answering a question that does not require simplification so ignore the last bit (= 1/3)
Angle θ forms a reference angle that is below the positive -axis (in quadrant IV). What will be the signs on the sine and cosine of angle θ?
Answer: sin is negative, cos is positive
Step-by-step explanation:
Answer:
Step-by-step explanation:
sin0= 0.8
A straight line p through A(-2,1) and B(2,k) the line is perpendicular to a line 3y + 2x =5. Determine the value of k
Answer:
k = 7
Step-by-step explanation:
To solve this, first, you need to find the slope of the line. To do this, you can convert it into point-slope form.
3y = -2x + 5
y = - 2/3x + 5/3
The slope is -2/3, so the perpendicular slope in 3/2
You find the difference between the x - values (2 - -2 = 4), then multiply that by the slope (4 x 3/2 = 6) finally, you add that to the y value of point one.
1 + 6 = 7
The volume of Mikes rectangular lunch box is 240 cubic inches. The lunchbox is 3 inches deep and its length is 2 inches more then its width. What is the width of Mike's lunchbox
Answer:
8 inches
Step-by-step explanation:
You first divide 240 by 3 which is 80
Then you find what number is 2 less than the other number that is you multiplied together you get 80
And we know that 8 × 10 = 80
There for the :-
Width is 8 in
Length is 10 in
Hight is 3 in
The proof is if you multiply all of them you have to get 240
And if you multiply 8, 10, and 3 you get 240
Translate the sentence into an inequality.
The sum of 6 and w is less than -21.
Which property can be used to solve the equation?
5 d = 75
addition property of equality
subtraction property of equality
multiplication property of equality
division property of equality
Answer: Division of Equality
Step-by-step explanation: In this equation, using division, we can find what y is by dividing 5 on both sides. Y equals to 15.
In 2001 Arnold was x years old. Ken is 34 years younger than Arnold. In 2013 Arnold is three times as old as Ken. Write down an equation in x and solve it.
Answer:
x = 54
Step-by-step explanation:
x/3 = x-36
x= 3x-36.3
2x= 36.3
x = 18.3
x = 54
Answer:
(x +12) = 3((x -34) +12)x = 39Step-by-step explanation:
The given age ratio is valid 12 years after the age at which Arnold was x years old. When Arnold was x, Ken was x-34.
(x +12) = 3((x -34) +12) . . . . . the age relation in 2013
__
Solving for x, we have ...
x +12 = 3x -102 +36
78 = 2x . . . . . . . add 66-x
39 = x
In 2001, Arnold was 39 years old.
_____
Additional comment
In 2001, Arnold was 39 and Ken was 5. Ken is 34 years younger.
In 2013, Arnold was 51 and Ken was 17. Arnold was 3 times Ken's age.
A tonne (1000 kg) of soil is to be equally divided
between 7 garden beds. How much soil is placed
in each garden bed? Write your answer in tonnes
rounded to the nearest kilogram.
Answer:
0.143 tonnes
Step-by-step explanation:
1000 / 7 = 142.857143
= 143 kg
= 0.143t
-12 = -3y
How to Solve?
Answer:
y = 4
Step-by-step explanation:
Given:
[tex]-12=-3y[/tex]
Solve:
[tex]\mathrm{Divide\:both\:sides\:by\:}-3[/tex]
[tex]\frac{-3y}{-3}=\frac{-12}{-3}[/tex]
[tex]\mathrm{Simplify}[/tex]
Note: Negative + Negative = positive
y = 4
~lenvy~
Omg please help! NO LINKS NO FILES PLEASE!
Answer: Square is a 17*17. Ok so its 121-25=96
Step-by-step explanation:
96
A field is shaped like the diagram below.
It is a rectangle with semicircles at two ends. There is a running track around the perimeter of the field.
(a)
100 m
64 m
What is the circumference of the track?
Step-by-step explanation:
must be at least 100m, and the rectangle width, also known as twice the circle radius, must be less than or equal to 60m. That would make for a relatively normal-shaped track
The perimeter of the track is 464 m
What is a perimeter?The length around an object is called its perimeter.
Given that, a rectangle with semicircles at two ends. there is a running track around the perimeter of the field.
The dimension of the rectangle are 100 m and 64 m
The distance between the outer an dthe inner track is 10 m,
The diameter of the outer semicircles is 64+10+10 = 84 m
Therefore, is radius = 42 m
The perimeter of the outer semicircle = 2×π×radius
= 2×3.14×42
= 264 m
The length of the two straight lines = 100 + 100 = 200 m
Therefore, total perimeter of the whole track = 200+264 =464 m
Hence, the perimeter of the track is 464 m
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The figure for this question is:
Write (x^2) ^4without exponents
Answer:
[tex]x * x + x * x * x * x = y[/tex]
The formula for finding exponents is multiply the number following the exponent by itself that number of times.
Select all that apply.
Green pencils are priced at $1.28 for 4. Blue pencils are priced at $5.52 for 24. Which of the following statements are true?
The unit rate for blue pencils is $0.28
The unit rate for green pencils is $0.32
The green pencils are priced less per pencil
The blue pencils are priced less per pencil.
Correct Statements:
1) The unit rate for green pencils is $0.32
2) The blue pencils are priced less per pencil.
Step-by-step explanation:
UNIT RATE:Green pencils:
Given that,
4 green pencils = $1.28
Divide 4 to both sides
1 green pencil = $1.28 / 4
1 green pencil = $0.32
Blue pencils:
Given that,
24 blue pencils = $5.52
Divide 24 to both sides
1 blue pencil = $5.52 / 24
1 blue pencil = $0.23
Blue pencil is priced less per pencil when compared to green pencil.
[tex]\rule[225]{225}{2}[/tex]
Kurt drove to his college after summer break
The graph shows the distance he traveled during his drive,
Distance Kurt
Traveled
100
y
(1.5,75)
75+
Use the drop-down menus to complete the statements based on the graph.
Distance (miles)
50+
25+
0
Time (hours)
CLEAR
The labeled point means in
hours, Kurt traveled
miles.
In 1 hour, Kurt traveled
miles.
His distance changed at a unit rate of
miles per hour, so Kurt's speed was
miles per hour.
If Kurt had driven more slowly, the slope of the graph would be
Answer:
1.5 hours; 75 miles50 miles50 miles per hour; 50 miles per hourless/decreased/reduced/smallerStep-by-step explanation:
The labels on the axes of the graph tell you the meaning of the coordinates of a point on the graph. The ordered pair lists the horizontal coordinate first. The horizontal axis is labeled hours, and the vertical axis is labeled miles.
The point (hours, miles) = (1.5, 75) means Kurt drove 75 miles in 1.5 hours.
__
You can find the miles driven in 1 hour by reading the graph at the horizontal coordinate 1 hour. You find that is 50 miles. The 1 represents 1 unit, so the "unit rate" is 50 miles in 1 hour. Such a rate is also called a "speed" of 50 miles per hour.
If Kurt had driven fewer miles in an hour, the points on the graph would all have smaller vertical coordinates. The unit rate (slope) would be less than 50 miles per hour.
look at the screenshot
Answer:
x = 5
y = 2
Step-by-step explanation:
multiply by -2 the second equation and add the first equation to eliminate "x"
[tex]4x+5y=30\\-4x-10y=-40[/tex]
_______________
[tex]-5y=-10\\y=\frac{-10}{-5} =2[/tex]
To find "x", substitute the value of "y" in any equation. I do it in the first
[tex]4x+5(2)=30[/tex]
[tex]4x+10=30[/tex]
[tex]4x=30-10\\x=20/4=5[/tex]
Hope this helps
Answer:
i got you
Step-by-step explanation:
first you will make the easiest equation into y=mx+b
2x=5y=20
subtract 2x from it self and 20, you will eliminate the 5 but keep the y then you will get y=2x+20
then you will substitute it into the y in the other equation 4x+5(2x+20)=30
after doin that you will multiply 5 by both the number in the parenthesis
4x+15x+100=30 add like terms 4x+15x =
19x+100=30 subtract 100 fromm itself and 30 you will get -70
-70 divided by 19x then you will get your answer
Mrs.smith has 5 times many markers as colored pencils. The total number of markers and colored pencils is 54. How many markers does Mrs.smith have
Answer:
270 Markers
Step-by-step explanation:
5 x 54 = 270
(sorry if I'm wrong)
12, 17, 22, ...
Find the 36th term.
Answer:
187
Step-by-step explanation:
a=12,d=17-12=5
nth term =a+(n-1)d
36th term=12+(36-1)5
=12+(35×5)
12+175
36th term=187
The value of 36th term is 187.
What is arithmetic progression?An orderly sequence of numbers known as arithmetic progression (AP) has a constant difference between any two consecutive numbers. Additionally known as arithmetic sequence.
abbreviated as AP, a mathematical sequence in which the difference between two consecutive terms is always constant.
Given series
12, 17, 22,.....
since the series is in AP because the difference between any two consecutive numbers is equal,
17 - 12 = 5 and 22 - 17 = 5
for nth term of AP
aₙ = a₁ + (n - 1)d
where a₁ = 12, n = 36, d =5
a₃₆ = 12 + (36 - 1)5
a₃₆ = 12 + 35 × 5
a₃₆ = 12 + 175
a₃₆ = 187
Hence 187 is the 36th term.
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The value of a new truck decreases exponentially at a rate of 4.8% per year. If the purchase price of the new cars $42,000, how much is the car work by the time it is paid off by the time it is paid off 5 years later?
The worth of the car after it is paid off 5 years later given the rate of exponential depreciation is $32,842.34.
What is the worth of the car?When the car declines in value, it means that the car is depreciating. The formula that can be used to determine the value of the car with the depreciationn rate is:
FV = P (1 - r)^n
FV = Future value P = Present value R = rate of decline N = number of years$42,000 x (1 - 0.048)^5 = $32,842.34
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help ! 50 points Savanah is shopping for planters for her new plants. Which measurement should she use to determine how much soil each planter will hold?
A. Area
B. Depth
C. Perimeter
D. Volume
25 pts
A rectangular storage box is 12 in.
wide, 15 in. long, and 9 in. high. How
many square inches of colored paper
are needed to cover the surface of
the box?
Answer:
1,620
Step-by-step explanation:
L x W x H
L = 15
W = 12
H = 9
15 x 12 = 180
180 x 9 = 1620
Which of the following could be given lengths of sides of a triangle? Check all that apply.
When given three side lengths:
--> the three sides lengths that can form a triangle are the ones where
the sum of two side lengths of a triangle is always greater than the
third side
Thus the choice that fits the requirement is choice (C).
Hope that helps!
Lily has a mask collection. She keeps some in a display case and the rest on the wall. 365 of her masks are on the wall, and 27% of her masks are in the display case. What is the total number of masks in Lily's collection?
Step-by-step explanation:
this answer is that correct
brain lest
If 365 of her masks are on the wall, and 27% of her masks are in the display case. Then 467 marks are the total number of masks in Lily's collection
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
Given,
Lily keeps masks in a display case and the rest on the wall.
365 of her masks are on the wall.
27% of her masks are in the display case
We need to find what is 27% of 365 to solve this problem
27/100×365=0.27×365
=98.55
Now we need to find the total number of masks in Lily's collection
365+98.55
463.55
467
Hence, 467 are total number of masks in Lily's collection.
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Find the common factor of all the terms of the polynomial 16x2 - 14x. O A. 2x² O B. 44² O c. 2x O D. 4x
Answer:
c. 2x.
Step-by-step explanation:
16x2 - 14x
Common factor of 16 and 14 = 2'
for x2 and x it is x,
Answer: 2x.
what is Seven less than a number is the same as 2 more than twice the number as a equation?
i need help on this and a few more i have been busy lately
Answer:
ok so we have to make it so we can get rid of one of the varibles by adding or subtracting
so lets multiply the first one by 4
120x+16y=4160
minus the second one so
108x=2160
divide by 108
x=20
then we just plug in
12(20)+16y=2000
240+16y=2000
-240
16y=1760
divide by 16
y=110
(20,110)
Hope This Helps!!!
a company’s profit of 18000 is shared by 2 directors and 24 employees 1-3 of the profit is shared equally by 2 directors of the company
Using proportions, it is found that:
Each director gets 6000.Each employee gets 500.What is a proportion?A proportion is a fraction of a total amount.
In this problem, the directors share one-third of the profit, hence:
18000/3 = 6000
6000/2 = 3000.
That is, each director gets 6000.
The remaining 18000 - 6000 = 12000 will be shared equally by the 24 employees, hence:
12000/24 = 500
Each employee gets 500.
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