Answer:n = 20
Step-by-step explanatio
0.4 * n = 8
n = 8 / 0.4
n = 20
The equation represents 0.4n = 8 and the solution will be n = 20.
What is a number system?The number system is a way to represent or express numbers.
A decimal number is a very common number that we use frequently.
Any of the multiple sets of symbols and the guidelines for utilizing them to represent numbers are included in the Number System.
As per the given,
Product of 0.4 and n is 8.
0.4n = 8
n = 8/0.4
n = 80/4 = 20
Hence "The answer will be n = 20 because the equation says that 0.4n = 8".
For more about the number system,
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The volume of a cube is 751cm.3
Work out the length of its side rounded to 1 DP.
Answer:
9.1 cm
Step-by-step explanation:
v = s^3
751 = s^3
Take the cube root of both sides
9.0896392166 = s
Rounded
s = 9.1
13 = 1/6y +2x plz help
Answer:
in standard form - y+12x=78
in slope intercept form - y=-12x+78
Step-by-step explanation:
standard form
13=1/6y+2x
multiply both sides by 6
78=y+12x
y+12x=78
slope intercept
13=1/6y+2x
subtract 1/6y from both sides
13-1/6y=2x
subtract 13 from both sides
-1/6y=2x-13
change the signs on both sides of the equation
1/6y=-2x+13
divide both sides by 1/6
y=-12x+78
What is the number that is 25 units away from -12?
Answer:
13
Step-by-step explanation:
25 - 12 = 13
given g(x)=1/2x+7 find g^-1(x)
James can read 520 words in 2 minutes and Luke can read 960 in 5 at what rates are james and Luke able to read?
The Drawing below represents a scale drawing of a room, when 1 inch = 16 feet
what is the approximate area of the store in square feet
What equation is graphed in this figure?
A: y−3=32(x+1)
B: y+1=−23(x−3)
C: y−4=−23(x+2)
D: y+2=−32(x−2)
John spent half of his weekly allowance playing mini-golf. To earn more money, his parents let him wash the car for $10. What is his weekly allowance if he had $15 after washing the car?.
Answer:
5
Step-by-step explanation:
If he had 15 dollars, he had 5 dollars for mini golf.
15-10=5
I dont think its correct, but yeah.
i need help fr!! ignore the writing lol
Answer:
-40
Step-by-step explanation:
Inputs are the x values and outputs are the y values. To find the output of a function, substitute the chosen value for x.
For instance, when the input is 5:
[tex]-7(5)-5\\-35-5\\-40[/tex]
Then, the output is -40.
the table below shows how much joesph has saved the first two weeks
Answer:
wheres the table
Step-by-step explanation:
which is lower:-500 or-1000 feet?
Answer:
-1000
Step-by-step explanation:
if you look on the number line
Answer:
-1000 feet
Step-by-step explanation:
-1000 feet is lower than -500 since both numbers are negative and -500 is close to 0 than -1000
Ajuda ai porfavo porfavo
Answer:
l
Step-by-step explanation:
l
(7x^{5} -4x^{4} +2x^{2} -3)-(6x^{4} +9x^{3} -7x^{2} +12)
Marla filled up her car's gas tank and then went on a trip. After she drove 329 miles, she filled her tank with 14 gallons of gas. If she drove the same number of miles on each gallon of gas, how many miles per gallon did she drive?
Answer:
23 1/2 miles per gallon
Step-by-step explanation:
We start with dividing 329 miles with 14 gallons because it asks to find the number of miles on each gallon of gas -
Miles
----------------------------- =
Each gallon of gas
329 ÷ 14 = 23 1/2 miles per gallon
if 2/5 of pizza costs $1.00 how much will the whole pizza cost
Answer:
2/5
Step-by-step explanation:
GEOMETRY For what values of r will the area of the shaded region be greater than or equal to 12 square units? Write your answer as an
inequality
Answer:
Step-by-step explanation:
Find the area of the shaded region in terms of r.
1. The area of the circle with radius r is
2. The area of the square with diagonal 2r is
3. The area of the shaded region is the difference
Since the area of the shaded region must be greater or equal to then
This inequality is solved only in positive numbers, because r cannot be negative.
A student averaged 45 miles per hour on a trip. What was the students speed in feet per second? with solutions please
Answer:
[tex]66 \: ft/sec[/tex]
Step-by-step explanation:
[tex] = \frac{45 \: mi}{hr} \times \frac{5280 \: ft}{1 \: mi} \times \frac{1 \: hr}{3600 \: s} [/tex]
[tex] = 45 \frac{5280}{1} \times \frac{1}{3600}ft/sec \\ [/tex]
[tex] =66 \: ft/sec[/tex]
Instructions: Find tire slope between the two points given. Then, use the slope and one of the points to write the equation of the line in
Slope-Intercept forn. State the slope and y-intercept.
(0, -3) and (1, -1)
Equation:
Slope:
y-Intercept:
Answer:
Equation: y = 2x — 3
Slope: 2
Y-intercept: —3
Step-by-step explanation:
m=∆y/∆x
= —3—(—1)/0—1
= —2/—1
= 2
We Know: y - y0 = m (x—x0)
y — (—3) = 2 (x — 0)
y + 3 = 2x
y = 2x — 3
So
Equation: y = 2x — 3
Slope: 2
Y-intercept: —3
3. Consider the iterative rules you wrote in Problem 2. (a) Explain why the rules are functions. (b) Your friend says that because the rules are functions, they can be graphed and must have y-intercepts. How would you respond to your friend’s comment? (c) Your friend uses your rules to determine the outputs when the inputs are 18.5. Explain why her outputs are meaningless in this situation. What would you tell her about the inputs she can use? Answer:
The inputs which are required mention below in descriptive.
What is Function?The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x. Mapping or transformation is used to denote a function in math.
(a) The rules are functions because each input has only one output. You can test this out, it's true.
(b) So we did have to find the "y-intercept" earlier. But you have to look at the domain. There won't be any amount paid on Week 0, payment starts at Week 1. So you would have to respond that yes, they can be graphed, but there's no y-intercept; the graph starts at week 1. Additionally, there are only data points at the integer values of x. Look at part c.
(c) The outputs are meaningless because you're counting the time by weeks. There won't be any amount paid in the middle of the week, so she can only use integer inputs.
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This is the link
......................
Answer:
-1/2 would be your answer :)
Answer:
The answer is 2
Step-by-step explanation:
the answer would be 2 because the slope moved from (-2,0), to (0, 2). So it moved 2 spaces/grid places up.
Would you rather receive $10,000 a day for 31 days or a penny that doubles in value every day for 31 days?
How much money would you have at the end of 31 days if you chose the $10,000 per day?
How much money would you have at the end of 31 days if you chose to double the penny every day?
How much would you have at the end of 15 days if you chose to double the penny every day?
Someone pls help me
This shows how much you would make per day for both choices.
Total earned in 31 days for $10,000 per day: $310,000
Explanation
$10,000 every day in 31 days.
Total earned in 31 days for penny: 21,474,836.47
Explanation:
Day 1: $0.01
Day 2: $0.02
Day 3: $0.04
Day 4: $0.08
Day 5: $0.16
Day 6: $0.32
Day 7: $0.64
Day 8: $1.28
Day 9: $2.56
Day 10: $5.12
Day 11: $10.24
Day 12: $20.48
Day 13: $40.96
Day 14: $81.92
Day 15: $163.84
Day 16: $327.68
Day 17: $655.36
Day 18: $1,310.72
Day 19: $2,621.44
Day 20: $5,242.88
Day 21: $10,485.76
Day 22: $20,971.52
Day 23: $41,943.04
Day 24: $83,886.08
Day 25: $167,772.16
Day 26: $335,544.32
Day 27: $671,088.64
Day 28: $1,342,177.28
Day 29: $2,684,354.56
Day 30: $5,368,709.12
Day 31: $10,737,418.24
Solve the system of equations by elimination:4p + 4q = 44p - 4q = 28
Answer:
p =9
q =2
Step-by-step explanation:
4p + 4q = 44 -----------(I)
4p - 4q = 28 -------------(II)
Add the equations and thus q will be eliminated and we can find the value of p.
(I) 4p + 4q = 44
(II) 4p -4q = 28 {Now add}
8p = 72
p = 72/8
p= 9
Plugin p = 9 in equation (I)
4*9 + 4q =44
36 + 4q = 44
4q = 44 - 36
4q = 8
q = 8/4
q = 2
HELP ASAP!!!!
I need help finding slopes (100points and brainlyest if it lets me)
Answer:
Step-by-step explanation:
to find slope, m is slope
m=(y2-y1)/(x2-x1)
let’s use one of the coordinates here:
(50,150) and (100,150)
m= (150-150)/ (100-50)
this is the slope
if this is incorrect please notify me! Thankyou :3 have a great evening :D
Answer:
The slope is 0 and the equation for this graph would be y=150
Step-by-step explanation:
Poppy gives one half of a cake to her big brother and the other half to her three friends who share it equally. What fraction of the cake does each friend get?
Please help!!
Answer:
1/12
Step-by-step explanation:
What is the slope of the line represented by the equation
y = 1/3x + 4
Answer:
Refer to the graph. This might help you
Answer:
1/3
Step-by-step explanation:
y=mx+b
m is the slope
b is the y intercept
y=1/3x+4
1/3 = slope
4 = y intercept
Making the answer 1/3.
greg had a dollar. he spent $0.75. what percent of the dollar did he spend? what percent did he have left?
Answer:
he spent 75%
he now has 25%
Step-by-step explanation:
Which function has two distinct real zeros?
A.) F(x)=2x+2
B.) F(x)=(x-2)²
C.) F(x)=x³+2
D.) F(x)=lxl-2
Answer:
d
Step-by-step explanation:
trust me
Answer:
From its name, the zeros of a function are the values of x where f(x) is equal to zero. ... The function g(x) = x2 – 4 has two zeros: x = -4 and x = 4.
Step-by-step explanation:
Hope this helps :D
A faucet can fill a bathtub in 6 minutes. the drain can empty the tub in 10 minutes. If both the faucets and the drain are open at the same time, this situation is represented by this expression, where t is the number of minutes it will take to completely fill the bathtub.
[tex] \frac{t}{6} - \frac{t}{10} [/tex]
which expression can also represent this situation?
Answer:
4t/15
Step-by-step explanation:
Please trust me
la solucion de un triangulo rectangulo tiene uno de sus lados de 5cm otro de sus lados 7cm y el lado de abajo de 4cm
Answer:
thx sa points
Step-by-step explanation:
Help? I need question 1-8 answers .
Answer:
Hi please resend the question so i can help u!
Step-by-step explanation:
