Answer:
you multiply 8 with 0.9 easy like that
Simplify the following expression: (−3)(−2)( −2) (1 point)
a
−12
b
12
c
−18
d
18
Answer:
Choice A, -12
Step-by-step explanation:
(−3)(−2)( −2)
6(-2)
-12
Help help please please
Answer:
7383:uidiebb!!-7juuiiighwb. uwiskak
Tames is six years older
than Peter and the average
of their ages is twice peter age.
How old are they
Answer:
3 and 9
Step-by-step explanation:
let Peter's age be x then James is x + 6
The average of their ages is twice Peter's age, that is
[tex]\frac{x+x+6}{2}[/tex] = 2x
[tex]\frac{2x+6}{2}[/tex] = 2x
x + 3 = 2x ( subtract x from both sides )
3 = x
Then Peter is 3 years old and James is x + 6 = 3 + 6 = 9 years old
What is the area of this figure?
16 mm
5 mm
8 mm
7 mm
3 mm
9 mm
square millimeters
Answer:
107 square millimeters
Step-by-step explanation:
You can make this problem easier by splitting this into pieces you already know how to solve. So, you can draw a line down the middle to get 2 rectangles whose formula are Length X Width. Now, use the side lengths 5x7=35 and 8x9=72.
Add the 2 area of rectangles together to get 107 which is your total area.
Residents of the town of Maple Grove who are connected to the municipal water supply are billed a fixed amount monthly plus a charge for each cubic foot of water used. A household using 1900 cubic feet was billed $156, while one using 2600 cubic feet was billed $184. (a) What is the charge per cubic foot? dollars per cubic foot (b) Write an equation for the total cost, c, of a resident's water, , as a function of cubic feet of water used. c(w) = dollars c) How many cubic feet of water used would lead to a bill of $216? cubic feet
9514 1404 393
Answer:
$0.04 per cubic footc(w) = 0.04w +803400 cubic feetStep-by-step explanation:
(a, b) We are given two pairs of values:
(w, c) = (1900, 156) and (2600, 184)
so we can write the equation of the relationship using the 2-point form of the equation of a line.
y = (y2 -y1)/(x2 -x1)(x -x1) +y1
c = (184 -156)/(2600 -1900)(w -1900) +156 . . . . . substitute given points
c = 28/700(w -1900) +156
c(w) = 0.04w +80
The charge per cubic foot is $0.04.
__
(c) For a bill of $216, the amount of water used is ...
216 = 0.04w +80
136 = 0.04w
3400 = w
Use of 3400 cubic feet of water would lead to a bill of $216.
The length of a rectangle is 2 more than twice the width. If the perimeter of the rectangle
is 34 inches, what is the area of the rectangle?
Answer:
Area = WxL=60 square inches
W = 5 inches
L = 12 inches
Step-by-step explanation:
Note, some teachers take points off if you don't include units!!
L = 2W+2
W = W
34 = 2L + 2W (perimeter)
34 = 2(2W+2) +2W solve for width
34 = 4W+4+2W = 6W+4
30 = 6W, so W=5
L = 2(5) +2 = 12
Evaluate the following expression if x = -7.
3x2 - 4x + 5
3 ×2 - 4(-7) + 5
3 × 2 +28 + 5
6 + 28 +5
=39
The sum of two consecutive numbers is 2n +1. What are the numbers
Answer:
n,n+1
Step-by-step explanation:
let the numbers be N and N+1
N+N+1=2n+1
2N+1=2n+1
2N=2n,
N=n
where n is an integer.
so N can be any Integer.
so numbers are n,n+1
Answer:
n,n+1
Step-by-step explanation:
decompose 2n+1 n and n+1
and when you add them you get 2n+1 so the answer is n and n+1
Solve the system by substitution.
y = -9x
y = 2x + 33
Answer:
[tex]y = - 9x \\ theny = 2x + 33 \\ - 9x = 2x + 33 \\ - 9x - 2x = 33 \\ - 11x = 33 \\ x = \frac{ - 33}{11} = - 3 \\ x = - 3 \\
then\\ y=-9×-3=21\\ thank \: you[/tex]
How do you convert 0.580 (80repeating) as a fraction?
Answer:
58/100
Step-by-step explanation:
9514 1404 393
Answer:
115/198
Step-by-step explanation:
The repeat is 2 digits, so you can multiply the number by 10 to that power.
x = 0.58080...(2-digit repeat)
100x = 58.08080...(2-digit repeat)
Then subtract the original number.
100x -x = 99x = 58.08080... -0.58080... = 57.5
Now, divide by the coefficient of x.
x = 57.5/99 = 115/198
This fraction cannot be reduced, so is the fraction you're looking for.
0.580...(2-digit repeat) = 115/198
_____
Additional comment
The number of 9s in the denominator is the number of repeating digits. If the repeat started at the decimal point, the fraction would be those two repeating digits divided by two 9s (99).
Your number can be considered to be ...
0.58080...(2-digit repeat) = 0.5 + 0.0808...(2-digit repeat)
This will be ...
0.58080... = 1/2 + 8/99 = 99/198 +16/198 = 115/198
name the property of (4+-4)y=0y
Answer:
o
Step-by-step explanation:
4t y=0y=0
You need to buy a carpet that measures 7.5 yards long and 5 yards wide and costs $49.50 per square yard. How much will the carpet for the room cost?
Answer:
$1,856.25
Explanation:
To find the square yards, multiply length and width
7.5 * 5 = 37.5
Then, since each square yard costs $49.50, multiply the square yards and the cost
37.5 * 49.50 = 1,856.25
Thus the answer is $1,856.25
The carpet for the room will cost $1,856.25.
This is the product of the unit cost per square yard multiplied by the area of the room.
The area of the room is = 37.5 square yards (Length x Width)
Length of the room = 7.5 yards
Width of the room = 5 yards
Therefore, the total area of the room = 37.5 square yards (7.5 x 5)
Thus, the total area of the room is 37.5 square yards and since each square yard costs $49.50, the total cost for buying the carpet will cost $1,856.25 ($49.50 x 37.5).
Learn more about area of a space at https://brainly.com/question/16758524
10x+2-3x+6=22
solve for x, step by step
Answer:
x = 2
Step-by-step explanation:
10x -3x + 2 +6 = 22
7x + 8 = 22
7x = 22 - 8
7x = 14
x = 14/7
x = 2
Answer:
x = 2
Step-by-step explanation:
Can someone please help me please?
Answer:
I'ma take a wild guess since I think I'm right I'd say try C
Step-by-step explanation:
don't need one
Answer:
A is the correct answer
Step-by-step explanation:
The horizontal shift results from a constant added to the input. Move the graph left for a positive constant and right for a negative constant.
Are 28/42 and 16/24 equivalent? Yes or No Find out by reducing both fractions to
their simplest forms then comparing the resulting fractions. You must follow all the
steps and show all of your work to get points for this assignment.
Yes
Step-by-step explanation:
[tex] \frac{16}{24} = \frac{2}{3} [/tex]
if we divide 16 ÷ 8 = 2
if we divide 24 ÷ 8 = 3
[tex] \frac{28}{42} = \frac{4}{6} = \frac{2}{ 3} [/tex]
if we divide 28 ÷ 7 = 4
if we divide 42 ÷7 = 6
we divide both 6 and 4 ÷2
2/3
[tex] \frac{16}{24} = \frac{28}{42} [/tex]
The number of kilograms, y, of a radioactive element that remains after t hours can be modeled by the equation y=0.23(0.91)t. What is the rate of decrease of this radioactive element?
Answer:
c
Step-by-step explanation:
Troy made a scale drawing of the Statue of Liberty which has an actual height of 305 feet. He decides to use a scale in which 1 inch represents 50 feet. What is the height in inches of Troy’s drawing?
The height of the model is 6.1 inches.
If 1 inch represents 50 feet, to find the answer, divide 305/50.
the answer is 6.1 inches.
Hope this helps, and have a fantastic day.
0.546 = 0.4 + ? + 0.006
Please Explain the Answer to me!
Answer: ? = 0.14
Step-by-step explanation:
So you need to find the value that fits the question mark. This means you have to get it by itself.
To start you subtract 0.4 from 0.546, which equals .146. Then you subtract 0.006 from 0.146 to get 0.14
What it looks like mathematically :
0.546 = 0.4 + ? + 0.006
0.146= ? + 0.006
0.14=?
Hopes this helps :)
The average yearly cumulative rainfall in Tucson by month is shown in the graph below. Does this
graph represent cumulative rainfall as a function of the day? Why or why not? What is the average
annual cumulative rainfall in Tucson? What is the approximate average rainfall in December? During
which month is average rainfall the greatest? How do you know?
Answer:
The average annual cumulative rainfall is [tex]1[/tex] inch per month.
During month of August average rain fall is greatest because slope in this month is maximum.
Step-by-step explanation:
The graph does not represent cumulative rainfall as a function of day.
Because they have average all values for month Total cumulative rainfall is [tex]12[/tex] inches.
Total period is [tex]12[/tex] month
So average annual cumulative rainfall is
[tex]$12 / 12=1$[/tex] inch per month
Average rain fall in month of December= (average cumulative rainfall in December[tex])-([/tex]average cumulative rainfall in November)
[tex]=12-11[/tex]
[tex]$=1$[/tex] inch
During month of August average rain fall is greatest because slope in this month is maximum.
Learn more about average, refer :
https://brainly.com/question/22390452
Which equation is a linear function?
Question 2 options:
A)
–5y + 3x = 7
B)
C)
y = −3x2 −5x +3
D)
y = 5 ⋅ 2x − 3
Answer: y=3*2+2
Step-by-step explanation:
A pair of jeans is on sale for 25% off the original price. Which expression represents the sale
price? If the original price of the jeans is $40, evaluate the expression to find the sale price.
O s=p-0.25p; $30
O s= p - 25; 515
O s = p -0.25p; 510
O s=p-0.25: $39.75
Answer:
$30
Step-by-step explanation:
If it's 25% off, then to find the sale price we just need to subtract 25% of the original price from the original price.
Original price is 40 so we do 40 - (40 * 0.25) = 30
simplify -5^2-2^4
and it just says to make it 20 words long
Answer:
9 because all you have to do is put number by number in the calculator
Mr. Santiago can buy light fixtures in packages of 12 and light bulbs in packages of 9. He bought the fewest number of light fixtures and light bulbs so that there is exactly one bulb per fixture with none left over.
How many packages of light fixtures and how many packages of light bulbs did Mr. Santiago buy?
Please Help
List the multiples of both 12 and 9:
12, 24, 36, 48, 60
9, 18, 27, 36, 45
The lowest common multiple is 36.
This will make the fixtures and bulbs equal.
This means they bought 3 packages of light figures 3 x 12 = 36)
And bought 4 packages of bulbs ( 4 x 9 = 36)
Find out LCM of 9,12
LCM=2(2)(3)(3)=36Now
No of light packages=36/12=3
No of light bulbs=36/4=9
Help
Help
Help
Help
Help
Help help
Is 5 5/6 + 1 3/4=5 1/12 reasonable
Answer:
No, it is unreasonable.
Step-by-step explanation:
5/5/6+1/3/4=35/6+7/4
=70/12+21/12
=91/12
=7 7/12
Nick planted a cedar tree. It grew 10 cm in ½ of a year. What will the height of the tree be at the end of 6 years?
Step-by-step explanation:
1/2 a year=10cm
1year=20cm
6years=(20×6)cm
therefore the answer is 120cm
I need the answers my today thank you pls and can you screenshot and write it for me pls
Identify the range of the function
Answer:
(2,8)
Step-by-step explanation:
I think that given answer is correct answer
Erica bought a pencil, a rubber and a ruler for £1. Fritz bought three pens for 75p. Geraldine bought two rubbers and a pen for 45p. Horace bought a pencil, a ruler and a pen.
Answer:
Okay so, one pen equals to 25p, one rubber equals to 10p, and Erica bought a pencil, a rubber, and a ruler for 1 pound, which means 25p+10p equals to 35p, and 100-35= 65p, so one ruler costs 65p, so Horace bought a pencil, a ruler and a pen, we know one pencil equals 25p, a ruler costs 65p, and a pen also equals 25p, so 25+65+25 = 115, so 1pound 15 p
Step-by-step explanation:
(-7) (2) (-2) as multiplication
Answer:
28
Step-by-step explanation:
-7*2=-14*-2=28
