Step-by-step explanation:
4000 Watts means that if you run the machine for one hour, you are using 4000 watt-hours or more commonly used 4 kWh (kilo means 1000).
for 14 cents per kWh we have then
14 × 4 = 56 cents per day
now, if the other model uses only 2000 Watts and still only needs 1 hour for the same job (which is in reality NOT a given, very often such a machine means that it will have to run close to 2 hours) it would cost
14 × 2 = 28 cents per day, saving 28 cents per day.
for a year running the dryer daily
we would save
28 × 365 = 10220 cents = $102.20 savings per year
how dose the maping diagram of a function differ from a mapping diagram of a function
Answer:
A function assigns only output to each input. A mapping diagram can be used to represent a relationship between input values and output values. ... A mapping diagram represents a function if each input value is paired with only one output value.
For what value of t is f (t) = 0.0625
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Answer:
t = 4
Step-by-step explanation:
It can be useful to convert the numbers to ratios of integers.
0.0625 = (0.5)^t
1/16 = (1/2)^t
1/2^4 = 1/2^t
4 = t . . . . . . . match exponents
__
If you like, you can solve this using logarithms.
0.0625 = 0.5^t
log(0.0625) = t×log(0.5)
t = log(0.0625)/log(0.5)
t = 4
Write an equation that I can find the value of X
2.Find the Value of X
3. Find the length of MP
4.Find the length of NP
Answer:
SEMOGA JAWAPAN INI DAPAT MEMBANTU
Christina took $20 with her to the movies. She spent $18, then Meredith gave her $10 that she owed her, and finally she spent $8 more. How much money did she go home with? ( im in 7th grade)
Answer:
she went back home with 4 dollars
Simplify the expression 5(8-m)
Answer:
5(8-m)
5 x 8 = 40
5 x m = 5m
40-5m
Step-by-step explanation:
Find the midpoint of the line segment joining the points (5,6) and (-1,-6).
The midpoint is
(Type an ordered pair. Use integers or simplified fractions for any numbers in the expression.)
Answer:
The midpoint is (2,0)
Step-by-step explanation:
To find the x coordinate of the midpoint, add the x coordinates of the endpoint and divide by 2
(5+-1)/2 =4/2 =2
To find the y coordinate of the midpoint, add the y coordinates of the endpoint and divide by 2
(6+-6)/2 =0/2 =0
The midpoint is (2,0)
Find the MIDPOINT of the following two points:
(3,-1) (2,4)
Type your answer as an ordered pair.
Answer: (2.5 ; 1.5 )
Step-by-step explanation:
The midpoint of the segment with the points [tex]\bf ( x_1 \ ; \ y_ 1)[/tex] and [tex]\bf (x_2 \ ; \ y_2)[/tex] is calculated by the formula:[tex]\bf (x _0 \ \ ; \ \ y _0) = \bigg(\dfrac{x_1+x_2}{2} \ ; \ \dfrac{y_1+y_2}{2} \bigg)[/tex] Then : [tex]\bf (x_0 \ ; \ y_ 0)=\bigg( \dfrac{3+2}{2} \ \ ; \dfrac{4-1}{2} \bigg) =( 2.5 \ \ ; \ \ 1,5 )[/tex]
Thank you in advance.
Answer:
Yes this statement is true because 0/3 is 0
Answer:
False.
Step-by-step explanation:
x = 0 would be the only solution to make the statement true. Anything other than x = 0 will make the statement false.
Rt+Rs=st solve for s
Simplifying Rs = st + -1Rt Solving sR = st + -1tR Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-1st' to each side of the equation. sR + -1st = st + -1st + -1tR Combine like terms: st + -1st = 0 sR + -1st = 0 + -1tR sR + -1st = -1tR Combine like terms: -1tR + tR = 0 sR + -1st + tR = 0
s = − Rt / R − t
I hope this helps!
w
Z
х
Z is in the interior of ZWXY.
If m2WXZ= 110°, and m2ZXY = 20°,
what is m2WXY?
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Answer:
130°
Step-by-step explanation:
The angle sum theorem applies.
∠WXY = ∠WXZ +∠ZXY
∠WXY = 110° +20°
∠WXY = 130°
How many distinct prime factors are in the number 120 ?
Answer:
3.
Step-by-step explanation:
Note the prime factorization of 120,
[tex]120=2^3\times 3\times 5[/tex]
Therefore, there are 3 distinct prime factors, namely 2, 3 and 5.
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]
how can you find out the mass of a marble
How many trucks will pass Luann if 90 vehicles passed her??
Answer:
90????
Step-by-step explanation:
is this a tongue twister or what??
7X +6 equals 4X +9 what is the value of X
Answer:
the answer is 1.
Step-by-step explanation:
Try and plug in 1 as in x it would come out with equal to b0th sides
Answer:
x = 1
Step-by-step explanation:
7x + 6 = 4x + 9
3x = 3
x = 1
( using the quadrata formula solve 282 +15% +750
Step-by-step explanation:
Q.282 +15% +750
282 +15 /100+750
282+3/20+750
1032+3/20
20643/20
These two figures are the image and pre-image of a
dilation.
Answer:
I believe it is 8m
Step-by-step explanation:
because 4 went up 2 so that is now 6 so if 6 goes up 2 then it would be 8
“If a population is growing at a rate of 3% per year, how long will it take to double? Show work.”
Thank you!
1+(-2)+3+(-4)+...+2011+(-2012)+2013
4x + 2y = 12 solve for y
Let's solve for y :
[tex]4x + 2y = 12[/tex][tex]2y = 12 - 4x[/tex][tex]y = \dfrac{2(6 - 2x)}{2} [/tex][tex]y = 6 - 2x[/tex]i hope it helped !!
Answer: Hello There!..................
Move all terms that don't contain y
to the right side and solve.
y=−6+2x
Step-by-step explanation:
Mark me brainest please. Hope this helps. Anna ♥
Find the distance between the pair of points. Round your answer to the nearest tenth if necessary.
Answer:
The distance between the pair of points is 12.0 (to the nearest tenth)
Step-by-step explanation:
The distance between a pair of points in a coordinate system is found by the formula:
d =[tex]\sqrt({x_2-x_1)^2+(y_2-y_1)^2}[/tex]
where, the points are:
[tex](x_1,y_1)\ and\ (x_2,y_2)[/tex]
From the graph,
[tex](x_1,y_1)=(-6,-2)\\(x_2,y_2)=(2,7)[/tex]
Substitute the points into the formula:
[tex]d=\sqrt{(2-(-6)^2+(7-(-2)^2} \\d=\sqrt{(2+6)^2+(7+2)^2} \\d=\sqrt{8^2+9^2} \\d=\sqrt{64+81} \\d=\sqrt{145} \\\d=12.0[/tex]
If Shondra traveled the same number of miles each hour, how many miles did she travel in 4 hours?
210
240
300
360
Answer:
how many miles did she travel each hour? Then I can answer your question
If a:b=b:3=3 then find the value of a.
Answer:
b:3=3
⇒b=1
a:b=3
⇒a:1=3
⇒a=1/3
Step-by-step explanation:
Find the product in lowest terms.
15/32⋅36/28⋅44/12
Answer:
495/224
Step-by-step explanation:
15/32⋅36/28⋅44/12
= (15/32(9/7))(44/12) [simplify 36/28]
=135/224 (44/12) [multiply]
=135/224 (11/3) [simplify 44/12]
=495/224 [cross multiply]
[answer]
Log type of question please help
Answer:
Step-by-step explanation:
2. Find the measure of each exterior angle of regular polygons (any two). (2x2=4).
(a) Pentagon (b) Heptagon (C) Decagon (d) 18-gon (e) 20-gun
Answer:
a) 72
b) 60
c) 51.43
d) 24
Step-by-step explanation:
The measure of each exterior angle of a regular polygon =
n
360
⇒ The measure of each exterior angle of a regular pentagon =
5
360
=72
⇒ The measure of each exterior angle of a regular hexagon =
6
360
=60
⇒ The measure of each exterior angle of a regular heptagon =
7
360
=51.43
⇒ The measure of each exterior angle of a regular polygon of 15 sides =
15
360
=24
AB=BC
Find x:
thank you ❤️
Answer:
x = 43
Step-by-step explanation:
3x - 31 = 2(x+6)
3x - 31 = 2x+ 12
x =43
Write each decimal as a percent and a fraction -0.04
Answer:
-4% -1/25
Step-by-step explanation:
To convert a decimal to a percentage, multiply it by 100.
-0.04 * 100 = -4
To convert a decimal to a fraction, put the decimal as a fraction over 1 and multiply until the numerator (top number) is a whole number and then simplify.
[tex]\frac{-0.04}{1}[/tex] x [tex]\frac{100}{100}[/tex] = [tex]\frac{-4}{100}[/tex]
-4/100 simplified = -1/25 (because 4 goes into 100 25 times)
Pllllzzzz heeeelllppp
Answer:
a. circumference
b. area
c. area
d. circumference
Step-by-step explanation:
a. You are using the circumference formula to find the distance around a CIRCULAR track, if you used area, that would include the space in between the track as well. You are only trying to find the track line. ( you can draw a picture of a track and show what you are finding. )
b. You are trying to find the amount of area that the tiles make up in the circular floor, how much of the floor the tiles take up.
c. You are trying to find how much of the oil takes up of the WHOLE bottom of the frying pan.
d. Finding the circumference of your wheel can help determine the distance the car traveled. If you used area, it would not be useful.
which has a greater effect on the volume - changing the radius by a given amount or changing the height by the same amount/ why?
Answer:
hanging the radius by a given amount has a greater effect on the volume than changing the height by the same amount. This is because the value of the radius is squared in the formula.Step-by-step explanation:
