Answer:
1. 37.5 (70*0.50)
2. 12 (60*0.20)
3. 45 (60*0.75)
Step-by-step explanation:
m * p
(percentage in decimal form)
Jessica's parents are always telling her to turn off the lights when she leaves her room. The fixture in Jessica's room requires four bulbs that each use 75 watts of
electricity when they're on.
a. Jessica's parents estimate that she leaves the lights on unnecessarily for 2.5 hours per day. How many watt-hours of electricity are used by these bulbs during 2.5
hours?
b. Approximately how many kilowatt-hours of electricity are used in a year to keep these bulbs lit for 2.5 hours per day?
C. At a cost of $0.12 per kilowatt-hour, how much money is wasted per year by keeping these lights on unnecessarily? Round to the nearest dollar.
d. If five million people keep lights on as Jessica does, how much is wasted in unnecessary electric expenses?
Answer:
Step-by-step explanation:
4*75 = 300 watts ( her light)
a) 2.5*300=750 w/h
b) 365*750 = 273.75 Kw/h
c) (0.12)*273.75 = $32.85
d) 32.85 * 5,000,000 = $164,250,000.00
Answer:
a.) 750
b.) 273.75
c.) $33.00
d.) $165,000,000.00
Ms. Pacheco wrote the following expression. [7 x (4 + 11)] - 9 What is the value of the expression?
Answer: 105x-9
Step-by-step explanation:
Sorry love don’t feel like typing the explanation! :(
Find the missing probability.
P(A) = 7/20 P(B) = 7/10 P(A and B) = 49/200 P(A or B) = ?
A) 27/40 B) 161/200
C) 16/25 D) 51/100
Answer:
2740 is the correct answer
Answer:B is correct
Step-by-step explanation:
Which problem can be solved with 6divided 1/2
Answer:
D
Step-by-step explanation:
6 ounces ÷1/2 ounce slices
What are the graph coordinates of the vertex of the graph function y=x^2+6x-11
Answer:
(3-2) hope it helps sorry if wrong it should be right
Answer:
(-3, -20)
Step-by-step explanation:
Help me with this please
Answer:
3418.05 (not rounded)
Step-by-step explanation:
Volume = Area * height
V =pi*(8)^2*17
Answer:
i dont know :(
Step-by-step explanation:
Place the samples in order from the sample with the greatest variation to the sample with the least variation.
a sample of
20 women
a sample of
5 women
a sample of
45 women
a sample of
60 women
Answer:
1. a sample of 60 women
2. a sample of 45 women
3. a sample of 20 women
4. a sample of 5 women
Step-by-step explanation:
Ms. Garcia burns 236 calories riding her bike each
hour. She wants to burn more than 354 calories
riding her bike at the same rate.
Which inequality represents all possible values for
t, the number of hours Ms. Garcia must ride her
bike to burn more than 354 calories?
A t < 1.5
B t > 1.5
C t < 0.5
D t > 0.5
The inequality that represents all possible values for t is:
t > 1.5
Which inequality is the correct one?
We know that she burns 236 calories per hour, so if she rides for t hours, she burns a total of:
t*236 calories.
Now, she wants to burn more than 354, so we have the inequality:
t*237 > 354
Solving for t (by dividing both sides by 237) we get:
t > 354/237 = 1.5
t > 1.5
So the correct option is B.
If you want to learn more about inequalities, you can read:
https://brainly.com/question/18881247
There are 15 applicants for four jobs: computer programmer, software tester, manager, and systems engineer.
A) Permutation
B) Combination
C) Circular permutation
Answer:
The answer is "Option A".
Step-by-step explanation:
[tex]\to ^{15}P_{4} = \binom{15}{4}\\\\[/tex]
[tex]=\frac{15 !}{15-4!}\\\\=\frac{15 !}{11!}\\\\ =\frac{15 \times 14 \times 13 \times 12 \times 11!}{11!}\\\\ = 15 \times 14 \times 13 \times 12 \\\\=32760[/tex]
Answer:
A is the answer the person above is a NERD -_-
Step-by-step explanation:
What is m
A: 19°
B: 68°
C: 112°
Answer:
m<N=68
Step-by-step explanation:
opposite angles of the parallelogram are equal(or congruent):
4x+36=6x-2
6x-4x=36+2
2x=38
x=38/2=19
the sum of the angles of the parallelogram =360
4x+36=4(19)+36=112 angle P
6x-2=6(19)-2=112 angle M
let Q= N=x
2x+112+112=360
2x=360-224
2x=136
x=136/2=68
Find the volume of each cylinder. Which cylinder has the greater volume? Use 3.14 for π and round your answers to the nearest hundredth.
Two cylinders. The circumference of the base of cylinder A is 3 meters and the height of the cylinder is 5 meters. The circumference of the base of cylinder B is 5 meters and the height of the cylinder is 3 meters.
Answer:
cylinder A is 141.3 meters
cylinder b is 245.5 meters
Step-by-step explanation:
Cylinder a: 3x3x5x3.14
cylinder B : 5x5x3x3.14
Convert radian measure into degrees.
From the latter, we obtain the equation 1 radian = (180π)o . This leads us to the rule to convert radian measure to degree measure. To convert from radians to degrees, multiply the radians by 180°π radians .
What factors greatly affect the climate if you live near the Manila Bay?
How can you use estimation to justify that the answer $7,875 is reasonable? $1,575 X 5 =p $1,575 X 5 = $7,875. So, p = $7,875.
Answer:
p= 1
Step-by-step explanation:
1,575x5 =p p=1
Find the volume of the cone, round your answer to the nearest hundredth. Use 3.14
for t.
9
-2-0
units
Answer: 37.7un^3
Step-by-step explanation:
Volume = 1/3πr^2h
=1/3×π×22×9
=12π
= 37.699111843078 feet3
Rick wants to use multiplication to solve {k} = 7 \div \dfrac13k=7÷ 3 1 k, equals, 7, divided by, start fraction, 1, divided by, 3, end fraction. Which multiplication equation can Rick use? Choose 1 answer: Choose 1 answer: (Choice A) A \dfrac13\times{k} =7 3 1 ×k=7start fraction, 1, divided by, 3, end fraction, times, k, equals, 7 (Choice B) B \dfrac13={k}\times7 3 1 =k×7start fraction, 1, divided by, 3, end fraction, equals, k, times, 7 (Choice C) C \dfrac13\times7 = {k} 3 1 ×7=kstart fraction, 1, divided by, 3, end fraction, times, 7, equals, k
Answer: (a)
Step-by-step explanation:
Given
Equation is
[tex]k=\dfrac{7}{\frac{1}{3}}[/tex]
Write the cross-multiplication of the given equation i.e.
[tex]\Rightarrow \dfrac{1}{3}\times k=7[/tex]
This corresponds to the option (a).
Answer:
C
Step-by-step explanation:
ITS C BECAUSE I WASTED A MISTAKE BC OF THE OTHER GUY ON TOP
DONT USE HIS
JUST USE MINE
DONT NEED AN EXPLANATION NOOOOB
Which of these is part of the prime factorization of 630?
3 with a tiny 2 x 7
5 with a tiny 3
3 with a tiny 3
5 with a tiny 2 x 7
Answer:
I don't really get the answer choices but I can show you how I did my work using factor trees.
I put astericks(*these) around the prime #'s(what's in the circles).
630
^
2.* 315
^
5. * 63
^
3.* 21
^
7*. 3*
hope this helps!!
2. If curves the length of a circle's diameter were laid out along the circle end to end, how many of them would fit on the circle? (1) more than I but less than 2 (2) more than 2 but less than 3 (3) more than 3 but less than 4 (4) more than 4 but less than 5 by the length of its diameter that ratio is closest to.
If someone could answer this quickly I will mark them brainleast.
girl if im being honest i dont know Step-by-step explanation:
someone plz help figure this out i need it today
Can u make the picture closer
Help due soon please help
Answer:
y=5
Step-by-step explanation:
will mark brainliest please help!!
Answer:
The range was same in both classes
Suppose that a new employee starts working at $7.72 per hour and receives a 5% raise each year. After time t, in years, his hourly wage is given by the equation y=$7.72(1.05)t. Find the amount of time after which he will be earning $10.00 per hour.
After what amount of time will the employee be earning $10.00 per hour?
Answer:
substitute 10 for y (y=10) and solve for t
2.17
Step-by-step explanation:
I think the equation is written wrong because assuming that his wage increases at the end of each year, the beginning of the first year wages should be 7.72, not 0.
recommended correction
y=7.72 + (1.05)t
Ewok's favorite candy is a gummy
worm. One gummy worm is 13
inches long: How many gummy
worms will it take to lay them end to
end to have a total length of 45
inches
Answer:
3.5
Step-by-step explanation:
45 inches divided by 13 inches
gets you 3.4615 but i think you should round up so 3 and a half
Please HELPPPP I need this right now!
Answer:
The radius will be half of your diameter so,
since 26 is your diameter half of that is = 13 is your new radius.
Now finding the area:
13^2 = 169
169 x 3.14 = 530.66 cm2 is your area.
Formula of an area of a circle:
πr^2
pi(3.14 or 22/7 depending on whatever they tell you to use for pi) x radius being squared
please help me!!!! :(((
Answer: 2x, x^3, 3x^4, 4x^5, 34
Step-by-step explanation:
Standard form starts with the lowest degree to the highest, then ends with any naked numbers
23. Assuming the green is flat, what is the radius of the green?
Answer:
60
Step-by-step explanation:
[tex]r^{2} +32^{2} = (r+8)^{2}[/tex]
[tex]r^{2} +1024=r^{2} +16r + 64[/tex]
[tex]960 = 16r[/tex]
[tex]60=r[/tex]
A solid object is made up of two cubes resting side by side. One cube has an edge length of 5.3 ft, and the other cube has an edge length of 3 ft. What is the volume of the solid object?
Answer:
2.8
Step-by-step explanation:
Answer:
it's 175.877
Step-by-step explanation:
100% sure
Jose is trying to pick out an outfit for the first day of school. He can choose from 2 pairs of pants, 6 t-shirts, and 3 pairs of shoes. How many different outfits does Jose have to choose from?
Jose has to choose from 36 different ways.
What is the Combination?The various ways in which objects from a set may be selected, generally without replacement to form subsets is known as combination.
For the given situation,
Pairs of pants = [tex]2[/tex]
T-shirts = [tex]6[/tex]
Pairs of shoes = [tex]3[/tex]
The formula to find the number of ways using combination = [tex]nC_{r}[/tex]
Number of ways of picking the outfit = [tex](2C_{1}) (6C_{1}) (3C_{1} )[/tex]
⇒ [tex](2)(6)(3)[/tex]
⇒ [tex]36[/tex]
Hence we can conclude that Jose has to choose from 36 different ways.
Learn more about combinations here
https://brainly.com/question/13003667
#SPJ2
In ΔOPQ, the measure of ∠Q=90°, OP = 7.2 feet, and PQ = 5.5 feet. Find the measure of ∠P to the nearest degree.
Answer:
40
Step-by-step explanation:
DeltaMath
HELP ASAP, LINKS AND ABSURD ANSWERS WILL BE REPORTED! I WILL MARK BRAINLIEST!!