Answer:
48
Step-by-step explanation:
A customer is comparing the costs of two cell phone plans. In Plan A, he will pay $0.15 per call and there is no monthly fee. In Plan B, he will pay $0.08 per call, but there is a monthly fee of $4.50. What is the greatest number of calls c he can make in one month for Plan A to remain less expensive than Plan B?
Answer: He can make 30 calls in one month
The event coordinator asks you to determine how many students participated in the track-and-field day. The total number of students in seventh and eighth grade combined is 584; 5/8 of them are seventh graders and 3/8 of them are eighth graders. If 4/5 of the seventh graders participated in track-and-field day and 7/8 of the eighth graders participated, about how many total students participated? Describe the process you used to find your answer.
Answer:
584 is the total number of students in the school.
5/8 are in seventh grade and 3/8 are in eighth grade.
4/5 of the seventh graders participated in the track meet, so there were (4/5 · 5/8) · 584 students in the seventh grade participating in the track meet.
7/8 of the eighth graders participated, so there were (7/8 · 3/8) · 584 students in the eighth grade participating in the track meet.
So, all together, there were
(4/5 · 5/8) · 584 + (7/8 · 3/8) · 584 students from the school in the track meet.
Let's simplify as you asked:
(4/5 · 5/8) · 584 + (7/8 · 3/8) · 584 = [(4/5 · 5/8) + (7/8 · 3/8)] · 584 (distributive property - factoring)
= [20/40 + 21/64] · 584 (multiply fractions)
= (1/2 + 21/64) 584 (reduce the first fraction to lowest terms)
= (32/64 + 21/64) 584 (getting a common denominator)
= (53/64) 584 (combine/add the two fractions)
= 483.625 (multiply together)
All together, there were: 483.625 students in the meet.
Step-by-step explanation:
(other guys work not mine!!!!!!!!! )
Roland wants to buy a jacket that is discounted 20% off the regular price. Which of the following is NOT a valid way to determine the amount of the discount?
A
Move the decimal point of the original price one place to the left and then double it.
B
Set up a proportion with the ratio of the original price to the amount of the discount equal to the ratio 20 to 100.
C
Multiply the original price times 0.2.
D
Divide the original price by 5.
Read the excerpts from Team Moon and the NASA article.
And only now—a solid, panic-stricken, gut-wrenching, heart-palpitating ten minutes by clock but feeling like an eternity later—did it sink in for John Coursen, Tom Kelly, and a lot of the other Grumman folks who had poured years of their lives into building the lunar module: Their baby was on the moon. Let the cheering begin!
When the lunar module lands at 4:18 p.m. EDT, only 30 seconds of fuel remain. Armstrong radios "Houston, Tranquility Base here. The Eagle has landed." Mission control erupts in celebration as the tension breaks, and a controller tells the crew "You got a bunch of guys about to turn blue, we're breathing again."
How is the information in the excerpts different?
A. The first excerpt is less emotional than the second excerpt.
B. The first excerpt is less interesting than the second excerpt.
C. The first excerpt is more emotional than the second excerpt.
D. The first excerpt is more interesting than the second excerpt.
Don't answer if you don't know it. My test is due in 47:18. So please help. If you can't don't answer or else I will report you.
Solve the system of linear equations by substitution.
x + 3y = 4
-x + 2y = 6
A ROPE IS 468 INCHES LONG. IF WE CUT IT IN 26 PIECES OF EQUAL LENGTH. HOW LOG IS EACH PIECE?
To find the answer to this question, you must divide 468 by 26. 468/26 = 18
Hope this helps!
Answer:
Each piece is 18 inches long
Step-by-step explanation:
468/26 = 18
so the answer is 18 inches long
What is the slope of the coordinate points (3,-1) (-4, 8)
I WILL MARK BRAINLIEST IF U GET THIS RIGHT!!
Select from the drop-down menus to correctly identify whether the given operation is closed or not closed with respect to each set of numbers.
Real numbers are
closed, not closed
under multiplication.
Irrational numbers are
closed, not closed
under division.
Integers are
closed, not closed
under subtraction.
Positive rational numbers are
closed, not closed
under addition.
Answer:
Real numbers are "closed" under multiplication
Irrational numbers are "not closed" under division
Integers are "closed" under subtraction
Positive ration numbers are "closed"
Hope this helps! :)
Correct answer: closed, not closed, not closed, closed :D
////////////////////////////
Answer:
Maple Street
Step-by-step explanation:
Are those the only options?
Which statement shows the associative property of addition?
HELP
3⋅(5⋅x)=(3⋅5)⋅x
21 + 2y = 2y + 21
If m + 3 = 18, then 18 = m + 3.
(u + 7) + 13 = u + (7 + 13)
thanks :)
Answer:
(u+7)+13=u+(7+13)
Step-by-step explanation:
Cristina uses a ruler to measure the length of her math textbook. She says that the book is 4/10meter long. Is her measurement in the simplest form? If not, what is the length of the book in the simplest form?
What is 437(3)+357(4)
Answer:2739
Step-by-step explanation:
Answers:
a: t = s/d
b: t = sd
c: t = s + d
d: t = s - d
Answer:The answer is C. ;)
Step-by-step explanation:
Please help asap tell me if you cant open the document
Answer:
...
Step-by-step explanation:
can't open the document
the product of c and 2
Answer:
Step-by-step explanation:
C×2
=2c
How do you do this with pythagorean theorem
How do you add 1 + 1? Write a full paragraph in 5 - 6 sentences.
Answer:
To add 1 + 1 you must add the two together. (Obviously-) Take using your fingers as an example. you hold one finger up and add another. that gives you two. you can use this method for a lot of adding problems. I don't recommend using it when adding with a two digit number. The answer two 1 + 1 is 2
[PICTURE ATTACHED] helpp
Answer:
Step-by-step explanation:
Okay so the 4(2t +2) and 4t + 8 + 4t go under 8t + 8, because when you distribute and add like terms, you get 8t+ 8 for both
(8*t)+(8*8) and 8t + 64 go under 8(t+8) because similar to the other, when you distribute and add like terms you get 8(t+8) for both
The last two options 8t+16 and (8+t) +(8+8) go under neither because when distributed and added, they don't match up to either or
Hope that helps!
Someone help me with this ASAP
Answer:
Mr. kelly can make 18 prices of wood that are exactly 1/3 of a foot.
from Monday to Wednesday it's a 7 degree F difference.
The temperature are 5 am is -3 degrees F
The order from coldest to warmest is -6, -3, 0, 1, 4
The sum is 60.50.
Which r - value suggests a strong
positive correlation?
A r = 0.1847
B r = −0.1847
C r = 0.9974
D r = −0.9974
PLSSSSSSSSSSSSSSSSSSSSSSS HELPPPPPPPPPPPP name all three if you don im not giving you brainiest but if you name one or two then i will give you a thanks...
Answer:
a law stating that electric current is proportional to voltage and inversely proportional to resistance.
There is no question for me to answer... Could you add the question and then let me know so I can answer it???
Drag the tiles to the boxes to form correct pears. Multiply the pairs of numbers and match them to their products.
∠A and ∠B are vertical angles. ∠B is supplementary to ∠C. If ∠C measures 42°, how large is ∠A?
Answer:
138 degrees
Step-by-step explanation:
Since angles B and C are supplementary, that would mean they add up to 180. The problem tells us that angle C is 42 degrees, so that would mean that angle B is 138 degrees. We are also told that angles A and B are vertical, which would mean that they are congruent to each other. That leaves us with the answer that angle A is 138 degrees.
Hope this helps! :)
There is a sphere in the center of a cube. The sphere has a radius of x+2 and the distance between the side of the sphere to a side of the cube is 3. What is the volume of only the cube?
Answer: The volume is 3
Here is the real problem ! Giving 30 points!
Answer:
A. the one in the table because after two hours it is the size of the one that began at 20 cm
B. the one describes by the graph because after 10 hours it would be 0 cm and the one described by the equation would be 5 cm
C. the one described by the graph will burn out in 10 hours as shown in the graph and the one described by the equation will burn out in 12 hours
Step-by-step explanation:
i hope this helps
A rectangular bulletin board is 12 inches tall and 27 inches wide. Elena plans to cover it with squares of colored paper that are all the same size. The paper squares come in different sizes; all of them have whole-number inches for their side lengths.
What is the side length of the largest square that Elena could use to cover the bulletin board completely without gaps and overlaps? Explain or show your reasoning.
Answer:
the aswer is 26
Step-by-step explanation:
9514 1404 393
Answer:
3 inches
Step-by-step explanation:
The dimension of interest is the greatest common factor of 12 and 27.
12 = 3 · 4
27 = 3 · 9
The greatest common factor is 3.
Elena needs squares that are 3 inches on each side.
What is Janelle’s position relative to sea level while scuba diving? What should the altimeter read at this position?
Answer:-322
Step-by-step explanation:
It’s negative 322 because she is defending below sea level and sea level is at 0ft
Answer:- 322 ft
Step-by-step explanation:
Due Tomorrow. Please answer as fast as you can. Whoever's answer has most detail will be rewarded with BRAINLY.
Represent the sum as a single rational number. -14 + (-8/9)
· -14 8/9
· 14 8/9
Represent the sum as a single rational number. 7 + 1/9
· -7 1/9
· 7 1/9
A bird that was perched atop a 15 1 /2 foot tree dives down six feet to a branch below. How far above the ground is the bird’s new location?
· 21 1/2
· -6
· 9 1/2
· 15 1/2
Answer:
-14 8/9 ( make sure u put the minus)
7 1/9
the bird one is 9.5 ft away from ground 91/2
Derek is building a model truck. The box says that the scale of the model is 1: 18. If the model is 10 inches long, how long would the real truck be?