Answers
Answer:
6,561
39,204
25,575
52.5625 - 7.5625 = 45
Step-by-step explanation:
(i)
(81)^2
Use (a + b)^2 = a^2 + 2ab + b^2
(81)^2 = (80 + 1)^2 =
= 80^2 + 2 * 80 * 1 + 1^2
= 6400 + 160 + 1
= 6561
(ii)
(198)^2
Use (a - b)^2 = a^2 - 2ab + b^2
(198)^2 = (200 - 2)^2 =
= 200^2 - 2 * 200 * 2 + 2^2
= 40,000 - 800 + 4
= 39,204
(iii)
165 * 155
Use (a + b)(a - b) = a^2 - b^2
165 * 155 = (160 + 5)(160 - 5) =
= 160^2 - 5^2
= 25,600 - 25
= 25,575
(iv)
(7.25)^2 - (2.75)^2
Use a^2 - b^2 = (a + b)(a - b)
(7.25)^2 - (2.75)^2 =
= (7.25 + 2.75)(7.25 - 2.75)
= 10(4.5)
= 45
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Varsha wants to stay in Bolandia City for four nights and has a choice of four hotels. She will stay at the same hotel for all four nights. She requires internet access throughout her stay and breakfast each morning.
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Step-by-step explanation:
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Answer:
38% of 92 rounded to the nearest whole number is 35.
Step-by-step explanation:
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At midnight there were 5 inches of snow on the ground. Since then, snow has been falling at the rate of ½ inch per hour. Identify the y-intercept.
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Step-by-step explanation:
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This is the answer you are looking for
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Answers
Answer:
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Step-by-step explanation:
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Answer:
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Step-by-step explanation:
Situation #3: Jamie can type 243 words in 3 minutes. How many words can
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Answer:
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Step-by-step explanation:
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A driver travels 208 miles in 4 hours. what is the driver's speen,in miles per hour ?
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Answers
Answer:
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Step-by-step explanation:
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Answer:
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Step-by-step explanation:
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There were 24 boys and 20 girls in a chess club last year. This year
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Answers
Answer:
35%
Step-by-step explanation:
If you take the amount of percent the girls decreased, and the amount the boys increased in percentages, you will have your answer when just adding them together. So the answer is 35% or as in 6 boys joined and 2 girls left. So that gives you a total of 8 joining or leaving the chess club or 35% difference.
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Answers
Answer:
3=y
Step-by-step explanation:
9 × 3 = 27 27 - 5 = 22 2y = 5
the perimeter of a rectangle is 8x+10.if the length is 2x+8 what is the width?
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Answer:
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Step-by-step explanation:
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Step-by-step explanation:
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Answer:
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Step-by-step explanation:
Can i have branliest?
Answer:yes, its possible.
Step-by-step explanation:
Emilio added 6 with -3
While Jim subtracted 3 from 6
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Answer:
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Step-by-step explanation:
jason is filling up a 3/4 gallon pitcher. the one he has to fill it up with is 1/3 of a gallon.
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x/3 = 3/4
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I don't understand.
Answers
Answer:
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Step-by-step explanation:
You are adding something to both sides of the equation.
Answer:
Addition property of equality
Step-by-step explanation:
Joy invests $13,000 into an account at an annual rate of 0.6% simple interest for 24 months. what is the principal?
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Answer:
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Step-by-step explanation:
Answer:
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Step-by-step explanation:
Please Help!!
Triangle ABC has vertices A (3,4), B (-5,2), and C (1,4).
Determine
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Answers
A skating rink changes one admission price for adults and a different admission price for children. The total admission price for a group of 4 adults and 10 children is $57. The total admission price for a group of 3 adults and 7 children is $41. What are the admission prices for an adult and for a adult?
Answers
Given:
The total admission price for a group of 4 adults and 10 children is $57.
The total admission price for a group of 3 adults and 7 children is $41.
To find:
The admission prices for an adult and for a children.
Solution:
Let the price of an adult be x and price of children be y.
According to the question,
[tex]4x+10y=57[/tex] ...(i)
[tex]3x+7y=41[/tex] ...(ii)
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[tex]12x+30y=171[/tex] ...(iii)
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[tex]12x+28y=164[/tex] ...(iv)
Subtract (iv) from (iii).
[tex]12x+30y-12x-28y=171-164[/tex]
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[tex]y=3.5[/tex]
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[tex]4x+35=57[/tex]
[tex]4x=57-35[/tex]
[tex]4x=22[/tex]
Divide both sides by 4.
[tex]x=5.5[/tex]
Therefore, the price for an adult is $5.5 and price for a child is $3.5.
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Answer:
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f(x)=4x+4;{-2,-1,0,1,2}
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Answer:
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Step-by-step explanation:
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Answer:
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Step-by-step explanation:
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Group of answer choices
the number of candy bars; open curly brackets 0 comma 1 comma 2 comma 3 comma horizontal ellipsis comma 425 close curly brackets
the number of candy bars; the set of all real numbers from 0 to 300
the amount made from selling the candy bars; the set of all real numbers from 0 to 300
the amount made from selling the candy bars; open curly brackets 0 comma 1 comma 2 comma 3 comma horizontal ellipsis comma 425 close curly brackets
Answers
Answer:
its c
Step-by-step explanation:
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Answer:
c
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Answers
Answer:
18
Step-by-step explanation:
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y=4x+11
Step-by-step explanation:
Answer:
y=4x+11
Step-by-step explanation:
y - 3 = 4(x + 2)
=
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=
y - 3 (+3) = 4x + 8 (+3)
=
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A local hamburger shop sold a combined total of 488 hamburgers and cheeseburgers on Friday. There were 62 fewer cheeseburgers sold than hamburgers. How
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Answers
9514 1404 393
Answer:
275
Step-by-step explanation:
Let h represent the number of hamburgers sold. Then the number of cheeseburgers sold is h-62, and the combined total is ...
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(8x+9)(7x^2+3x+3)
Multiply
Answers
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Step-by-step explanation:
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Answers
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Answers
Answer:
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Step-by-step explanation:
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