Answers
Answer:
[tex]x = \frac{5a-2} {7+5a}\\[/tex]
Step-by-step explanation:
Given the expressions
[tex]x = \frac{5}{9y+5}....1\\y = \frac{5}{5a-2} ...2[/tex]
Substitute 2 into 1
[tex]x = \frac{5}{9(\frac{5}{5a-2} )+5} \\x = \frac{5}{(\frac{45}{5a-2} )+5} \\x = \frac{5}{\frac{45+5(5a-2)}{5a-2} } \\x= \frac{5}{\frac{35+25a}{5a-2} }\\x = \frac{5(5a-2)} {35+25a}\\x = \frac{5(5a-2)} {5(7+5a})\\\\x = \frac{5a-2} {7+5a}\\[/tex]
Related Questions
Four friends are told that the average (mean) of their grades for their favorite class is 84.5%.
Anthony got 86%, Jasmine got 92%, and Kaitlyn got 70%.
Jonathan's grade was not revealed.
What grade did Jonathan get?
PLEASE HELP SOON
Answers
Multiply the average by number of people:
84.5 x 4 = 338
This means the total of the 4 grades need to equal 338
To find Jonathan’s grade subtract the other 3 grades from 338:
338 - 86 - 92 -70 = 90
Jonathan’s grade was 90
0.1 divided by 7 pls answer I need this by tomorrow
Answers
Answer:
0.014286
Step-by-step explanation:
HELP PLEASE IM ON A TIMER!!!
To buy a PS5 bundle, Amir borrowed $850 for 2 years at a simple interest rate of 2.5%. How much did he have to pay back in all? A.$42.50 B.85.00 C.$850 D.$892.50
Answers
Answer:
d.
Step-by-step explanation:
Answer:
D. $892.50
Step-by-step explanation:
First we find out the interest:
850 * 2.5% = 21.25
Since this is 2 years we multiply the interest by 2.
21.25 * 2 = 42.50
Now we add the interest with the amount borrowed.
850 + 42.50 = $892.50
So, the answer is $892.50 in total.
Hope this helps! :)
Some candy bars are on a plate. Each candy bar is the same size. Nine friends are going to share the candy bars equally. Each friend gets one-half a candy bar. How many candy bars are on the plate? Between what two whole numbers does the amount of candy bars shared lie? Show all your mathematical thinking.
Answers
Step-by-step explanation:
How many candy bars are on the plate?
1 and a half multiplied by 9 = 13 and a half
There are 13 and a half/13.5 candy bars are on the plate.
Between what two whole numbers does the amount of candy bars shared lie?
13.5 lies between 13 and 14.
Hope it helps!!!!
A rectangle with area
126
square inches has a length that is four less than two times the width. Find the length and the width of the rectangle.
Answers
Answer:
Step-by-step explanation
width is 9. length is 14
PLEASE HURRY I WILL GIVE BRAINLIEST!!!!!!
Jessie borrowed $15,000 for 15 years to make some improvements to his house. If he repaid a total of 20,625 at what simple interest rate does Jessie borrow the money? A.1.5% B.1.75% C.2.25% D.2.5%
Answers
Answer:
C
Step-by-step explanation:
Answer:
The answer is C, 2.25%
Step-by-step explanation:
Hope it helps!!:)
Last year Tyler used 60 feet of fencing to enclose a rectangular garden with an area of 200 ft². This year Tyler plans to use 120 feet of fencing to enclose a garden similar in shape. What will be the area of the garden?
Answers
Answer:
Area of new garden = 800 ft²
Step-by-step explanation:
Given:
Old fencing = Parameter of old garden = 60 ft
Area of old garden = 200 ft
Find:
Area of new garden if Parameter of new garden is 120 ft
Computation:
Assume;
Length of old garden = l
Width of old garden = b
So,
2[l + b] = 60
l + b = 30
l = 30 - b
Area of old garden = 200 ft
l x b = 200
So,
(30 - b)b = 200
b² - 30b + 200 = 0
b² - 20b - 10b + 200
b(b-20) - 10(b-20)
(b-20)(b-10)
So,
Width of old garden = 10 ft
Length of old garden = 20 ft
New parameter is double
So,
Width of new garden = 10 x 2 = 20 feet
Length of old garden = 20 x 2 = 40 feet
Area of new garden = l x b
Area of new garden = 20 x 40
Area of new garden = 800 ft²
Graph points A(-1, -1), B(-1, 3) and C(3, 2) on the coordinate plane. What is the area of triangle ABC? A) 7 square units B) 8 square units C) 14 square units D) 16 square units
Answers
Answer:
8 square units is the answer
7/9+5/9 as a fraction in simplest form
Answers
Write all numerators above the common denominator
7+5/9
Step 2
Add the numbers
12/9
Step 3
Reduce the fraction with 3
4/3
Your answer should be 4/3
Or 1 1/3 , 1.3
1 3/9 is da answerrr
1. A baseball coach graphs some data and finds the line of
best fit. The equation for the line of best fit is
y = 0.32x - 20.51, where x is the number of times at bat and
y is the number of hits.
How many hits should he expect from a player who is at bat
175 times?
A) 35 hits
B) 49 hits
C) 609 hits
D) 62 hits
Answers
Answer:
It's answer B, 49 hits. I got it right
What is the slope of the line through (–5,2) and (6,7) in the standard (x,y) coordinate plane?
9
9
5
5
-5
-5
5
11
5 over 11
−
5
11
Answers
Step-by-step explanation:
[tex]slope = \frac{\triangle \: y}{\triangle \: x} \\ = \frac{(7 - 2)}{(6 - ( - 5))} \\ = \frac{5}{11} \\ slope = (5 ,11)[/tex]
A man was 62 years old 18 years ago.what Will be his age in 6 years time
Answers
Answer:
Step-by-step explanation:
As the man was 62 years old 18 years ols so first we have to add 18 to 62
=80
So, now we have to find his age after 6 years so we should just simply add 6 to 80
=86
He will be 86 years old.
Hope this helps you :-) :-)
A university law school accepts 7 out of every 12 applicants. If the school accepted 686 students, find how many applications they received.
The school had applicants
Answers
Answer:
1176 applications
Step-by-step explanation:
7:12 accepted:applied
686 = 7
686 / 7 = 98
98 x 12 = 1176
bestieeee- please help
:)
Answers
Answer:
94 cups
Step-by-step explanation:
5 gals = 80 cups; 14 cups + 80 cups = 94 cups
Khan academy again, please help
Answers
Answer:
32
Step-by-step explanation:
lol what it's the same exact question again
6 x 10 = 60
60 - 2 - 6 - 20 = 32
ANSWER FOR BRAINLIEST:
The mean of Tom’s scores on 5 tests was 77.4%. The scores on his first four tests were 88, 77, 70, and 72. What was Tom’s score on his fifth test?
Answers
Answer:
Tom got 80% on his fifth test
10 POINTS!!! NO LINKS!! I WILL REPORT BUT PLEASE SOMEONE HELP ME The table below shows the number of students in four schools with grade
point averages in various ranges. The grade point averages of the students in
which school represent a U-shaped distribution?
Answers
Answer:
School C.
Step-by-step explanation:
The answer is school C. A u-shaped distribution would have to have values that when plotted, make a "u". In this case, the first and last values have to be the highest, the second and fourth values have to be in the "middle" and the third value has to be at the bottom. This is the case for school C.
Answer:
B. School C
Step-by-step explanation:
Having a U-shaped distribution means that the school would have the least number in the middle value/values and the most at the ends.
School C exhibits this trend because it has the most on the outermost ranges (82 for between 1.5 and 2, and 78 for between 3.5 and 4.0), as well as the least number for the middle value (26 for 2.5-3.0
The numbers inbetween also follow the trend, as you can see if you read down the column of school C, the numbers decrease as you get to 2.5-3.0 and increase again to 4.0
Hope this helped!
Someone help me please-
Answers
Answer:
Rectangle 11.59 sqft
Rectangle 36 sqft
Polygon 47.59 sqft
Step-by-step explanation:
(15 point) Which set of ordered pairs are solutions to the equation y = 10x?
Answers
Answer:
Blue, yellow and green.
Step-by-step explanation:
Which set of integers is in order from least to greatest? a. 1, -2, 3, 4, -5. b. -5, 4, 3, -2, 1. c. -2, -5, 1, 3, 4 d. -5, -2, 1, 3, 4.
Answers
Answer:
Step-by-step explanation:
Negative numbers have the least value and (-1) is the greatest negative value
So, d is arranged in least to greatest order
d) -5 , - 2 , 1 , 3 , 4
Answer:
The answer is D.
Step-by-step explanation:
D is the one that has the order from least to greatest.
Help!! I’ll give brainliest!
Answers
Answer:
d
Step-by-step explanation:
stat edit but just use the formula y2-y1/x2-x1
Help help help help help help help
Answers
Answer:
Negative
Positive
Negative
Positive
Step-by-step explanation:
AnswerNegative ,Positive, Negative, Positive
Step-by-step explanation:
91 is 10% of what number?
would i get the answer of : 91 already rounded to the nearest hundredths??? these formulas are confusing me help (using proportions to solve percent)
Answers
what is question a????
Answers
Answer:
0=3 1=5 3=9
Step-by-step explanation:
SOMEONE PLZ HELP ME
Answers
(0, infinity)
I hope it helps
Will mark brainliest
Answers
Answer: A) multiply the input by 6.
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
12÷2=6
36÷6=6
48÷8=6
54÷9=6
72÷12=6
so that means you have to multiply the input by 6.
please help ive been stuck on this all day math help pls
Answers
Answer:
d ... or c
Step-by-step explanation:
HELP.
Which equation is represented by the graph below?
Y=In x-3
Y=In x-4
Y=e^x-3
Y=e^x-4
Answers
can someone help me asap
Answers
Answer:
a) hundreds
b) tens
c) hundreds
d) hundreds
Answer:
This is easy!!
Step-by-step explanation:
1. hundreds
2. tens
3. hundreds
4. hundreds
Hope this Helps!!
I need help I’m kind of stuck on this question
Answers
Answer:
10ft^2
Step-by-step explanation:
16in/4in =4ft for the length
10in/4in= 2.5ft for the width
so 4ft x 2.5ft =10ft^2
so 10ft^2