Answer:
28
Step-by-step explanation:
4/ 1/7 = 4 x 7/1 = 4 x 7 = 28
Melina's Girl Scout troop of 12 members takes a trip to the local bowling alley. Each girl pays a lane fee at the bowling alley and an additional $5 to rent a pair of bowling shoes. The total cost for all 12 members of her Girl Scout troop to use the bowling lanes and rent shoes is $138. Write an equation that represents the lane fee at the bowling alley.
Answer:
138 divited by 12. Then 11.50 X 5= 57.50
Step-by-step explanation:
I need help please
1) The number of fish in a pond can be modeled by the function f(t)=1200(0.85)^t, where t is the number of years. Which of the following is true?
A. The fish population increases by 85% each year.
B. The fish population decreases by 85% each year.
C. The fish population decreases by 15% each year.
D. The fish population increases by 15% each year.
help solve, thank you much yall
Answer:
A
Step-by-step explanation:
it's absolute value so it should be A
For breakfast, Tyrell can choose from scrambled eggs or an omelette, bacon or sausage and orange juice or milk. How many different outcomes are possible
Answer:
Step-by-step explanation:
Help me please and thank you! its due and this is the last question...
Math homework dfmtikjekrjtkttotyy
The quantity of 7 less than x, multiplied by 4
Answer:
Step-by-step explanation:To answer your question, the first number 9/8 has the reciprocal 8/9.
Find the quotient. Use a model to explain your answer
1/6 divided by 3 = ?
Answer:
1/18
Step-by-step explanation:
(1/6)/(3/1)
flip the 3 and the one and multiply
=(1/6)(1/3)
1(1)=1
6(3)=18
This my last question my bad guys and I appreciate everybody that’s been helping me out!!!❤️
Answer:
quadrant 3
Step-by-step explanation:
Cuz x and y are in the negative if they’re both less than 0
Answer:
They answer is Quadrant 3 .Step-by-step explanation:
"<" means that it is less than "__" . X < 0 means the X value would be a negative . Y < 0 also means the same . This shows that the value of both X and Y are negatives . So the only place they belong is Quadrant 3 .
Which of the following is equivalent to 2 2/5 ?
1 7/5
1 12/5
1 6/5
1 9/5
i choose 1 7/5 is this correct?
Answer:12/5 is correct.
Step-by-step explanation:
2 5ths is 10, add 2 it's 12. sorry for the bad explanation lol, btw nice pfp
URGENT HELP
I don’t understand the question can someone please explain how to get answer
difference is 33
Step-by-step explanation:
100 - 40% = 60 + 7% = 67 + 300 = 367
400 - 367 = 33
Answer: I might well as think the answer is 10.220
First right equals brainliest, Pls dont answer for the points this is serious. I just need this and 3 more which I will ask later. Anyway I am making this worth more points because I need help:)
I can't see the picture, can you please explain the problem in the comment bar below this so can edit my answer to help?
The angles below form a linear pair. What is the measure of angle ABC?
Write a summary of the poem "Revenge"
Plz Help!!! Due un 5 minutes! I will give brainliest!!
Answer:
1.11 2.40
Step-by-step explanation:
Answer:
1- around 11
(Thats all i could answer)
Step-by-step explanation:
Subtract 406-278= 128 ÷ 12= approximately 11
Two schools are 646 meters from each other. On a map, the two schools are 8.5 centimeters apart.
What scale is the map using?
Answer:
5,491
step-step explanation:
multiply 646x8.5
Answer:
1 cm = 76 meters
Step-by-step explanation:
[tex]\frac{646m}{8.5cm} =\frac{x}{1cm}[/tex]
Find x.
x = 76m
1cm = 76meters
good luck, i hope this helps :)
helppppppppppppppppppppp
Answer:
it should be 2.28
Step-by-step explanation:
srry if wrong
Giving brainliest!!!!!!!!!!!!
Answer:
D
Step-by-step explanation:
there are data values from 17-26
so D
Find the area of the polygon, the vertices are (1,4) (2,1) (4,1) (5,4)
Answer:
Hello
Step-by-step explanation:
I dont know how to solve this
MUST ANSWER BOTH QUESTIONS FROM ATTACHMENT.
WILL GIVE BRAINLEST
IM ON A TIME LIMIT BY THE WAY
Answer:
Pheonix Lights, MIddle 3 for the 2nd question.
Step-by-step explanation:
Please help me, smart people
sincerely,
-not smart person
How many times do you need to multiply by ten to get from 0.35 to 35?
Answer:
2 times
Step-by-step explanation:
0.35×10×10=35
hope i am right?
Can someone plz help me I’m being timed!!!
Answer:
on the x axis
Step-by-step explanation:
on the x axis
For a loan of $40,000 at 12% for 10 years, how much do you wind up paying back?
80,000
48,000
88,000
8,000
Answer:
$88,000
Step-by-step explanation:
40,000*.12= 4,800
4,800*10= 48,000
40,000+48,000= 88,000
some please hepl and do it right pls
Answer:
7109.76m2
plz mark brainliest
If right mark brainlest I wanna pass please ' '
0 0
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Louis wants to carpet the rectangular floor of his basement. The basement has an area of 2,880 square feet. The width of the basement is
4
5
its length.What is the length of Louis's basement?? Please help! i gotta turn this in TODAY!
Answer: the length is 64
Step-by-step explanation: 2880 divided by 45 is 64
Answer:
64
Step-by-step explanation:
64
For every 2 cars you wash, your friend washes 3 cars. You wash a total of 8 cars. Complete the table to show the number of cars your friend washes.
Answer:
If you wash eight your friend would’ve washed 12 2:3 as 8:12
Step-by-step explanation:
How do you find the equation of each function? Function A is f(x)=3x^2 and Function C is f(x)=18x-16. How do you get those? And then how do you get the equation for Function B? Thanks!
Answer:
[tex]f(x) = 3^x[/tex] --- Function A
[tex]f(x) = x^2 - 5[/tex] --- Function B
[tex]f(x) = 18x -6[/tex] --- Function C
Step-by-step explanation:
Solving (a): Equation of Function A
An exponential equation is represented as:
[tex]y = ab^x[/tex]
From the graph of function A,
[tex]x = 0\ when\ y = 1[/tex]
[tex]x = 1\ when\ y = 3[/tex]
For: [tex]x = 0\ when\ y = 1[/tex]
[tex]y = ab^x[/tex] becomes
[tex]1 = ab^0[/tex]
[tex]1 = a[/tex]
[tex]a =1[/tex]
For: [tex]x = 1\ when\ y = 3[/tex]
[tex]y = ab^x[/tex] becomes
[tex]3 = a*b^1[/tex]
[tex]3 = a*b[/tex]
Substitute 1 for a
[tex]3 = 1*b[/tex]
[tex]3 = b[/tex]
[tex]b = 3[/tex]
[tex]y = ab^x[/tex] becomes
[tex]y = 1*3^x[/tex]
[tex]y = 3^x[/tex]
Replace y with f(x)
[tex]f(x) = 3^x[/tex]
Solving (b): Equation of Function B
A quadratic equation is represented as:
[tex]y = ax^2 + bx + c[/tex]
From the table of function B,
[tex]x = 3\ when\ y =4[/tex]
[tex]x = 5\ when\ y =20[/tex]
[tex]x = 6\ when\ y =31[/tex]
For: [tex]x = 3\ when\ y =4[/tex]
[tex]y = ax^2 + bx + c[/tex] becomes
[tex]4 = a*3^2 + b*3 + c[/tex]
[tex]4 = a*9 + 3b + c[/tex]
[tex]4 = 9a + 3b + c[/tex]
For [tex]x = 5\ when\ y =20[/tex]
[tex]y = ax^2 + bx + c[/tex] becomes
[tex]20 = a*5^2 + b*5 + c[/tex]
[tex]20 = a*25 + b*5 + c[/tex]
[tex]20 = 25a + 5b + c[/tex]
For [tex]x = 6\ when\ y =31[/tex]
[tex]y = ax^2 + bx + c[/tex] becomes
[tex]31 = a*6^2 + b*6 + c[/tex]
[tex]31 = a*36 + b*6 + c[/tex]
[tex]31 = 36a + 6b + c[/tex]
So, we solve for a, b and c in:
[tex]4 = 9a + 3b + c[/tex]
[tex]20 = 25a + 5b + c[/tex]
[tex]31 = 36a + 6b + c[/tex]
Make c the subject in [tex]4 = 9a + 3b + c[/tex]
[tex]c = 4 - 9a - 3b[/tex]
Substitute [tex]c = 4 - 9a - 3b[/tex] in [tex]20 = 25a + 5b + c[/tex] and [tex]31 = 36a + 6b + c[/tex]
[tex]20 = 25a + 5b + c[/tex] becomes
[tex]20 = 25a + 5b + 4-9a-3b[/tex]
Collect Like Terms
[tex]-4+20 = 25a -9a+ 5b -3b[/tex]
[tex]16 = 16a+ 2b[/tex]
Divide through by 2
[tex]8 = 8a + b[/tex]
[tex]c = 4 - 9a - 3b[/tex]
[tex]31 = 36a + 6b + c[/tex] becomes
[tex]31 = 36a + 6b + 4 - 9a - 3b[/tex]
Collect Like Terms
[tex]-4+31 = 36a - 9a+ 6b - 3b[/tex]
[tex]27 = 27a+ 3b[/tex]
Divide through by 3
[tex]9 = 9a + b[/tex]
Solve for a and b in: [tex]8 = 8a + b[/tex] and [tex]9 = 9a + b[/tex]
Subtract both equations:
[tex]8 - 9 = 8a - 9a + b - b[/tex]
[tex]8 - 9 = 8a - 9a[/tex]
[tex]-1 = -a[/tex]
Divide both sides by -1
[tex]1 = a[/tex]
[tex]a = 1[/tex]
Substitute 1 for a in [tex]9 = 9a + b[/tex]
[tex]9 = 9*1 + b[/tex]
[tex]9 = 9 +b[/tex]
Subtract 9 from both sides
[tex]9-9=9-9+b[/tex]
[tex]0=b[/tex]
[tex]b = 0[/tex]
Substitute [tex]b = 0[/tex] and [tex]a = 1[/tex] in [tex]c = 4 - 9a - 3b[/tex]
[tex]c = 4 - 9*1-3*0[/tex]
[tex]c = 4 - 9-0[/tex]
[tex]c = -5[/tex]
So, the equation is:
[tex]y = ax^2 + bx + c[/tex]
[tex]y=1*x^2 +0*x-5[/tex]
[tex]y=x^2 -5[/tex]
Replace y with f(x)
[tex]f(x) = x^2 - 5[/tex]
Solving (c): Equation of Function C
This is calculated using:
[tex]f(x) =a + (x -1)d[/tex]
Where
[tex]a = 12[/tex] -- the first term
d = the difference between successive terms
[tex]d = 30 -12 = 48-30 = 66 -48[/tex]
[tex]d =18[/tex]
So, we have:
[tex]f(x) =a + (x -1)d[/tex]
[tex]f(x) = 12 + (x - 1)*18[/tex]
Open bracket
[tex]f(x) = 12 + 18x - 18[/tex]
Collect Like Terms
[tex]f(x) = 18x - 18+12[/tex]
[tex]f(x) = 18x -6[/tex]