Answer: x=8 and y=4
Step-by-step explanation:
x+y=12 x=12-y x=12-4
14x+22y=200 x=8
14(12-y)+22y=200
168-14y+22y=200
-168 -168
-14y+22y=32
8y=32
8y/8=32/8
y=4
Help will mark brainlist.
1=
2=
3=
4=
Given this equation of the function f(x)=7x+9. Find f(−2).
Answer:
f(-2) = -5
Step-by-step explanation:
Given
f(x) = 7x + 9
f (-2) = 7 * ( - 2) + 9
= - 14 + 9
= - 5
Pl help it for homwork
Answer:
C) x=2 y=-5
y=7x-19
-2x+3(7x-19)=-19
19x=38
x=2
-2(2)+3y=-19
y=-5
Which equation represents a line with
a slope of 2 and a y-intercept of 4
Step-by-step explanation:
Slope (m) = 2
y - intercept (c) = 4
Now the equation of the line is given by
y = mx + c
y = 2x + 4
Hope it will help :)
Solve for n.
n/4 + 5 = 10
Answers appreciated :)
Ellie bought a pair of jeans on sale for 15% off. If the jeans were originally $35, how much did she save?
Answer:
she saved $5.25
Step-by-step explanation:
Answer: She saved $5.25
Step-by-step explanation: 15% of $35 is $5.25
Multiple Choice The perimeter of a square
is 68 m. If one side is represented by 3x + 2,
what is the value of x?
A 3
B 5
C 4
D 6
E 10
Answer:
The answer is B, 5.
Step-by-step explanation:
3x+2 is per side. A square has 4 sides. 3x+2 times 4 is 12x+8 (using the distributive property).
12x+8 = 68
12x = 60
divide both sides by 12...
60/12 = 5.
Therefore x =5
PLEASEEEE helpppppp !!!! Will mark Brianliest !!!!!!!!!!!!!!
Answer:
A
Step-by-step explanation:
answer B would give you an answer of 23.5... not 23 (bc 47/2 is not 23)
Which equation is a linear function?
y=2^x -1
y=x/2-5
y=2/x +3
y=x^2 +7
Answer:
Second Choice.
Step-by-step explanation:
[tex]y = mx + b[/tex]
That is the linear function. Any coefficients with higher degrees won't be considered as a linear function.
So we can cut out the first and last choice.
Then we have only two choices which are
[tex]y = \frac{x}{2} - 5 \\ y = \frac{2}{x} + 3[/tex]
The second equation is called Rational Function where a variable is a denominator.
Therefore, the correct answer is second choice.
How much are 6 twenty's
Answer:
120
Step-by-step explanation:
Help me with this one pls
The population of wild rabbits, in thousands, in Wisconsin can be modelled by the following equation f(x)=9(1.01)x where x represents the number of years after the scientists started counting. How many wild rabbits, in thousands, will be in Wisconsin in 15 years?
Answer:search that up and find the answer on brainly
Step-by-step explanation:
Cell phone Plan A costs $70 per month and comes with a $100 phone. Cell phone Plan B costs $50 per month and comes with a $200 Phone. How many months is it until the cost for both plans is the same?
Answer:
5 months
Step-by-step explanation:
100+70(5)= 450
200+ 50(5)= 450
Henry wants to see how many different colored crayons are in the crayon box.If there are 4 rows of 19 crayons,how many different colors are there?
Answer:
ons are in the crayon box.If there are 4 rows of 19 crayons,
Step-by-step explanation:
Which expression means 9 less than twice n?
Answer:
9<2n
Step-by-step explanation:
The is answer 9<2n
fgyhujiugytdfyguhijokjohgyiuhojpugjuhiljhjvgijo;jlkbhijlhvjghiovjguhikvkhlkghohgvjyiogiig
Ellie bought a pair of jeans on sale for 15% off. If the jeans were originally $35, how much did she save?
Answer:5.25
Step-by-step explanation:
Your family spends $30 for tickets to an aquarium and $3 per hour for parking. Write an equation that gives the total cost of your family's visit to the aquarium as a function of the number of hours that you are there. Find the total cost of 4 hours at the aquarium
Answer:
Equation: y=$3(x)+$30
Total cost $42
Step-by-step explanation:
Calculation to Find the total cost of 4 hours at the aquarium using this formula
y=mx+b
Where,
y intercept=Total cost
m=$3 per hour
b=$30 Tickets
x=4 hours
Let plug in the formula
First step is to form the equation
y=$3(x)+$30
Second step is to substitute 4 hours for m and b
y=$3(4)+$30
Hence:
y=$12+$30
y=$42
Therefore the equation will be y=$3(x)+$30 while the total cost of 4 hours at the aquarium will be $42
Determine the 16th term in the sequence defined by: A_n = 5–2(n-1)
Answer: 45
Step-by-step explanation:
[tex]a_{n} = 5 - 2(n - 1)\\a_{16} = 5-2 (16-1)\\a_{16} = 5-2 (15)\\a_{16} = 3 (15)\\a_{16} =45[/tex]
Answer:
-25Step-by-step explanation:
aₙ = 5–2(n-1) = 5 - 2n + 2 = 7 - 2nSubstitute n with 16 for the 16th term
a₁₆ = 7 - 2(16) = 7 - 32 = -25HELP ASAPP!! HELP !!
Answer:
4
Step-by-step explanation:
Which expression is equivalent to this one?
Answer:
The answer is 1
Solve for x. -4(-2x - 2) + x - 2 = -48
Answer:
x = -5.7778
Step-by-step explanation:
1) 8x + 8 + x -2 = 48 (You multiply the -4 into both -2x and -2, thus getting rid of the brackets)
2) 9x + 6 = -48 (Add the two values of x (8x + x) and then subtract the 2 from 8 = 6)
3) 9x =-46 - 6 (Move the 6 mover, which will change its sign from a (+) to a (-6))
4) 9x = -52 (Do the expression, and you get -52)
5) x = -52 / 9 (Isolate the x, by dividing both sides by it)
6) x = -5.7778 (Round the answer)
Write the number
five million four thousand three hundred
in standard form
The numbers of bags of crisps sold per day in a general shop was recorded over 13 days.
The results are shown below.
32 45 36 56 45 68 29 48 21 45 32 47 59
In order from smallest to biggest, the results are:
21 39 32 32 36 45 45 45 47 48 56 59 68
The formula for finding out the quartiles didn’t work when I tried it.
I just figured it out so I’ll answer it on this account lol.
Q1 = 32, Q2 = 45, Q3 = 52
Interquartile range = 52 - 32 = 20
Range = 68 - 21 = 47
Lupe's car averages 27 miles per gallon of gas. At that rate, how far would it go on 27 gallons?
Answer
129
Step-by-step explanation:
just multiply 27 by 27... then covert it
Answer:
729 kilometers
hope this helped :-)
Step-by-step explanation:
27x27=729
just multiply 27 by 27 :-)
Carina drinks 96 ounces of water in an 8-hour workday. Which expression can be used to calculate the number of ounces of water that Carina drinks each hour?
A. 96/8
B. 8/96
C. 96x8
D.96+ 8
PLEASE HELP
Answer:
A
Step-by-step explanation:
.
A bike race requires entrants to submit their best times before the race in order to qualify to participate. Bikers must be able to complete the 50-mile course in 2 hours or less.
Which of these times qualify for the race, assuming each biker rides at a constant rate? Choose the three correct answers.
1.Maria rode 75 miles in 2 hours and 45 minutes.
2.Travis rode 36 miles in 1 hour and 20 minutes.
3.Trish rode 63 miles in 3 hours.
4.Crystal rode 24 miles in 56 minutes.
5Carl rode 22 miles in 1 hour.
Answer:
1, 2, 5!
Step-by-step explanation:
1. Maria rode 75 miles in 2 hours and 45 minutes.
2. Travis rode 36 miles in 1 hour and 20 minutes.
5. Carl rode 22 miles in 1 hour.
hope this helps!!!!!!
plz mark brainliest!
answer the whole question
Which of the following lists is ordered from least to greatest?
-5, 0, 0.8, 1, 1
-3, -5, 0, 0.8, 1
-5, 0, 0.8, 1, 1
1, 0.8, , 0, -5
plz hurry and answer this
Answer:
-5,0,0.8,1,1 is the answer
using the graphs below, identify which value of r, the correlation coefficient, best describes the graph
Answer:
You make no sense
Step-by-step explanation:
Answer:
THERE IS NOT A GRAPH
Step-by-step explanation:
Evaluate:
(15 +12) -3² = ?
Answer:
The answer is 8 I think. Hope this helps