Answer:
x = 3
y = 6
Step-by-step explanation:
-4x- y = -18
2x + 3y = 24 (Multiply everything by 2)
-4x - y = -18
4x + 6y = 48
5y = 30
y = 6
-4x- y = -18
-4x - 6 = -18
-4x = -12
x = 3
What is the solution to the system of linear equations graphed here?
A (2,-1)
B (-1,2)
C (2,1)
D) No Solution
Answer:
One solution, A) (2 , -1)
Step-by-step explanation:
The solution is where the two lines intersect. If the lines do not intersect, it is no solution. If the line intersects once (like in the picture), it has one solution. If it intersects more than once (x), then it will have x amount of solutions.
In this case, the intersection is at (2 , -1), therefore, A) (2 , -1) is your answer.
~
Tommy's salary increases by 4% each year. This year, Tommy's salaray was $42,250. How much will her salary be in 7 years?
**Simplify ALL of the way and round to the NEAREST whole number**
Answer:
$295,750
Step-by-step explanation:
Given
Tommy's salary increases by 4% each year.
Increase to 4%
1 year = $42,250
7 years = $?
To find
So if 1 year is $42,250, then to find 7 years, you multiply the given by what you are trying to find.
Set up.
1/42250 x 7/x =
295,750
Therefore, Tommy's salary be in $295,750 7 years.
What is -4.4+(-4.32)
Answer:
-8.72
Step-by-step explanation:
A farmer raises chickens and cows. There are 34 animals in all. The farmer counts 110 legs on the animals. How many cows and how many chickens does the farmer have?
Answer:
13 chickens and 21 cows
Step-by-step explanation:
Triangle CDE is similar to triangle FGH. Find the measure of side HF. Round your
answer to the nearest tenth if necessary.
E
H
32
C
D
17.7
F
G
58
Answer:
104.9 units
Step-by-step explanation:
using the polygon similarity postulate (PSP), 32/x=17.7/58
32/x=17.7/58
58*32=17.7x
1856=17.7x
x=104.858757062
round answer to the nearest tenth
x=104.9 units
Write the equation of the line in fully simplified slope-intercept form.
11
10
8
7
6
5
4
-12-11-10-9-8-7 -6 -5 -4 -3 -2 -1
1 2 3 4 5 6 7 8 9 10 11 12
-2
4
-9
-10
-11
-12
Answer:
x intercept [a]=3
y intercept [b]=-5
we have
equation of a line is:
x/a+y/b=1
x/3+y/-5=1
(5x-3y)=15
5x-3y-15=0 is a required equation
what is the surface area of the triangular prism shown
Timia needs so cash in a hurry she owns her car outright and is considering a title loan. The lender told timia she could borrow 1750 for 1 month
The question is incomplete ; the fee which Timia would pay isn't given. And this is needed to compute the APR on the loan.
I would assume that the fee which Timia would pay as interest on the 1 - month loan is x
Answer:
r = x / 145.83333
Step-by-step explanation:
If interest paid, I = x
Principal, P = $1750
And period (time) of loan = 1 month = (1/12) = 0.0833333
Rate = r
Using the simple interest formula :
Interest = Principal * rate * time
x = 1750 * r * 0.833333
Make r the subject :
x = 145.83333r
Divide both sides by 145.83333
Hence, the rate value , r becomes :
r = x / 145.83333
Therefore, the student can just input the appropriate, interest value in place of x and obtain the correct and exact answer (I do not want to use an hypothetical value for x) .
Mrs. Hales then tells Kyle to write an equation showing that the volume, V, of each of his prisms is equal to l × w × h
Kindly check the complete version of the question on the picture attached below :
Answer:
B.) 4 * 3 * 3
Step-by-step explanation:
Unit volume of cube = 48 unit³
Using the volume relation :
Volume = Length * width * height
V = l * w * h
To obtain the odd representation, we calculate the volume of the dimensions given in the option and select the option which does not yield a volume of 48 unit³
A.) 8 * 2 * 3 = 48 unit³
B.) 4 * 3 * 3 = 36 unit³
C.) 6 * 2 * 4 = 48 unit³
D.) 3 * 2 * 8 = 48 unit³
Hence, prism with dimension 4 * 3 * 3 cannot be one of Kyle's prism
which choice is equivalent to the expression below? (-2)^-3
A) 1/6
B) 8
C) -1/8
D) 6
Answer:
C
Step-by-step explanation:
I used a calculator I honestly couldn't figure out the math behind that
Please Help. I dont understand
Answer:
a) y=|(1\2)x-2| + 4
b)y=|(1/2)x-2|+2
c)y=|(1/2)x-1|+3
d)y=|(1/2)x-3|+3
Step-by-step explanation:
Translating up and down is done outside of the absolute value and is intuitive in that up is added to the original value and down is negative. Left and right is shown within the absolute value and is the opposite of what you would think it to be in that left is added and right is subtracted.
A bicycle store costs $2800 per month to operate. The store pays an average of $50 per bike. The average selling price of each bicycle is $90. How many bicycles
must the store sell each month to break even?
The store must sell bicycles each month to break even.
(Type a whole number.)
Answer:
70 Bikes
Step-by-step explanation:
[using b as a variable for bikes]
2800=-50b+90b
[2800 is total cost of store with-50 being cost per bike and 90 being selling point of bike]
2800=40b [simplified by combining -50 with 90]
70=b [divided 2800 by 40 to get the break even for the store]
What do the graphs of these two functions have
in common?
(picture included)
WHOOP HELP THANK U MUAH
Answer:
C. 1
Step-by-step explanation:
Line is passing through the points (-2, 1) & has a slope 2.
Therefore, by point slope form of equation of line:
y - [1] =[2](x - [-2])
Zoom In to see I need help
Answer:
The answer it probably is C.
Step-by-step explanation:
Just add 16+16+16= 48. Hope this helps
Answer:
The answer is C... 16 units.
Step-by-step explanation:
I had this question on my test and got it correct.
GUYS I'M FAILING AND IM GONNA GET IN SO MUCH TROUBLE how sobi convince a teacher to let me do my old assignments that are locked
Answer:
just be like im really trying to work on getting my grades up i fell off a little bit bc of some stuff at home and im busy sometimes but im serious about my work and it would mean the world to me if you could let me redo some assignents that i failed or that are locked i want my parents to be proud of me for once, thanks (they name)
Step-by-step explanation:
I need help finding the answer!
Answer: x=4
Step-by-step explanation:
Since this is a rectangle we already know that all the angles are 90, so we can do this:
46+10x+4=90
50+10x=90
10x=40
x=4
I am confused on this, I would LOVEE some help please!
Answer:
2nd and 5th one are correct. Rest of them r wrong
Step-by-step explanation:
A professional tennis player has a serve-return rate of p = 0.71. A random sample of 55 serve returns is selected. Which of the following is the mean of the sampling distribution of p hat ?
Mu Subscript p hat Baseline = p = 0.71
Mu Subscript p hat Baseline = n p = 55 (0.71) = 39.05
Mu Subscript p hat Baseline = 1 minus p = 1 minus 0.71 = 0.29
Mu Subscript p hat Baseline = n (1 minus p) = 55 (1 minus 0.71) = 15.95
Answer:
I would say A is the answer
Find tan A for the triangle below.
Answer:
Hola Amigo mate!
The answer is
Tan A= 0.667Here's the step by step explanation:-So, here tan A means opposite side divided by the adjacent side.
TAN A= [tex]\frac{Opposite}{adjacent}[/tex]
Opposite of side A is 10cm and its adjacent side is 15cm!
So, TAN A IS:- [tex]\frac{10}{15}[/tex]
Tan A= 0.667
A circular spinner is dividing into 9 equal parts numbered 1-9. What is the probability of spinning a
number less than 8 or a divisor of 15?
Answer:
7/9
Step-by-step explanation:
Answer:
7/9
Step-by-step explanation:
It I correct !!
Help pls
Mitchell went on a shopping trip to Kensington. He purchased a pair of headphones originally
priced at $50 but discounted 60%. If sales tax in Kensington is 15%, what was the total cost?
The percentage is calculated by dividing the required value by the total value and multiplying by 100.
Required percentage value = a
total value = b
Percentage = a/b x 100
The total cost of the pair of headphones is $23.
What is a percentage?The percentage is calculated by dividing the required value by the total value and multiplying by 100.
Example:
Required percentage value = a
total value = b
Percentage = a/b x 100
Example:
50% = 50/200 = 1/2
25% = 25/100 = 1/4
20% = 20/100 = 1/5
105 = 10/100 = 1/10
We have,
Original price of the headphones = $50
60% of $50
= 60/100 x 50
= $30
The price of the headphones after the discount.
= $50 - $20
= $20
The amount of sales tax.
= 15% of $20
= 15/100 x 20
= $3
The total cost.
= $20 + $3
= $23
Thus,
The total cost of the pair of headphones is $23.
Learn more about percentages here:
https://brainly.com/question/11403063
#SPJ2
what is 75 in standard notation?
Answer:
I think you meant scientific notation because 75 in standard notation is 75 and also the answer is 7.5 x 10 and a 1 exponent.
Step-by-step explanation:
hope this helps
Need the answer real quick
Answer:
1. x+y=20,000
2. 105x+75y=$1,740,000
Step-by-step explanation:
let x be the stage level seats and y be the higher level seats.
In which expression is the number 3 expressed as the coefficient of a variable
Answer:
the second one that is 3y+1
determine the value of k if g(x) =4x+k is a tangent to f(x)= -x² +8x +20
Answer:
22
Step-by-step explanation:
222
The value of k in the given functions is; 24
What is the value of the function to the tangent?
We are given the functions;
g(x) = 4x + k as a tangent to f(x) = -x² +8x +20
For f(x) = -x² +8x +20
=> f'(x) = -2x + 8
Thus, slope of tangent at ( x , y) = -2x + 8
For g(x) = 4x + k
g'(x) = 4.
Thus, slope is 4
Therefore;
-2x + 8 = 4
-2x = -4
x = 2
Putting 2 for x in f(x) gives;
f(2) = -2² + 8(2) + 20
f(2) = 32
Thus, it is at (2 , 32)
Thus, (2 , 32) lies on g(x) = 4x + k
4(2) + k = 32
k = 32 - 8
k = 24
Read more about slope of tangent at; https://brainly.com/question/6353432
There are 10 students in a class: 7 boys and 3 girls.
If the teacher nicks a group of 4 at random, what is the probability that everyone in the group is a boy?
Answer:
Total number of students = 10
Probability that all 4 in the group are boys =
[tex] \frac{4}{10} \\ = 0.4[/tex]
I BEG SOMEONE TO JUST PLS HELP :( and if u wanna answer more questions related ill give u like 100 pts at the end i need this
Answer:
Step-by-step explanation:
this question is not worth 5 pts and you are a scam so get scamed
Use the Pythagorean theorem to find the unknown side of the right triangle.
Hypotenuse length_____
Answer: If you use a^2+b^2=c^2 formula you should get your answer of 39
Step-by-step explanation:
Classify the scenarios based on whether they are observational studies, experimentsor surveys. Scenarlo A: Twenty employees of a company are randomly selected and asked if they would like the company to revise the existing dress code Scenarlo B: Analysts at an energy research compare the frequency of power outages caused by snowfall in different states over the past decade. Scenarlo To determine and compare the accuracles of pedometer X and pedometer Y researchers randomly ask Consumers to use one of the two pedometers and then analyze the results. D: At a coffee shop, ten customers are randomly selected each day and asked how many times a week they visit the shop.
Answer:
Scenario A: Survey
Scenario B: Observational Studies
Scenario C: Experiment
Scenario D: Survey
If it not the answer you can correct me
