Answer:
Cost of Hats = $15
Cost of Scarves = $8
Step-by-step explanation:
Let
Cost of Hats = x
Cost of Scarves = y
5x + 3y = 99 (1)
3x + 5y = 85 (2)
Multiply (1) by 5 and (2) by 3
25x + 15y = 495
9x + 15y = 255
Subtract
25x - 9x = 495 - 255
16x = 240
Divide both sides by 16
x = 240 / 16
= 15
x = $15
Substitute x = 15 into
5x + 3y = 99
5(15) + 3y = 99
75 + 3y = 99
3y = 99 - 75
3y = 24
y = 24/3
= 8
y = 8
Cost of Hats = $15
Cost of Scarves = $8
Which input value produces the same output value for
the two functions?
O x= -12
O x= -9
O x= -6
O X=-3
HELP PLEASE
Answer
-6
Step-by-step explanation:
Took test
can someone help me please?
Answer:
(0,4) and (-4,0)
Step-by-step explanation:
(24 = 3) + 3 + 33
Your answer
A circle is graphed on a coordinate grid. Its center is at (3, 4), and the circle passes through point (3, 1). What is the approximate area, in square units, of the circle? (Use 3.14 for π.)
Answer:
it is either 18.84 or 31.40
Step-by-step explanation:
just do it in your head
The area of the circle is 28.26 square units
The center of the circle is given as:
[tex](a,b) = (3,4)[/tex]The circle passes through the following point
[tex](x,y) = (3,1)[/tex]Start by calculating the radius using the following distance formula
[tex]r = \sqrt{(x -a)^2 + (y - b)^2}[/tex]
So, we have:
[tex]r = \sqrt{(3 -3)^2 + (4 - 1)^2}[/tex]
[tex]r = \sqrt{9}[/tex]
Square both sides
[tex]r^2 = 9[/tex]
The area of the circle is then calculated as:
[tex]Area = \pi r^2[/tex]So, we have:
[tex]Area = 3.14 \times 9[/tex]
[tex]Area = 28.26[/tex]
Hence, the area of the circle is 28.26 square units
Read more about areas at:
https://brainly.com/question/15673093
A high school is designing a new football field. The field is 125 meters long, including the end zones. If 1 meter = 3.2 feet, how long, in feet is the length of the football field?
Group of answer choices
A: 200 ft
B: 400 ft
C: 40 ft
D: 80 ft
1. through (0,-1) slope= -1
2. through (-5,4) slope= -2
I don't know how to solve them I need help ASAP!
Answer:
Step-by-step explanation:
I will give you equations in slope intercept form
1.
y=-x-1
2.
y= -2x - 6
Three friends eat lunch together. the bill comes to $21 plus 10% tax. If they split the bill and tax evenly, then how much will each person owe?
Answer:
i think they'll owe $7.7...if it's wrong i'm sorry !
Step-by-step explanation:
i added $21 plus 10% then divided by 3 and got 7.7 .
The disks of polish kielbasa measure to be 1/4 of a inch. If there are 36 disks altogether, what is the total length of polish keilbasa being using? White a number sentence to go with your answer. Write it in the simples form
Answer:
9 inches
Step-by-step explanation:
The disks of polish kielbasa measure to be 1/4 of a inch. If there are 36 disks altogether, what is the total length of polish keilbasa being using?
The total length of polish kielbasa is calculated as:
1/4 of 36 disks
= 1/4 × 36 disks
= 9 inches
The total length of polish keilbasa being used is 9 inches
Julie went to the 10%
off store and bought 3
candy bars for $1.30 each,
a loaf of bread for $2.90,
and 2 cases of Dr. Pepper
for $6.50 each. How
much will she save with
the 10% discount?
HELLP pls answer my other questions
Answer:
1.98 i think
Step-by-step explanation:
you add everything, divide by 10.
In the diagram at right, which letter, with regards to W, is the angle of depression?
Answer:
c
Step-by-step explanation: i think
Write the expanded form of the expression.
3(4x - 6)
Answer:
12x-18
Step-by-step explanation:
expanded expression 3⋅x⋅2⋅x+3⋅x⋅4+2⋅x+4
expanded and reduced expression 4+14⋅x+6⋅x
which of the following methods can be used to determine if a relation is a function?? Select all that apply.
A. Write out the relation in an x-y table and check that each x-value corresponds to the only one y - value.
B. Write out the relation in an x-y table and check that each x-value corresponds to the only one x - value
C. Graph the relation on a coordinate plane and check that it passes the vertical line test.
D. Graph the relation on a coordinate plane and check that it passes the horizontal line test.
Answer:
B) Write out the relation in an x-y table and check that each x-value corresponds to the only one x - value
Which is an equation?
Answer:
c
Step-by-step explanation:
because it has an equal sign
Answer:
C
Step-by-step explanation: becuase it has an equal sign
I need the answer pls it is due in 10 minutes
Answer:
she never brought her cost up when they got another cup cake it should
x y
1 3.50
2 7
3 10.50
4 14
i ant really graph them
Step-by-step explanation:
What’s 3+2? Sorry ;)
Carla and Rob left a 15% tip after having lunch at a restaurant. The amount of the tip was $3. Carla’s lunch cost $12. Write an equation you can use to find x, the cost of Rob’s lunch.
Answer:
0.15(x + 12) = 3
Step-by-step explanation:
The cost of the lunch before the tip was 12 + x
The tip is 15% of the cost of lunch: 0.15(x + 12)
The tip was $3
0.15(x + 12) = 3
How do you solve for X?
Answer:
<L+<M+<N=180
<NLM and <XLN are supplementary meaning their angle measure add to 180.
therefore,44+46+L=180
90+L=180
l=90
If l=90 then the <NLX is also 90 since they are supplementary angles
therefore, 3x+42=90
3x=48
x=16
Step-by-step explanation:
Prove that the square root of 8+ the Square root of 2 = 3 • 2 1/2
it's a two step equation
Answer: -15=x
Step-by-step explanation: subtract 10 on each side then divide -5 on both sides to isolate the variable
-5x=+10-85
5x=-75
x=-75/5=> x= -15
A plumber charges a one-time fee of $50 plus a fixed hourly rate (h) in dollars. The plumber works at a customer's house for 2 hours and charges a total of $100. Find the hourly rate the plumber charges.
Answer:
$25 an hour
Step-by-step explanation:
use this equation y = hx + 50
y is the money earned and x is the hours worked
plug in 100 for y and 2 for x
100 = 2h + 50
solve for h
50 = 2h
25 = h
he charges $25 an hour
Factor the following expression: x^2+3x
What point is on both lines y=12x+3 and y=x+1
(no graph)
Step-by-step explanation:
by having two equations that have the same point, you can set the two equations equal to each other
y = 12x + 3, y = x + 1
12x + 3 = x + 1
11x = -2
x = -2/11
when you find the the x value, plug it back into either one of the equations
y = x + 1
y = (-2/11) + 1
y = 11/11 - 2/11
y = 9/11
the point (solution):
(-2/11, 9/11)
Answer:
(-2|11, 9|11)
Step-by-step explanation:
hope it helps
Which is an equation for the line that contains (-1, -2) and has a slope of -5?
What is the value of y in the solution to the system of equations?
One-thirdx + One-fourthy = 1
2x – 3y = –30
Answer:
y-value = 8
Step-by-step explanation:
1/3x + 1/4y = 1 is the same as 4/12x + 3/12y = 1
which is the same as (4x + 3y)/12 = 1
which is the same as 4x + 3y = 12
add both equations and the 'y' will cancel and you will have 6x = -18
x = -3
2(-3) - 3y = -30
-6 - 3y = -30
-3y = -24
y = 8
Answer:8
Step-by-step explanation:
An oil well pumps 20 gallons of oil every minute. How long will it
take for the well to pump 100 gallons of oil?
Answer:
It will take 5 minutes to pump 100 gallons of oil
Identify the angle pair from the diagram above: <2 and <7
Answer:
2 and 7 are alternate exterior anglesStep-by-step explanation:
Alternate exterior angles are angles that are on different sides of the transversal and on the outside of the parallel lines. There is a theorem that says that alternate exterior angles are congruent if two parallel lines are cut by a transversal.
Use the coordinate grid to determine the coordinates of point P:
What are the coordinates of point P?
Answer:
The coordinates are (1.4, -0.8)
if Mr Green drives 100 miles in 2 hours. he continues to drive at the same speed if he doesn't stop how long will it take mr green to drive 400 miles
Answer:
8 hours
Step-by-step explanation:
1 - 50 miles
2 - 100 miles
3 - 150 miles
4 - 200 miles
5 - 250 miles
6 - 300 miles
7 - 350 miles
8 - 400 miles
and so on hope this helps
Find the equation for the line that passes through
(1,6)that has slope −2 . Give your answer in point-slope form. You do not need to simplify.
pls hurry I need help I will give brainliest
Answer: answer in pic
Step-by-step explanation:
ASAP GUYS PLEASE (and girls)
Answer:
its B its like the only one that makes sence