Answer:
29=6
Step-by-step explanation:
follow BODMAS in mathematics
You are at a festival and notice a lady is making winter wear by knitting. She sells five hats and three scarves for a total cost of $99 while three hats and five scarves cost $85. What is the cost of one hat and one scarf
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
please help me answer my question
A 13ft ladder is leaning against a wall when its base starts ti slide away from the wall. By the time its base is 12 feet from the wall, the base is moving at the rate of 5ft/sec. How fast is the top of the ladder sliding down the wall?
Given :
A 13ft ladder is leaning against a wall when its base starts ti slide away from the wall.
By the time its base is 12 feet from the wall, the base is moving at the rate of 5ft/sec.
To Find :
How fast is the top of the ladder sliding down the wall.
Solution :
By, Pythagoras theorem, distance of ladder from horizontal to wall is 5 feet.
Now, [tex]x^2 + y^2 = 13^2[/tex]
Differentiating both sides, we get :
[tex]2x\dfrac{dx}{dt}+2y\dfrac{dy}{dt}=0\\\\(2\times 12\times 5) + (2\times 5 \times \dfrac{dy}{dt})=0\\\\\dfrac{dy}{dt}= -12 \ feet/sec[/tex]
What is the value of x in this equation?
5x - 2(2x- 1) = 6
OA. 3
O B. 4
O C. 7
O D. 8
Answer:
C
Step-by-step explanation:
Answer:
B. 4
Step-by-step explanation:
5x - 2(2x-1) = 6 Distribute first the 2 to (2x-1)
5x - 4x + 2 = 6 Subtract 5x - 4x
x + 2 = 6 Transpose 2 to the right side by subtracting both side by 2
x = 6 -2
x = 4
Express 2 19/250 as decimals.pls fast
2.076
2+19/250= 2.076
Which system of equations is represented by this graph?
y= _ x+3
y= _ x-3
The system of equations represented by the graph are
y = 2x + 3 and y = (-1/2)x - 3
What is an equation of a line?The equation of a line is given by:
y = mx + c
where m is the slope of the line and c is the y-intercept.
Example:
The slope of the line y = 2x + 3 is 2.
The slope of a line that passes through (1, 2) and (2, 3) is 1.
We have,
The equation of one line on the graph.
y = mx + c
Select two coordinates from the line.
(0, 3) and (-3, -3)
m = (-3 - 3) / -3 = -6/-3 = 2
(0, 3) = (x, y)
3 = 0 + c
c = 3
The equation of the line is y = 2x + 3
The equation of the other line on the graph.
y = mx + c
Select two coordinates from the line.
(0, -3) and (2, -4)
m = (-4 + 3) / 2 = -1/2 = -1/2
(0, -3) = (x, y)
-3 = 0 + c
c = -3
The equation of the line is y = (-1/2)x - 3
Thus,
y = 2x + 3 and y = (-1/2)x - 3 are the system of equations.
Learn more about equation of a line here:
https://brainly.com/question/23087740
#SPJ2
One letter was selected at random from words SAN ANTONIO what is the probability that the selected letter was either an A or an N?
Answer:
the posibility for both of these answers are 5/10 or a 5 in ten chance that it would be a or n because in this there is 5 or these letters
Step-by-step explanation:
563/84 show how u solved
Answer:
u just have to divide
put the numbers in a calculator and the answer is 6.70238095238
Step-by-step explanation:
hope this helps
Answer:
you can't divide it
if u do then its
6.70238095238095238095.............................
6 r 59
Step-by-step explanation:
ok ok um so
multiples of 84:
84
168
252
336
420
504
588
we take 504
563-504 = 59
504/84 = 6
so 6 r 59
Please help the question is in the photo
Answer:
SSS or SAS
Step-by-step explanation:
Dylan was given a gift card for a coffee shop. Each morning, Dylan uses the card to
buy one cup of coffee. Let A represent the amount money remaining on the card after
buying x cups of coffee. A graph of A is shown below. Write an equation for A then
state the x-intercept of the graph and determine its interpretation in the context of
the problem.
Answer:A=15
x intercept= 6
Step-by-step explanation:
Answer:
The x-intercept of the function is 4 which represents the total number of cups of coffee purchased from the card.
Step-by-step explanation:
Since there was $0 left on the card after buying 4 cups of coffee, the x-intercept of 4 represents the number of cups of coffee that were purchased in total from the one gift card.
Have a good day :)
1/2÷4 as a multiplication equation
Beckett purchased a diamond ring for $14,000. The value of the ring increases 2.1% every year
Answer:
14,000+2.1%(0.021)x
Step-by-step explanation:
x is how many years
is it yes or no??........
Answer:
No
Step-by-step explanation:
It's not proportional because the unit rate for each hour isn't the same.
The entrance to our school has a height of 10.5 feet. There are approximately 30.5 centimeters in 1 foot. What is the height of the entrance in centimeters?
Answer:
320.25 centimeters
Step-by-step explanation:
you multiply 10.5 * 30.5
Mr.Camron had 1/3 of a pan of lasagna represented by the shaded part of the rectangle. He cut the lasagna into 4 equal pieces and ate one piece for lunch. What fraction of the whole pan of lasagna did Mr.Camron eat for lunch?
Answer:
1/12 of the pan
Step-by-step explanation:
He has 1/3 of a pan of lasagna.
You are dividing it by 4 as he cut the 1/3 pan into 4 equal pieces, so you can do 1/3 divided by 4.
A simple trick to divide a fraction from a number is to change the division sign to multiplication and flipping over the second fraction.
So 1/3 / 4
would become
1/3 x 1/4
and so it is 1/12
1/12 is your answer
Hope this helps!
Pls help someone my brain is about to explode
Answer:
It has to be the third option.
Happy to help :)
From 74 ft to 75 ft? And is it a increase or decrease
Answer:
Its an increase
1 ft difference
increasing i believe
Calculate the average speed of an insect that walked 27 centimeters in 9 seconds. *
A 9 cm/s
B 27 cm/s
C 243cm/s
D 3 cm/s
Answer:
D) 3cm/s
Step-by-step explanation:
Speed (or velocity) is calculated with d/t (distance/time). From the multiple-choice options, we know the unit is cm/s, which makes it super convenient.
Now, using the equation and seeing that 27cm is the distance and 9s is the time, 27/9 =3.
Therefore, the answer is D, 3cm/s.
Hope that helps!
help im confusion......
Answer:
Line J
Step-by-step explanation:
It is sloping downwards. It starts in the top left and end at the bottom right, so it it the only negative one
Answer:
Line J
Step-by-step explanation:
Its the only one descending downwards, while the other two are going up in a positive direction.
Hope this helps (:
HELPPPPPPP ............ please.
Answer:
B) 1/3
Step-by-step explanation:
Add up all the marbles
5 + 6 + 3 + 4 = 18 marbles
Make a fraction of the red marbles out of all the marbles
6/18
Simplify the fraction
1/3
Answer:
b
Step-by-step explanation:
chances of drawing a red is 6/18
6/18=1/3, so its B
please help me with this question
Answer:
top right and bottom left
Step-by-step explanation:
im in precal and if i get this wrong i am so sorry
but im pretty sure those r what increasing graphs look like as the increase in a positive direction
hope this is correct and helps :)
Graph the line that passes through the points (3, -5) and (-1, -9) and determine
the equation of the line.
Answer:
the slope intercept equation for this line would be y = x - 8
Step-by-step explanation:
the slope of the line is 1 so you dont have to include it in the equation and it crosses the y line at -8 so the y-intercept is -8
Answer:
y= x-8
Step-by-step explanation:
If OB= 2x+1 and
BR = 3x-10 then OR=
Lima beans $2.13 for 2 lb
Answer:
i think its $1.07 per pound.
Step-by-step explanation:
HELP ANSWER X FOR THIS ISOSCELES TRIANGLE THANK YOU
Answer:
Step-by-step explanation:
Remark
The point about the question is that the two sides are marked as equal.
Equation
3x + 5 = 5x + 1 Subtract 3x from both sides
Solution
3x - 3x + 5 = 5x - 3x + 1 Combine like terms
5 = 2x + 1 Subtract 1 from each side
5-1 = 2x +1 - 1 Combine
4 = 2x Divide by 2
4/2 = 2x/2
x = 2
please help me I dont want to do it and I am on a timed thing
Answer:
-1
Step-by-step explanation:
Answer:
-1
Step-by-step explanation:
-5 -15 = -20
-20+4 = -16
-16+15 = -1
Therefore, -5-15+4+15 = -1
Help me please!
How much can the Owen family expect to pay per year for tuition to a private college?
A)$22,568
B)$23.068
C)$24.618
D)$25.458
Can anyone help me with this Midterm Advanced Algebra problem. (DONT ANSWER IF YOUR NOT SURE)
Answer:
y = -1/2x + 13/2
Step-by-step explanation:
The slope of a line that is perpendicular to a line will be a negative reciprocal. When you rewrite 2x-7=8 into slope-intercept form, you get y=2x-8. The negative reciprocal of the slope 2x is -1/2x. There is only one option with this slope. If you're still not sure then you can use a graphing calculator to check this. An online one would be desmos
Hello pls answer i reposted cus it flopped
Answer:
5cm
Step-by-step explanation:
(3+7)divided by 4 = 2.5
2.5 x 2 = 5
write as a single fraction in its simplest form 2x -1 / 3 - 2/x + 1
Answer:
(2x^2 + x-7)/3x+ 3
Step-by-step explanation:
Here, we want to write the following as a single fraction;
2x-1/3 - 2/x + 1
That will be;
(2x-1)(x + 1) -2(3)/3(x+ 1)
= 2x^2+ 2x-x-1-6/3(x + 1)
= (2x^2+x-7)/3(x+1)
= (2x^2 + x-7)/3x+ 3
