Answer:
I. 1/5
II. -1/14
III. 2/9
Step-by-step explanation:
(i) (-3/5) + (-2/7)
Opening up the bracket;
3/5 - 2/5 =
Lowest common multiple (LCM) = 5
(3 - 2)/5
= 1/5
(ii) (-2/7) - (-3/14)
Opening up the bracket;
-2/7 + 3/14 =
Lowest common multiple (LCM) = 14
(-4 + 3)/14 = -1/14
(iii) (-4/ 9) = (- 2/3)
Rearranging the fraction, we have;
-4/9 + 2/3 =
Lowest common multiple (LCM) = 9
(-4 + 6)/9 = 2/9
WILL MARK BRAINLYEST AND 50 POINTS
Give a detailed explanation as to why you chose the answer you chose
-4x+9y=9
3y-6=x
Solve the system of equations and fill in the blanks
X=
Y=
Step-by-step explanation:
the answer for x = 9
the answer for y = 5
What is the difference between a savings and a checking account? HELPPP?!
1.A checking account creates interest.
2.A savings account creates Interest.
3.A savings account lets you take out as much money as you want as many times as you want.
4.Both accounts are the sam.
Answer:
3
Step-by-step explanation:
Doug rents a kayak for 12 days the rental charges 18 per day what is the best estimate for the total cost of the kayak rental
Answer:
200
Step-by-step explanation:
I rounded both numbers and multiplayer them.
Find the mean, variance, and standard deviation of the binomial distribution with the given values of n and p.
n = 80, p = 0.2
Answer:
mean =16
variance=12.8
standard deviation =3.578
Step-by-step explanation:
mean=np=80×0.2=16
variance= np(1-p)
=16(1-0.2)
=12.8
standard deviation =
[tex] \sqrt{12.8} [/tex]
=3.5777
=3.578
The area (in square inches) of a rectangle is given by the polynomial function A(x) = x^2+ 10x + 24. If the width of the rectangle is (x + 6) inches, what is the length
Answer:21
Step-by-step explanation:
Determine the slope intercept form of the linear equation from its graph.
Given:
The graph of linear function.
To find:
The slope intercept form of the linear equation from the given graph.
Solution:
The slope intercept form of a linear function is:
[tex]y=mx+b[/tex]
From the given graph it is clear that the graph passes through the points (1,300) and (4,800).
The equation of line is
[tex]y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]
[tex]y-300=\dfrac{800-300}{4-1}(x-1)[/tex]
[tex]y-300=\dfrac{500}{3}(x-1)[/tex]
[tex]y-300=\dfrac{500}{3}x-\dfrac{500}{3}[/tex]
Adding 300 on both sides, we get
[tex]y=\dfrac{500}{3}x-\dfrac{500}{3}+300[/tex]
[tex]y=\dfrac{500}{3}x+\dfrac{900-500}{3}[/tex]
[tex]y=\dfrac{500}{3}x+\dfrac{400}{3}[/tex]
Therefore, the required equation is [tex]y=\dfrac{500}{3}x+\dfrac{400}{3}[/tex].
Define the range of the following:
Answer:
{-2, 3, 4, 5}
General Formulas and Concepts:
Math
Number LineAlgebra I
Range is the set of y-values that are outputted by function f(x)Builder Set Notation {x}Step-by-step explanation:
According to our graph, our y-values are 3, 4, 5 and -2. Since they are all closed dots, they are inclusive in the range:
Remember to put it in number line order.
{-2, 3, 4, 5}
HELP ME PLEASE NOBODY IS ACTUALLY HELPING THIS OS SO HARD AND IM STUCK 7TH GRADE MATH
WNBA Mean:__________
WNBA Mean Absolute Deviation:_________________
NBA Mean:___________________
NBA Mean Absolute Deviation:_______________________
The variability in heights is only different by _____________ inches.
Answer:
1. 72 [tex]\frac{5}{11}[/tex]
3. 79 [tex]\frac{5}{6}[/tex]
Step-by-step explanation:
The mean is found by dividing the sum of the inputs by the total number of inputs.
Answer:
enjoy your day hope the answer comes to you
Step-by-step explanation:
ahhhh I need this explained 2
Answer:
Step-by-step explanation:
[tex]a_{n}=-2*5^{n-1}\\n=11\\a_{11}=-2*5^{11-1}\\a^{11}=-2*5^{10}\\=-2*50,000,000,000\\=-100,000,000,000[/tex]
Pls help I will give brainiest answer.
Answer:
1) D
2) A
Step-by-step explanation:
The factors of p2-2pq+q are
Answer:
Unsure
Step-by-step explanation:
did you forget the q^2
if so,
(p-q)^2
if not,
you can't simplify any further
Answer:
qp 2
Step-by-step explanation:
pick correct graph from multiple choice options. A.B.C.D PLEASE
Answer:
i think it would be going to C because you dont have what x would be so we could assume that it is 0 and y intersection would be 2
Step-by-step explanation:
help and listen to anime thighs by MC Virgan
Answer:
I am nottt listening to that i already know whay that is
Answer:
C broooo
Step-by-step explanation:
a polygon has 10080° as the total interior angle how many sides has the polygon
The formula for the sum of the interior angles of a polygon is (n - 2) * 180. In this formula, N is the number of sides. So, to find the number of sides that a polygon with an interior angle measure of 10080 has, we'll set the formula equal to 10080.
10080 = (n - 2) * 180
Divide both sides by 180
56 = n - 2
Add 2 to both sides
n = 58
Hope this helps!! :)
Answer:
58 sides
Step-by-step explanation:
The sum of the interior angles of a polygon is 10,080°
n = the number of sides
(2n - 4)90 = 10080
2n - 4 = 10080/90 = 112
2n = 116
n = 58.
A set of buttons sells for $2.75 and costs $0.55 to make. Twenty percent of the profit (the difference between the purchase price and the amount it costs to make) from each set of pencils goes to RMS. If 500 sets are sold, what is the amount of money that will go to the school? i will give brainlyest A
$195.00
B
$220.00
C
$275.00
D
$310.00
Answer: b
Step-by-step explanation: I am 95% sure
4x (2x+1) simplify the equation
answer:
4x × 3x
explanation:
Answer:
8[tex]x^{2}[/tex]+4x
Step-by-step explanation:
Distribute 4x by 2x and by 1
Answer will be 8[tex]x^{2}[/tex]+4x
Hey guys can you please help me with this math problem?
Answer:
77777777
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
its a because it has a greater base value
At Kirby Middle School, some students were surveyed to see which social media app they used the most. The results are shown below. App Number of Students Face 8 Snap 22 Insta 20 Solve and explain how to calculate what percent of students used Snap the most?
Answer:
44% of students
Step-by-step explanation:
because the sum of all the students = 50, we jsut need to multiply by 2 to get 100 (which is the easiest number to get a percentage from. because we multiplied 50 by 2 we must multiply 22 by 2 which gives us 44. 44/100 =44%
Answer:
44%
Step-by-step explanation:
to solve for this you simply add the numbers together in order to get the total then once you find the total you didved the number you're trying to find the percent for by the total
Please solve the question below
Answer:
angle ERT = angle YUP
Step-by-step explanation:
An item originally costs $175.00. The item is now on sale for 99.75. What percent is the sale price for the original price? Is this an example of percent increase or decrease? Explain how you know?
Answer:
Discount percent = 43% off
Discount amount (money saved) = $75.25
Step-by-step explanation:
To find the discount percentage:
List price ($175) minus the sale price ($99.75) then divided by the list price ($175) and multiplied by 100 to get the discount percent of 43%.
To find how much money was saved:
List price ($175) minus sale price ($99.75) to get the amount saved, which savings are $75.25 in this case.
I hope this helps :)
I have this Work Sheet and I need help!
Hope it helps u mate....
Write a slope intercept equation for this situation.
A computer technician charges $60 to come to your house and $18 for each hour he works.
Answer:
y = 18x + 60
Step-by-step explanation:
The slope intercept equation is:
y = mx + b
For this problem:
y will represent the total cost of the technician
m will represent cost per hour
x will represent number of hours
b will represent the initial cost
With this in mind, we can plug these into our equation
y = 18x + 60
Answer:
in slope intercept this would look like y = 18x + 60
A color printer prints 10 pages in 4 minutes. How many minutes does it take per page?
Answer:
2/5 minute OR 24 seconds
Step-by-step explanation:
4/10 = 2/5 minute
Hope that helps!
Shelby leaves her house at 9:00am on her bike at a speed of 320 meters per minute. At 10:30 am, her brother, Colby leaves the house on his bike and tries to catch up with Shelby. Colby rides at a speed of 500 meters per minute. At what time will Colby catch up with Shelby?
Answer:
Step-by-step explanation:
320t=500(t-1.5)
320t=500t-750
-180t=-750
t=25/6
t=4+1/6 hours
So Colby catches up 4 1/6 hours after Shelby left. Since she left at 9am
9+4hours + 10 minutes. So they have travelled the same distance at 1:10pm
About 5/7 of the earths surface is covered with water. About 88957440 km squared is land. How much in km squared of the earths surface is covered in water?
Answer:
71 percent
Step-by-step explanation:
About 71 percent of the Earth's surface is water-covered, and the oceans hold about 96.5 percent of all Earth's water. Water also exists in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers, and even in you and your dog. Water is never sitting still.
The area of the earth's surface covered in water will be 63541028.57 square kilometres.
What is an expression?Expression in maths is defined as the relation of numbers variables and functions by using mathematical signs like addition, subtraction, multiplication and division.
In mathematics, expression is defined as the relationship of numbers, variables, and functions using mathematical signs such as addition, subtraction, multiplication, and division.
Given that about 5/7 of the earth's surface is covered with water. About 88957440 km squared is land.
The area covered with water will be calculated as,
Area = ( 5 / 7 ) x 88957440
Area = 63541028.57 square kilometres.
To know more about an expression follow
https://brainly.com/question/28699958
#SPJ3
Given PQ = y, RS = 4y - 15, QR = 2 +6, and PS = 4a - 6, solve for the
length of RS and QR.
Answer:
Check pdf
Step-by-step explanation:
Find the ratio created when AB is partitioned by C.
Write your ratio with a, : and do not include spaces.
Answer:
Step-by-step explanation:
From the picture attached,
Segment AB has been divided into four equal parts.
Let each part measures equal length = 1 unit
Point C is 2 units apart from both the points A and B.
Length of AC = Length of BC = 2 units
Therefore, point C will be the mid point of segment AB.
And ratio of AC and BC = 1:1
AC:BC = 1:1
Similarly, AC:AB = 2:4
= 1:2
And BC:AB = 2:4
= 1:2
Jacob designs a building with a square base. He starts by building a model for the building, which has a base with an
area of 36 feet?. The base of the real building will have an area of 6084 ft.?.
What is the scale factor between the model and the real building?
O 78
O 13
O 169
O 6
Answer:
Step-by-step explanation:
base of model is 6 ft by 6 ft
base of building is 78 ft by 78 ft
scale factor = 78÷6 = 13
to make one dozen muffins 3/4 cup of blueberries will be needed how many cups of blueberries ared needed to make 48 muffins
57/20 or 2.85 is the right answer