Answers
Answer:
y=51 x=8
Step-by-step explanation:
if your in a rush I'll explain later
27+3y=90
3y=63
y=21
90+x+(8x+18)=180
108+9x=180
9x=72
x=8
Related Questions
Will give brainliest
The newspaper in Haventown had a circulation of 80,000 papers in the year 2000. In 2010, the circulation was 50,000. With x=0 representing the year 2000, the graph below models this scenario.
What number will complete the point-slope equation that models this scenario?
y−50,000=[_______](x−10)
−3,000
−2,000
2,000
3,000
Answers
Answer:
- 3000 is the answer
Step-by-step explanation:
just took the test on edu
The slope of the given equation is -3000.
What is algebraic Expression?Any mathematical statement that includes numbers, variables, and an arithmetic operation between them is known as an expression or algebraic expression. In the phrase 4m + 5, for instance, the terms 4m and 5 are separated from the variable m by the arithmetic sign +.
We are aware that the Havertown newspaper had 80,000 readers in the year 2000 (when x=0) and 50,000 readers in the year 2010 (when x=10). With this knowledge, we can determine the slope of the line that depicts this situation:
slope = (change in y) / (change in x) = (50,000 - 80,000) / (10 - 0) = -3,000
So the slope of the line is -3,000.
We also have a point on the line: (10, 50,000). Using the point-slope form of the equation of a line, we can write:
y - 50,000 = -3,000(x - 10)
Now we just need to find the value that goes in the blank to complete the equation.
Because the line's slope is -3,000, y reduces by 3,000 for every unit increase in x.
We can see that a one-unit increase in x corresponds to a one-year increase in the time since x indicates the number of years from the year 2000. As a result, we might conclude that 3,000 fewer copies of the newspaper were distributed annually.
The point-slope equation is complete when:
y - 50,000 = -3,000(x - 10)
So the answer is -3,000.
Learn more about algebraic Expression here:
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Calculate the average of the following numbers: 14, 8, -17, -8, 18?
Answers
Answer:
3
Step-by-step explanation:
to calculate the mean of a list, you need to add up all the numbers and divide by the number of numbers
[tex]14+8+(-17)+(-8)+18=15[/tex]
[tex]\frac{15}{5}=3[/tex]
Answer:
3
Step-by-step explanation:
The average is the sum of the given numbers divided by the count (how many numbers you have):
14 + 8 -17 - 8 + 18 15
average = ---------------------------- = ----------- = 3
5 5
100 yards
40 yards
40 yards
100 yards
1.
What is the area of one of the blue half circles? HINT: Remember, Area = pi x radius squared.
So you will need to use the 40 (this is the diameter so make sure you find the radius). Then
since you only want a half circle, you will need to divide it by 2. SHOW ALL WORK!
Answers
Answer:
Depends on how the teacher wants the answer:
400π (in terms of pi) or 1256.6 (rounded to tenths place)
Step-by-step explanation:
40/2 = 20, the radius of one of the blue circles
Use the formula: πr², but divide it by 2 because it is a semicircle
π20² = 400π = 1256.63706
Let me know if you need help rounding it if the question asks you to.
Find N' after N(2, 3) was reflected over the line y = x + 2.
Answers
Answer:
Step-by-step explanation:
Did u find the answer?
The reflected over the line y=x+2 is A''(-3,-2). Each point of the original figure (the pre-image) has an image that is the same distance from the reflection line as the original point, but is on the other side of the line.
What is meant by reflected over the line?Each point of the original figure (the pre-image) has an image that is the same distance from the reflection line as the original point, but is on the other side of the line. This transformation is known as a reflection over line.
A transformational process turns a figure into a reflection. Figures can be reflected in a point, a line, or a plane. When reflecting a figure in a line or a point, the image and preimage coincide. A reflection converts each point of a figure from a point to an image across a fixed line.
From the additional image, you can see that the coordinates of image point A' are after reflection point A about the line y=-x (-3,2).
Next, the coordinates of reflection point A' about the x-axis are (-3,-2).
The complete question is : Find the image of A (-2,3) reflected in the line y= -x and then in the x axis
To learn more about reflected line refer to:
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9. D(-3, -8), E(1, -2)
Midpoint
Answers
omari bought some magnets and spinners. each magnet cost $2 and each spinner cost $4. he bought 7 more magnets than spinners and spent a total of $104. how many magnets did he buy?
Answers
Answer:
22 Magnets
Step-by-step explanation:
Hope this helps! Please let me know if you need more help, or if you think my answer is incorrect. Brainliest would be MUCH appreciated. Have a great day!
BRAINLIEST + 25 PTS FOR CORRECT ANSWER.
Lia gets paid $450 a week plus a
5% commission on her sales. She
hopes to earn at least $600
dollars each week.
a. Write an inequality to
represent the verbal
description.
b. How much does Lia
need in sales to make
her goal?
Answers
Answer:
a: 450 + .05c ≥ 600
b: She needs to make $3,000 in sales to reach her goal.
PLz mark brainliest
PLEASE HELP I WILL GIVE BRAINLEST!!!. How much of the brownies will each person get if there are 3 people and 4 brownies? Use words, pictures, and an equation to explain your thinking.
Answers
Answer:
each person will get 3/4 of a brownie
Step-by-step explanation:
If you divide 3 into 4 you get 3/4
[tex]3/4 = \frac{3}{4}[/tex]
Where in the bible is there an indication of the value of pi.
Answers
Answer:
No where
Step-by-step explanation:
I need help please !!!!!
Answers
Answer:
hello
4/14 x 5 /14 = 20/196 = 5 / 49
Step-by-step explanation:
Answer:
it's A. 1/3 because yes it's a
can someone give me formulas to calculate area
Answers
Answer:
Step-by-step explanation:
Triangle
Area = ½ × b × h
b = base
h = vertical height
Square
Area = a2
a = length of side
Rectangle
Area = w × h
w = width
h = height
Parallelogram
Area = b × h
b = base
h = vertical height
Trapezoid (US)
Trapezium (UK)
Area = ½(a+b) × h
h = vertical height
Circle
Area = π × r2
Circumference = 2 × π × r
r = radius
Ellipse
Area = πab
Sector
Area = ½ × r2 × θ
r = radius
θ = angle in radians
Cole hauls heavy equipment from North Dakota to Winnipeg. After crossing into Canada, he sees a sign that says the weight limit for the road is 7 metric tons. He must decide whether to drive on this road or to take a detour. How many U.S. standard tons are allowed on the road?
Answers
Work Shown:
1 metric ton = 1.1023 US tons
7*(1 metric ton) = 7*(1.1023 US tons)
7 metric tons = 7.7161 US tons
Add 3 to a number and then double the result. If the total is 22, find the number.
Answers
Denise drew a diagram of part of a slide at a community playground.The slides ladder forms two angles with the ground.The measurement of one angle is half the measurement of the other.What are the measures of the angle show your work.
Answers
Applying the concept of supplementary angles, their measures are of 60º and 120º.
What are supplementary angles?Two angles are called supplementary if the sum of their measures is of 180º.
In this problem, we have that the measurement of one angle is half the measurement of the other, and they are supplementary, hence:
[tex]x + \frac{x}{2} = 180[/tex]
[tex]\frac{3x}{2} = 180[/tex]
3x = 360
x = 120
x/2 = 120/2 = 60º.
The measures of the supplementary angles are of 60º and 120º.
More can be learned about supplementary angles at https://brainly.com/question/12919120
A father is 34 years of age. At present his son is 8 years old. In how many years will the father be three times as old as his son ? (11 6 years (3) 4 years (2) 5 years (4) 3 years
Answers
5yrs
Step-by-step explanation:
Father's age = 34yrs
Sons age = 8yrs
In how many yrs will the father be 3× as old as his son?
Let their ages be X
(x + 34) 3(x + 8)
x + 34 = 3x + 24
CLT
x-3x = 24 - 34
-2x/2 -10/2
X = 5
what are the missing numbers?
Answers
Answer:
30
19.5
16
Step-by-step explanation:
you need to find the rule, so divide 12 by 8 and see the factor is 1.5, so just multiply all the numbers by 1.5 to get the second column, and for the last one divide the number by the factor
Answer:
20 honey = 30 flour
13 honey = 19.5 flour
16 honey = 24 flour
Step-by-step explanation:
CROSS MULTIPLYING:
12x20=240, 240/8=30
13x12=156, 156/8= 19.5
8x24=192, 192/12=16
PLZ HELP MEEEE!!!!!! IN TEST .....Use slope-intercept form to write the equation of a line that has a slope of −2
and passes through the point (-4, 1)
Answers
Answer:
you would end up at (-4,-1)
Step-by-step explanation:
A garden is in the shape of a rectangle, ABCD, and a semicircle.
AD is the diameter of the semicircle.
Carol is going to cover the garden with fertiliser.
A box of fertiliser costs £4.99
Carol has been told that one box of fertiliser will cover 12 m? of garden.
(a) Work out the cost of buying enough fertiliser to cover the garden completely.
Answers
Answer:
34.93
Step-by-step explanation:
find area of semicircle=(pi×radius squared)/2=27.7
find area of rectangle=base×height=47.04
74.74=total area
if one box covers 12 how many boxes cover 74.74=6.2283 but you cannot buy .2283 of fertiliser so you round up to 7 boxes
so total cost becomes 7×4.99=34.93
why is " 3 meals a day" a unit rate
Answers
Answer:
its a unit rate because it compares 3 meals to 1 day (ex. breakfast, lunch, dinner all = 1 day)
Step-by-step explanation:
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You have $35.72 to spend for a sweatshirt. The sales tax is 7% what is your price limit for the sweatshirt?
Answers
Answer:
33.22
you multply 35.72 by 7%
From 1990 to 2000, the population of California can be modeled by P = 29, 816,591(1.0128) where t is the
number of years since 1990.
A. What was the population in 1990?
B. What is the growth factor?
C. What is the annual percent increase?
D. Estimate the population in 2007.
Answers
The population is modeled with an exponential equation, and using what we know about exponential equations we will see that:
A) P(0) = 29,816,591B) the growth factor is 1.0128C) 1.28%D) P(17) = 37,013,551.9How to identify the parts of the exponential equation?
Here we have the exponential equation:
P(t) = 29,816,591*(1.0128)^t
A) The population in 1990 will be given by P(0), this is:
P(0) = 29,816,591*(1.0128)^0 = 29,816,591
B) For an exponential:
A*(b)^x
We can rewrite it as:
A*(1 + r)^x
In this case, b is the growth factor, so in our function, the growth factor is 1.0128
C) Using the above notation, the percent increase by year is given by 100% times r, so first let's get the value of r.
r = b - 1 = 1.0128 - 1 = 0.0128
Then the percent increase is: 0.0128*100% = 1.28%
D) The year 2007 comes 17 years after 1990, so we need to evaluate the equation in t = 17, we will get:
P(17) = 29,816,591*(1.0128)^17 = 37,013,551.9
If you want to learn more about exponential equations, you can read:
https://brainly.com/question/11832081
solve pls brainliest
Answers
Answer:
15 out of 21 boys brought their lunch to school
Step-by-step explanation:
We need to get the denominator the same!
3/5 x 7 = 21/35
3/7 x 5 = 15/35
15 out of 21 boys brought their lunch to school :)
Please rate and mark brainliest!!
Have an amazing day!!
Answer:
the answer would be 15/21 my friend :) please rate 5 stars and give brainlest.
Step-by-step explanation:
Is 7 a solution to the compound inequality
Answers
Answer:
yes
Step-by-step explanation:
any number more than 5 works, even 5.01
One athlete runs around a track in 65 seconds.
The second athlete takes 70 seconds. If they
both start together
when will the first lap the second?
Answers
Answer:
in the 13th lap
Step-by-step explanation:
Ye Samantha left home with $42.51. The subway fare was $1.20. At the sta-
tion she bought a magazine for $1.95. Lunch cost $4.36. After work she
bought a skirt on sale for $26.00. Her subway fare home was also $1.20.
At the station Shelly gave Samantha $5 to pay back a loan. How much
money did Samantha have at the end of the day?
Answers
Please help
Find the indicated side of the triangle
What is a= ?
Answers
Answer:
28[tex]\sqrt{2}[/tex]
Step-by-step explanation:
The given is a special right triangle with angle measures : 45-45-90
The side lengths in this special triangle is follows as x[tex]\sqrt{2}[/tex]-x[tex]\sqrt{2}[/tex]-x
x represent the side length that sees the angle measure with 90 and it is given as 28 here so x[tex]\sqrt{2}[/tex] or a in this case is equal to
28[tex]\sqrt{2}[/tex]
Find the distance between the points (3, -5) and (6, -5).
Answers
Answer:
0 (i think??)
Step-by-step explanation:
use the equation to find the slope:
y2 - y1/ x2 - x1 or y1 - y2/x1 - x2
sooo
(3, -5) (6, -5)
-5 - (-5) / 3 - 6
-5 + 5/ -3
0
Answer:
3
Step-by-step explanation:
The y-values of both points is -5. This means that the line between the points is a horiztonal line. Therefore the distance between the points is simply the difference between the x-values: 6 - 3 = 3
The approximate distance between Earth and the Sun is 93,000,000 miles. Write this number in scientific notation. Do not include the units.
Answers
Answer:
9.3x107 (if I'm wrong I'm stoopid)
Step-by-step explanation:
Do the following side lengths form a right triangle?
7,24,25
Answers
Answer:
yes
Step-by-step explanation:
A statue casts a shadow that is 360 meters long. At the same time, a person who is 2 meters tall casts a shadow that is 6 meters long. How tall is the state?
Answers
Answer:
1080
Step-by-step explanation: