The percent of decrease is -25%.
Given that,
Last year, Springfield Middle School had 640 students. This year, it has 480 students. Calculation:[tex]= (480 - 640) \div 640\\\\= -160 \div 640[/tex]
= -25%
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What is the solution to the equation 3(2x+5) = 3x+4x?
O x 0
O X-4
O X-5
O X-15
Sa
Mark this and return
Answer:
15
Explanation:
Answer: 15
Step-by-step explanation:
On edg2020
Shoe Size and Height the shoe sizes and heights (in in.) for 12 men.
Shoe
7.5 8
8 18 19 19 9 10 10 10 11 12
Size, X
Height,
61 63.5 62.5 65 65 67 65.5 64.5 66.5 67 68 65.5
У
Based on this Linear Regression Line, how tall would a man be, who wore size 13
shoes?
64.29 in
(1 65.29
K 66.79
68.79
Answer:
68.79
Step-by-step explanation:
I used a graphing calculator to ender the points then used the linear regression line option to finf the line of best fit. Im not sur ehow to do it with an equation.
find angle sum therom
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Sum of the interior angles of any triangle is 180° .
Thus ;
[tex]y + 48° + 90° = 180°[/tex]
[tex]y + 138° = 180°[/tex]
Subtract sides 138°
[tex]y + 138° - 138° = 180° - 138° \\ [/tex]
[tex]y = 42°[/tex]
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Peyton's car used 6 gallons to travel 192 miles. How many gallons of gas would she need to travel 480 miles?
Answer:16
Step-by-step explanation:
Answer:15
Step-by-step explanation:
Which statement must be true about line TU?
Line TU is parallel to line RS.
Line TU is perpendicular to line RS.
Line TU has no slope.
Line TU has a slope of –5.
Answer:
line TU is parallel to line RS
Step-by-step explanation:
edg2020
Answer: line TU is parallel to line RS
Step-by-step explanation:
long division method hcf of 430,516 and 817
Answer:
you need to add up 430,516 x 817 and see what it gives you for my exclusive seen 1247.516
Step-by-step explanation:
The table below represents the number of hours a student worked and the amount of money the student earned. What is the initial amount this student is paid? (Base pay, when number of hours, h = 0) I’LL PAY YOU 30 DOLLARS IN CASHAPP RIGHT NOW WHEN YOU DO IT!
The initial amount this student is paid is 0 and this can be determined by using the two-point slope form of the line.
Given :
The given table represents the number of hours a student worked and the amount of money the student earned.
The following steps can be used in order to determine the initial amount this student is paid:
Step 1 - The two-point form of the line can be used in order to determine the initial amount this student is paid.
Step 2 - So, the linear equation that represents the given situation is:
[tex]\rm \dfrac{d-50}{h-8}=\dfrac{93.75-50}{15-8}[/tex]
Step 3 - Simplify the above expression.
[tex]\rm \dfrac{d-50}{h-8}=6.25[/tex]
d - 50 = 6.25h - 50
d = 6.25h
Step 4 - Now, substitute the value of (h = 0) in the above expression.
d = 0
Therefore, the correct option is D) There is no base pay.
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Azel has 10 apples and Emily has 5 apples
Where does emily live?
A. Port geese 2546
B. In Atlanta
C. Nowhere
D. All the above
Answer: I think all of the above
Step-by-step explanation:maybe there traveling so…
Which of the following graphs could be the graph of the function f(x)=.03x2(x2-25)
Answer:were are the graphs
Step-by-step explanation:
PLEASE HELP! I REALLY NEED HELP WITH THIS!! I WILL MARK BRAINLIEST!!!
All of the following expressions are equivalent to 12w + 6, except:
-1(12w - 6)
(3 + 6w)2
6(1 + 2w)
-1(-12w - 6)
Answer:
2nd one
Step-by-step explanation:
I NEED HELP QUICK (20 points.)
"Here's a graph of linear function. Write the equation that describes that function. Express it in slope-intercept form."
Answer:
y = 1/2x - 6
Hope I helped!!!
Slope intercept form is:
y = mx + b
m is the slope
b is the x intercept
34. What is the smallest subset containing 100 ?
A. Irrational Numbers
B. Whole Numbers
C. Natural Numbers
D. Rational Numbers
triangle ABC is being dilated with center of dialation at the origin. The image of c, point C', has coordinates of (7.2, 3.6). What is the scale factor of the dilation and what are the coordinates of point A'?
Answer:
4
Step-by-step explanation:
Coordinates of the image point A' will be (-3.6, 3.6).
Rules for the transformation:If a point (h, k) is dilated by scale factor 'a' about the origin, coordinates of the image point point C' will be → (ah, ak)If a point C(6, 3) is dilated by a scale factor 'a', coordinates of the image point C' will be → (6a, 3a)From the graph attached, image point of C(6, 3) is C'(7.2, 3.6)
By the rule of transformation → (6a, 3a) = (7.2, 3.6)
6a = 7.2 ⇒ a = 1.2
Coordinates of point A → (-3, 3)
If the point A is dilated by a scale factor 1.2 about the origin,
Coordinates of the image point A' will be → A'(-3×1.2, 3×1.2)
→ A'(-3.6, 3.6)
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A student's work to solve an equation is shown.
9514 1404 393
Answer:
incorrectlyone solutionStep-by-step explanation:
The third line of the solution is incorrect. It should be ...
5x +2 = -5x +2
Then the one solution can be found:
10x = 0 . . . . . . . . . add 5x-2 to both sides
x = 0
A lotion is made from an oil blend costing $1.50 per ounce and glycerin costing $1.00 per ounce. Four ounces of lotion costs $5.50.
A table titled Lotion, showing Ounces, Cost per Ounce, and Total. The first row shows, Oil Blend, and has 4 minus g, 1.50, and x. The second row shows Glycerin, and has g, 1.00, and blank. The third row shows, Mixture, and has 4, blank, and 5.50.
Answer:
(4 – g) 1.5
Step-by-step explanation:
Trust
Answer:
(4 – g) 1.5
Step-by-step explanation:
Does anyone know this
Answer:
2.5
Step-by-step explanation:
2.5
Answer:
2.5s
Step-by-step explanation:
Time = [tex]\frac{Distance}{Speed} =\frac{5 meters}{2m/s} =2.5s[/tex]
900 students attend Ridgewood Junior High School. 5% of students bring their lunch to school everyday. How many students brought their lunch to school on Thursday?
Answer:
180 students brought their lunch to school on Thursday
Step-by-step explanation:
We are told that out of 900, 5% of the students brought their lunch to school everyday
So the number that brought their lunch on Thursday will be;
5% of 900
= 5/100 * 900 = 180
Brodie hires a technician to fix his air conditioning unit. The total cost includes $26.50 for parts and $50.00 per hour the technician works on the job.
Which equation can be used to find y, the total cost Brodie pays, given x represents the number of hours the technician works on the job?
y = 26.50x + 50
y = 50x + 26.50
y=26.50(x+50)
y=26.50x−50
Answer:
y = 50x + 26.50
Answer:
Y = $50x + $26.50
Step-by-step explanation:
$26.50 is the independent cost unaffected by hours put in.
Rate is $50 per hour.
X then is the hour count.
Thus,
Y = $50x + $26.50
The speed of sound in hydrogen is about 3.9 times its speed in air. If its speed in
hydrogen is almost 1287 m/s, what is its speed in air?
Answer:
330
Step-by-step explanation:
Answer:
330 m/s
Step-by-step explanation:
Divide 1287 m/s by 3.9 to get the speed of sound in air as given that the speed of sound in hydrogen is 3.9 times it's speed in hydrogen.
Hope this makes sense.
Good luck!!
Convert − 6 7to a decimal. Go out 3 decimal places and round as appropriate.
Answer:
-0.85714285714
Rounded answer:
-0.86
Step-by-step explanation:
You and a friend are doing math homework together you have to solve the equation 5X + 4X -68 equals 34 - 8X. Your friend arrives at the incorrect answer X equals -2 find the correct value of X then find the error your friend possibly be made
Answer:
the correct answer
x = 6
Step-by-step explanation:
5x+4x-68=34-8x, combine like terms
9x-68=34-8x, add 68 to both sides
9x=102-8x, add 8x to both sides
17x=102, divide both sides by 17
x=6
your friend's answer is the same work, but instead of adding 68 to both sides, it was subtracted from 34 giving a -34 instead of 102.
9x=-34-8x
17x= -34
x = -2
Joey completed 3,556 push ups over a 4-week period (there are 7 days in a week). Joey did the same number of push-ups every day. How many push-ups did Joey do each day
Answer:
127 per day
Step-by-step explanation:
Total pushups in 4 weeks = 3,556
4-week period( 7 days a week) = 4 × 7
= 28 days
How many push-ups did Joey do each day?
Push ups per day = Total push ups / Total number of days
= 3,556 / 28
= 127
Push ups per day = 127
Joey did 127 push-ups each day for a 4-week period( 7 days a week)
Someone help me please ASAP
Answer:
3. 45, 4. 24
Step-by-step explanation:
use formula: hypotenuse²= side² + other side ²
3.
x²= 27²+36² calculate the squares then add
x²=2025 square root both sides
x= √2025= 45
4.
25²= x²+7² isolate the vaiable by subtracting 7² from both sides
25²-7² = x² square then subtract
576 =x² square root both sides
24=x
Noah's recipe
Andre's recipe
scoops of powder
cups of water
scoops of powder
cups of water
To make orange fizz, Noah mixes 4 scoops of
powder with 6 cups of water. Andre mixes 5 scoops
of powder with 8 cups of water. Whose mixture has
more orange flavor?
10
15
1
Noah's recipe
because 6 cups of
water is less than 8
cups of water.
Noah's recipe
because he uses
less water per
scoop of powder
than Andre does.
Andre's recipe because
he uses more scoops
of powder per cup of
water than Noah does.
Andre's recipe
because he uses
more scoops of
powder.
Answer:
Noah
Step-by-step explanation:
4/6 = 32/48
5/8 = 30/48
It is simple I did this a while back and got an A
Classify the following triangle. Check all that apply.
O A. Obtuse
B. Equilateral
c. Right
D. Acute
O E. Scalene
OF. Isosceles
Answer:
This is an Equilateral Acute triangle.
Expand: -3(x – y + 5)
Answer:
-3x+3y-15
Step-by-step explanation:
;)
Answer:
-3x+3y-15
Step-by-step explanation:
-3*x= -3x
-3*-y= 3y
-3*5= -15
If f(x)= (-2)/3 x+9 and g(x)=5x^2-2x+9, find the following.
SHOW ALL WORK PLEASE <3
a. f (-18) =
b. g (6) =
c. f (9) + g (-3) =
d. f (-15) – g (2) =
e. f (8) + g(4)=
Please help me out. This is for my notes, thank you.
Please don't reply if you don't know the answers. Thank you.
Answer:
21 , 177, 63 , 44, 84 2/3
Step-by-step explanation:
a. f(-18) =
-2/3 (-18) + 9
12 + 9
21
b. g(6) =
5(6)2 – 2(6) + 9
5(36) – 2 (6) + 9
180 – 12 + 9
177
c. f(9) + g(-3) =
-2/3 (9) + 9 + 5(-3)2 – 2(-3) + 9
-2/3(9) + 9 + 5(9) – 2(-3) + 9
-6 + 9 + 45 + 6 + 9
63
d. f(-15) – g(2) =
-2/3 (-15) + 9 + 5(2)2 – 2(2) + 9
-2/3(-15) + 9 + 5(4) – 2(2) + 9
10 + 9 + 20 - 4 + 9
44
e. f(8) + g(4) =
-2/3 (8) + 9 + 5(4)2 – 2(4) + 9
-2/3(-15) + 9 + 5(16) – 2(4) + 9
-16/3 + 9 + 80 – 8 + 9
254/3
84 2/3
Which sets of values belongs to the domain and range of a relation
full answer:
As we know that
The domain of a relation is defined as the set of all possible independent values the relation can really take - basically the group of all possible inputs.
The range of a relation is defined as the set of all possible dependent values the relation can generate from the domain values - basically the group of all possible outputs.
As
The domain is the set of independent values, meaning the set of x-coordinates of the ordered pairs as x is an independent variable.
The range is set of dependent values, meaning the set of y-coordinates of the ordered pairs as y is an independent variable.
So, in the set of ordered pairs of a relation
Draw a line through the point (−2,−2) with a slope of 1/4. Draw a line through the point (2, 0) with a slope of 1/4
Answer:
Step-by-step explanation:
The standard equation of a line in point-slope form is expressed as;
y-y0 = m(x-x0) where:
m is the slope
b is the y-intercept.
Given the following
Slope = 1/4
(x0, y0) = (-2, -2)
The equation becomes;
y-(-2) = 1/2(x-(-2))
y+2 = 1/2(x+2)
2(y+2) = x+2
2y+4 = x+ 2
2y-x = 2-4
2y-x = -2
For the line through the point (2, 0) with a slope of 1/4
y - 0 = 1/4(x-2)
y = 1/4(x-2)
4y = x- 2
4y - x = -2
Find the plotted lines below:
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Two lines, A and B, are graphed (Look at the picture):
Determine the solution and the reasoning that justifies the solution to the systems of equations.
a.(−4, 6), because both the equations are true for this point
b.(2, 8), because the graph of the two equations intersects at this point
c.(2, 8), because neither of the two equations is true for this coordinate point
d.(−4, 6), because the graph of the two equations intersects the axis at these points
Answer:
B. (2,8), because both equations intersect at this point
Answer:
B. (2,8), because both equations intersect at this point
Step-by-step explanation:
Why is it answer B? Because of Enlarging the graph, we find that the intersection of the two lines drawn is at point (2,8). Hence, the solution of the equation is (2,8) because the graphs of the two lines intersect at this point.
