Answer:
5
Step-by-step explanation:
5(a+3)=40
5a+15=40
5a+15-15=40-15
5a=25
a=5
A student found out that 8% ofthe students in his school are left-handed.If there are 114 lefties, how many students are in his school?
Answer: 1,425 students
Step-by-step explanation: This is easy to solve using proportions/
114/8 = ?/100
First, you cross multiply (or whatever this is called sry) 100x114=11400
Then divide 11400÷8=1,425
Use the scatter plot of car resale values to answer the following question about making a prediction of the resale value of a
car.
Car Resale Values
100
80
60
40
20
10
Age of Car
Using the regression line, or line of best fit, predict the resale value of an 8-year-old car with an original cost of $15,000.
The 8-year-old car could be worth approximately $2000.
b The 8-year-old car could be worth approximately $5000.
The 8-year-old car could be worth approximately $3000.
d. The 8-year-old car could be worth approximately $4500.
Answer:
The 8-year-old car could be worth approximately $4500.
Step-by-step explanation:
answer on edge 2020
Answer:
C.the 8 year old car can be worth about 3000 just look at the graph
Step-by-step explanation:
#happycheating
Simplify the expression.
StartFraction negative 44.288 minus 31.6 over negative 3.1 (6 minus 1.2) EndFraction
Answer:
5.1
Step-by-step explanation:
Find y.
A. 6
B.2
C.7
D.4
Answer: HOPE THIS HELPS GOD BLESS PLEASE TOUCH THANKS
C.8
Step-by-step explanation:If x = -5, which inequality is true?
A. -4 - 3x > 7
B. -2 - 6x 14
D. 7 - x < 6
Answer:
A
Step-by-step explanation:
Its A because -4 - 3x > 7 because -1 - 7 is -6 but u have to - 1 because of the negative signs
A company that makes hair-care products had 8,000 people try a new shampoo. Of the 8,000 people, 56 had a mild allergic reaction. What percent of the people had a mild reaction?
Answer: 0.007%
you divide 56% by 8,000 and you get 0.00007
then you multiply it by 100 and you get 0.007
so its 0.007%
frank has an eraser. it has a mass of 4g and a volume of 2cm3 what is the density?
Answer:
2 g/cm^3
Step-by-step explanation:
Let the area of a rectangle in square metres is
[tex] {x}^{2} + 13x + 42[/tex]
How much longer is the length than the width of the rectangle?
A. 7m
B. 8m
C. 1m
D. 6m
Answer:
C)1m
Step-by-step explanation:
So the length and width is
x²-13x+42=0
(x-7)(x-6)=0
x-7=0
x-6=0
x=7 (length)
x=6 (width)
So the difference between length and width is
=7-6
=1m
Answer:
[tex]C.1\ m[/tex]
Step-by-step explanation:
[tex]We\ are\ given\ that,\\Area\ of\ the\ rectangle=x^2+13x+42\\Hence\ lets\ factorize\ this\ area\ completely:\\x^2+13x+42\\=x^2+6x+7x+42\\=x(x+6)+7(x+6)\\=(x+7)(x+6)\\Hence,\\Area\ of\ the\ rectangle=(x+7)(x+6)\\As\ we\ know\ that,\\Area\ of\ a\ rectangle=Length*Width\\Area\ of\ a\ rectangle=lw\\Here,\\lw=(x+7)(x+6)\\Hence,\\l=(x+7),w=(x+6)\ or\ l=(x+6),w=(x+7)\\But\ generally\ the\ length\ of\ a\ rectangle\ is\ greater\ than\ it's\ width.\\Hence\ the\ first\ solution\ is\ suitable\ here.\\[/tex]
[tex]Hence,\\l=(x+7),w=(x+6)\\Hence\ in\ order\ to\ find\ the\ difference\ between\ the\ length\ and\ width\\ we\ must\ perform\ the\ operation :l-w\\Hence,\\(x+7)-(x+6)\\=x+7-x-6\\=1\ m[/tex]
What expression is equivalent to (2a - 7) + 5(3 - a)
Answer:
Step-by-step explanation:
2a-7+15-5a
2a-5a-7+15
-3a+8
The expression which is equivalent to (2a - 7) + 5(3 - a) would be; -3a+8
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
We have been given an expression as;
(2a - 7) + 5(3 - a)
Therefore, solving it further;
2a-7+15-5a
Combine the like terms;
2a-5a-7+15
Then we get;
-3a+8
Hence, the expression which is equivalent to (2a - 7) + 5(3 - a) would be; -3a+8
To know more about an expression follow;
brainly.com/question/19876186
#SPJ2
y=5/3x+1.33 in standard form
Answer:
500 x − 300 y = − 399
Step-by-step explanation:
This should be the answer
Answer:
−300Y + 500x = −399
Step-by-step explanation:
Solve the system of equations 4x + y = 8 and 5x + 2y = 13 using any method.
Answer:
x=1, y=4 or (1,4)
Step-by-step explanation:
Step-by-step explanation:
4x + y = 8
-4x -4x
y = -4x+8
5x + 2y = 13
-5x -5x
2y/2 = -5x/2 + 13/2
y = -5/2x+13/2
You can burn about 450 calories if you run 5 miles.
How many miles will you need to run to burn 630
calories?
Justify your reasoning.
Answer:
6 miles
Step-by-step explanation: 450 divided by 5 is 90 and if you add 450 plus 90 thats 640 calories which is more then 630!
Bula went to Target and bought a new jacket. The price tag said $85 but the sign on the rack said
20% off the price tag. How much did Bula pay for the jacket?
$17
$65
$70
$68
Answer:
she paid 68 so it is d i think
Need hellllp ASAP!!!!!!!
Answer:
d
Step-by-step explanation:
11×17=187
i rounded both of the numbers to whole numbers and then multiplied them. i hope that's what they meant :)
Anna mixes purple and pink dye to create lavander. For every 8 tsp of purple dye, Anna adds 3 tsp of pink dye. Which statement about the relationship between the purple dye and pink dye is true
Answer:
8 tsp purple : 3 tsp pink
Step-by-step explanation:
Work out 97.974436÷14and give your answer to 2 decimal places.
Answer:
7
Step-by-step explanation:
97.974436/ 14= 6.998174
round to 2 decimal places by looking at the third digit after decimal and is 8 that is greater than 5 so will round up the second digit after the decimal
But, that will make 9 a 10 so we have to make the number 7
At a certain high school, about one in every 12 students have natural red hair. If a teacher has 179 students, how many students would they expect to have red hair?
Answer:
look up alaskan pipeline
Step-by-step explanation:
please help for gods sake,,,
Answer:
Step-by-step explanation:
for the table you just add 45 to all the numbers, so it will be 135, and 270
you will just have to graph that.
Answer:
$90 to rent and 15$ per guest. equation is y=15x+90. initial value is 90, rate of change is 15.
Step-by-step explanation:
Need help with this!!!
Answer:
I'm gonna say 4 because 6 divided by 3 is 2
What is the approximate value of Log Subscript 6 Baseline 25?
Answer:
D.1.796
Step-by-step explanation:
Edge 2021
The required value of Log Subscript 6 Baseline 25 is 1.796.
Value of Log Subscript 6 Baseline 25 is to be determine.
What is simplification?In mathematics, using mathematical operators execute the mathematical expression.
Here,
[tex]=log_625\\= log_e25/log_e6\\[/tex]
= 1.796
Thus, the required value of Log Subscript 6 Baseline 25 is 1.796.
Learn more about simplification here: https://brainly.com/question/12501526
#SPJ2
Shannon graphed the system of equations. 7x – 4y= –8 y = y equals StartFraction 3 over 4 EndFraction x minus 3.x – 3 A coordinate grid with 2 lines. The first line passes through (0, negative 3) and (negative 4, negative 6). The second line passes through (0, negative 2) and (negative 4, negative 6). The lines appear to cross at about negative 5 and between negative 6 and negative 8.What of the following best describes the geography English colonists found when they first began to arrive in North America?
Answer:
its (-5 -5.9)
Step-by-step explanation:
i got id right on edg
To measure the length of the pond, Jacob marked off congruent triangles as shown in the diagram.
How does he know the lengths of AB and XY are equal?
A. AAS and then corresponding parts of congruent triangles are congruent
B. SSS and then corresponding parts of congruent triangles are congruent
C. SAS and then corresponding parts of congruent triangles are congruent
D. ASA and then corresponding parts of congruent triangles are congruent
Answer:
B
Step-by-step explanation:
13. Write an equation in slope-intercept form for the line that passes through the point (-3,5) and is parallel to the equation y = -1/2x + 4
A car is traveling at a steady speed. It travels 2 1/2 miles in 3 1/3 minutes. How far will it travel in 45 minutes ?
Answer: The car will travel 30 2/3 miles in 45 minutes.
Answer:
Please Mark as Brainliest!!
Step-by-step explanation:
The car will travel 30 2/3 miles in 45 minutes.
The car will travel 40 miles in 1 hour
Can you help me
(1). If f(x)=|x−5|+3, find f(2).
11
6
4
0
(2). If f(x)=8−3|x+2|, find f(−6).
−16
−4
4
20
(3). What is the turning point of the graph of f(x)=|x−2|+3?
(2, −3)
(2, 3)
(−3, 2)
(3, 2)
(1).
f(x) = |x − 5| + 3
f(2) = |2 − 5| + 3 = |−3| + 3 = 3 + 3 = 6
(2).
f(x) = 8 − 3|x + 2|
f(−6) = 8 − 3|−6 + 2| = 8 − 3|−4| = 8 − 3·4 = 8 − 12 = − 4
(3).
For f(x) = |x − h| + k the turning point is (h, k), so:
f(x) = |x − 2| + 3 ⇒ the turning point is: (2, 3)
The value of f (2) will be;
⇒ f(2) = 6
The value of f (- 6) will be;
⇒ f(-6) = 4
The turning point of the graph will be;
⇒ (2, 3)
What is an expression?
Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
1) The function is,
⇒ f(x) = |x−5| + 3
2) The function is,
⇒ f(x) = 8 - 3 |x+ 2|
3) The function is,
⇒ f(x) = |x−2| + 3
Now,
1) The function is,
⇒ f(x) = |x−5| + 3
Put x = 2;
⇒ f (2) = |2 - 5| + 3
⇒ f (2) = 3 + 3
⇒ f(2) = 6
2) The function is,
⇒ f(x) = 8 - 3 |x+ 2|
Put x = - 6;
⇒ f (- 6) = 8 - 3 |- 6 + 2|
⇒ f (-6) = 8 - 3 × 4
⇒ f(-6) = 8 - 12
⇒ f (- 6) = - 4
3) The function is,
⇒ f(x) = |x−2| + 3
We know that;
Turning point of the function f (x) = |x - h| + k are (h, k)
So, By comparing we get;
The turning point of the graph of f(x) = |x−2| + 3 are (2, 3).
Thus, The value of f (2) will be;
⇒ f(2) = 6
The value of f (- 6) will be;
⇒ f(-6) = 4
The turning point of the graph will be;
⇒ (2, 3)
Learn more about the mathematical expression visit:
brainly.com/question/1859113
#SPJ2
[Image: Vertical number line ranging from negative 5 to 5.]
On this number line, zero represents sea level. Plot the following points based on the description provided.
• -3 1/2
[Image: Vertical number line ranging from negative 5 to 5.]
On this number line, zero represents sea level. Plot the following points based on the description provided.
• opposite of –5
Answer:
Positive 5.
Step-by-step explanation:
Opposite of negative 5 is positive 5.
The point will be on the positive side, which is above sea level. So it will be on 5 above the zero.
Answer:positive 5
Step-by-step explanation:
Write the equation of the graphs which have m=2, c = 1
Answer:
y = 2x + 1
Step-by-step explanation:
formula for equation of graph:
[tex]y = mx + c[/tex]
substitute m = 2 and c = 1 into the equation
[tex]y = 2x + 1[/tex]
Step-by-step explanation:
please see it my step work solution
Factor the binomial: x^2 - 8x
Answer:
x2+8x+15=(x+5)(x+3)
Step-by-step explanation:
Trinomials have the form: ax2+bx+c. When factoring trinomials where a=1
Answer:
x(x - 8)
Step-by-step explanation:
First, factor out an x from both terms:
x² - 8x
x(x - 8)
So, the factored form of the binomial is x(x - 8)
plz help me, thank you
A bacteria culture starts with 40 bacteria and the number doubles every 20 mins.
write an equation of an exponential function that models the described situation.
plz show me the working.
Answer:
[tex]P=40(1.03526)^{t}[/tex]
Step-by-step explanation:
Exponential Growth
The natural growth of some magnitudes can be modeled by the equation:
[tex]P=P_o(1+r)^{t}[/tex]
Where P is the actual amount of the magnitude, Po is its initial amount, r is the growth rate and t is the time.
The initial number of bacteria is Po=40 and it doubles (P=2Po) at t=20 min. With that point we can find the value of r:
[tex]2P_o=P_o(1+r)^{20}[/tex]
Simplifying:
[tex](1+r)^{20}=2[/tex]
Solving for 1+r:
[tex]1+r=\sqrt[20]{2}[/tex]
[tex]1+r=1.03526[/tex]
The exponential function that models the situation is:
[tex]\mathbf{P=40(1.03526)^{t}}[/tex]
A.) what is the domain?
B.) what is the range?
C.) is this relation a function?
Answer:
The Domain is the set of all points over which a function is defined.
The range is the set of values the function takes on as output.