Answer:
B -15
Step-by-step explanation:
Answer:
-15
Step-by-step explanation:
she has -15
Which table of ordered pairs represents a proportional relationship?
hello there!
it would be C
because
6/3=2 and 2*5=10 and 7*2=14
hope this helps
have a fantastic day/night
Find the Error What error did the student make when solving the equation: 5x + 6 = 66 5x - 6 = 66 -6 5x = 60 5*5x= 60*5 X = 300 The student subtracted 6 from both sides instead of adding Student multiplied by 5 Vinstead of dividing by 5 Student got the wrong answer when subtracting 66-6 The student did not correctly eliminate the variable from one side of the equation
Answer:
The student multiplied by 5 instead of dividing by 5
Step-by-step explanation:
At the fourth step, the student multiplied each side by 5 rather than dividing it by 5. The opposite opperation from multiplication is division so they should have divided 5x and 60 by 5 here instead of multiplying it by 5. If this equation was done correctly, the correct answer would be x=12.
Someone please help me with these too://
Answer:
1.
The slope is 2
The y-intercept is -10
equation: y = 2x - 10
2.
Slope: 2.5
y-intercept: 1
Equation: y = 2.4x + 1
Step-by-step explanation:
1.
x y
2 12
4 16
8 24
10 28
from 12 to 16 you add 4
from 2 to 4 you add 2
y/x = 4/2 = 2
The slope is 2
The y-intercept is -10
equation: y = 2x - 10
I got the y-intercept because I went from 12 to 0 which is -12, and then 2 - 12 and it's -10
__________________________________________________________
2.
x y
5 4
20 10
30 14
35 16
from 4 to 10, u add 6
from 5 to 20 you add 15
y/x = 15/6 = 2.5
Slope: 2.5
y-intercept: 1
Equation: y = 2.4x + 1
I got the y-intercept because I went from 4 to 0 which is -4, and 5 - 4 is 1.
Hope this helped
To edit a manuscript, Miguel charges 12 dollars per hour for the first 4 hours and 15 dollars per hour after the first 4 hours. Write an expression for the amount, in dollars, Miguel charges if it takes him t hours to edit a manuscript, where t>4 ?
Answer:
C = 12 + 15(x - 4)
C = 15x - 48
Step-by-step explanation:
Let the number of hours = t
The total amount Miguel earns =
C
To edit a manuscript, Miguel charges 12 dollars per hour for the first 4 hours and 15 dollars per hour after the first 4 hours.
C = 12 + 15(x - 4)
Expand the t
C = 12 + 15x - 60
C = 15x - 48
Therefore, an expression for the amount, in dollars, Miguel charges if it takes him t hours to edit a manuscript, where t>4 is given as:
C = 15x - 48
John sales model boats from a booth at a local fair. He purchases each model boat from a distributor for five dollars and the local fair chargers him a baby and $80 John cells each model boat for $50. Write a system of equations to represent the situation
Answer and explanation:
Profit from sale of model boats = Sales -costs(costs of goods purchases + expenses or charges by the local fair)
John's profit from the sale of model boats can be represented by the equation:
P= 50x-(5x+80)
Where P is profit from the sale of the model boats and x is number of model boats bought and sold. The 80 is constant as it is a fixed cost paid to the local fair.
For example if John buys and sells 20 model boats, he would make profit of:
Substitute x=20 in equation above
P= 50×20-(5×20+80)
P=1000-180
P=$820
It could be said that John is in a very profitable business and his profit is also dependent on volume of sales because the lower his sales the closer he gets to making a loss and not profit
An isoceles triangle has two long sides and one short side. The short side is half the length of a long side. If the perimeter of the triangle is 15cm, find the length of the short side
Answer:
3cm
Step-by-step explanation:
so the long sides are 6cm and the short sides are 3cm
Simplify the expression below.
Answer:
[tex]\displaystyle 6[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
[tex]\displaystyle \frac{7^2 - 13}{24 - 18}[/tex]
Step 2: Evaluate
[Fraction] Exponents: [tex]\displaystyle \frac{49 - 13}{24 - 18}[/tex][Fraction] Subtract: [tex]\displaystyle \frac{36}{6}[/tex][Fraction] Divide: [tex]\displaystyle 6[/tex]need help with this question!!!
Answer:
36° and 54°
Step-by-step explanation:
Let one of the acute angle be "x"
We are told that the other acute angle is 1.5 times the other angle = 1.5x
The right angle = 90°
Find the value of x:
Therefore:
90 + 1.5x + x = 180 (sum of interior angles of triangle)
Add like terms
90 + 2.5x = 180
2.5x = 180 - 90
2.5x = 90
x = 90/2.5
x = 36° (one acute angle)
✔️Second acute angle = 1.5x
Plug in the value of x
= 1.5(36)
= 54°
You need to solve for x.
I'm pretty sure it's 28 but sorry if I'm wrong it might be 44
Solve the equation for all values of x by completing the square.
x² – 18x= -66
Answer:
x=12.87298334
Step-by-step explanation:
A local little league has a total of 60 players, of whom 20% are right handed. How many right handed players are there.
Answer:
12
Step-by-step explanation:
60 x 20% = 12
Answer:
12
Step-by-step explanation:
Ok so, 67 out of 206 species of birds found in the Badlands nest there. 824 species were found in the Badlands. How many of those nest there?
Answer: 268
Step-by-step explanation:
From the question, we are informed that 67 out of 206 species of birds found in the Badlands nest there and that 824 species were found in the Badlands. The number of those that nest there would be:
= 67 × 824/206
= 67 × 4
= 268
Fill in the missing number in this newspaper report:
Houses cost £150000 one year ago
They now cost £
This is a 25% increase
Answer:
£187,500
Step-by-step explanation:
Cost of houses one year ago = £150000
Percent increase a year after = 25%
Increment = 25% * 150000
Increment = 0.25 * 150000
Increment = £37500
New cost of house after increment = £150000+ £37500
New cost of house after increment = £187,500
Write an explicit formula for an, the nth term of the sequence 75, 15, 3, ....
Answer:
aₙ = 75 x 0.2ⁿ⁻¹ or 75 x (1/5)ⁿ⁻¹
Step-by-step explanation:
a₁ = 75
a₂ = 75 x 0.2¹ = 75 x 0.2 ²⁻¹ = 15
a₃ = 75 x 0.2² = 75 x 0.2³⁻¹ = 3
.......
aₙ = 75 x 0.2ⁿ⁻¹ or 75 x (1/5)ⁿ⁻¹
Is A ABC-A DEP? If so, identify the similarity postulate or theorem that
applies.
A. Similar - SAS
B. Similar - SSS
C. Similar - AA
D. Cannot be determined
Answer:
The similarity postulate that applies is;
C. Similar - AA
Step-by-step explanation:
The given parameters are;
ΔABC with angles ∠BAC = 30°, ∠ABC = 100° and ∠BCA = 50°
ΔDEF with angles ∠EDF = 30°, ∠DEF = 100° and ∠DFE = 50°
Therefore, the interior angles of ΔABC are equal to the corresponding interior angles of ΔDEF, which satisfies the Angle-Angle (AA) condition for similarity of two triangles based on the congruency of two interior angles of one triangle to two interior angles of the other triangle.
In a room of 200 people, 22% have blue eyes. How many people have blue eyes?
Answer: 44 people
Step-by-step explanation: 200 x .22=44
g(t) = (t 1)2 = 20.25
1) What are the zeros of the function?
Write the smaller t first, and the larger t second.
Answer:
The zeros are (-5.5, 0) and (3.5, 0).
Step-by-step explanation:
g(t) = (t + 1)² − 20.25
0 = (t + 1)² − 20.25
20.25 = (t + 1)²
±4.5 = t + 1
t = -1 ± 4.5
t = -5.5 or 3.5
In an electronics store, an iPod is $75. The sales tax is 7.5%. What is the cost of the iPod?
Answer:
$80.625
Step-by-step explanation:
$75 for the iPod times 0.075 = 5.625 which is the sales tax.
Then $75 (Cost of iPod) + 5.625 (Sales Tax) = $80.625 (Price of the iPod including the sales tax)
Sorry, if I am wrong. I tried my best and Hope this helps ;)
Lori wants to put a tarp over their family's circular pool to keep the leaves out. The pool has a diameter of 20 feet. How many square feet of blanket does she need? Use 3.14 for \piπ.
Answer:
314 sq.feet
Step-by-step explanation:
r= 10 feet
as you know r= d/2
As pool is circular
Area of circle = πr^2
Area of circle= 3.14*10^2 = 314square feet
Helppp +star & +15 points
Answer:
y=1
Step-by-step explanation:
the slope is 0 and the y-intercept is 1, so y=0x+1, y=1
Please help!!:
1. Write the equation of a line that is perpendicular to y= -1/3 x+6 and passes through the point (3,5).
2. Write the equation of a line that is parallel to y = 2x – 4 and passes through the point (-3, 4).
ack plots points showing equivalent ratios on the coordinate plane below.
m c 0 16- 1. g
Which ordered pair, if plotted above, would represent a ratio that is equivalent to those shown?
(1, 9)
(3, 9)
(4, 18)
Answer:
(4, 18)
Step-by-step explanation:
Show your work to evaluate g(f(x)) if f(x)=x+2/2 and g(x)=1x−1
Answer:
x/2.
Step-by-step explanation:
We replace the x in g(x) by f(x):
g(f(x)) = 1((x + 2/2) - 1
= (x + 2)/2 - 1
= (x + 2 - 2)/2
= x/2.
Answer:
x/2
Step-by-step explanation:
g(f(x)) = (x+2/2) - 1
= [tex]\frac{x+2}{2}[/tex] - [tex]\frac{2}{2}[/tex]
= (x + 2 - 2) / 2
= x/2
A jewelry artist is selling necklaces at an art fair. It costs $135 to rent a booth at the fair. The cost of materials for each necklace is $4.50. The artist is selling the necklaces at $12 each. The inequality 12n>135+4.50n represents the situation in which the artist makes a profit. a) Will the artist make a profit if she sells 15 necklaces?
Answer: No
Step-by-step explanation:
$12-$4.50= $7.50
$7.50*15= $112.50
The Total cost is $135 She will only be making $112.50 in profits.
Help me with this too please hrlp
Answer:
3 * 10^4
Step-by-step explanation:
Here, we want to make a division
We want to divide 9 * 10^2 by 3 * 10^-2
That would be;
(9 * 10^2)/(3 * 10^-2)
= 9/3 * 10^2-(-2)
= 3 * 10^4
If Buddy the Elf stands 6'3" tall and looks up at the Empire State Building (1454' high), what is the angle of elevation if Buddy is 206' from the base of the Empire State Building?
Answer:
Step-by-step explanation:
If Buddy the Elf stands 6'3" tall and looks up at the Empire State Building (1454' high), what is the angle of elevation if Buddy is 206' from the base of the Empire State Building?
We are to find the angle of elevation which is calculated using the Trigonometric function of Tangent.
tan θ = Opposite/Adjacent
Where:
Opposite = 1454'
Adjacent = 206
tan θ = 1454'/206
During the first six months of the year, the car dealership sold 47 cars, 53 cars, 62 cars, 56 cars, 46 cars, and 48 cars. What was the average number of cars sold per month during the first six months of the year?
Answer:
52 cars
Step-by-step explanation:
During the first six months of the year the car dealership sold
53 cars
47 cars
62 cars
56 cars
46 cars
48 cars
Therefore the average number of cars sold per month can be calculated as follows
= 53+47+62+56+46+48/6
= 312/6
= 52
Hence an average of 52 cars is sold monthly
Payton read 1/6 of a book in 1/4 of an hour how much does Payton read in 1 hour
Answer:
4/6 of a book in an hour
Step-by-step explanation:
1/6 = 1/4
1/4 x 4/1 = 1
1/6 x 4/1 = 4/6
Bam! UwU
Lol Hope This Helps !
how do I simplify the expression -2.4+0.5f-14-4
9514 1404 393
Answer:
0.5f -20.4
Step-by-step explanation:
There is only one term containing a variable (0.5f), but there are three constant terms. The constant terms can be combined by finding their sum in the usual way.
-2.4 +0.5f -14 -4
= 0.5f -(2.4 +14 +4)
= 0.5f -20.4
What is the solution to 3|-3x+9|=-18?
Answer:
There is no solution to the problem.
Step-by-step explanation:
Key skills: Absolute Value, Division, One Variable Equation
1) We have the equation 3|-3x+9|=-18
2) First, divide by 3 on both sides.
-18/3 is -6
3) This means --> |-3x+9| = -6
4) Absolute Value cannot be negative so there is no solution.
Hope you understood and have a nice day!! :D