5 points
1.Mary has been saving her weekly allowance for the past 20 weeks. She
started with $100 and now has $300. Which equation can be used to find
the amount of money Mary receives for her weekly allowance? (7.10 A)
O A. 100 = 300 + 20%
B. 300 - 100x = 20
C.300 = 100 + 20x
D. 300 = 100 – 20x
ima go with B my dude good luck
Dao receives an employee discount on the purchase of a new automobile. The automobile that he is interested in has a
sticker price of $18,560. If his discount is 18 percent, what is the price that Dao will pay?
O $3,340.80
$3,712.00
$12,992.00
$15,219.20
Answer: It’s $15,219.20
a.k.a D at least that’s what it says on mine
Step-by-step explanation:
Hope this helps and just answered question correct on edg so yea
Please answer this...
Answer and Step-by-step explanation:
The equation would be y = 5x + 75
Now, plug in 1, 2, 6, and 12 for x (which represents the hours) and solve for y (which represents the price).
1 hour - $80
2 hours - $85
6 hours - $105
12 hours - $135
Which expression forms an equation with the given expression?
8 • 7 - 4 =
Evalúa las siguiente expresión algebraica,
considerando que: a=2, b=-3, c=1, d=-2 *
*
2ac + 5bd
Answer: 34
(2)(2)(1) + (5)(-3)(-2) = 34
4 + 30 = 34
Answer:
2·2·1+5·(-3)·(-2)= 34
Step-by-step explanation:
A cube-shaped gift box has a volume of 421.875 cubic inches. Solve s^3=421.875 to find the length s of one side of the box.
Answer:
7.5 inch
Step-by-step explanation:
[tex]{s}^{3} = 421.875 \\ s = \sqrt[3]{421.875} \\ s = 7.5 \: inch[/tex]
can someone please help me with this question
Answer:6
Step-by-step explanation:
What temperature does the thermometer show?
[tex]\huge\boxed{-2^o}[/tex]
___________________________________________________________
[tex]\boxed{Explanation}[/tex]
The red goes past [tex]-5^o[/tex] and if you count the lines it goes up to [tex]-2^o[/tex].
___________________________________________________________
Hope it helped!
May i have brainliest?
[tex]\huge\boxed{Thanks,\;Plip.}[/tex]
What are the solutions to this equation?
x² – 108 = 13 Pleasee HELP ASAP
Answer:11
Step-by-step explanation:
x^2-108 =13
+108 +108
x^2=121
2√x= √121
x=11
Which side of triangle XYZ is the longest. x=62, y=55, and z=63
Answer: XY should be the answer
Step-by-step explanation: A guess I took and got right
what is 715 divided by 6
Answer:
119.166667
Step-by-step explanation:
Did math on calculator.
Answer:
119.166666667
Step-by-step explanation:
What is 3.4 × 10^-6 in standered notation
what is 4x=8 proof reason
Answer:
x=2
Step-by-step explanation:
4x=8
/4 /4
divide both sides by 4
x=2
Answer:
x = 2
Step-by-step explanation:
divide both sides by 48÷4 = 2I’m so confused please explain and help! The most explanation with the reasonable answer gets BRAINLIEST
Answer: I say Mike because when you multiply it you end up getting 4 for Mike
Step-by-step explanation:
Answer:
pete ran the furthest at 4 miles
Step-by-step explanation:
pete = 4
jan=3.33
cissy=2.1
mike=2.4
Find the value of x. Photo provided.
f(x)= (x - 1)^2+2
Graph the function and identify the axis is symmetry
Answer:
f(x)= (x - 1)^2+2 = 1
Step-by-step explanation:
Write F ( x ) = ( x − 1 ) 2 + 2 as an equation.
y=(x−1)2+2
Use the vertex form, y = a ( x − h )^2 + k , to determine the values of a , h , and k .
a = 1
h = 1
k = 2
Since the value of a is positive, the parabola opens up. Opens Up
Find the vertex ( h , k ) .
(1,2)
Find p , the distance from the vertex to the focus.
[tex]\frac{1}{4}[/tex]
( 1, [tex]\frac{9}{4}[/tex] )
Find the axis of symmetry by finding the line that passes through the vertex and the focus.
x = 1
I hope this helps.
Will give brainliest. please help me. Select all that are equal to 6^4(6^-5). check all that apply.
A. 1/6^-1
B. 1/6
C. 6^-1
D. 1/6^1
E. 1/-6
PLZ HELP!!!!! DUE TODAY! 50 POINTS & BRAINLIEST FOR SOMEONE WHO CAN EXPLAIN TO ME WHAT I DID WRONG!!!!!!
p.s. thank you in advance!
Answer" it is -34 because I added my x and my y
Step-by-step explain;
Answer:
Bro it's right they are wrong unless you are not giving all the information unless what they wanted you to do is do 12 + 10 as the answer
Step-by-step explanation:
6/x + 8/x+5 = 3
What is x
Answer:
x = -7
Step-by-step explanation:
6/x + 8/x + 5 =3
5x + 14 /x =3
Step 1: Multiply both sides by x.
5x+14=3x
5x+14−3x=3x−3x(Subtract 3x from both sides)
2x+14=0
2x+14−14=0−14(Subtract 14 from both sides)
2x=−14
2x
2
=
−14
2
(Divide both sides by 2)
x=−7
Check answers. (Plug them in to make sure they work.)
x=−7(Works in original equation)
Answer:
-7
Step-by-step explanation:
Solve for
x
by cross multiplying.
x
=
29
A sociologist randomly selects single adults for different groups of three, and the random variable x is the number in the group who say that the most fun way to flirt is in person. Determine whether a probability distribution is given. If a probability distribution is given, find its mean and standard deviation. If a probability distribution is not given, identify the requirements that are not satisfied. x P(x) 0 0.087 1 0.344 2 0.415 3 0.154
Answer:
Yes the table shows a probability distribution
The mean is [tex]E(X) = 1.636 [/tex]
The standard deviation is [tex]\sigma = 0.845 [/tex]
Step-by-step explanation:
From the question we are told that
The data given is
x 0 1 2 3
P(x) 0.087 0.344 0.415 0.154
Generally we can evaluate [tex]P(x) * x[/tex] as
[tex]P(x) * x[/tex] 0 (1 * 0.344 ) (2 * 0.415) (3 * 0.154 )
=> [tex]P(x) * x[/tex] 0 0.344 0.830 0.462
Generally we can evaluate [tex]P(x) * x^2 [/tex] as
[tex]P(x) * x^2 [/tex] 0 [tex ](1^2 * 0.344 )[/tex] [tex ](2^2 * 0.415)[/tex] [tex ](3^2 * 0.154 )[/tex]
=> [tex]P(x) * x^2 [/tex] 0 [tex] 0.344 [/tex] [tex ]1.66 [/tex] [tex]1.386[/tex]
Generally the mean is mathematically represented as
[tex]E(X) = \sum [x* P(x)][/tex]
[tex]E(X) = 0 + 0.344+ 0.830+0.462 [/tex]
[tex]E(X) = 1.636 [/tex]
Generally the standard deviation is mathematically represented as
[tex]\sigma = \sqrt{V(X)}[/tex]
Here [tex]V(X)[/tex] is the variance which is mathematically represented as
[tex]V(X) = [E(X^2) ]- [E(X)]^2[/tex]
Here
[tex]E(X^2) = \sum [x^2 * P(x)][/tex]
[tex]E(X) =0 +0.344+1.66+1.386 [/tex]
[tex]E(X) = 3.3900 [/tex]
So
[tex]V(X) = 3.3900 - [1.636]^2[/tex]
[tex]V(X) = 3.3900 - 2.6764[/tex]
[tex]V(X) = 0.7136[/tex]
So
[tex]\sigma = \sqrt{0.7136}[/tex]
[tex]\sigma = 0.845 [/tex]
What is the equation for the line in slope-intercept form?
Enter your answer in the box.
Answer:
y= -2 + 4
Step-by-step explanation:
Answer: y = -2x - 4 is the actual answer
Step-by-step explanation: The other person is wrong i did that answer and it was wrong.
more math. mann I hate this
Answer:
19 miles
Step-by-step explanation:
If they had to ride 342 split by 18 horses, divide 342 by 18 to get 19
Answer:
They rode 19 miles before replacing each horse.
Step-by-step explanation:
This problem can be represented as:
[tex]\frac{342 miles}{18 horses}[/tex]
To find the number of miles per horse simply divide 342 by 18. You will get your answer of:
[tex]\frac{19 miles}{1 horse}[/tex]
Write a quadratic function in standard form with zeros 1 and -10
Answer:
f(x)=x^2+9x-10
Step-by-step explanation:
Standard Form of Quadratic Function
The standard form of a quadratic function is:
[tex]f(x)=ax^2+bx+c[/tex]
where a,b, and c are constants.
The factored form of a quadratic equation is:
[tex]f(x)=a(x-\alpha)(x-\beta)[/tex]
Where [tex]\alpha[/tex] and [tex]\beta[/tex] are the roots or zeros of f, and a is constant.
We know the zeros of the function are 1 and -10. The function is:
[tex]f(x)=a(x-1)(x-(-10))[/tex]
[tex]f(x)=a(x-1)(x+10)[/tex]
Operating:
[tex]f(x)=a(x^2+10x-x-10)[/tex]
Joining like terms:
[tex]f(x)=a(x^2+9x-10)[/tex]
Since we are not given any more restrictions, we can choose the value of a=1, thus. the required function is:
[tex]\boxed{f(x)=x^2+9x-10}[/tex]
Solve the equation:
t+3/3 = 11
Answer:
t = 2
Step-by-step explanation:
3 times 3 = 9 and 11 minus 9 equals 2
Use the figure at the right for Exercises 1-4
1) Name a pair of vertical angles.
Name a pair of adjacent angles with vertex M.
3) Name a pair of adjacent angles with vertex S.
N
4) Name a linear pair.
Answer:
Use the figure at the right for Exercises 1-4
1) Name a pair of vertical angles.
Name a pair of adjacent angles with vertex M.
3) Name a pair of adjacent angles with vertex S.
N
4) Name a linear pair.
Step-by-step explanation:
please help! will give brainliest!! financial lit.!
The law of supply states that producers will supply _____ goods or services when the price is _____.
a. fewer; high
b. better; high
c. fewer; low
d. more; low
Answer:
b. better; high
Step-by-step explanation:
Robert wants to buy a new coat for $117.
He was offered a discount on this price of 25%.
He then has to pay 8.75% sales tax on the discounted price.
Which expression represents the best strategy for estimating the final cost of the coat?
Answer Choices:
A.120 ×0.75 ×1.1
B.120×0.25×0.9
C.120× 0.25× 1.1
D.120× 0.75 ×0.9
Answer
A.)
(117·0.25)=n
117-n=87.75·0.0875=m
87.75+m=95.43
Step-by-step explanation:
117-25%=87.75+8.75%=95.43
PLZ ANSWER QUICK:
The graph shows two lines, A and B:
A graph is shown with x- and y-axes labeled from 0 to 6 at increments of 1. A straight line labeled A joins the ordered pair 3, 0, and the ordered pair 0, 6. Another straight line labeled B joins the ordered pair 0, 0, and the ordered pair 5, 5.
Based on the graph, which statement is correct about the solution to the system of equations for lines A and B?
0, 6) is the solution to both lines A and B.
(0, 6) is the solution to line B but not to line A.
(2, 2) is the solution to both lines A and B.
(2, 2) is the solution to line A but not to line B.
Answer: Choice D
(2,2) is the solution to line A, but not to line B
==========================================================
Explanation:
Let's find the equation of line A
First we need the slope
m = (y2-y1)/(x2-x1)
m = (6-0)/(0-3)
m = 6/(-3)
m = -2
Since the point (0,6) is on line A, we know b = 6 is the y intercept.
The equation of line A is y = -2x+6.
-----------------------------
Let's find the equation for line B
So we need the slope
m = (y2-y1)/(x2-x1)
m = (5-0)/(5-0)
m = 5/5
m = 1
The y intercept is b = 0 since the line goes through (0,0)
The equation of line B is y = 5x+0 which is the same as y = 5x.
------------------------------
Our system of equations is
[tex]\begin{cases}y = -2x+6\\y = 5x\end{cases}[/tex]
We can see that plugging x = 0 into line A's equation leads to y = 6. So (0,6) is on line A. However, the point (0,6) is not on line B because plugging x = 0 leads to y = 0.
This allows us to rule out choices A and B.
--------------------------------
Let's see what happens when we plug in x = 2 to line A
y = -2x+6
y = -2*2+6
y = -4+6
y = 2
The point (2,2) is on line A
Now let's do the same for line B
y = 5x
y = 5*2
y = 10
The point (2,10) is on line B meaning that (2,2) is not on line B.
We can rule out choice C and conclude that choice D is the final answer.
Side note: Choice D should read "(2,2) is a solution" instead of "(2,2) is the solution" since there are infinitely many solutions on any given line. So another solution for example would be (0,6).
Payton is playing a video game . in one scene , she loses 10.5 health points. in the next scene she gaind 4.5 health points . what is the overall increase or decrease to Payton's health points?
Answer:
-10.5 + 4.5 = -6
So decrease of 6
Let's find 1/2 - 1/6. First, write the subtraction so the fractions have denominator . Then subtract. 1/2 - 1/6 = blank/6 - 1/6 blank/blank
Answer:
1/3 or 0.3 (repeating decimal)
Step-by-step explanation:
The subtraction the fractions gives 1/3.
What is a fraction?The fractions include two parts, numerator and denominator.
Numerator: It is the upper part of the fraction, that represents the sections of the fraction.
Denominator: It is the lower or bottom part that represents the total parts in which the fraction is divided.
Given that are two fractions 1/2 and 1/6, we need to subtract them,
Firstly, equating the denominators,
1/2 = 6/12
1/6 = 2/12
Therefore,
1/2 - 1/6 = 6/12 - 2/12
= (6-2)/12
= 4/12
= 1/3
Hence on subtracting the fractions we get 1/3.
Learn more about fractions click;
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