Answers
Answer:
y = -0.25x + 4.5
Step-by-step explanation:
hope this helps :D pls mark brainliest :D
Related Questions
Amanda found a job that pays $450 per week. She must pay a fee to the employment agency of 15% of her first three week’s pay. How much does she need to pay the employment agency?
Answers
Answer:
192.5
Step-by-step explanation:
amount of money for one week = 450
amount of money for 3 weeks = 1350
15 percent of 1350 = 1350 x 15
= 19250
divide 19250 by 100
answer is 192.5
---------------------------------------------------------------------------
Process:
$450 per week——
amount of money for three week’s pay=3×450=1350
amount of money for the 15% fee=1350×15%=202.5
So the answer is 202.5
Wish this will help. (^ - ^)
You need to solve a system of equations. You decide to use the elimination
method. Which of these is not allowed?
Answers
The step that is not allowed is (b) add the left side of equation 2 to the left side of equation 1
How to determine the disallowed step?The system of equations is given as:
2x - 3y = 12
-2x + y = 8
Adding the two equations would eliminate x.Multiplying the second equation by 3 and then subtracting the resulting equation from (1) would eliminate yThis means that the step that is not allowed is (b)
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a women bought some large frames for $18 each and some small frames for $7 each at a close out sale. If she bought 14 frames for $153, find how many of each type she bought.
Answers
The number of large frame bought by women are 5 and small frames are 9.
What is defined as the linear equation in two variables?Linear equations in two variables are equations with one, even no, or infinitely many solutions in which each of a two variables has the highest exponent order of 1. A two-variable linear equation has the standard form ax + by + c = 0, where x and y are the variables.Let 'x' be the number of large frames.
Let 'y' be the number of small frames.
The concepts used is;
money + money = money and
number of small frames + number of large frames = total number of frames.
Cost of each small frame is $7.
The cost of each large frame is $18.
Total cost is $153.
The system of equations are formed as;
$18y + $7x = $153 ........equation 1.
x + y = 14
y = 14 - x .....Put this in equation 1.
$18y + $7x = $153
18(14 - x) + 7x = $153
252 - 18x + 7x = 153
11x = 99
x = 9
y = 14 - 9 = 5
Thus, the number of large frame bought by women are 5 and small frames are 9.
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A ball is drawn randomly from a jar that contains 7 red balls, 5 white balls, and 4 yellow ball. Find the probability of the given event.
Answers
Missing Part:
a. A red ball is drawn
b. A white ball is drawn
Answer:
a. [tex]P(Red) = 0.4375[/tex]
b. [tex]P(White) = 0.3125[/tex]
Step-by-step explanation:
Given
[tex]Red = 7[/tex]
[tex]White = 5[/tex]
[tex]Yellow = 4[/tex]
First, we need to calculate the total
[tex]Total = Red + White + Yellow[/tex]
[tex]Total = 7+5+4[/tex]
[tex]Total = 16[/tex]
Solving (a): Probability of Red.
This is calculated by dividing number of red balls by the total
So:
[tex]P(Red) = \frac{Red}{Total}[/tex]
[tex]P(Red) = \frac{7}{16}[/tex]
[tex]P(Red) = 0.4375[/tex]
Solving (a): Probability of White.
This is calculated by dividing number of white balls by the total
So:
[tex]P(White) = \frac{White}{Total}[/tex]
[tex]P(White) = \frac{5}{16}[/tex]
[tex]P(White) = 0.3125[/tex]
Find the solution to the system. Write your solution as an ordered pair (x,y) with no spaces, no solution, or infinitely many. y=4x and 3x+2y=55 * what solution is it
Answers
Answer:
svkjhpwheqigjufhwqieweho87qrf
Step-by-step explanation:
3x+2(4x)=55
11x=55
X=5
Y=20. (4x)
HELPP!!
Write a system of equations modeling the given conditions. Then solve the system by the substitution method and find the two numbers.
The difference between two numbers is 3. The sum of the larger number and twice the smaller number is 21. Find the numbers.
Answers
System of equations:
x - y = 3
x + 2y = 21
solving using substitution:
1. isolate one of the variables in one of the equations
x - y = 3
x = 3 + y
2. substitute 3 + y into the other equation
3 + y + 2y = 21
3. simplify
3 + 3y = 21
3y = 18
y = 6
4. substitute 6 back into one of the equations and solve for x
x - 6 = 3
x = 9
ok pls help this needs to be answered fast
what is an example of equasions when you are given the constant of poportionality
Answers
Answer:
the oeange will be there for u
Step-by-step explanation:
1 then 4 then 3 then 6 then 2
Which number has a six that is ten times the value of the six in 1.67?
A. 1.96
B. 6.07
C. 5.36
D. 9.62
Answers
Answer:
B. 6.07
HAS A SIX THAT IS TEN TIMES THE VALUE OF THE SIX IN 1.67
Find the value of x.
Answers
Answer:
54
Step-by-step explanation:
ΔABC and ΔJLK have two sets of congruent angles. Are these triangles congruent or not? How do you know?
Answers
Answer:
I think that yes they are, but I maybe wrong.
Step-by-step explanation:
I believe that this is true because of the Angle-Angle congruence theorem.
NEED HELPPP!!!! 20 POINTS WILL BE GIVEN..
Answers
Answer:
B.
Step-by-step explanation:
where would -10 appear on a number line
Answers
Answer:
negatives to the left of 0, positives to the right of 0.
16 × 2 1/2=? tell me you will get brainiest
Answers
Answer:
40.
Step-by-step explanation:
16 × 2 1/2= X
= 40.
Joy got a gift card for $10.25. Evelynne got a gift card that was 3 times the amount of Joy. Kaitlyn got a gift card for $1.50 more than Evelynne. How much was Kaitlyn’s gift card?
Answers
Mulitply 10.25 by 3 then add 1.50
Help me out on this question please
Answers
Answer:
[tex]your \: answer \: is \: option \: a[/tex]
I am sure about this answer.
Step-by-step explanation:
2/3 and 5/12
hope it helps..
pls mark as brainliest
17 Billie deposited three paychecks, one was $435.20 , one was $ 510.20 and the third one was $ 345.12 plus $142 cash into her checking account Her original balance was $ 225.30. Assuming all the checks clear, how much will be in his checking account after the deposits are made?
Answers
Answer:
$1,657.82
Step-by-step explanation:
435.20 + 510.20 + 345.12 + 142 + 225.30 = total checking balance
1,657.82
Which function is graphed?
Answers
Answer:
Option A
Step-by-step explanation:
The given piecewise function shows that there is a jump discontinuity at x=1 in the first part of the piecewise function. Hence, this means that for the first part of the piecewise function, x=1 isn't included, but in the second part of the piecewise function, it is.
We can therefore eliminate C and D.
Looking at the first part of the piecewise function, we can see as x grows smaller, y grows larger. Therefore, A is the more preferred answer because the domain x<1 is valid.
Raul received a score of 80 on a history test for which the class mean was 70 with standard deviation 10. He received a score of 75 on a biology test for which the class mean was 70 with standard deviation 2.5. On which test did he do better relative to the rest of the class?
Answers
Answer:
Raul performed better in the biology test
Step-by-step explanation:
Given
History
[tex]Score = 80[/tex]
[tex]Mean = 70[/tex]
[tex]Standard\ Deviation = 10[/tex]
Biology
[tex]Score = 75[/tex]
[tex]Mean = 70[/tex]
[tex]Standard\ Deviation = 2.5[/tex]
Required
Where did he perform better relative to other students
To do this, we simply calculate the z score in both tests and make comparison.
z score is calculated as thus;
[tex]z = \frac{x - Mean}{SD}[/tex]
For history;
[tex]z = \frac{80 - 70}{10}[/tex]
[tex]z = \frac{10}{10}[/tex]
[tex]z = 1[/tex]
For biology;
[tex]z = \frac{75 - 70}{2.5}[/tex]
[tex]z = \frac{5}{2.5}[/tex]
[tex]z = 2[/tex]
Since the z score in the biology test is greater than that of the history test, then he performed better in the biology test
PLEASE HELP ASAP. THANK YOU
Answers
Answer:
i think it is 15 for x
and i think it's 10 for y
Step-by-step explanation:
tell me if i'm wrong
The radius of a sphere is 3 inches. Which represents the volume of the sphere?
O 121 Cubic inches
O 367 cubic inches
O 641 cubic inches
O 817 cubic inches
Answers
Answer: A.
Step-by-step explanation: The formula for the volume of a sphere is 4/3 x pi x radius cubed. The final answer is approx 121.1, which rounds down to 121. Brainliest plz
The option that represents the volume of the sphere given the radius is 113.04 in³.
What is the volume of the sphere?The volume of the sphere is the space occupied within the sphere.
Volume of a sphere = 4/3 x pi x r³
4/3 x (22/7) x 3³ = 113.04 in³
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The Cost Saver Grocery Club sells sheet cakes. Each 1/8 sheet of cake requires 0.65 teaspoon of baking soda.
How much baking soda is needed for a full sheet cake? Show your work
Answers
The amount of baking soda needed for a full sheet cake is 5.20 teaspoons.
How many baking soda is needed?
A fraction is a non-integer that is made up of a numerator and a denominator that is separated by a horizontal line. The numerator is the number above the horizontal line and the denominator is the number below the horizontal line. An example of a fraction is 1/8.
In order to determine how much baking soda is needed for a full sheet cake, multiply the amount that is needed for 1/8 of the sheet cake by 8. Multiplication is the mathematical operation that is used to determine the product of two or more numbers.
Baking soda needed for a full sheet cake = 8 x 0.65 = 5.2 tablespoons
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Right triangle PQR is shown on the graph below. If the point (x, 7) lies on the line that goes through side of the trianglethen what should be the value of x?
A. -2
B. 5
C. -3
D. 3
Answers
Answer:
C. -3
Step-by-step explanation:
First, find the slope of side QR. Calculate the slope by finding the ratio of the difference between the y-coordinates and the difference between the x-coordinates of points Q and R.
The slope of side QR can be found as shown below.
Now, using the slope of side QR, draw a triangle RST similar to the right triangle PQR with S(x, 7) as one vertex.
Next, find the value of x as shown below.
Therefore, the value of x in the point (x, 7) is -3.
Which equation matches the function shown below?
Answers
Answer:
Step-by-step explanation:
Pick the two easiest points to deal with.
(0,4) and (2,0)
Find m
m = (y2 - y1)/(x2 - x1)
y2 = 4
y1 = 0
x2 =0
x1 = -2
m = (4 - 0)/(0 - - 2)
m = 4/2 = 2
Now use one of the points to find b
y = mx + b Use (0,4)
4 = 2*0 + b
b = 4
The equation you want is y = 2x + 4
Square root 8 natural number
Answers
Answer:
it's Not a perfect square because 3.9x2.9 is 8.41 which means it isn't a perfect square
Adrian was using a recipe for a large pie that required one-fourth of a tablespoon of sugar . Instead of making one large pie , Adrian decided to use the recipe to make 2 small pies . How much sugar should he use each of the 2 small pies ?
A. 1/3 of a tablespoon
B. 1/4 of a tablespoon
C. 1/8 of a tablespoon
D. 1/2 of a tablespoon
Answers
Answer:
probably B.
Step-by-step explanation:
if he just halves the recipe, then it would still be 1/4 tablespoon because he is making 2 pies.
Triangle ABC ~ Triangle DEF. Find the length of median FQ. Show how to solve. 25 points
Answers
The length of the median FQ in image of the two similar triangles is: 36.
How to Find the Median of Similar Triangles?The corresponding segments and median of similar triangles are proportional, therefore, we will have the following:
PC/FQ = PB/QE
Substitute
27/FQ = 18/24
FQ = (24 × 27)/18
FQ = 36.
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rational number or an irrational number.
-√64
15 pi
46.86 repeated
15/19
-2√6
Need help!
Answers
Answer:
-√64: rational
15 pi: irrational
46.86 repeated: rational
15/19: rational
-2√6: irrational
Step-by-step explanation:
From the picture that I used, I was able to find out which ones were rational and irrational.
-√64: rational because it equals to -8
15 pi: has "pi" in it
46.86 repeated: as long as it's repeated, it's rational
15/19: fractions are usually rational
-2√6: √6 is cannot be rationalized
Kevin ran 5 miles in 42 minutes. How many miles per hour did Kevin run? Round to the nearest tenth.
Answers
he ran a mile in 8.4 minutes. Step-by-step explanation:
Can you please explain this?
Answers
Answer:
? = -2
Step-by-step explanation:
a + b = -2
so, now we need to find all (a + b) combinations in the large expression.
for example, we know
a = -2 - b
or b = -2 - a
and then
-b = 2 + a
but also
3b = -6 - 3a
so that
a - b = a + 2 + a = 2a + 2
therefore
(a + b)(a - b) = a² - b² = -2(2a + 2) = -4a - 4
(-4a - 4 - 12b - 36)/(-4a - 4 - 6a - 6b) =
(-4(a + 3b) - 40)/(-4a - 4 - 6(a + b)) =
(-4(a - 6 - 3a) - 40)/(-4a - 4 - 6×-2) =
(-4(-2a - 6) - 40)/(-4a + 8) =
(8a + 24 - 40)/(-4a + 8) = (8a - 16)/(-4a + 8) =
-2×(-4a + 8)/(-4a + 8) = -2
Find the complement of the set given that U = {x | x is in I and −3 ≤ x ≤ 9}.
{x | x is in I and −2 ≤ x < 5}
Answers
Answer:
Step-by-step explanation:
hello :
the complement of the set given that U = {x | x is in I and −3 ≤ x ≤ 9}is :
F = {x | x is in I and x <-3 or 9 < x}
same method for :{x | x is in I and −2 ≤ x < 5}
H={x | x is in I and x <-2 or 5 ≤ x}