Answer: it’s D 1/5
Step-by-step explanation: I took the test and got a 100
Use the linear combination method to solve the system of equations. Explain each step of your solution.
5x - y -= 3
x + 2y = 5
Answer:
1)y=-3+5x
2)y=5/2-1/2x
Step-by-step explanation:
for both equations
1) get your y by it self (subtract -5x and your new equation is now -y=-5x+3)
2)(reminder y can't be negative if it is negative) then you divide by -1 of both sides
3) your equation should now be y=5x-3
what does 3 1/2 + 3 3/4 + 5 1/2 equal to
What is the slope of this graph?
Rise
Run
Rise = 3
Run = 6
1
2
What is the reciprocal of
8/5
Answer:
0.025
Step-by-step explanation:
Answer: 0.025
Step-by-step explanation:
Andrea works as a cashier in a music store. A customer wants to buy a CD that is
on sale for 15% off the regular price of $14.00. This means she will pay 85% of
$14.00. How much will Andrea pay?
Answer:
$11.90
Step-by-step explanation:
first you change the percent to a decimal by moving the decimal two places and then multiply.
you multiply .85 and 14.00= 11.90
Answer:
$11.9
Step-by-step explanation:
The regular cost of the CD = $14:00
The discount she gets = 15%
So, 15% of $14 = 2.1
= $14 - $2.1 = $11.9
Another method:
Or u can take 85% of $14 and u will get the immediately
85% of $14 = $11.9
-7 + (-9) - (-11) -2
Carter has a piece of leather measuring 9/10 feet long he needs to cut the leather into pieces measuring 1/5 for each how many pieces will he have
Answer:
first make 1/5 into 2/10 it will help
Step-by-step explanation:
The perimeter of a right triangle is 60 feet and the area is 150 square feet. If the lengths of the sides of the triangle are each multiplied by 10, what is the perimeter of the new right triangle? A. 500 ft. B. 600 ft. C. 7120 ft. D. 8640 ft.
Answer:
B. 600 ft
Step-by-step explanation:
The formula for the Perimeter of a right triangle = Side a + Side b + Side c
The perimeter of a right triangle is 60 feet
If the lengths of the sides of the triangle are each multiplied by 10, what is the perimeter of the new right triangle?
Hence, the perimeter of the new right triangle = 10 × 60ft
= 600ft
Option B is the correct Option.
Answer:
600
Step-by-step explanation:
which two whole number is 15/4 between? LOOK AT PICTURE
Chick-fil-A has three drive-thru lanes. Depending on the day and time of day, they sometimes
close all or some of the lanes. Let the random variable X represent the number of lanes that
are open on a randomly selected time during the week. The table shows the probability
distribution of X.
Part (a): What is the probability that at least one lane is open at a randomly selected time?
Part (b): What is the expected value of number of open lanes at a randomly selected time?
Part (c): What is the probability that all three drive-thru lanes are open, given that at least one lane is open?
Part (d): Given that at least one drive-thru lane is open, would the expected value of the number of open lanes be less than, equal to, or greater than the expected value from part b?
Answer:
Pls remind me am in a test I'll come back
This relation is an inverse variation. {(–1, 8), (4, –2), (–2, 4)} Which equation represents this relation?
Answer:
[tex]y = -\frac{8}{x}[/tex]
Step-by-step explanation:
Given
Inverse Variation:
[tex]Points: \{(-1, 8), (4, -2), (-2, 4)\}[/tex]
Required
Determine the equation of the relation
An inverse relation is represented as:
[tex]y = \frac{k}{x}[/tex]
Where k = constant of variation
Make k the subject:
[tex]k = xy[/tex]
When x = -1, y = 8
So, we have:
[tex]k = -1 * 8[/tex]
[tex]k = -8[/tex]
When x = 4, y = -2
[tex]k = 4 * -2[/tex]
[tex]k = -8[/tex]
When x = -2, y = 4
[tex]k= -2 * 4[/tex]
[tex]k = -8[/tex]
From above calculations, we've established that:
[tex]k = -8[/tex]
Substitute -8 for k in [tex]y = \frac{k}{x}[/tex]
[tex]y = \frac{-8}{x}[/tex]
[tex]y = -\frac{8}{x}[/tex]
Hence, the equation is:
[tex]y = -\frac{8}{x}[/tex]
Plot and label one point that is not a solution
(3,-1) (-3,-3)
Candice wants to buy a sweatshirt that costs $38. She also wants some T-shirts tha
are on sale for $16 each. She has $150 to spend.What’s a inequality?
Answer:
19/1200
Step-by-step explanation:
PLZ HELP ME I DONT UNDERSTAND
Answer:
7.5
Step-by-step explanation:
It’s cost $15 to send 3 packages through a certain shipping company. Consider the number of packages per dollar.
A. Find the constant of proportionality for this situation.
B. Write an equation to represent the relationship.
I think it is B not so sure but yea i think B sorry if I'm wrong
HELPPP PLEASEEE!!! Write the equation in slope-intercept form of the line that passes through (6, -11) and is parallel to the graph of y=−2/3x+12. Show work
Answer:
y=-2/3x-7
Step-by-step explanation:
parallels have the same slope just different y ints
to find what the y int is i just graphed the point (6,-11) to a calculator and made an equation with a slope of -2/3 and plugged in different y ints to get this
If £1 = $1.75, what is $19.25 in pounds?
Answer:
$19.25 ÷ $1.75 = (GBP)15.4
Step-by-step explanation:
What is the rate of this answer ??
Answer:
Option (4)
Step-by-step explanation:
Let the input output values of the table are represented by the equation,
y = mx + b
Here m = rate
b = y-intercept
Since, at x = 0, y = -1 [Point given in the table]
y-intercept 'b' = 0
Rate = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
Where [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] are two points given in the table.
If the points are (-2, -5) and (-1, -3),
Substitute the values in the formula,
Rate = [tex]\frac{(-5)-(-3)}{(-2)-(-1)}[/tex]
= [tex]\frac{-5+3}{-2+1}[/tex]
= 2
Therefore, Option (4) will be the answer.
MATH HELP!! ASAP!! BRAINLIESTT!!
Answer: the equation of this parallel line would be: Answer: y = 5x - 6
Step-by-step explanation:
Slope of the parallel lines are same
So, m= 5
(3,9)
Equation: y - y1 = m(x -x1)
y - 9 = 5(x - 3)
y - 9 = 5x - 3*5
y -9 = 5x -15 {add 9 to both sides}
y - 9 + 9 = 5x - 15 + 9
y = 5x - 6
plz brainliest
The first right answer gets brainlyist. Thanks
Expand the expression −11(3c−2d)
using the Distributive Property.
Answer:
-33c+22d
Step-by-step explanation:
=(−11)(3c+−2d)
=(−11)(3c)+(−11)(−2d)
Find the area of the triangle.
C = 133.5°, a = 45.7 ft and b = 37.1 ft
The area is
square ft.
(Simplify your answer. Type an integer or a decimal. Roun
Answer:
i think the answer is area = 1695.47 ft squared
Step-by-step explanation:
just do 45.7 x 37.1 since you’re finding area of a SQUARE which has all equal sides.
Someone help me !! Please
Help I gotta minute left!
Step-by-step explanation:
D I believe the answer is
How many solutions does this equation have?
3x - 2(x + 4) = 5x - 8 + 4x
А
Two solutions
B
Infinitely many solutions
No solution
he
One solution
Please Help I need this
A group of 100 students were asked if they study French or Spanish in school. The results are shown in this two-way table.
A 4-column table with 3 rows. The first column has no label with entries Spanish, not Spanish, total. The second column is labeled French with entries 5, 30, 35. The third column is labeled not French with entries 63, 2, 65. The fourth column is labeled total with entries 68, 32, 100.
Which statements are correct? Check all that apply.
5 students study both French and Spanish.
63 students study French.
2 students study neither French nor Spanish.
30 students study French, but not Spanish.
63 students study Spanish.
Answer:
add them up
Step-by-step explanation:
Someone pls help me I’ll mark u brainliest
Yoko needs 300 copies of her resume printed. Dakota printing charges 19.50$ for the first 200 copies and 9$ for every 100 additional copies. If the number of sets of 100 resumes is represented by r, express the cost of the resumes c(r) algebraically as a piecewise function How much will 300 copies cost, including a sales tax of 4 1/2%? Round to the nearest cent.
Answer:
A. c(r)=$19.5 if r < 2
c(r)=$19.5+(r-2) ($9) (1.045) if r ≥ 2
B. $29.78
Step-by-step explanation:
A. Based on the information given if we are to express the cost of the resumes which is c(r) algebraically as a piecewise function what we would have will be:
c(r)=$19.5 when r represent an INTERGER and is less than 2
c(r)=$19.5+(r-2) ($9) (1+0.045)
c(r)=$19.5+(r-2) ($9) (1.045) when r represent an INTERGER and is greater than 2
Therefore to express the cost of the resumes c(r) algebraically as a piecewise function will be: c(r)=$19.5 if r < 2
c(r)=$19.5+(r-2) ($9) (1.045) if r ≥ 2
B. Calculation for How much will 300 copies cost, including a sales tax of 4 1/2%
Cost of 300 copies=($19.5+$9)+($19.5+$9) (0.045)
Cost of 300 copies=$28.5+$28.5(0.045)
Cost of 300 copies=$28.50+$1.28
Cost of 300 copies=$29.78
Therefore How much will 300 copies cost, including a sales tax of 4 1/2% will be $29.78
R is less than or equal to -9
R<_-9
Hope this helps
what must be the value of a and b for PQRS to be a parallelogram?
Answer:
a = 2
b = 4
Step-by-step explanation:
In parallelogram opposite sides are equal.
4a + b = 2a + 8
4a - 2a + b = 8
2a + b = 8 -----------------(I)
b = 8 - 2a
11b - 10a = 6b
11b - 6b -10a = 0
5b - 10a = 0 ---------(II)
Substitute b = 8 - 2a in equation (II)
5*(8-2a) - 10a = 0
5*8 - 2a * 5 - 10a = 0
40 - 10a - 10a = 0
40 - 20a = 0
-20a = - 40
a = -40/-20
a = 2
Plugin a = 2 in equation (I)
2*2 + b = 8
4 + b = 8
b = 8 -4
b = 4
