Answer:
Equation 1: x-3y+5=0
Equation 2: 3x+y-1=0
Step-by-step explanation:
Equation 1: x+3y=-5
x+3y+5=-5+5
x=3y+5=0
Equation 2: 9x+3y-3=0
3x+y-1=0
Add (-x + 4) + (3x + 2).
Answer:
2x+6
Step-by-step explanation:
The expression equivalent to (-x + 4) + (3x + 2) is 2(x + 3).
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
(-x + 4) + (3x + 2)
Combine like terms.
-x + 3x + 4 + 2
2x + 6
2(x + 3)
Thus,
The final expression is 2(x + 3).
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Samuel is in the business of manufacturing phones. He must pay a daily fixed cost to
rent the building and equipment, and also pays a cost per phone produced for
materials and labor. The equation C = 225p + 900 can be used to determine the
total cost, in dollars, of producing p phones in a given day. What is the slope of the
equation and what is its interpretation in the context of the problem?
The slope of the function is 225 which represents
the total cost to produce all of the phones
*
attempt 2 out of 2
the total cost to produce all of the phones
the number of phones produced in a day
the fixed cost for rent and equipment
the number of days to produce all of the phones
the additional cost to produce each phone
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Answer:
the additional cost to produce each phone
g(n) = 2n + 5; find g(-1)
Answer:
Solving g(n)=2n+5 by putting n=-1 we get g(-1)=3
Step-by-step explanation:
We are given g(n)=2n+5
We need to find g(-1)
For finding g(-1) put n=-1 in g(n)=2n+5
[tex]g(n)=2n+5\\Put \ n=-1\\g(-1)= 2(-1)+5\\g(-1)=-2+5\\g(-1)=3[/tex]
So, Solving g(n)=2n+5 by putting n=-1 we get g(-1)=3
A local hamburger shop sold a combined total of 762 hamburgers and cheeseburgers on Friday. There were 62 more cheeseburgers sold than hamburgers. How many hamburgers were sold on Friday?
Answer:
Step-by-step explanation:
We have to come up with a system of equations in order to solve this because we have 2 unknowns: hamburgers and cheeseburgers. h is hamburgers and c is cheeseburgers. We know that both of these together totaled 762, so
h + c = 762
We also know that more cheeseburgers were sold than were hamburgers. 62 more cheeseburgers, to be exact. So the second equation is
c = h + 62.
Now we will sub that second equation into the first one and solve for h:
h + c = 762 becomes
h + h + 62 = 762 and
2h + 62 = 762 and
2h = 700 so
h = 350. So 350 hamburgers were sold and 762 - 350 is the number of cheeseburgers. 412 to be exact.
Ben and Joel are raising money for their class trip by selling wrapping paper. Ben raised $43.50 by selling 12 rolls of solid paper and 9 rolls of printed paper. Joel raised $51.50 by selling 8 rolls of solid paper and 15 rolls of printed paper. Find the cost of each type of wrapping paper.
Answer:
Solid paper costs 1.75 each
Printed paper costs 2.50 each
Step-by-step explanation:
Given:
Ben = $43.50 (12 rolls solid paper and 9 rolls of printed paper)
Joel = $51.50 (8 rolls solid paper and 15 rolls of printed paper)
Let x = solid paper
Let y = printed paper
12x + 9y = 43.50
8x + 15y = 51.50
Find x:
8x + 15y = 51.50
8x = 51.50 - 15y
x = (51.50 - 15y)/8
Substitute x:
12x + 9y = 43.50
12(51.50 - 15y)/8 + 9y = 43.50
(618 - 180y)/8 + 9y = 43.50
8 (618 - 180y)/8 + 8*9y = 43.50 * 8
618 - 180y + 72y = 348
-108y = 348 - 618
-108y = -270
-108y/-108 = -270/-108
y = 2.50
x = (51.50 - 15y)/8
x = (51.50 - 15(2.5) /8
x = (51.50 - 37.50)/8
x = 14/8
x = 1.75
To check: x = 1.75 ; y = 2.5
12x + 9y = 43.50
12(1.75) + 9(2.5) = 43.50
21 + 22.50 = 43.50
43.50 = 43.50
8x + 15y = 51.50
8(1.75) + 15(2.5) = 51.50
14 + 37.50 = 51.50
51.50 = 51.50
Can someone help me with this
Answer:
we need to see the table above
Answer:
i cant see the table on top of the graph
Step-by-step explanation:
sorry but take another good picture
is 14.5d=87 a function
yes it is a function
a small block of wood is thrown inside a container filled with water. if only half of the wood is submerged in water and displayes 2 litre of water in the container. what is the weight of the wood
Answer:
the block of wood weighs 2 liters
Which one is this please answer it and get thanks from me if ur right
♡ The Question ♡
- Which of the following is equivalent to the power shown below? 8^4
*୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*
☆ The Answer ☆
- Your answer should be C!
*୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*
♡ The Explanation/Step-By-Step ♡
- When your power is being shown as 8^4, this can be represented as 'Eight four times.' This means it could be, 8, 8, 8, 8. Hope this helps!
*୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*
☆ Tips ☆
- No tips provided!
What is the total cost of a $150.00 necklace if the sales tax is 6%?
Answer:
Amount (excluding tax)$150.00
Tax (6.0%)$9.00
Amount (including tax)$159.00
Answer:
pretty sure it would be like 159.00 or something like that sorry if i was not much help
Step-by-step explanation:
i hope you have a great day sir/ma'am!!!
Which of the following data sets represents a linear function?
A. (2, 4), (3, 9), (4, 16), (5, 25)
B. (-2, -1), (-3, 0), (-4, 1), (-5, 0)
C. (2, 12), (3, 6), (4, 0), (5, -6)
D. (2, 1), (3, 0), (4, 1), (5, 4)
I will give brainliest if you are correct
Answer:
C
Step-by-step explanation:
to be a linear function the change in X and the change in Y has to be the same hence slope
A. x changes by+ 1 see 2,3,4,5, and y changes by +5, +7, +9 so A is not a linear function
B. X changes by -1 in all, y changes +1 for first 3 then -1 last, so B is not a linear function
C. X changes by +1 for all and y changes by -6 for all so is it is a linear function
D x changes by +1 for all and y changes by -1, +1, +3 so no linear fn.
PLEASE HELP! Determine the slope and the y-intercept of the table.
To find the slope, use two (or three) points and plug them into y2 - y1/ x2 - x1.
Once you have the slope, plug one point and the slope into . . .yup, point-slope form. y-y₁=m(x-x₁)
After doing this, you will have the slope and the y-intercept.
5x-5=3x +17
what is the answer?
Answer:
do 8x12 maybe
Step-by-step explanation:
im sorry i hope this helps
Prove lines are parallel
Answer:
its c
Step-by-step explanation:used brain and used again
list two factors that will change your auto insurance.
um, im not sure but probably:
-driving record
-income
True or false?
The constant of proportionality is 30.
Miguel saves $15 per month.
Order the decimals and fractions, least to greatest. Write all answers as decimals.7/100, 7.07, 0.71, 7/10 pls tell me quick
Step-by-step explanation:
0.07, 0.7, 0.71, 7.07 trying to hit 20
80% of the astronomy club members own a telescope. If 20 students own a telescope, how many students are in the astronomy club in all?
help me please I will give the brainliest
Answer:
25
Step-by-step explanation:
martha accumulated $6000 in credit debt if the interest rate is 1.45 percent per year and she does not make any payments for 4 years how much will she owe on her debt in 4 years by compounding continuously
Answer:
The answer is 6087.0435
Step-by-step explanation:
6000 + 1.45% + 1.45% + 1.45% + 1.45% = 6087.0435
Answer:
6358.29
Step-by-step explanation:
This is the answer
Which phrase best describes the translation from the graph y = (x + 2)2 to the graph of y = x2 + 3?
O 2 units left and 3 units up
O 2 units left and 3 units down
2 units right and 3 units up
O 2 units right and 3 units down
Answer: O 2 units left and 3 units down
The phrase that best describes the y = (x + 2)² and it is translated to
y = x² + 3 is 2 units left and 3 units up.
What are some rules of transformations?Suppose we have a function f(x).
f(x) ± d = Vertical upshift/downshift by d units (x, y ±d).
f(x ± c) = Horizontal left/right shift by c units (x - + c, y).
(a)f(x) = Vertical stretch for a > 0, vertical shrink a < 0. (x, ay).
f(bx) = Horizonatal compression b > 0, horizontal stretch for b < 0. (bx , y).
f(-x) = Reflection over y axis, (-x, y).
-f(x) = Reflection over x-axis, (x, -y).
Given, A function y = (x + 2)² and it is translated to y = x² + 3.
Now, The part x² from (x + 2)² is translated 2 units to the left, and the part
+ 3 is translated up by 3 units.
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Kevin can travel 22 1/2miles in 1/3hour. What is his average speed in miles per hour?
Answer:
67.5 miles per hour
Explanation:
22 1/2 * 3 = 67.5
Answer:
67 1/2
Step-by-step explanation:
22 1/2 : 1/3 = 67 5/10 = 67 1/2
F(x)=8-3x find x when f(x)=32
Answer:
x=8
Step-by-step explanation:
F(x)=8-3x
f(x)=32
replace f(x) with 32
32=8-3x
32-8=3x
24=3x
x=24/3
x=8Melinda and her husband are purchasing a home. The cost of the home is $135,500. They will be required to pay a down payment of 25% of the purchase price and to pay closing costs of 3% of the purchase price. How much cash do they need for the down payment and closing cost?
Answer:
$37,940
Step-by-step explanation:
1. Divide $135,500 by 25%= $33,875
2. Divide $135,500 by 3%= $4065
3. Add both quotients
$33,875 + $4065
= $37940
Melinda and her husband will need $37,940 for the down payment and closing cost.
Represent 3.4×1.2 in an area model using base 10 blocks.
Answer: There are 3 tens in 3.4 and 4 ones in 3.4. There is one base ten block in 1.2 and 2 ones in 1.2
Step-by-step explanation:
A recipe for salad dressing calls for 3 tablespoons of oil for every 2 tablespoons of vinegar. The line represents the relationship between the amount of oil and the amount of vinegar needed to make salad dressing according to this recipe.
Answer:
3:2, 3 to 2
Step-by-step explanation:
047
. Find the prime factorization of the number 3,240
O2x34 x 54
O 23 x 34 x 10
O 23 x 34 x 5
O 23x35x5
PLS ITS WORTH 10 AND
Answer:
2³ x 3⁴ x 5
Step-by-step explanation:
The problem here is to find the prime factorization of the given number. Prime factorization is the process of breaking down a number into its basic prime numbers;
3240
10 x 324
2 x 5 x 324
2 x 5 x 2 x 162
2 x 5 x 2 x 2 x 81
2 x 5 x 2 x 2 x 3 x 27
2 x 5 x 2 x 2 x 3 x 3 x 9
2 x 5 x 2 x 2 x 3 x 3 x 3 x 3
2³ x 3⁴ x 5
Answer:
2^3 x 3^4 x 5
Step-by-step explanation:
8 x 81 x 5 = 40 x 81
Solve the exponents.
-kiniwih426
Dave doughnuts sell a dozen doughnuts for 5.64. what is the unit cost per doughnuts?
Answer:
give me some DONUTS!!!!!!!
Step-by-step explanation:
and a coffee at the if you will in fact give me a caramel Pacheco
A flower bed has the shape of a rectangle 27 feet long and 9feet wide. What is its area in square yards?
Answer:
243
Step-by-step explanation:
27×9=243
243 sq yards
Answer:243 I’m not sure
Step-by-step explanation:
Based on the graph, what are the solutions of x3 + x2 -
9x – 9 = 0?
The solutions of given equation are -3, -1 and 3.
what is the range of f?
A) -6≤x≤7
B) The x-values -6,0,2,4 and 7
C) The x-values -5,1,3, and 4
D) -5≤x≤4
Answer:
The range of f(x) is (−∞,∞), which is all real numbers. In fact, this range holds for any base for the log. 3. For 0">a>0 and a≠1, f(x)=ax has a range of (0,∞).
