what is the slope of y = -4x - 7
Answer:
-4
Step-by-step explanation:
Slope intercept form is
-y = Mx + b
Solve for x and y by elimination 3x+y=-1
Answer:
we need 2 equations to solve by elimination
Answer:
Step-by-step explanation:
for x
3x + y = -1
subtract 3x from both sides
y = -3x - 1
answer
for y
3x + y = -1
subtract y on from both sides
3x = -y -1
divide by 3
x = -1/2y - 1/3
answer
Gerardo castro rented a act for 4 days at 45 per day, and drove the car 600 miles at $0.22 per mile. He spent $50.00 for gasoline and purchased a collision waiver for $12.00 per day. What is the total cost for renting the car?
Answer:
410
Step-by-step explanation:
A belt and a wallet cost $42.7 belts and 4 wallets cost $213 find the cost of each item
Answer:
A belt costs $15 and a wallet costs $27.
Step-by-step explanation:
Let's mark price of a belt with x and price of the wallet with y. That leaves is with a system of equations:
x + y = $42
7x + 4y = $213
The goal when solving this system is to get rid of one of the variables. We can do that by multiplying first equation with -4:
-4x - 4y = -168
7x + 4y = 213
Now, we simply add these two equations up:
-4x - 4y + 7x + 4y = -168 + 213
3x = 45
x = $15
Now, we plug in x into any of the two starting equations to find y:
x+y=42
15 + y = 42
y = $27
ty and his 3 brothers share a pizza equally what is the fraction
Answer:
If they all get an equal slice, 1/4.
Step-by-step explanation:
The perimeter of a square that has been enlarged by the same number of inches on each side is represented by the expression (X +
6) + (x + 6) + (x + 6) + (x + 6).
Which expression is equivalent to (x + 6) + (x + 6) + (x + 6) + (x + 6)?
A)
4 + (x + 6)
B)
4(x + 6)
c
4x + 6
D)
X - 24
Urgent !!!
Select the correct answer.
The domain, range, and x-intercept of a one-to-one function are shown.
IF s = -4 and t = 2 , what is 3s + 6t?
Answer:
0.
-12 + 12 = 0
Step-by-step explanation:
3(-4) + 6(2) (multiply)
-12 + 12 = 0
$4.30 makeup; 40% discount 6% tax ???
In a Petri dish there are currently 1,235 bacteria. The growth rate of bacteria is 3.25% How many bacteria will be there in the dish after 5 hours
Answer:
....
Step-by-step explanation:
Answer:
1,436
Step-by-step explanation:
First multiply the growth rate by the number of hours.
3.25 x 5 = 16.25
Now multiply 1,235 by 100. = 123,500
And also multiply 1235 by the remainder percentage not being used(83.75)= 103,060.75
Now subtract 123,500 - 103,060.75 = 20,439.25
Divide this number by 100 = 204.3925 which is what 16.25% of 1,235 is.
1,235 + 204 = about 1,439 but since i rounded up a few times the answer is actually 1,435.6875 rounded up to 1,436
General admission tickets to the fair cost $5 per person. Ride passes cost an
additional $7.50 per person. Parking costs $16 for the family. The total costs for
ride passes and parking was $103.50. How many people in the family attended
the fair?
15 people working 5 hours per day can make 30 units of a product in 10 days. Assuming all other factors remain constant and people of the same efficiency are used to make the same products, in how many days can 10 people make 10 units of the product if each of them works 10 hours per day?
Answer:
I don't really understand it very well
It will take 10 people working 10 hours per day about 2.5 days to make 10 units of the product.
From the statement of the question; 15 people working 5 hours per day can make 30 units of a product in 10 days. Hence, the number of units that can be made in a day is;
Number of units per day = (15*5*10)/30
= 25 units/day
Now; if 10 people make 10 units, working 10 hours per day, it will take them x number of days.
x = (25*10)/10*10
x = 2.5 days
Learn more: https://brainly.com/question/22873736
En una pasteleria realizan 15 posteles cada 30 min
Cuantas pasters se haran en 4 horas con 15 min?
Answer:
60
Step-by-step explanation:
había multiplicado 4 y 15 espero que esto ayude
I am doing a science project and need a fun or short title. The project is on whether filtered water affects plant growth. Any creative title ideas?
Answer: Water: The battle between the clean vs the dirty :P
Step-by-step explanation:
HELP PLS
What are the domain and range of the exponential decay function?
A) Domain: All real numbers; Range: All real numbers
B) Domain: x< 3; Range: y> 3
C) Domain: All real numbers; Range: y> 3
D) Domain: x > 3; Range: All real numbers
Answer:
Thus the domain is the real numbers and the range is y>3.
Answer: Option C)
Step-by-step explanation:
Domain and Range of Functions
To determine the domain and range of a function given on a graph, we use the vertical and horizontal line methods respectively.
The domain consists of all the values of x for which the function exists. We are told that the function is an exponential decay. Exponential functions without specified restrictions have a domain of all the real numbers.
Imagine a vertical line moving from minus infinite x to plus infinite. The line would always cross the graph at one point, thus the domain is all the real numbers.
Now for the range, imagine a horizontal line coming from y minus infinite. It won't get in contact with the graph until it approaches y=3. Once it goes up y=3, the line touches the graph in one point up to infinity y. The range is y>3.
Thus the domain is the real numbers and the range is y>3.
Answer: Option C)
Please help me!!! I will mark.
Answer:
the answer is the first one!
because if x=-3 we know that |x|=|-3|=3
There are 30 855 oranges harvested for sale, 6555 were sold on Monday, 4225
were sold on Tuesday and 7 295 were sold on Wednesday. What is the total
number of oranges sold from Monday to Wednesday?
Answer:
18,075
Step-by-step explanation:
6555+4225+7295=18,075
Find all polar coordinates of point P where P = (9,pi divided by 5).
Answer:
(-9, π/5 + (2n + 1)π)
Step-by-step explanation:
Adding any integer multiple of 2π to the direction argument will result in full-circle rotations, which are identities, so this family is equivalent to the give coordinates:
(9, π/5 + 2nπ), for any integer n
Also, multiplying the radius by -1 is a point reflection, equivalent to a half-turn rotation. Then add π to the direction for another half turn, and the result is another identity. So this too is equivalent to the given coordinates:
(-9, π/5 + (2n + 1)π), for any integer n
A number x is greater than 3.
Answer:
4,5,6,7,8,9..........................
1,800 divided by what equals 90
Answer:
20
Step-by-step explanation:
Answer:
1800 divded by 20=90
Step-by-step explanation:
HELP !! emergency !!!!
Answer:
8°
Step-by-step explanation:
The laws of angles say that angles opposite the vertex (as in this case) are equal
So
(7x + 15)° = (9x - 1)°
let's remove the ° just so as not to get confused
7x + 15 = 9x - 1
To solve we must move the Xs on one side of the = sign and the free numbers on the other. For that, we must do the same operations on both sides. If we subtract from one, from the other also, and so on.
So we are going to substract 15
(7x + 15) - 15 = (9x - 1) -15
It result:
7x = 9x - 16
We are going to substract 9x
(7x) - 9x = (9x - 16) - 9x
It result:
7x - 9x = -16
-2x = -16
We are going to change the signs (ON BOTH SIDES)
2x = 16
x = 8
now we have the value of X
we substitute x in the equations
7(8) + 15 = 9(8) - 1
56 + 15 = 72 - 1
71 = 71
So, the angles are 71°
And the Value of X is 8°Mr. Hudson is a car salesman. He makes a fixed amount of $1,000 a month and receives $250 for every car that he sells. Which inequality shows the number of cars, n, Mr. Hudson must sell in a month to earn a minimum of $6,000?
Answer:
250n + 1,000 ≥ 6,000
Step-by-step explanation:
You know that he makes 250 dollars per car her sells and he automatically makes 1000 per month. n is representing the number of cars he sold and that is multiplied by the worth of each car. If he needs a MINIMUM of 6000 dollars. he must make 6000 dollars or more which can also be shown as ≥. Hope this helped!
which list below shows the fractions in order from least to greatest
5/9,3/4,2/3,3/5
5/9,3/5,2/3,3/4
2/3,3/5,4/9,5/9
3/5,2/3,3/4,5/9
Answer:
Step-by-step explanation:
Its D
A telephone pole is 24 feet tall. A support cable is attached to the top of the pole to keep the pole from leaning. The stake for the cable is set in the ground 18 feet away from the base of the pole, as shown. How long is the support cable?
Answer:
30
Step-by-step explanation:
Answer:
30
Step-by-step explanation:
5. Which number is irrational? 3 (1) V16 (2) V12 (3) (4) 0.50
Answer:
(3)√12
Step-by-step explanation:
The other numbers are not continuous
Describe the slope of the line.
m =???
excuse the crack!!
Answer:
[tex]\frac{1}{2}[/tex]
Step-by-step explanation:
When two dice are rolled find the probability of getting a sum of 6 or 7 PLEASE ANDWER QUICK IM TAKINN A TEST
Answer:
y=mx+b hope this helps
Step-by-step explanation:
Answer:
11/36
Step-by-step explanation:
can someone help with this one too?
Answer:
the answer is C
Step-by-step explanation:
y = 3x – 21 is it proportional
Answer:
yes
Step-by-step explanation:
A triangle has exactly three sides. Prove the conditional by proving the contrapositive. If a polygon has more than three sides, then it is not a triangle. Contrapositive: If _____, then _____. Since ______, the contrapositive is _____, the original statement must be _____.
Answer:
Contrapositive: if a polygon does not have more than 3 sides, then it is a triangle. Since it is a true statement, the contrapositive is a true statement, the original statement must be a true statement.
Step-by-step explanation:
Original statement: if a polygon has more than three sides, then it is not a triangle.
Let P = a polygon has more than three sides
Let Q = it is not a triangle
Conditional statement: If P, then Q
Contrapositive statement: if not P, then not Q.
If a conditional statement is true, then the contrapositive is true.
If a contrapositive statement is true, then the contrapositive is true