Solve the following system of equations using substitution.
y = 2x-2
-4x-y = 26
Answer:
x = -4
y= -10
Step-by-step explanation:
Solving for x
-4x-y = 26
-4x-(2x-2) = 26
-6x+2 = 26
-6x = 24
x = -4
Solving for y
y = 2x-2
y = 2(-4) -2
y= -8-2
y = -10
Question 8 HELPPPPPPPPPPPPPP
Answer:
it would be at 3
cause double negatives cancel out- if u c something like -- or -(-) they would become a positive- so you would plot it at positive 3
hope this helps (again lol)
<33
Step-by-step explanation:
Answer:
plot at 3
Step-by-step explanation:
a negative number times another negative number will result in a positive number
therefore, - (-3)=3
What is the decimal multiplier to decrease by 2.7%?
Answer:
2.7% as a decimal, is 0.027. And, 0.0027 as a fraction, is 27/1000.
Marco spent $2.50 to wash his car.
If two quarters operate the car wash
for 60 seconds, how many minutes
did it take Marco to waslı his car?
Answer quickly please
A hybrid car can travel 40 miles per gallon. Approximately how many gallons of fuel will the car need to travel 20 km? (5 points) [1 mile = 1.6 km]
Answer:
To travel 20 Km, the hybrid car needs 0.3125 gallons of fuel.
Step-by-step explanation:
Proportions
The hybrid car can travel 40 miles per gallon.
Since one mile is equivalent to 1.6 Km, the distance traveled per gallon is 40*1.6 = 64 Km.
Now the distance is expressed in Km, we can find the gallons needed to travel 20 Km, by calculating 20/64 = 0.3125.
To travel 20 Km, the hybrid car needs 0.3125 gallons of fuel.
What is the equation of the line through (-2,5) and (0, 3)?
Help please
y= -1 x + 4
found the slope and then rearranged y=mx+b to find b
lmk if you need any other help :)
PLEASE HELP ME ASAPP !! I HAVE 10 MINUTES LEFT !! When Erin first planted the cherry tree in her yard, it was 40 feet tall. Now it is 35% taller. How tall is the tree now?
Answer: 54 feet tall
Step-by-step explanation:
Answer:
it would be 54 feet tall now
Step-by-step explanation
35% of 40 is 14
40+14=54
54 feet
I will give 5 stars and brainlist.
Answer:
I believe it's B
Step-by-step explanation:
I'm so sorry if im wrong
In a survey of 100 dog owners, 75% said that they always feed their dog dry food.
What fraction of the dog owners surveyed feed their dog dry food?
Answer:
3/4
Step-by-step explanation:
Please give brainliest!
What is the right angle postulate? Definition and how to use it
Answer:
Search it up!
Step-by-step explanation:
Shade row 3 and column C.
Answer:
Shade in all of the boxes to the right of 3, and all of the boxes above the C.
DESPERATE WILL GIVE BRAINLIST AND THANKS
Graph y= –12x–6 .
(PLEASE SHOW IT GRAPHED FOR ME)
Answer:
Here it is!
Step-by-step explanation:
I graphed it. The second one is just to show the points.
The points are (0,-6) and (-1/2,0)
Brainly pls!
1. For a soccer party, Juan collects $90 for pizza. He must buy more than 5 pizzas to
feed the team. Pizzas are $7.25 for a small pizza and $10.50 for a large pizza. Let:
S = number of small pizzas he can buy & L = number of large pizzas he can buy.
Select the system of inequalities that represents this situation.
Answer:
7.25S + 10.50L ≤ 90
The system of inequalities that represents a given situation are S+L>5 and 7.25S+10.50L≤90.
Given that, For a soccer party, Juan collects $90 for pizza. He must buy more than 5 pizzas to feed the team. Pizzas are $7.25 for a small pizza and $10.50 for a large pizza.
What are inequalities?Inequalities are mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.
Let S = the number of small pizzas he can buy and L = the number of large pizzas he can buy.
Juan must buy more than 5 pizzas to feed the team.
That is, S+L>5
Pizzas are $7.25 for a small pizza and $10.50 for a large pizza=7.25S+10.50L
Juan collects $90 for pizza. So, 7.25S+10.50L≤90
Therefore, the system of inequalities that represents a given situation are S+L>5 and 7.25S+10.50L≤90.
To learn more about the system of inequalities visit:
https://brainly.com/question/16339562.
#SPJ2
At a French restaurant, you order a salad for $2.50 and lasagna for $8.25. If the sales tax is 8%, what is the total of your bill including sales tax?
Answer:
$11.61
Step-by-step explanation:
Solve x + 7 > 15 or 2x - 1 < 3.
Answer:16x?
Step-by-step explanation:
The product of two numbers has a 5 in the ones digit. Are the two numbers even or odd
The ones digit of the product of two numbers has an odd 5 in it.
What are products?
The outcome of one or more multiplications is referred to as a "product." For instance, the mathematical statement "times equals" would be written with the multiplier, the multiplicand, and their product as the variables.According to our question,
You might perform a simple calculation like 5x5 to get the odd value of 25, as 5 is odd.hence,The ones digit of the product of two numbers has an odd 5 in it.
Know more about products click here:
https://brainly.com/question/13152087
#SPJ2
What is the sum of the measures of the interior angles of a 27-gon?
Answer:
To figure out the total measure of the angles for a 27-gon, there is a formula.
n - 2 x 180* (n is the number of sides, which would be 27)
27 - 2 = 25
25 x 180* = 4500*
The total measure of the angles of a 27-gon is: 4500*
Step-by-step explanation:
crown
Is this a function?
nah buddy
Step-by-step explanation:
PLEASE HELP I WILL GIVE GBRAINLIEST
Find the slope by using 2 sets of x,y values from the table.
Slope is change in y over change in x:
Slope = (-6 - -9) / (1 - -2) = 3/3 = 1
Then the y intercept is the value of y when x is 0. Looking at the table when x is 0 y is -7
The equation would be y = x-7
plz help asap i need help fast asap i will mark you brainlist
Answer:
What do you need help with?
Find the range and the interquartile range for 28,29,33,28,27,32,30,27
Answer:
33 - 27 = 6
Step-by-step explanation:
Answer:
6, 4.25
Step-by-step explanation:
Population size:8
Lowest value: 27
Highest value: 33
Range: 6
Interquartile Range: 4.25
A rose bush grew from 24 inches to 36 inches in two weeks. What was the percent increase?
Answer:
50 percent increase
Step-by-step explanation:
Answer:
50% increase
Step-by-step explanation:
36-24=12
12/24=.50
Under a dilation of scale factor 2 centered at (3,1), Pentagon IRONS becomes Pentagon
I'R'O'N'S
Fill in the table below with the most appropriate answer,
Answer:
(a+k(x-a), b+k(y-b))
I = (5, 5)
N = (8, 3)
R' = (5, 3)
O' = (9, 1)
S' = (11, 9)
Step-by-step explanation:
Bc+ad=b solve for a
Answer:
bc+ad=b
ad=b-bc
ad=b(1-c)
a=(b(1-c))/d
Answer:
Step-by-step explanation:
ad = b - Bc
a = (b - Bc)/d
Which equation describes a line perpendicular to line R that passes through the point
(3, –6)?
A.x – 3y = 21
B.3x + y = 3
C.3x – y = 15
D.3x – y = 3
Answer:a
Step-by-step explanation:
Select the correct answer.
Which inequality will have a dashed boundary line with a shaded area above its graph?
A. 7x − y ≤ 3
B. x − y ≤ 4
C. 2x − 9y > 2
D. 4x + 7y > 3
On Monday, Cathy read 1/6 of her book, and on Tuesday, she read 2/6 of the book. How much has she read
Answer:
1/2 of her book
Step-by-step explanation:
1/6 + 2/6 = 3/6 = 1/2
Answer:
I think that it is 1/2 of her books
Step-by-step explanation:
Hope this helped have an amazing day!
Plz help me I need this in less than a hour :<
Plz help. Will give brainliest
Answer:
17.1
Step-by-step explanation:
Answer 17. 1
Step-by-step explanation:
Half a pepperoni pizza plus three fourths of a ham-and-pineapple pizza contains 765 Calories. One fourth of a pepperoni pizza plus a whole ham-and-pineapple pizza contains 745 Calories. How many Calories are in a whole pepperoni pizza? How many Calories are in a whole ham-and-pineapple pizza?
Answer:
Let x be the number of calories in the pepperoni pizza and y be the number of calories in ham-and-pineapple pizza. Then, we can make two equations out of the problem statement.
Eq 1: (1/2)x + (3/4)y = 765
Eq 2: (1/4)x + y = 745
By transposing, Eq 2 becomes: y = 745 - (1/4)x. We substitute this to Eq. 1:
(1/2)x + (3/4)(745 - (1/4)x) = 765
x = 660
Then we substitute x to Eq 2 to get y:
y = 580
Thus, there is 660 calories in pepperoni pizza and 580 calories in ham-and-pineapple pizza.