Answer:
x=4 y=0
Step-by-step explanation:
3x+5y=12
-(x-3y=4)
3x+5y=12
3(-x+3y=-4)
3x+5y=12
-3x+9y=-12
14y=0
y=0
Then, substitute the y into the equation to find x
x-3(0)=4
x=4
simplify the expression 4x+3 (5y+x)
Answer:
7x + 15y
Step-by-step explanation:
4x+ 3 ( 5y + x)
Step 1: remove the brackets by multiplying 3 with (5y + x)
4x+ 15y + 3x
Step 2: add the 4x and 3x
7x + 15y
Answer:
[tex]=7x+15y[/tex]
Step-by-step explanation:
[tex]4x+3\left(5y+x\right)[/tex]
[tex]3(5y+x)[/tex]
[tex]15y+3x[/tex]
[tex]=4x+15y+3x[/tex]
[tex]4x+15y+3x[/tex]
[tex]7x+15y[/tex]
[tex]=7x+15y[/tex]
Andre and Elena are solving this system of equations.
Y=3x
Y=9x-30
Andre’s first step is to create a new system:
3y=9x
Y=9x-30
Do you agree with either first step?
A-both strategies work
B-only the first strategy works
C-only the second strategy works
D-neither strategies work.
Answer:
A-both works
Step-by-step explanation:
one can simply sub into the second equation from the first step's one and remove an unknown, making it easy to solve
What is the percent increase ???? Help please
Answer:
25 percent increase
Step-by-step explanation:
im pretty sure
Point A located at -11 and -7 on the coordinate plan is reflected over the X axis to form point B.Then point B is reflected over the y axis to form point C. What are
the coordinates of points B and C
Answer:
The coordinates of B are (-11,7)
The coordinates of C are (11,7)
Step-by-step explanation:
Reflection of Points
Given a point (x,y), it can be reflected in several ways. Two of the most-used are reflection over the x-axis and reflection over the y-axis.
When the point is reflected over the x-axis, the x-coordinate is unchanged, and the y-coordinate is inverted: (x,y) -> (x,-y).
When the point is reflected over the y-axis, the y-coordinate is unchanged, and the x-coordinate is inverted: (x,y) -> (-x,y).
Point A is located at (-11,-7). It's reflected over the x-axis to form point B whose coordinates are (-11,7).
Then, point B is reflected over the y-axis to form point C with coordinates (11,7).
The coordinates of B are (-11,7)
The coordinates of C are (11,7)
What does the highlighter dot represent.
Answer:
Step-by-step explanation: it bbbb
Answer: it an edge
Step-by-step explanation:
Plato
A car renting company charges $31 per day to rent a car along with a $50 one-time cleaning fee.
Enter an equation in y = mx + b form that shows the amount of money earned by the company, y, after x days.
Answer:
y=31x+50
Step-by-step explanation:
31 is how much it grows (slope) so it is the m and 50 is the b
Find the slope of each line
1. is -1/3
2. is 3/4
3. i think its 4/3
4. is 2/3
•count rise
•over run
1) -1/3
2) 3/2
3) 4/-2 = 2/-1 = -2 (all are the same thing)
4) 2/3
Please answer the only one that's empty the question is
+ 10 = +
Answer:
2(10-x)+12
Step-by-step explanation:
Please answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!
Answer:
x=143
Step-by-step explanation:
Using the rule vertical angles then the rule of corresponding angles, you can see that they are congruent.
Which layer of a soil profile forms first from the bedrock?
A. A horizon. B.B horizon C.C horizon D. humus
20 POINTS NO CAP PLEASE HELP ME NEED RIGHT ANSWER
Answer:
3x-10+25+x+15=180
4x+30=180
4x=180-30
4x=150
x=37.5
Answer:
37.5555
Step-by-step explanation:
Alex chose a pair of jeans that sells for $19.50, but today all jeans are on sale for 10% off. How much will Alex save. Explain your answer.
Answer:
He saves $1.95. Instead of paying $19.50, He pays $17.55
Step-by-step explanation:
$19.50 ×10/100 = $1.95
That is the discount of the jeans. Taking
$19.50 - $1.95 = $17.55
What is the Increasing Interval?
What is the Decreasing Interval?
What is the Maximum?
What is the Minimum?
What is the Axis of Symmetry?
Answer: The decreasing interval is
Step-by-step explanation:
Answer:
The decreasing interval is
Step-by-step explanation:
Felicia has grown five pumpkins. The first is 25.34 pounds. The second
weighs 10.23 pounds less than the first. Both the third and fourth pumpkin
are 13.2 pounds. If the combined weight of the pumpkins is 71.87 pounds,
how much does the fifth pumpkin weigh?
Answer:
5.02
Step-by-step explanation:
If the inverse of a conditional statement is true, which of the following must also be true?
Select one:
a. the original conditional statement
b. its converse
c. its contrapositive
Answer:Original Conditional: P → Q = If it is raining, then the driveway is wet. The inverse of a conditional negates both the hypothesis and the conclusion. Inverse: ∼ P → ∼ Q = If it is not raining, then the driveway is not wet.
Step-by-step explanation:
I need help on this one
Answer:13.7
Step-by-step explanation:
The question is asking us to build an algebraic model of this question, to do this, we need to use the slope intercept form.
Let's first identify the known data. We know that a pizza with two toppings is 9.95. In addition, we know that a topping itself is 1.25. We need to find the y intercept first in order to solve this equation, therefore we need to find how much a pizza his without the two toppings. So, we do 1.25(2)=2.5 and subtract it from 9.95. 9.95-2.5= 7.45. Now, this is our y intercept, because this will always stay the same and this is where we always start off. The slope itself however will be 1.25x, because x is the amount of toppings. So, as of now, we have constructed our equation
y=1.25x+7.45
We are looking to see how much a pizza is with 5 toppings, so we plug 5 into x
y=1.25(5)+7.45= 13.7
whats -5 5/8 divided by -4 7/12 as a fraction?
find the vertex f(x)=2(x+14)^2-6
Answer:
(-14,-6)
Step-by-step explanation:
A bakery sells 3642 pastries in 2010. The bakery sells 8422 pastries in 2015. Write a linear model that represents the number y of pastries that the bakery sells x years after 2010
Answer:
y = 936x + 3742
Step-by-step explanation:
If it is a linear model, then we should have a slope and y-intercept with the equation representing the model as;
y = mx + c
where m is the slope and c is the y-intercept
Thus, we have for the slope;
(8422-3742)/(2015-21010) = 4680/5 = 936
So the equation will be;
y = 936x + c
To get c , we can use the years after 2010 which is 2015 in this case
8422 = 936(5) + c
c = 8422- 4680
c = 3742
So the linear model is;
y = 936x + 3742
how we find persentage of 200/300
A store offers four different brands of a product. It decides to eliminate the brand that is most likely to be returned. The table shows the number of items of each brand that were returned over the past year and the total sold. which brand should the store eliminate? A. Brand A B. Brand B C. Brand C D. Brand D
The brand that the store should eliminate out of the 4 given brands using the data in the table is; Brand C
How to Solve Percentage Problems?To find the brand that the store should eliminate we need to find the percentage of sold items that were returned and pick the highest percentage as the brand the store should eliminate.
Brand A percentage = 33/636 * 100% = 5.19%
Brand B percentage = 15/492 = 3.05%
Brand C percentage = 29/362 * 100% = 8.01 %
Brand D percentage = 32/767 * 100% = 4.17%
Brand C has the highest percentage and as such it is the brand that should be eliminated.
Read more about Percentage Problems at; https://brainly.com/question/843074
#SPJ5
Need help ASAP!!!Thanks
Answer:1144.2 for question 5
Step-by-step explanation:
y=6(x-7)(x+2) standard form
Answer:
y=6x^2-30x-84
Step-by-step explanation:
Which of the following is a true statement about polygons?
A) Each line segment intersects exactly two other line segments
B) Each line segment intersects at least two other line segments
C) Each line segment intersects exactly one other line segment
D) Each line segment intersects at least one other line segment
Will mark as brainliest if correct!!
Answer:
A
Each side must intersect exactly two others sides but only at their endpoints. The sides must be noncollinear and have a common endpoint.
y varies inversely with x. y=15 when x=10, find y when x=5
which one of these is. linear function
Which points are separated by a distance of 5
Answer:
A
Explanation
6-1=5
3-3=0
0+5=5
4 1/2 × 4 3/4
jjnuhyhyhyhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
Answer:
21.375
PS:
I could get my calculator to make the product as a fraction if you want.
For the function F(x) = 1/x+1 which of these could be a value of F(x) when x is close to -1?
Answer:
Option B, -10000
Step-by-step explanation:
Step 1: Find the number that would be valid
As the x value gets closer to -1, the y values go to positive and negative infinity. Therefore, the best value out of the options given would be -10,000 since it is the closest to negative infinity.
Answer: Option B, -10000
Logan owed his brother $7.50. For his birthday, Logan received $20 from his grandpa. After paying his brother back, how much money will Logan have?
Answer:
$12.50
Step-by-step explanation:
20 - 7.50=12.50
Answer:$12.5
Step-by-step explanation:
calculator