Answer:
x = 2
y = -1
Step-by-step explanation:
8x + 2y = 14
2x + y = 3
In order to find the number x represents, you have to make the number of y for both equations the same. So:
8x + 2y = 14
(×2) 4x + 2y = 6 (×2)
Then, you can cancel the y off both equations, which will leave:
8x = 14
4x = 6
To find 4x, you have to find the difference between both equations, so you have to:
14 - 6 = 8
Now that the actual number 4x represents is 8, so:
4x = 8
(÷4) x = 2 (÷4)
Now to find y, substitute the letter x with 2:
2x + y = 3
2 (2) + y = 3
4 + y = 3
4 - 3 = -y
1 = -y
(× -) -1 = y (× -)
Answer: x = 2
y = -1
Hope this helps! :)
(NOTE: Do you mind marking me as Brainliest?)
i need help with this its due todayy
Who ever answers this YOUR A GENIUS!! (;
Answer:
A point on line PN is S
Step-by-step explanation:
Answer:
I think the answer is s.
hope this answer will help you
Marni recorded the cost of different weights of apples and made a scatter plot of her data!
There are four question on there !!
Given:
The scatter plot and trend line.
To find:
Type of association, slope, equation of trend line and average cost of apple per pound.
Solution:
Form the given graph it is clear that the trend line passes through the two points (0,0) and (12,24).
Slope of trend line is
[tex]m=\dfrac{24-0}{12-0}[/tex]
[tex]m=\dfrac{24}{12}[/tex]
[tex]m=2[/tex]
Slope of trend line is positive. It means, it represents positive correlation.
So, the type of association of the scatter plot is positive association.
Therefore, the slope of trend line is 2.
The trend line passes through (0,0) have slope 2, so the equation of the trend line is
[tex]y-y_1=m(x-x_1)[/tex]
[tex]y-0=2(x-0)[/tex]
[tex]y=2x[/tex]
Therefore, the equation of trend line is [tex]y=2x[/tex].
Slope of the line is 2.
Therefore, the average cost of apples per pound is $2.
A consignment of eggs was delivered damaged with 72 eggs being cracked, which is 12 percent of the total consignment. Calculate the total amount of eggs in the consignment. Find the answer.
Answer:
There were 600 eggs in total.
Step-by-step explanation:
In order to find the total amount of eggs we need to divide the percent by the eggs cracked.
First we need to convert 12% to a decimal, 0.12.
Now we need to divide the cracked eggs by the percent.
So:
72 ÷ 0.12 = 600
Solve for b.
-9
____ + B= -1
3
Answer:
b = 6
Step-by-step explanation:
this is because you have to multiply by 3 on both sides then add 9 on both sides. then you get 6
Answer:
.
Step-by-step explanation:
What is the solution to the system of linear equations graphed below?
On a coordinate plane, 2 lines intersect at (0.5, 4).
(0, 4)
(4, one-half)
(one-half, 4)
Answer:
D
Step-by-step explanation:
I took the test
Answer:
Step-by-step explanation:
Solve the simultaneous equations:
5x + 3y = 9
7x - 2y = 25
x=__
y=__
Answer:
x= 3, y= -2
Step-by-step explanation:
5x+3y= 9
x= 25÷7 + 2÷7 y
5(25÷7 +2÷7 y)
5( 25÷7 +2÷7 y ) + 3y= 9
y= -2
x= 25÷7 + 2÷7 x (-2)
x= 3
In the parrallelogram, find y.
Answer: I think it’s b which is also 5
Step-by-step explanation:
In the link
if I did it wrong someone pls correct me
Curtis estimates that he can run 18 mph. About how many feet per second can Curtis run if there are 5280 feet in a mile?
Answer:26.4 feet per second
Step-by-step explanation:
Answer:
26.4 fps (feet per second)
Step-by-step explanation:
Given the functionſ defined by the formula f(x) = 2x +1 find the following:
Answer:
f(4) is 9
f(-5) is -9
f(0) is 1
f(1/2) is 2
PLEASE HURRY I HAVE A LITTLE BIT OF TIME TO TURN IT IN
when is Ann's distance from home staying the same? give a reason to support your answer
Answer:
4.25-5 minutes
Step-by-step explanation:
Its shown in the graph and table that the speed was 0 between those times.
I NEED HELP! If f(x)= 5x^2-3 and g(x)=x^2-4x-8, find (f-g)(x).
Answer:
(f - g)(x) = 4x² + 4x + 5
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyAlgebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define
f(x) = 5x² - 3
g(x) = x² - 4x - 8
(f - g)(x) is f(x) - g(x)
Step 2: Find (f - g)(x)
Substitute: (f - g)(x) = 5x² - 3 - (x² - 4x - 8)Distribute -1: (f - g)(x) = 5x² - 3 - x² + 4x + 8Combine like terms: (f - g)(x) = 4x² + 4x + 5solve for 2(x−3)<6 equation
Answer:
x < 6
Step-by-step explanation:
Distribute the 2 to the parentheses:
2(x − 3) < 6
2x - 6 < 6
Solve for x:
2x < 12
x < 6
So, x < 6 is the answer.
3x-2 when x=3 what is the answer
Answer:
for me I think it's
Step-by-step explanation:
the answer is 7
A bird traveled a horizontal distance of 300 ft, over a distance that
rose 150 ft. What is the angle of elevation that the bird made with the
ground (round to the nearest tenth)?
9514 1404 393
Answer:
26.6°
Step-by-step explanation:
The tangent of the elevation angle is the ratio of rise to run:
tan(angle) = 150 ft/(300 ft) = 1/2
Then the angle is the arctangent of this value:
angle = arctan(1/2) ≈ 26.6°
Plz, Help me with this question.
Answer:
Hello :D
Step-by-step explanation:
Answer:
x+7 i think
Step-by-step explanation:
I’ll mark as BRANLIEST!!!
Plz help me!!! 45 POINTS!!
Pleaseeee helpppppp !!!!!!!Will mark Brianliest !!!!!!!!!!!!!
Answer:
So
GJ=35
Step-by-step explanation:
Two triangles are similar so
The equation is
4/24=x/30
1/6=x/30
6x=30
x=5
What is the slope of the line shown?
Find the dot product of the given vectors.
u= -4i + 8j
v= -2i+j
Answer:
16
Step-by-step explanation:
Given
u = x₁i + y₁j and v = x₂i + y₂j , then
u • v = x₁x₂ + y₁y₂
Given
u = - 4i + 8j and v = - 2i + j , then
u • v = ( - 4 × - 2) + (8 × 1) = 8 + 8 = 16
-2+3x=-(x+6) solve for x
Answer:
x = -1
Step-by-step explanation:
-2+3x=-(x+6) distrbute the negative
-2+3x=-x-6 combine liked terms (added x & 2 to each side)
+2 +x +x +2
4x = -4 isolate x (divide 4 from each side)
x = -1
Answer:
X=-1
Step-by-step explanation:
First, add 2 on both sides to eliminate -2 and to get 3x alone. Now you have the product of 3x=-x-4. Next, add x on both sides to isolate negative 4. Once, you have done this you get 4x=-4. Now you divide by 4 to get x alone. And you get the product x= -1.
whats the LCM of 5 and 60?
John and Ndiba each improved their yards by planting rose bushes and geraniums. They bought
their supplies from the same store. John spent $44 on 7 rose bushes and 5 geraniums. Ndiba
spent $112 on 14 rose bushes and 14 geraniums. Find the cost of one rose bush and the cost of
one geranium.
i wanna know too.... dis u get the answer
9x+16
3
<7
solve each inequality
Step-by-step explanation:
9+16×+3
28×<7
35x it's answer can I help
There are 430 people in a wave pool. Write an inequality that represents how many more people p can enter the pool.
Which of the following visual representation correctly displays a relationship between sets of real numbers
PLEASE HELP
Answer:
d. J
Step-by-step explanation:
Real numbers are the vast set of numbers that broadly categorize into Rational and Irrationals (and also the Transcendentals, which are irrational too). Every rational number and every irrational number are characteristicly different from each other. Following this order, all rationals and irrationals are real numbers. This order is best represented in the Figure J.
Answer:
J
Step-by-step explanation:
Real numbers are classified into two types,
(i) Rational numbers - A number which can be expressed as fraction, ratio or percentage is called as rational number
(ii)Irrational numbers - A number which is not rational, (i.e) cannot be expressed as a ratio or percentage is called as irrational number.
Since there are no common numbers in rational and irrational, they cannot be expressed as "G" option.
Real numbers are formed by the union of rational and irrational numbers.
What does a graph look like when y=-2+5?
if my father left to go get milk in 2007, and he said it needs to be the special Russian milk, and it’s 2020 now, how much longer will he take to come back home???
(show ur work plsssss)
Hmmm according to my calculations “ n e v e r “
Can u help me please?
Answer:
0.407 because in the others 7 comes before the 0
Bob invited 11 friends to his birthday party. He and his friends each ate two pieces of pizza. If they were eight slices in each whole pizza, how many whole pizzas do they fit in all?
Answer:
3 whole pizzas required.
Step-by-step explanation:
Given that:
Total number of friends invited by Bob = 11
Total number of people on the birthday party = 11 friends + 1 Bob himself = 12
Each friend has eaten = 2 pieces of pizza
Number of slices in one whole pizza = 8
To find:
Number of whole pizzas required at the birthday party.
Solution:
First of all, let us find the number of slices required for the birthday party.
Number of slices of pizza required for the birthday party = Number of slices eaten by each person multiplied by number of persons at party.
Number of slices of pizza required for the birthday party = 12 [tex]\times[/tex] 2 = 24
Now, let us divide the total number of slices with the number of slices in one whole pizza to find the total number of whole pizzas required for the party.
Number of whole pizzas required:
[tex]\dfrac{24}{8} = \bold{3}[/tex]