Answers
Related Questions
Solve each system of equations.
2x- 4y = 20
x=4
Answers
Answer:
(x,y)=(4,-3)
Step-by-step explanation:
2x- 4y = 20
x=4
Substitute the value of x
2*4-4y=20
Solve equation
y=-3
A possible solution is
(x,y)=(4,-3)
Check the solution
2*4-4*(-3)=20
4=4
Simplify
20=20
4=4
The ordered pair is the solution
The solution of the given system of equations is y = -3.
What is the equation?A formula known as an equation uses the same sign to denote the equality of two expressions.
In another word, the equation must be constrained with some constraints.
For example 5x + 4y = -8
Given the set of equations,
2x- 4y = 20
x=4
By substitution,
2(4) - 4y = 20
8 - 4y = 20
-4y = 20 - 8
-4y = 12
By multiplying by -1 both sides
4y = -12
By dividing 4 both sides
y = -3
Hence "The solution of the given system of equations is y = -3".
For more about the equation,
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I need help please, please help me it done tomorrow
Answers
7. False
Step by step:
Answer:
Step-by-step explanation:
6). 8 - x ≥ 3 ; x = 2
8 - 2 ≥ 3
6 ≥ 3 ( true) ⇒ Yes, x = 2 is the solution.
7). 15 ≤ 4w ; w = 3
15 ≤ 4(3)
15 ≤ 12 (false) ⇒ NO, w = 3 is not a solution.
Simplify.
(8) = 81
DONE
Answers
Answer:
What are we supposed to simplify? 8/81?
Step-by-step explanation:
Solve -11h − 27 ≤ 16h for h.
Answers
The Answer:
[tex]h \geqslant - \frac{27}{17} [/tex]
Answer:
h ≥ -1
Step-by-step explanation:
i took a quiz and got it right
hope this helps :)
Sophia bakes 120 cookies in 6 hours. If she bakes the
same number of cookies every hour, how many does she
bake in 2 hours?
Answers
Answer:
40 cookies
Step-by-step explanation: She would bake 40 cookies in 2 hours because, if she baked 120 in 6 hours it would be like 6 + 6 = 12 but add the zero so yea
please help this is the only question im stuck on
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is my answer correct??
Answers
Answer:
no
Step-by-step explanation:
Answer:
you are correct!!
Step-by-step explanation:
Colleen is selling tubs of popcorn to raise money for the school choir. Her goal is to raise $150. Colleen starts with 40 tubs of popcorn, and she has already sold
3/4 of them. If each tub of popcorn sells for $3.75, how much more money does Colleen need to raise to reach her goal?
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Colleen needs to raise $37.5 to reach her goal.
What is the arithmetic operation?In mathematics, the arithmetic operation has four main operators such as addition, subtraction, multiplication, and division.
The symbol of + represents addition.
The symbol of - represents subtraction
The symbol of × represents multiplication
The symbol of ÷ represents division.
The goal of Collen is 40 tubs.
3/4 of 40 = 30 tubs.
Money for 30 tubs
⇒ 30 × 3.75 = $112.5
She needs
$150 - $112.5 = $37.5
Hence " Colleen needs to raise $37.5 to reach her goal".
To learn more about the arithmetic operators,
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What is the surface area of the cylinder?
175π ft2
224π ft2
273π ft2
126π ft2
Answers
Step-by-step explanation:
A=2πrh+2πr2 ans for 1 one
Bernard ate part of a small pizza. He started with StartFraction 11 Over 12 EndFraction of a pizza but only ate Two-thirds of it. Which is the best estimate of the amount Bernard ate?
A. Bernard ate a little less than One-half of the pizza.
B. Bernard ate a little more than One-half of the pizza.
C. Bernard ate a little less than Two-thirds of the pizza.
D. Bernard ate a little more than Two-thirds of the pizza.
Answers
Answer:
b
Step-by-step explanation:
[tex]4x + 5y = 19 \\ x + 5y = 13[/tex]
I need some help putting it in ordered pair
Answers
X=13-5y
help plzzz I'm almost done
Answers
Step-by-step explanation:
7 and 4 are solutions the others not
Determine x for the problem
Answers
Answer:
Step-by-step explanation:
2d^5(3d)^x=162d^9
I would assume x is 4 since the ending power is 9. When you multiply powers you add them.
Find the x and y intercept of the following equation. 10x - 3y = 9
Answers
Answer:
x-intercept= ( 0.9, 0)
y-intercept= (0,-3)
Step-by-step explanation:
Graph out the equation and look for the x and y intercept.
Will mark brainliest if I can.
Answers
Answer:
(0, -4)
(2,0)
Step-by-step explanation:
Basically x intercept is (0, -4)
Y intercept is (2, 0)
Hope I helped!
pls help
A group of 8 people are picking up litter along a 4/5 km length of road. Each person is assigned an equal section of the road. How can you divide 4/5 km among 8 people?
Which expression is equivalent to 4/5÷ 8?
(4/10, 4/8 8/10, 8/5) ÷ 8
Each person picks up litter from a (1/10 2/5 4/5) km length of the road.
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Answer:
A group of 8 people are picking up litter along a 4
5
km length of road. Each person is assigned an equal section of the road. How can you divide 4
5
km among 8 people?
Which expression is equivalent to 4
5
÷ 8?
✔ 8/10
÷ 8
Each person picks up litter from a
✔ 1/10
km length of the road.v
Step-by-step explanation:
Select all the pairs that could be reasonable approximations for the diameter and circumference of a circle. * 1 point A. 5 meters and 22 meters. B. 19 inches and 60 inches. C. 33 centimeters and 80 centimeters.
Answers
Answer:
B. 19 inches and 60 inches.
Step-by-step explanation:
Required
Select matching pairs
Represent diameter with D and Circumference with C
C is calculated as:
[tex]C = \pi D[/tex]
Where
[tex]\pi = 3.142[/tex]
A. D = 5m; C = 22m
Using: [tex]C = \pi D[/tex]
[tex]C = 3.142 * 5[/tex]
[tex]C = 15.71[/tex]
15.71 does not approximates to 22m.
Hence, the pair do not match
B. D = 19 in; C = 60 in
Using: [tex]C = \pi D[/tex]
[tex]C = 3.142 * 19[/tex]
[tex]C = 59.698[/tex]
59.698 approximates to 60.
Hence, the pair match
C. D = 33 cm; D = 80 cm.
Using: [tex]C = \pi D[/tex]
[tex]C =3.142 * 33[/tex]
[tex]C =103.686[/tex]
103.686 does not approximates to 22m.
Hence, the pair do not match
From the analysis above, only option B matches the diameter with the circumference
4y - 7 = 5x2 - x + 2 + 3y
Quadratic Equations
Options are No, One, Two.
I don't remember learning how to do it with more than a, b, and c variable. I'm so confused please help.
Answers
Answer:
y = 9 + -1x + 5x2
Step-by-step explanation:
Simplifying
4y + -7 = 5x2 + -1x + 2 + 3y
Reorder the terms:
-7 + 4y = 5x2 + -1x + 2 + 3y
Reorder the terms:
-7 + 4y = 2 + -1x + 5x2 + 3y
Solving
-7 + 4y = 2 + -1x + 5x2 + 3y
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Add '-3y' to each side of the equation.
-7 + 4y + -3y = 2 + -1x + 5x2 + 3y + -3y
Combine like terms: 4y + -3y = 1y
-7 + 1y = 2 + -1x + 5x2 + 3y + -3y
Combine like terms: 3y + -3y = 0
-7 + 1y = 2 + -1x + 5x2 + 0
-7 + 1y = 2 + -1x + 5x2
Add '7' to each side of the equation.
-7 + 7 + 1y = 2 + -1x + 7 + 5x2
Combine like terms: -7 + 7 = 0
0 + 1y = 2 + -1x + 7 + 5x2
1y = 2 + -1x + 7 + 5x2
Reorder the terms:
1y = 2 + 7 + -1x + 5x2
Combine like terms: 2 + 7 = 9
1y = 9 + -1x + 5x2
Divide each side by '1'.
y = 9 + -1x + 5x2
Simplifying
y = 9 + -1x + 5x2
A laundry mat can clean five shirts in 20 minutes. What is the rate of shirts per hour?
Answers
Answer:
15 shirts in one hour
Step-by-step explanation:
there are 60 minutes in an hour, 20 times 3 is 60, 5 times 3 is 15
what are the x and y intercepts of the function f(x)=x/x^2-3x
Answers
Answer:x and x2
Step-by-step explanation:
The graph represents the amount a waiter earns over time.
According to the graph, what is the constant of proportionality?
A. The waiter earns $25 an hour.
B. The waiter earns $20 an hour.
C. The waiter earns $15 an hour.
D. The waiter earns $10 an hour.
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I need help pls !!!!!!
Answers
[tex]\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the Trigonometry.
here, we use the Linear pair property of the adjacent angles.
We know that, all the adjacent angles in a linear pair add to get 180°
so we get as,
=> (n+6) +90°+(2n+3) =180°
=> (n+6) +(2n+3) =180-90
=> 3n+9 = 90
=> 3n= 90-9
=> 3n = 81
hence, n = 81/3
=> n = 27°
thus the value of n is 27° .
Please help I will mark Brainiest
Answers
Answer:
The rate of change is the slope
slope = 72/6 = 12
(0, 0) means zero pages have been printed in 0 minutes
(6, 72) means there have been 72 pages printed in 6 minutes
Step-by-step explanation:
The rate of change is the slope
slope = 72/6 = 12
(0, 0) means zero pages have been printed in 0 minutes
(6, 72) means there have been 72 pages printed in 6 minutes
is triangle MLK similar to Triangle GEF
Answers
Answer:
Step-by-step explanation:
ΔMLK and ΔGEF are not similar.
[tex]\frac{ML}{GE}[/tex] ≠ [tex]\frac{MK}{GF}[/tex]
Math help pleaseeeeeee
Answers
Answer:
c
Step-by-step explanation:
Question 1
(04.03 LC)
Which of the following options is an equivalent function to f(x) = 2(5)2X? (2 points)
a. f(x) = 50x
b. f(x) = 100x
c. f(x) = 2(25)
d. f(x) = 4(25)
Answers
Answer:
C is the correct answer
Answer:
the correct answer will be
c. f(x) = 2(25)^x
Step-by-step explanation:
In the diagram, GB = 2x + 3..
Triangle F D E has centroid G. Lines are drawn from each point to the midpoint of the opposite side to form line segments F A, D C, E B. The length of line segment F G is 5 x and the length of line segment G A is x + 9.
What is GB?
5 units
10 units
15 units
30 units
Answers
Answer:
C) 15 units
Step-by-step explanation:
just got it right on edge
Answer:
c 15 units
Step-by-step explanation:
* In your math class there are 2 boys for every 3 girls. Which of the following could be the ratio of boys to girls in the class? *
Answers
Answer:
the ratio is 2 to 3
Answer:
well if you had bigger number you would divide but you cant here it would stay the same
Step-by-step explanation: Hope this helps
2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2=
Answers
Answer:
..
Step-by-step explanation:
Diane walks 5 , 000 steps each day for exercise. Over the next year, her goal is to increase the number of steps she walks each day by 10 . Let f ( x ) represent the number of steps Diane plans to walk on day x since beginning her goal. What does f ( 100 ) = 6 , 000 represent? Select from the drop-down menus to correctly complete the sentence. Diane plans to walk steps on day since beginning her goal.
Answers
Answer:
Diane plans to walk [6,000] steps on day [100] since beginning her goal.
Step-by-step explanation:
10 x 100 = 1,000
5,000 + 1,000 = 6,000
100 days after adding 10 steps each day results in 6,000 steps
