Answers
Answer:
Step-by-step explanation:
Solve 2x−9y=14;−5x+9y=−8
Steps:
I will solve your system by substitution.
(You can also solve this system by elimination.)
2x−9y=14;−5x+9y=−8
Step: Solve2x−9y=14for x:
2x−9y+9y=14+9y(Add 9y to both sides)
2x=9y+14
2x
2
=
9y+14
2
(Divide both sides by 2)
x= 9
2
y+7
Step: Substitute
9
2
y+7forxin−5x+9y=−8:
−5x+9y=−8
−5(
9
2
y+7)+9y=−8
−27
2
y−35=−8(Simplify both sides of the equation)
−27
2
y−35+35=−8+35(Add 35 to both sides)
−27
2
y=27
−27
2
y
−27
2
=
27
−27
2
(Divide both sides by (-27)/2)
y=−2
Step: Substitute−2foryinx=
9/ 2
y+7:
x= 9/ 2 y+7
x= 9/ 2 (−2)+7
x=−2(Simplify both sides of the equation)
Answer:
x=−2 and y=−2
Infanite many solutions
Related Questions
Kelly has $100 she received for her birthday She saves $10 each week from doing chores Which function can be used to find t the amount of money Kelly will have saved
Answers
Answer:
$620 every year
Step-by-step explanation:
Since the question didn't specify how long she would have to save for, let's just assume that it's one year. There are 52 weeks in a year which is $520, and on her birthday she would have an extra $100, so every year she saves $620 in total.
ILL WILL BRAINLIEST YOU IF YOU GET IT RIGHT
PLEASE HELP ME FIND THE DISTANCE OF THE DIAGONAL
Answers
Step-by-step explanation:
Let x be the diagonal distance,
by pythagoras' theorem,
[tex] {c}^{2} = {a}^{2} + {b}^{2} [/tex]
where c is the diagonal
a and b are the 2nd and 3rd longest side, interchangeable.
given a = 50m, b = 25m,
[tex] {c}^{2} = {50}^{2} + {25}^{2} \\ {c}^{2} = 2500 + 625 \\ {c}^{2} = 3125 \\ c = \sqrt{3125} \\ = 55.9m \: (nearest \: tenth)[/tex]
kk where my brainliest
Step-by-step explanation:
Explanation: You can find the diagonal of a rectangle if you have the width and the height. The diagonal equals the square root of the width squared plus the height squared.
help will mark brainliest, 100 points
Answers
Answer:
Slope: − 4
y-intercept: ( 0 , 0 )
x y 0/ 0
1 /− 4
Step-by-step explanation:
Give brainliest :)
Answer:
Slope: − 4
y-intercept: ( 0 , 0 )
x y 0/ 0
1 /− 4
Step-by-step explanation:
Determine whether -6 is a solution of the inequality.
x = 6
Yes
No
Answers
Answer:
no
Step-by-step explanation:
x must be 6
need help
problem/question in image below
Answers
Answer:
Option A would be the correct answer
I don't have an explanation to type but you can trust me :)
Please mark as brainliest for further answers :)Mike has a fish tank in the shape of a rectangular prism with dimesions of 6 feet by 5 feet by 3 feet. He has a canister that he uses to fill up the fish tank that is in the shape of a cylinder with a diameter of 2 feet and a height of 4 feet. How many tiems will he need to fil up the canister to fill up the tank?
Answers
Answer:
7 times
Step-by-step explanation:
To answer this question :
1. the volume of the rectangular prism has to b determined
2. the volume of the cannister has to be determined
3. divide the volume of the rectangular prism by the volume of the cannister
Volume of the rectangular prism = Width X Height X Length = 6 x 5 x 3 = 90ft³
Volume of a cylinder = πr²h
where
h = height
π = 3.14
Diameter = 2r
radius = 2/2 = 1 feet
3.14 x 1 x 4 = 12.56 feet
90 / 12.56 = 7.2 times
Approximating to the nearest whole number gives 7 times
what are systems of equations and inequalities definitions?
Answers
Answer:
A system of equations is a set of equations with the same variables. A system of inequalities is almost exactly the same, except you're working with inequalities instead of equations. To solve such a system, you need to find the variable values that will make each inequality true at the same time.
Step-by-step explanation:
Hope this helps. :D
63
Which expression is not equivalent to
66
A
62
B
1
216
1
D
Answers
Answer:1216
Step-by-step explanation:
It’s to big and if this helps plz but a brainly :)
******WORTH 85 POINTS******WILL MARK BRAINLIEST*****PLEASE ANSWER ALL QUESTIONS****
A catering company is setting up tables for a big event that will host 360 people. When they set up the tables they need 2 forks for each
child and 5 forks for each adult. The company ordered a total of 1470 forks. Set up a system of equations involving the number of adults,
a, and the number of children, c, and solve to find out how many of each attended the event.
A) Create an equation to represent the breakdown of people attending this event (children and adults).
B) Create an equation to model the number of forks used at this event.
C) Solve the system you created and write down the number of Children and Adults that attended.
Answers
180 c
70 a
360 divided by 2 = 180 c
360 divided by 5 = 70 a
Help please I need help
Answers
Answer:
12=4 3 4=2 2
Step-by-step explanation:
Which statement about the data is true
Answers
Answer:
D. A value of 0.9 is more than 2 standard deviations from the mean.
Step-by-step explanation:
A is wrong, because the standard deviation is +/-0.15 (the measure up or down from the mean)
B is wrong, because the mean is exactly 0.5
C is wrong, because 1 standard deviation up from the mean is 0.65, and 0.7 is outside of that.
What is the surface area of the cone? (Use 3.14 for π.)
339.12 cm ^2
715.92 cm ^2
307.72 cm ^2
417.62 cm ^2
Answers
Answer:
tambil anseeciot
Step-by-step explanation:
HELP PLEASE Quadratic Equations Math Nation
Answers
Answer:
its 5/6
Step-by-step explanation:
we just group things around and we have this
36 m^2 - 60 m = -25
Alternate forms:
12 m (3 m - 5) = -25
36 m^2 - 60 m + 25 = 0
Solution:
m = 5/6
What is the selling price per widget as a function of the
number of widgets produced, and what should the
selling price be if 15 widgets are produced?
Answers
Answer:
1240 widgets
Step-by-step explanation:
The value of the function at 870, the local maximum, is
= -0.02(870)2 + 34.80(870) - 4700
= -0.02(756900) + 30276 - 4700
= -15138 + 25576
= 10438
So the vertex is (870, 10438)
The cost t the company to produce 870 widgets is
C(870) = 4700 + 5.20(870) = 4700 + 4524 = 9224
So, the cost of the widgets plus the profit must be equal to the total sales, which is divided by the number of widgets reveal their individual price.
(10438 + 9224)/870 = 19662/870 = $22.60
P(x) = 7700
- 0.02x2 + 34.80x - 4700 = 7700
-0.02x2 + 34.80x -12400 = 0
x = {-34.80 ± √[(34.80)2 - 4(-0.02)(-12400)]}/2(-0.02)
x = [-34.80 ± √(1211.04 - 992)]/(-0.04)
x = (-34.80 ± √219.04)/(-0.04)
x = (-34.80 ± 14.8)/(-0.04)
x = 870 ± 370
so, $7700 in profits will be earned at either 500 widgets or 1240 widgets
How could an Environmental Science and Protection Technician and an Environmental Engineering Technician be compared?
The careers are basically the same because both focus on protecting the environment.
Both focus on protecting the environment, but an Environmental Science and Protection Technician uses equipment to reduce the impact of issues while an Environmental Engineering Technician performs tests to identify issues.
Both focus on protecting the environment, but an Environmental Science and Protection Technician performs tests to identify issues while an Environmental Engineering Technician uses equipment to reduce the impact of issues.
The careers are different and belong to different career pathways within Manufacturing.
Answers
Answer:
the third one is correct. based on recent studies that i have read based on this topic. it should be right.
brainliest?
Step-by-step explanation:
3
Step-by-step explanation
edg
HELP ME PLEASE I need it
Answers
f=1/5 x^2 + -2/5x
can i get some help please i would really appreciate it ;)
Answers
Select the statement that describes this expression: 5 x (3 + 4) − 4. (2 points)
5 times the sum of 3 and 4, then subtract 4
5 times 3 plus 4 minus 4
5 more than the sum of 3 and 4, and then subtract 4
5 times 3 plus the difference of 3 and 4
Answers
Answer:
5 times the sum of 3 and 4, then subtract 4
Answer:
5 times the sum of 3 and 4, then subtract 4
Step-by-step explanation:
Hope this helps
can someone please help me.
Answers
Answer:
y=70° x=11
Step-by-step explanation:
.............ur welcome...........
Without solving, what can you tell about the solution to this equation? 0.002n + 15 = 2
Answers
Answer:
its easy
Step-by-step explanation:
cause it is
Write a word sentence for the equation y + 3 = 5.
Answers
Answer:
A number plus 3, sum is 5.
Mr. Nguyen opened a savings account with an initial deposit of $480 and will not make any additional deposits or withdrawals. The account earns 2% simple interest. What is the total amount that Mr. Nguyen will have in his account at the end of 3 years?
A $28.80
B $2,880.00
C $508.80
D $768.00
Answers
Answer:
c
Step-by-step explanation:
Q Search CR FSA Review - EE 11 and EE 2.4 (Intensive Mathematics - Period 3) Close Question Trina increased the water in her new backyard fish pond by forty gallons and needs to add more. Her pond can hold a maximum of 256 gallons. Her garden hose can add 48 gallons of water in 2 minutes. Write an inequality in terms of m to represent the number of minutes Trina can run the water hose to add more water to the pond without adding the maximum amount in case of rain. A 7 B. 7.5 C. 8 D. 9.75 E 10.3 < 11:18 AM 4/23/2021 hp
Answers
Answer:
work hard k
Step-by-step explanation:
The number of minutes Trina can run the water hose to add more water to the pond without adding the maximum amount in case of rain is 24m < 256
What is an inequality?An inequality is an expression that shows the non equal comparison of two or more numbers and variables.
Let m represent the number of minutes Trina can run the water hose to add more water to the pond without adding the maximum amount in case of rain.
Hence:
(48/2)m < 256
24m < 256
The number of minutes Trina can run the water hose to add more water to the pond without adding the maximum amount in case of rain is 24m < 256
Find out more on inequality at: https://brainly.com/question/24372553
Evaluate the expression below
(1/7)³
Answers
Answer:
1/49
Step-by-step explanation:
[tex] \purple{ \tt{ \huge{ \: ✨Answer ✨ \: }}}[/tex]
[tex] \: \: \: \: \: \: \: \: \: \: \: \: \red{ \boxed{ \boxed{ \tt{ \huge{{ \: {7}^{ - 3}}}}}}} [/tex]
Find the slope from the table:
X | Y
0 | -1
2 | 3
5 | 9
6 | 11
Answers
Answer:
The slope is 2
Step-by-step explanation:
Pick two points.
ex: (0,-1) and (2,3)
do the equation below where 0=x1, -1=y1, 2=x2, 3=y2
y2-y1 divided by x2-x1
3-(-1) divided by 2-0
4/2
=2
sorry this was kind of hard to explain on a computer :/
Anyone know this cause my sister been lost for a day on this. I know it's nice t that hard to most of y'all but it's hard for her. ( will give big brain if I can)
Answers
Answer: The book tax is $1.10 and the video game is $3.40 so i'll let you figure this out
tell your sister that the nae nae frog has blessed her with the answer
Camden put $25,000 in an investment 10 years ago. The investment increased in value by 5.6% per year. What is the value of the investment now?
Answers
Answer:
$26,000
Step-by-step explanation:
5.6% of $25,000
=$1400
$1400+$25,000= $26,000
The area of a triangle is 12 1/2 the area of a parallelogram with the same base and height.
True or false?
Answers
Answer: True
Step-by-step explanation: Hope this help :D
What is the following product
Answers
Answer:
the answer is 7x^2-12x square root of 14 +72 (option 2)
Step-by-step explanation:
A roller coaster goes down 0 feet and then up 55 feet.
Answers
Answer:
was that the full question? i cant seem to understand what your asking
Step-by-step explanation:
