Solve by elimination and show all steps please
3x=2y-7, 2x-y=10
Answers
Answer:
if you download the app photomath it will help you
Step-by-step explanation:
I promise!
Step-by-step explanation:
x=27 and y= 44
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Related Questions
A rectangular box is 40 cm wide and 36 cm high. If the surface area of the box is 7440 square centimeters, find the length of the box.
Answers
Answer:
The length of the rectangular box is 30 centimeters.
Step-by-step explanation:
Let suppose that rectangular box is closed. The rectangular box is represented by a parallelepiped, whose surface area ([tex]A_{s}[/tex]), measured in square centimeters, is defined by the following formula:
[tex]A_{s} = 2\cdot (w\cdot h + w\cdot l + h\cdot l)[/tex] (1)
Where:
[tex]w[/tex] - Width, measured in centimeters.
[tex]h[/tex] - Height, measured in centimeters.
[tex]l[/tex] - Length, measured in centimeters.
If we know that [tex]A_{s} = 7440\,cm^{2}[/tex], [tex]w = 40\,cm[/tex] and [tex]h = 36\,cm[/tex], then the length of the rectangular box is:
[tex]2880 +80\cdot l + 72\cdot l = 7440[/tex]
[tex]152\cdot l = 4560[/tex]
[tex]l = 30\,cm[/tex]
The length of the rectangular box is 30 centimeters.
Wich one is a better buy? Show your work.
Answers
Answer:
The second one because $2.50
Step-by-step explanation:10.5/3 1/3=3.15 6.25/2.5=2.50
Solve Question 2 for x, the number of bracelets Tasha bought:
Question 2: (Tasha bought some bracelets that cost $5 each and 2 hats that cost $12 each. The cost of her total purchase was $39. Which equation can be used to find x, the number of bracelets she bought?)
Answer: x = bracelets
Answers
Answer:
x=3 bracelets
Step-by-step explanation:
5(X)+2(12)=39
5X=39-24
5X=15
X=3
PLEASE HELP !!!!!!!!!!!! Translate this sentence into an equation.
The sum of 17 and Delia's savings is 52.
Use the variable d to represent Delia's savings.
Answers
the answertrrrkshajja
A line passes through (3, 7) and (6, 9). Which equation best represents the line?
(4 points)
A) y = 3 over 2 x + 5
B) y = 2 over 3 x + 5
C) y = 3x + 2
D) y = 2 over 3 x + 2
Answers
Answer:
https://brainly.com/question/2574086b
Step-by-step explanation:
https://brainly.com/question/2574086
Answer:
B
Step-by-step explanation:
Given two points, the equation of the line may be determined by,
y - y1 = ((y2 - y1) / (x2 - x1))(x - x1)
Substituting the given values,
y - 7 = ((9 - 7) / (6 - 3))(x - 3)
Simplification will yield to an answer of,
y = 2x/3 +5
Thus, the answer is the second choice.
The City Sights tour company had the same ratio of tourists to guides on both days this weekend. On Saturday, there were 120 tourists and 18 guides. On Sunday, there were 40 tourists.
How many guides were there on Sunday?
Answers
Answer:
There were 6 guides on Sunday.
Step-by-step explanation:
Same ratio
On Saturday, 120 tourists and 18 guides.
On Sunday, 40 tourists and x guides.
Due to the same ratio:
[tex]\frac{120}{40} = \frac{18}{x}[/tex]
[tex]3 = \frac{18}{x}[/tex]
[tex]3x = 18[/tex]
[tex]x = \frac{18}{3}[/tex]
[tex]x = 6[/tex]
There were 6 guides on Sunday.
Tonya has a 2-page story she wants to expand. She plans to write 3 pages per day until it is done. Which equation best represents the relationship?
Answers
Answer:
D. 60h = m
Step-by-step explanation:
A proportional equation that represents the relationship will be in the form of m = kh
Where,
Constant of proportionality = k = m/h
Using (2, 120),
k = 120/2
k = 60
Substitute k = 60 into m = kh
Thus:
m = 60h
This can also be written as 60h = m
five hotdogs cost $1.80.Each hotdog cost the same amount.What is the cost per hotdog in dollars and cents
Answers
Answer:
$0.36
Step-by-step explanation:
Answer:
$0.36
Step-by-step explanation:
You divide $1.80 by 5.
Help pls I need it before 11:59
Answers
Answer:
5/6
Step-by-step explanation:
probability of rolling a 5 on a die=1/6
P of not rolling a 5 = 1-1/6= 5/6
Find the area of the image below: (4 points)
01) 41 square units
2) 44 square units
3) 52 square units
4) 56 square units
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0.4(0.25)(0.01) is the problem
Answers
.4 x .25 = .1
.1 x .01 = .001
0.1 x 0.01
0.001
The answer is 0.001
I think this is what you need
What is the range of this data set?
2.5, 6.1, 9.7, 11.4, 17.5, 20.2, 1.1, 12.6, 18.8
16.3
17.7
18.8
19.1
Answers
Answer:
19.1
Step-by-step explanation:
Range = Maximum value - minimum value
= 20.2 - 1.1
= 19.1
Answer:
19.1
Step-by-step explanation:
when you solve range you take the highest point and the lowest point and subtract then that's the answer
the area of a circle is 94pi squared meters. What is the radius of the circle?
Answers
Answer: 47
Step-by-step explanation:
Radius is half of a crickets so if you divide 94 by 2 you will get 47
Which property of multiplication is shown?
6 x 5 = 5 x 6
Answers
Answer:
Commutative Property of Multiplication
I hope this helps you :D
Commutative
The commutative property tells us that two addition and multiplication sentences are equal no matter the order.
For example:
3+4=4+3
6 x 5= 5 x 6
Hope this helps. Please give brainiest.
(4x-4)-8x
a. -8x
b.-4x-4
c.-4x+4
d.12x-4
Answers
Answer:
-8x
Step-by-step explanation:
if it helps you then plzz mark me brainliest
will give brainliest
Answers
Answer:
3ft
Step-by-step explanation:
it takes a while to explain and I dont have much time, but the answer is 3
what is -9x - 5x + 6x + 3 = ?
Answers
Answer:
-8x + 3
Step-by-step explanation:
Which is an INCORRECT name for this angle?
Answers
Answer:
<FH
Step-by-step explanation:
The reason why is because FH is a line and everything else includes G, this answer does not.
What is 15% of 120? (:)) I ALSO NEED EXPLANATION
Answers
Answer:
Answer: 18
Step-by-step explanation:
Do 120 x 15%
Answer:
18
Step-by-step explanation:
15% is 15 out of 100, so in decimal form it would be 0.15. if you multiply 0.15 by 120 (0.15 * 120) you would get 18.
solve for the angle x
Answers
Answer:
x=75
Step-by-step explanation:
30+x+x=180
2x=150
x=75
1. Sam knows that his MP3 player has 40% of its battery life left and that the battery
charges by an additional 12 percentage points every 15 minutes. What percent of
the mp3's battery will be charged when Sam and his family leave?
I
Answers
Complete question :
Sam knows that his MP3 player has 40% of its battery life left and that the battery
charges by an additional 12 percentage points every 15 minutes. What percent of
the mp3's battery will be charged when Sam and his family leave? If mp3 was plugged in an hour before his family plan to leave.
Answer:
88%
Step-by-step explanation:
Time before leaving = 1hour
Current percentage = 40%
Charge rate = 12% every 15 minutes
Therefore,
Charge rate per minute :
12% / 15 = 0.8% per minute
Charge recieved after one hour (60 minutes) :
0.8% * 60
= 48%
Therefore, total charge after just before leaving is:
Current percentage + percentage received
40% + 48%
= 88%
helppppppppppppppppppppppppppp
Answers
= 2 * 3.14 * 4 * 12 + 2 * 3.14 * 4^2
= 301.44 + 100.48
Area of cylinder = 401.92 cm^2
Select the correct answer.
Find the solution(s) for x in the equation below.
A. x = -5
B. no solutions
C. x = 5
D. x = 5; x = -5
Answers
Answer:
Step-by-step explanation:
X=5; X=-5 this is the answer i put and got off math:::way
Which rule describes the translation?
O (x, y) = (x – 8, y - 3)
O (x, y) - (x - 3, y+8)
O (x, y) = (x + 8, y-3)
O (x, y) - (x + 3, y + 8)
Answers
Answer:
c
Step-by-step explanation:
translations assignment
A computer system valued at $1500 three years ago is now worth $600. Find the percentage decrease in the value or the computer system?
100 point answer please use the formula (P)(T)=A and show how you plugged everything in
Answers
Answer:2100-2200$
Step-by-step explanation:
Freddie made the number line below to model the laps he walks around a track at his
school. He walks a total of 1} miles. Each lap is į mile. How many laps does Freddie walk
around the track?
Answers
Answer:
On a standard running 400-meter track a mile is 4 laps… plus 9 more meters if you want to get all technical about it. A mile is specifically 1,609.3 meters.
Step-by-step explanation:
what fraction does each get if six people share one whole pizza
Answers
Answer:
Does it say how many peices the pizza has? (if not then 1/6 ^^)
HELP!!! NEED HELP! It is a very confusing lesson
Answers
Explanation: stem equals the first digit of the number, the stem equals the second digit of the number.
If you see that there is a 4 under the stem, and 2,2,3 under the leaf, that would mean that the numbers are 42, 42, 43
Use the graph off to find the value f(5).
Answers
Answer:
where is the graph
Step-by-step explanation:
someone please help!
Answers
Answer:
The answer would be option C