Solve it by Substitution
no link or website a well download for the answer. please do step by step
Answers
To solve this problem, we first have to create a system of equations. After that, you set the equations equal to each other, and use that to simplify and find the value of one variable. Once that is found that answer can be plugged into one of the two original equations to find the other variable.
Related Questions
solve the simultaneous linear equations by using the elimination method
a - b = -3
3a - 4b = -5
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Answer:
3a -3b= -9
3a - 4b = -5
-------------------
b=-4
4a- 4b= -12
3a - 4b = -5
-------------------
a = -7
Find the 8th term of the geometric sequence whose common ratio is 3/2 and whose first term is 3
Answers
Answer:
51.2578125
Step-by-step explanation:
3 * (3/2)^(8 - 1)
3 *(3/2)^7
51.2578125
Is the following number rational or irrational?
-0.32
Choose 1 answer:
Rational
B
Irrational
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Write seven million two thousand five hundred in standard form
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Answer:
Seven million two thousand five hundred in standard form is 7002500
Answer:
Step-by-step explanation:
In words=7,002,500
In standard form:
7.0025×[tex]10^{6}[/tex]
If you need to ask any questions, please let me know.I need help in algebra
Answers
Answer: 8
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
How to solve
× + 5 = 13
subtract from both sides of the equation.
× + 5 - 5 = 13 - 5
13 - 5= 8
please give me brainliest and a thanks.
How to find the mode.
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Step-by-step explanation: The mode is the number that appears most frequently in a data set. If no Number repeats at all, then there is no mode. A data set can also have multiple modes if different numbers repeat the same amount of times.
If Maria designs a function to predict the amount of revenue, r, generated as a function of the number of people, n, who attend a fundraiser, explain why 13.5 would not be a member of this function's domain?
Answers
Answer:
Only whole numbers of people, n, are assumed in the calculation.
Step-by-step explanation:
The function relating the number of people, n, to the revenue, r, implicity assumes that only whole people will purchase tickets. 13.5 would mean that 13 normal people and 1/2 of a person bought tickets. This can't be in the domain, since the ticket saleperson would run away if 1/2 of a person showed up: thus no ticket sale.
Actually, it may depend on how one defines a person. Is it 1/2 physically, or 1/2 mentally? I've personally seen the latter show up at some fundraisers.
can you only give brainliest on your own question?
Answers
Answer:
im sorry i dont know but you can try
Step-by-step explanation:
6x-7y=7andx-7y=-8 find valve of x and y
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Answer:
x = 3, y = 11/7.
Step-by-step explanation:
6x - 7y = 7
x - 7y = -8 Subtract:
5x = 15
x = 3
3 - 7y = -8
-7y = -11
y = 11/7.
Answer: x = 3 and y = 11/7
Step-by-step explanation: 6x-7y+(-6x) = 7+(-6x) -7y/-7 = -6x+7/-7 y = 6/7x-1 x-7 (6/7 (x) -1) = -8 -5x+7+(-7) = -8+(-7) -5x/-5 = -15/-5 x = 3 y = 6/7x-1 y = (6/7) (3) -1 y = 18/7-1 18/7-1/1 18/7-7/7 y= 11/7 x = 3 and y = 11/7
Ed is on a road trip. He has already traveled 229 miles and is driving at a rate of 68 miles per hour. Which equation could be used to find how many hours, x, Ed has left in his road trip if he is traveling 647 total miles?
A.
68x + 647 = 229
B.
229x + 647 = 68
C.
68x + 229 = 647
D.
229x + 68 = 647
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Step-by-step explanation:
THE ANSWER IS D BUT ME 8S NOT SURE
Help help fast please first answer gets brainiest also needs to be clearly stated
Answers
Answer:
(1,5) and (4,7)
Step-by-step explanation:
The slope of linear equations can be determined by m = rise / run. Rise means the difference between the y coordinates of the two points, and run is that of the y coordinates. In this case rise / run = (7-5) / (4-1) = 2 / 3.
Is (3, 8) a solution to the equation y = 2x - 1? Explain your answer.
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Answer:
No, because 2x3 - 1 =5, which proves it is incorrect
Step-by-step explanation:
A science club has a muffin sale. Each bag has 25 muffins. There are 630 muffins to sell. About how many bags of muffins are there?
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Answer: 25.2 or 25
Step-by-step explanation:
Answer:
25
Step-by-step explanation:
because you just devide
6 weeks to 12 days answer?
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help need it done for tomorrow
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Step-by-step explanation:
the law of sines :
a/sin(A) = b/sin(B) = c/sin(C)
with the sides being opposite to the angles.
so,
14/sin(80) = x/sin(60)
x = 14×sin(60)/sin(80) ≈ 12.3cm
Determine the relationship between the two triangles and whether or not they can be proven to be congruent.
Choices for the first blank :
(SSS)
(SAS)
(AAS)
(ASA)
(AAA)
(SSA)
(HL)
Second blank choices :
Can be proven or cannot be proven congruent
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Answer:
They are congruent by HL
Step-by-step explanation:
Answer:
HL.
Step-by-step explanation:
2 right triangles.
Hypotenuse and 1 leg are congruent.
please help me!!!!!!!!
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Answer:
Step-by-step explanation:
Option a,c,e,f,i,j are quadratic equations. (Because its degree is 2)
Option b,d,g are linear equations. (Because its degree is 1)
Just option h is not quadratics nor linear.
If you need to ask any questions, please let me know.PLS HELP FOR BRAINLIST :D
Answers
Answer:
The third answer is the correct one.
Which function could be used to represent the sequence 8, 20, 50,
125, 312.5...., given that a, = 8?
(1) a, = 4,- 1 ta
(3) 4, = 4, + 1.5(, -1)
(2) a. = 2.5(
4-1) (4) 4 = (a), -1)
Answers
Answer: a = 2.5 (an-1)
Step-by-step explanation: trust me;)
The function which is used to represent the geometric progression 8, 20, 50, 125, 312.5, ... is [tex]a_{n} = 8(2.5)^{n-1}[/tex].
What is geometric progression?sequence where each succeeding term is produced by multiplying each preceding term by a fixed number, which is called a common ratio. This progression is as a geometric sequence of numbers.
Formula for nth term of geometric progression[tex]a_{n} =ar^{n-1}[/tex]
Where,
[tex]a_{n}[/tex] is the nth term of the sequence or geometric progression
n is the total number of terms
r is the common ratio
and a is the first term
According to the given question
We have
A geometric progression
8, 20, 50, 125, 312.5
Now the common ratio for the above progression is given by
[tex]r = \frac{20}{8} = 2.5[/tex]
And the first term is
a = 8
Therefore, the function which is used to represent the above sequence is given by
[tex]a_{n} = 8(2.5)^{n-1}[/tex]
Hence, the function which is used to represent the geometric progression 8, 20, 50, 125, 312.5, ... is [tex]a_{n} = 8(2.5)^{n-1}[/tex].
Learn more about geometric progression here:
https://brainly.com/question/4853032
#SPJ2
The elephants at the zoo eat 5/6 of a bucket of bananas each day. The zookeeper bought 2 1/2 buckets of bananas. How many days will the bananas last?
Answers
Answer:
3 days
Step-by-step explanation:
We know that there is 5/2 buckets of bananas, and each day 5/6 is eaten, so the answer is 5/2 divided by 5/6 which is 3
Answer:
3 days
Step-by-step explanation:
2 1/2 ÷ 5/6 = 3
Therefore, the bananas will last 3 days.
100 if u get this right ty have a nice day!
Answers
Answer:
9
Step-by-step explanation:
2+4 over 2
x 3
= 9
Find the area of the following shape. please show me your work so i can understand how to do this.
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Answer:
10
Step-by-step explanation:
count the full squares then add up the halfs and u get 10
All of the following are equivalent, except _____.
3x
2x 2
x(2 + 1)
2x + x
Answers
When there are two variables (letters) you combine them by adding
can someone help me?!!! I need help!! ASAP
Answers
Answer:
x=4.6
Step-by-step explanation:
step 1 : calculate angle P since you know 2 angles
Step 2 : 57° - 90° = 180° [interior angles of a triangle ]
Step 3 : x/sin(33°) =7.1/sin(57°)
: x= 7.1Sin(33°)/sin(57°)
: x=4.6
Find the distance between the two points in simplest radical form. Please help! <3
Answers
Answer: on the bottom is (-6,5) and on the top is (1,7)
Step-by-step explanation:
Carey Enterprises sold equipment on January 1, 2014 for $10,000. The equipment had cost $48,000. The balance in Accumulated Depreciation at January 1 is $40,000. Requirements: 1. Compute the gain or loss on sale 2. Prepare journal entries to record the sale of the equipment
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The sale of an equipment is referred to as disposal of an asset. The required answers are:
1. Gain on disposal = $2000
2. Journal entry for the disposal of the equipment.
Dr Cr
$ $
Cash acct. 10000
Asset 8000
P or L 2000
Disposal of an asset implies the sale of a plant, property, or equipment. This would ensure the recovery of the carrying amount of the item during sale.
1. The gain or loss on sale of the equipment can be determined by deducting its carrying amount from its recoverable amount.
Thus, to determine the gain or loss on disposal;
$'000
Cost 48
Accum. Depreciation 40
Carrying amount 8
Gain or loss on disposal = Selling price - carrying amount
= $10000 - $8000
= $2000
The gain on disposal is $2000.
2. Dr Cr
$ $
Cash acct. 10000
Asset 8000
P or L 2000
For more on disposal of asset, check: https://brainly.com/question/24098024
1/2÷1/2÷1/2÷1/2÷1/2÷1/2÷1/2 solve
Answers
Answer:
7
Step-by-step explanation:
I used keep change flip, and repeated the process and got the answer.
Hope this helps! :)
Answer:
1/72
Step-by-step explanation:
1/2÷1/2÷1/2÷1/2÷1/2÷1/2÷1/2
1/2 * 1/2 * 1/2 *1/2 *1/2* 1/2 * 2/1
1/72
What can i multiply 2/3 by to make a product of 1? Explain how you know.
Answers
Answer:
[tex]\mathsf{\frac{3}{2}}[/tex]
Step-by-step explanation:
In order to get a product of 1, you must multiply [tex]\mathsf{\: \frac{2}{3}}[/tex] with another fraction that will result in the same value for the numerator and the denominator, which is its reciprocal.
In other words, [tex]\mathsf{\frac{2}{3} \:\times\frac{3}{2}\:=\:\frac{6}{6}\:=\:1}[/tex].
Therefore, you could multiply [tex]\mathsf{\: \frac{2}{3}}[/tex] by [tex]\mathsf{\frac{3}{2}}[/tex] to make a product of 1.
I just woke up i need help ;-;
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Answer:
i think that the correct answer is 7/12
Please complete this question,
20 points will be given