Answers
Answer:
3 and -4
Step-by-step explanation:
this is simple but difficult
let the number be x and second number be y
3x + 2y=1
x-y/2=5
from the 2nd equation
x-y/2=5
x=5+y/2
substitute value for x into equation 1
3x + 2y=1
3(5+y/2) + 2y= 1
15 +3y/2 +2y=1
15 + 7y/2=1
7y/2= 1 - 15
7y/2=-14
cross multiply
7y= -28
y= -28/7
y= -4
therefore second number is -4
substitute value for y into 1st equation
3x + 2y=1
3x + 2(-4) = 1
3x - 8= 1
3x= 1+8
3x= 9
x= 9/3
x= 3
therefore first number is 3
therefore two numbers are;
3 and -4
Related Questions
Find m Find m Find m Find m Find m
Answers
Answer:
I think you have to add those up then divid by 2 if im not mistake.
Step-by-step explanation:i learn this in middle school
James wants to draw a line diagonally across a rectangular piece of paper. If the paper measures 9 inches by 12 inches, what
is the minimum length of the straight edge he needs to make the line?
15 inches
21 inches
3 inches
108 inches
Answers
the ratio of 2250 to 2000
Answers
Answer:
9:8
Step-by-step explanation:
2250/2000
= 225/200
=45/40
=9/8
=9:8
Answer:
Your answer is 9:8
Step-by-step explanation:
3x + 2 6x - 20 Enter
Answers
Answer:
=3x+26x-20
=29x-20
Hope this helps! have a great day ahead! :D
Answer:
= 29x-20
Step-by-step explanation:
= 3x + 2 6x - 20
= 29x-20
Hope this answer helps you :)
Have a great day
Mark brainliest
3. Sam has a total of 22 quarters and nickels. The coins total value is $2.90. How many quarters and nickels does he have?
Answers
Answer:
13 Nickels and 9 Quarters
Step-by-step explanation:
9 Quarters gives you $2.25
13 Nickels gives you $.65
add both totals and you get $2.90
what is the least number that must be subtracted from 3793 so as to get a perfect square? also find the square root of the number so obtained.
Answers
Answer:
72
Step-by-step explanation:
3793 - 72 = 3721
[tex]\sqrt{3721}[/tex] =61
What is the cost of 18 toy cars?
O $12
O $20
O $22.
O $27
Answers
Answer:
27
Step-by-step explanation:
Answer:
The answer is $27.
Step-by-step explanation:
In a specific arithmetic sequence, if -4 is the first term and 10 is the third term, which term is 157?
Answers
Step-by-step explanation:
everything can be found in the picture
The nth term of an arithmetic sequence is expressed as Tn = a +(n - 1)d. The 157th term of the sequence is 2180
Arithmetic sequenceThe nth term of an arithmetic sequence is expressed as:
Tn = a +(n - 1)d
where
a is the first termd is the common differencen is the number of termsIf -4 is the first term and 10 is the third term, then;
a = -4
a + d = 10
d = 10 - (-4)
d = 14
Determine the 157th term
T157 = -4 + (157 - 1)(14)
T157 = -4 + (156*14)
T157 = 2180
Hence the 157th term of the sequence is 2180
Learn more on sequence here: https://brainly.com/question/6561461
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help
x - y + z; when x = 10, y = 2 and z = 15
x^3 - 9; when x = 3
6.5 - n; when n = 1.8
what are the answers? I need help asap :(
Answers
Answer:
the first one is 23
the second 18
the third 4.7
Step-by-step explanation:
10-2+15 = 8+15 = 23
x³-9 = 3³-9 = 27-9= 18
6.5-n= 6.5-1.8= 4.7
Explain how knowing the formula for the area of a parallelogram is useful for figuring out the area of a trapezoid.
Answers
Answer:see the picture
Step-by-step explanation:
Simplify. Express the answers using positive exponents:
Help me on this, Points are 2x than they usually are.
Answers
Answer:
[tex]\frac{-1}{2}ab^{12}[/tex]
[tex]\frac{w^{10}}{3y^4}[/tex]
Step-by-step explanation:
Given the expression;
[tex]\frac{-2a^2b^4}{4ab^{-8}}\\= \frac{-2}{4}*a^{2-1}b^{4-(-8)}\\= \frac{-1}{2}ab^{12}[/tex]
Similarly for the expression;
[tex]\frac{-5w^4y^{-2}}{-15w^{-6}y^2}\\= \frac{-5}{-15}*w^{4-(-6)}y^{-2-2}\\= \frac{1}{3}w^{10}y^{-4} \\= \frac{w^{10}}{3y^4}[/tex]
I really need help:(
Answers
Answer:
1. e
2. c
3. d
4. a
5. b
Step-by-step explanation:
Jacob earns $5 for each hour of yard work. Write an equation that shows the relationship between the time spent x and the amount earned y.
Answers
Answer:
x = 5 y = 25
x = 10 y = 50
Step-by-step explanation:
Daniel goes out to lunch. The bill, before tax and tip, was $14.20. A sales tax of 8% was added on. Daniel tipped 24% on the amount after the sales tax was added. What was the total cost of the meal, plus tax and tip? Round to the nearest cent.
Answers
Answer: $19.02
Step-by-step explanation:
First find the sales tax paid. It will be paid on the cost of the meal:
= 14.20 * 8%
= $1.14
Then find the tip which was done after the sales tax was added:
= 24% * (14.20 + 1.14)
= 24% * 15.34
= $3.68
The total cost is:
= Gross amount + Sales tax + tip
= 14.20 + 1.14 + 3.68
= $19.02
The half-life of a radioactive kind of protactinium is one minute. If you start with 88 g of it, how much will be left over after two minutes?
Answers
Answer:
22 grams
Step-by-step explanation:
Divide the number of minutes by the half life... 2/1=2
Multiply starting amount by one-half (1/2) a total of the number of half-lives that have passed. ( 2 half lives in our case)
88 * 1/2 *1/2 = 22 grams also written as 88(1/2)^2
what is the value of 2 X ?
Answers
5
Find the circumference of the circle. Use 3.14 for the value of
pi. Round your answer to the nearest tenth.
12 ft
Answers
48/60 as a fraction in its simplest form.
Answers
Step-by-step explanation:
4/5 is the simplified fraction for 48/60.
simplify: 4a + 3h + a + 2h
(with the steps please)
Answers
Answer:
5a+5h
Step-by-step explanation:
4a+3h+a+2h
add all the common factors
5a+5h
then that is your answer because you can not add the other ones because they do not have the same letter but if they were the same letter then you would add them.
Answer:
Step-by-step explanation:
4a + 3h + a + 2h
5a + 3h + 2h
Solution
5a + 5h
each cube is 1.5cm long calculate the surface area
I need this quick
Answers
Answer:
13.5
Step-by-step explanation:
6(1.5×1.5)
6(2.25)
13.5
Urgent helps bxjdidjdjjfjdhhdhdh
Answers
Answer:
l=40
Step-by-step explanation:
The area is calculated as
A = wl
1200=30l
1200/30=l
40=l
) Would you rather receive $1,500 a year for 12 years, or $1,200 a year for 20 years if the interest rate is 7%?
Answers
Answer:
$1200 should receive.
Step-by-step explanation:
To check whether to receive $1500 or $1200 just find the present values of each amount.
Present value of annuity $1500:
Present value of annuity = Annuity (P/A, 7%, 12)
Present value of annuity = 1500 (P/A, 7%, 12)
Present value of annuity = 1500 (7.9426)
Present value of annuity = $11913.9
Present value of annuity $1200:
Present value of annuity = Annuity (P/A, 7%, 20)
Present value of annuity = 1500 (P/A, 7%, 20)
Present value of annuity = 1500 (10.5940)
Present value of annuity = $15891
Thus, $1200 should receive.
if cos 23° =√1-t² ,express tan 113° in terms of t
Answers
Which of the following statements describes an angle bisector of angle ABC?
heagarty maths
Answers
Answer:
Given an angle ABC, it is possible to construct a line BF that divides the angle into two equal parts using only a straightedge and compass. Such a line is called an angle bisector. ... If we then construct the line BF, it will divide the original angle ABC into two equal angles.
Given an angle ABC, it is possible to construct a line BF that divides the angle into two equal parts using only a straightedge and compass
What is an angle bisector?An angle bisector or the bisector of an angle is a ray that divides an angle into two equal parts.
Given an angle ABC, it is possible to construct a line BF that divides the angle into two equal parts using only a straightedge and compass.
Such a line is called an angle bisector. ... If we then construct the line BF, it will divide the original angle ABC into two equal angles.
Hence an angle ABC, it is possible to construct a line BF that divides the angle into two equal parts using only a straightedge and compass
To know more about Angle bisector follow
https://brainly.com/question/24334771
#SPJ2
any method that uses formulas, figures, or proportions to measure an object Is a(n) ______?
Answers
Answer:
Indirect measurement
Step-by-step explanation:
please help im not sure if my answer is correct last test of the year really important answer for brainliest
Answers
Answer:
That's correct
Well done!!
Good job I hope you did good on the rest of your test :)
The cost of 9 trousers is $72 . Find the cost of 12 trousers
Answers
Answer:
x=96
Step-by-step explanation:
We can solve by writing ratios
9 trousers 12 trousers
------------------- = ----------------------
72 dollars x dollars
Using cross products
9x = 12 *72
9x =864
Divide by 9
9x/9 = 864/9
x=96
7+2ax =13 solve the equations for x and match the solution
Answers
Answer:
x = 3/a a cannot equal zero
Step-by-step explanation:
7+2ax =13
Subtract 7 from each side
7-7+2ax =13-7
2ax = 6
Divide each side by 2a
2ax/2a = 6/2a
x = 3/a a cannot equal zero
can someone help me please !!
Answers
Answer:
So if you take the diameter of the quotion of the Additional caustxof being to pig it is between 1 and 908
púa uses 6 cups of sugar too make 8 pies , at that rate how much sugar will it take too make 12 pies
Answers
Answer:
9
Step-by-step explanation:
for every pie pua needs 3/4 cups of sugar
you can know this by dividing the sugar by the pies
then you can multiply 12 by 3/4 to find how many cups are needed for 12 pies, which is 9
Answer:
9
Step-by-step explanation:
6 devided by 2 is three
8 divided by two is four
four times three makes the amount of pies you need
since you are making the times the new numbers amount, then you need to multiply the amount of sugar that you just devided by two by three