Answers
Answer:
y = 1.5, x = [tex]1\frac{12}{13}[/tex]
Step-by-step explanation:
The given simultaneous equation system is;
-1 - 2·y = -4...(1)
13·x + 2·y = 28...(2)
By elimination method, we have;
From equation (1);
-1 - 2·y = -4
2·y = 4 - 1 = 3
y = 3/2 = 1.5
y = 1.5
We eliminate 'y' from equation (2) by replacing the value of 'y' with 1.5 as follows;
13·x + 2·y = 28
y = 1.5
∴ 13·x + 2 × 1.5 = 28
13·x = 28 - 3 = 25
x = 25/13 = [tex]1\frac{12}{13}[/tex] = [tex]1.\overline{923076}[/tex]
x = [tex]1\frac{12}{13}[/tex]
Related Questions
Help me please !!!!! I need help
Answers
10 percent of 300 is 30
3 hours and 10 minutes =190
What inequality is represented by this graph?
+
1 2
+
g
02
4 5 6
Ox>6
Ox<6
0 x
O XC6
07:26
Answers
Can someone plz help me! Thx!
Answers
Answer:
q
Step-by-step explanation:
a
Answer:
Step-by-step explanation:
The circumference of a circle is m. What is the area , in square meters ? Express your answer in terms of pi
Answers
Answer:
area = m²/2π
Step-by-step explanation:
∵ circumference of circle = 2πr = m
∴ r = m/2π
∵ area of circle = πr²
∴ area of circle = (m/2π)² × π = m²/2π² × π = m²/2π
hope this helps
What is the factorization of the trinomial below?
-2x^3-10x^2-12x
Answers
Answer: -2x (x+3) (x+2)
Step-by-step explanation:
Answer:
(−2x)(x+2)(x+3)
Step-by-step explanation:
−2x3−10x2−12x
=(−2x)(x+2)(x+3)
Answer:
(−2x)(x+2)(x+3)
Can someone tell me if this is right?
Answers
Answer:
Step-by-step explanation:
You have shaded 4/7=8/14
6/7=12/14
So you need to shade 12 boxes
Can someone help me please????
Answers
Please help me with the question please ASAP ASAP I’m begging please
Answers
Answer: a= 144. b= 67
Step-by-step explanation:
Angle b and the angle of measure 113 are same side interior angles which sum to 180 (When 2 parallel lines are cut by a transversal, special angles are formed)
113+b=180. Subtract 113 from both sides.
b= 67 degrees
Now that you have b, the interior angles of four sided figures sum to 360.
a+113+67+36=360. Combine like terms.
a+216=360. Subtract 216 from both sides.
a= 144 degrees
What is the coefficient in the expression 4x + 2
O2
O4
Ox
O+
Answers
A coefficient is a numerical or constant quantity placed before and multiplying the variable in an algebraic expression (e.g. 4 in 4x).
The 2 and + are out since they don't have variables(and the + is just a +).
So 4 and x are left. x is a variable, not a coefficient, so the last(and correct) answer is 4.
---
hope it helps
Help pls and thanks :)
(Are the two triangles similar? Explain, step by step, how you know. )
Answers
Answer:
The two triangles can be considered similar as Angle A is 70 degrees and Angle B is a congruent angle to Angle A, which can be proven by adding 70 to 110 which shows a 180 degree angle (flat angle). Therefore we know that this triangle is similar
Step-by-step explanation:
Amir has 48 ounces of cashews, walnuts, and pecans. He adds x ounces of peanuts to create a mixture. Write a function
M(x) that represents the number of ounces of all nuts in the mixture. Write a function N(x) that represents the number
of ounces of peanuts in the mixture. Then find (?) (x) and explain what this function represents.
Answers
Answer:
I don't know sorry
Step-by-step explanation:
ask tutor
The function N(x) that represents the number of ounces of peanuts in the mixture is N(x)=x.
What is the function?Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.
Given that, Amir has 48 ounces of cashews, walnuts, and pecans.
He adds x ounces of peanuts to create a mixture.
M(x) that represents the number of ounces of all nuts in the mixture.
M(x)=48
N(x) that represents the number of ounces of peanuts in the mixture.
So, N(x)=x
Now, (M/N)(x) = M(x)/N(x)
= 48/x
Therefore, the function N(x) that represents the number of ounces of peanuts in the mixture is N(x)=x.
To learn more about the function visit:
https://brainly.com/question/28303908.
#SPJ2
Work out ( 6x10^2) divide by (3x10^-5)
Give your answer in standard form.
Answers
skracanie ułamków
224/100 =
308/100 =
125/1000=
444\1000 =
Answers
Answer:
224/100 = 2 24/100
= 2 6/25
308/100 = 3 8/100
= 3 2/25
125/1000 = ⅛
444/1000 = 111/250
A meteorologist reports that the chance of snow is less than 30%. The correct inequality to represent this comparison is s < 30. The variable s represents the likelihood of snow.
Which numbers are solutions of the inequality?
Choose all that apply.
20%
35%
17%
30%
29 and one-half percent%
1.5%
Answers
The equation is less than 30 so any number smaller than 30 are correct.
Answers: 20%, 17%, 1.5%
Answer:
The equation is less than 30 so any number smaller than 30 are correct.
Answers: 20%, 17%, 1.5% 29 1/2%
Step-by-step explanation:
help me solve for x ?
Answers
Answer:
x = 12
Step-by-step explanation:
[tex](4x - 5) \degree +(3x + 11) \degree = 90\degree \\(complementary \: \angle s) \\ \\ (4x - 5 + 3x + 11)\degree = 90\degree \\ \\ (7x + 6)\degree = 90\degree \\ \\ 7x + 6 = 90 \\ \\ 7x = 90 - 6 \\ 7x = 84 \\ \\ x = \frac{84}{7} \\ \\ x = 12[/tex]
Bethany bought a box of markers. She gave 6 to her friend. If Bethany now has 52 markers, how many markers were in the box she bought?
Answers
Answer:
58 markers
Step-by-step explanation:
52 + 6 = 58
Answer:
58 markers
Step-by-step explanation:
x-6=52 Set up the problem. "x" represents the number of markers.
+6 +6 Add 6 to both sides to isolate x
x =58
Erin buys a bag of peanuts that weighs 3/4 of a pound later that week the bag is 2/3 full how much dose the bag of panuts wiegh now
Answers
Answer:
1 ÷ 2 pounds
Step-by-step explanation:
The computation is shown below:
As we know that
1 pound = 0.454 Kg
Peanut starting weight = 3 ÷ 4 of a pound.
In the case when the bag is 2/3 full, so the weight is
= 2 ÷ 3 × 3 ÷ 4
= 1 ÷ 2 pounds
PLEASE HELP WILL MARK YOU BRAINLIEST!! HOW DO YOU SOLVE 22 = -11k
Answers
1st: swap the side move 22 to the right side and -11k to the left.
2nd: divide both sides by -11k
3rd: k=-2
The temperature in February was at most 6°F. Use t as your variable.
Answers
Answer:
t ≤ 6°F
The temperature(t) was less than or equal to 6°F.
The coordinates of the vertices of a triangle are A( 2,3) , B ( 9,1) , C ( 12,14) Suppose each coordinate is multiplied by 3. What is the perimeter of this triangle?
Answers
9514 1404 393
Answer:
about 106.5 units
Step-by-step explanation:
The length of each side is found using the distance formula:
d = √((x2-x1)^2 +(y2-y1)^2)
For example, the length of side AB is ...
d = √((9 -2)^2 +(1 -3)^2) = √(7^2 +(-2)^2) = √53 ≈ 7.28
The other side lengths are calculated the same way. The sum of side lengths of the given triangle is ...
AB +BC +CA = 7.28 +13.34 +14.87 = 35.49
__
Multiplying each coordinate by 3 effectively dilates the triangle by a factor of 3 about the origin. That increases the perimeter by a factor of 3, so it is ...
3(35.49) ≈ 106.5 . . . . units
_____
I find it convenient to use a calculator or spreadsheet to do the tedious calculations.
Determine whether the given value is a solution of the equation.
11 = n + 6 ; n=5 true or false?
True - YES
False - NO
Answers
Answer:
That is true
Step-by-step explanation:
Hey There!
This is true because if you plug in 5 to n
5+6
then you get that it equals 11
So 5=n is true
hope this helps :)
If the edge length of a cube is 13 feet, what is the correct way to write the expression to represent the volume of the cube in exponential form? (2 points)
Answers
Answer:
take side as a
volume of cube=a×a×a
= 13×13×13
(im so sorry if im wrong)
H+ ions increase in concentration at lower pH values. Calculate how many more H+ ions there are in a solution at a pH = 2 than in a solution at a pH = 6. Find the concentration of H+ ions at a pH = 2 and at a pH = 6 in Table B. Then divide the concentration of H+ ions at a
pH = 2 by the of H+ ions at a pH = 6. Record your answer in Table C.
What is the concentration of H+ ions at a pH = 2?
mol/L
What is the concentration of H+ ions at a pH = 6?
mol/L
How many more H+ ions are there in a solution at a
pH = 2 than in a solution at a pH = 6?
Answers
Answer:
What is the concentration of H+ ions at a pH = 2?
⇒ 0.01 mol/L
What is the concentration of H+ ions at a pH = 6?
⇒ 0.000001 mol/L
How many more H+ ions are there in a solution at a
pH = 2 than in a solution at a pH = 6?
⇒ 10,000
Step-by-step explanation:
Answer:
What is the concentration of H+ ions at a pH = 2?
0.01
What is the concentration of H+ ions at a pH = 6?
0.000001
How many more H+ ions are there in a solution at a
pH = 2 than in a solution at a pH = 6?
10,000
Step-by-step explanation:
PLSSSSSSS HELPPPP ASAPPPP
Answers
Answer:
b
Step-by-step explanation:
figure 1 is maped to figure 2. check the difference
the distance between a number and 2 on the number line.
Answers
What is the other number and do you have like a picture
2) The box-and-whisker plot below represents the math test scores of 20 students.
HHHHHHHHHHHHHH
60
100
What percentage of the test scores are less than 722
Answers
Multi answer inequality! Please help and comment only if you know!
Answers
Answer:
-8, 0, and -12
Step-by-step explanation:
Using -7 would get you 8. Using -5 would get you 4
Need help with all three
Answers
Answer:
7. 3000
8. 768
9. 378
Step-by-step explanation:
7. 60×50=3000
8. 48×16=768
9. 21×18=378
What happens to the value of the expression b-1b−1b, minus, 1 as bbb increases?
Answers
Answer:
the answer is A It increases.
that's the right answer go add me snap cutegirllove17
Step-by-step explanation:
have a good day
Please help me solve 8n+2-6n-13=9+2n-13
Answers
Answer:
It has no solution, unless there's a specific way it needs to be solved
Step-by-step explanation: