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
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
Help me please !!!!! I need help
Answers
10 percent of 300 is 30
3 hours and 10 minutes =190
the distance between a number and 2 on the number line.
Answers
What is the other number and do you have like a picture
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:
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
PLSSSSSSS HELPPPP ASAPPPP
Answers
Answer:
b
Step-by-step explanation:
figure 1 is maped to figure 2. check the difference
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:
Can someone plz help me! Thx!
Answers
Answer:
q
Step-by-step explanation:
a
Answer:
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
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
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
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
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
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
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)
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
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:
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
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]
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 :)
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
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.
Work out ( 6x10^2) divide by (3x10^-5)
Give your answer in standard form.
Answers
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:
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
Can someone help me please????
Answers
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
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)
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.
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