Plz HELP ME SOLVE THISS!! I will give 50 Brainly!! PER PERSON! solve this system of equations by substitution, show all work:
2b + 3s = 9.25, 3b + 4s = 13.25
Answers
Answer:
S=1.25
Step-by-step explanation:
If this is confusing pls let me know!! :) (p.s. sorry bout my handwriting lol)
A simple run down of the problem I guess is that first you need to solve one equation for either s or b. I chose the first equation to solve for b and I got b=(-3/2s)+(9.25/2). Then, the second thing you need to do is to put the answer to b in the second equation. This would be 3((-3/2s)+(9.25/2))+45 = 13.25. Then you basically solve that equation for s and you should get s=1.25. If you need to also find b you can plug s=1.25 into either of the starting equations. All done :) sorry this took long lol
Ans: The answer of your question is S=1.25
Related Questions
Please help with my work!
Answers
Answer:
x,y =3,-4
Step-by-step explanation:
// Solve equation [1] for the variable y
[1] y = 2x - 10
// Plug this in for variable y in equation [2]
[2] 3x - 2•(2x-10) = 17
[2] -x = -3
// Solve equation [2] for the variable x
[2] x = 3
// By now we know this much :
x = 3
y = 2x-10
// Use the x value to solve for y
y = 2(3)-10 = -4
Simplify the expression. 7d + 3 - 2d
Answers
Answer:
5d+3
Step-by-step explanation:
just as you combine regular numbers you can combine terms that have the same variable raised to the same exponent, and 7d-2d=5d. So the equation simplifies to 5d+3
Two straight lines have equations y = p x + 4 y = p x + 4 and p y = q x − 7 p y = q x − 7 , where p p and q q are constants. The two lines meet at the point ( 3 , 1 ) ( 3 , 1 ) . What is the value of q q ?
Answers
Answer:
q = [tex]\frac{8}{3}[/tex]
Step-by-step explanation:
The point of intersection (3, 1 ) is the solution to both equations
Using
y = qx - 7 and substituting x = 3, y = 1
1 = 3q - 7 ( add 7 to both sides )
8 = 3q ( divide both sides by 3 )
[tex]\frac{8}{3}[/tex] = q
Help please!
What transformation is this?
Answers
Answer:
Translation (x, y) → (x + 5, y + 7)Step-by-step explanation:
It seems the translation:
(x, y) → (x + 5, y + 7)R(-4, -1) → R'(-4 +5 = 1, -1 +7 = 6)
S(-6, 3) → S'(-6 + 5 = -1, 3+7 = 10)
What is the area of a circle that has a circumference of 87 pie
Answers
Answer:A≈602.32
C Circumference 87
Step-by-step explanation:Hope this helped u also may i plz have brainlist only if u wanna give me brainlist though! Have an great day kind sir or ma'am
3. Your neighbor has a large tree on his property, and he's worried that the next serious storm will knock the tree onto his house. However, tree removal is an
expensive service. Since your neighbor's budget is limited, you offer to help him determine how high the tree is. If the distance from the house to the tree is
greater than the height of the tree, then the house should be avoid damage should the tree ever fall.
Answers
Answer:
ok we dont know the height of the tree
Step-by-step explanation:
The vertex form of the equation of a parabola is y = 5(x-3)2 - 6.
What is the standard form of the equation?
Answers
9514 1404 393
Answer:
y = 5x² -30x +39
Step-by-step explanation:
Multiply it out and collect terms.
y = 5(x -3)² -6
y = 5(x² -6x +9) -6 . . . . . expand the square
y = 5x² -30x +45 -6 . . . . use the distributive property
y = 5x² -30x +39 . . . . . . collect terms
_____
The expansion of a binomial square is ...
(a +b)² = a² + 2ab + b²
In this problem, we have a=x, b=-3.
Answer:
y = 5x² -30x +39
the answer above me explains it better go look at it
what is the sqaure root of 184
Answers
Step-by-step explanation:
13.56 is the square root of 184
The area in square feet, inside a rectangle is given by the expression 1600 x? What is the value
of the area if x = 15 feet?
Answers
Answer:1375
Step-by-step explanation:
X= 15 is given
X squared is 15x15 = 225
1600 - 225= 1375
Answer:
Step-by-step explanation:
1600x=
x=15 feet
1600 x 15 Ft = 24000 Ft
A prescription for Singulair costs $14 for a month's supply. How much will this prescription cost for a year?
PLS HELP HW DUE IN 2MIN!!!!
Answers
Please help I have tried multiple times but keep getting it wrong.
Solve the following inequality, then graph the solution set. | x | − 6 ≥ − 4. Answer in interval notation.
Answers
Answer:
inequality form: x
x≤ 4 or x≥8
Interval Notation:
(-∞, 4] U[8,∞)
Explanation
Solve the following inequality, then graph the solution set. | x | − 6 ≥ − 4. Answer in interval notation.
I need help plz help me on this i will give u brainless on this question
Answers
Answer:
Equations: y=x+3 and y=-1/2x
solution: (-2,1)
Step-by-step explanation:
Can someone help me with the exterior angle sum?
Answers
Answer:
no sorry but it's okay you at least guess
Triangle 360/3=120
Pentagon 360/5=72
Quadrilateral 360/4=90
Hexagon 360/6=60
Convert to degrees
(pie over 2)
pie
——
2
Answers
Answer:
90°
Step-by-step explanation:
[tex](\pi /2) * 180 = 90[/tex]
Whenever you are required to transfer from Radians to Degrees, simply multiply the Numerator by 180° (180). Treat the [tex]\pi[/tex] as a variable such as x and y, and divide by the numerator.
7 of 11
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Practice: Find the Total
This meal costs $27.00.
A 7% sales tax is applied, followed by an automatic tip
of 18%.
What is the total with tax and tip?
Check My Work
Answers
Answer:
$33.75
Step-by-step explanation:
Tax: 27*0.07 = 1.89
Tip: 27*0.18 = 4.86
Total: 27 + 4.86 + 1.89 = 33.75
Solve 8x – 5 = 23 + 4x.
Answers
Answer: X equals 7
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
First you want to simplify the equation
8x + (-5) = 23 + 4x
-5 + 8x = 23 + 4x
Then solve for x, but before we do that we !!!must!!! move all terms that have x to the left. Everything else would go to the right.
So we add -4x to both sides ..
-5+ 8x + (-4x) = 23 + 4x + (-4x)
-5 + 4x = 23 + 4x + (-4x)
-5 + 4x = 23 +0
-5 + 4x = 23
Then add 5 to both sides of the equation:
-5 + 5 + 4x = 23 + 5
0 + 4x = 23 + 5
4x = 23 + 5
4x = 28
Then divide each side by 4:
x = 7
And there you have it. The answer is 7. Hope this helps! :)
Give three ratios equivalent to 30:40
Answers
Answer:
1. 60:80
2. 90:120
3. 120:160
Step-by-step explanation:
1. 30(2) : 40(2) = 60:80
2. 30(3) : 40(3) = 90:120
3. 30(4) : 40(4) = 120:160
Hello!!
Answer:
60:80
and
90:120
Hope this helps!!! :)
At the afternoon matinee movie, 3 adult tickets and 5 child tickets cost $46, and 6 adult tickets and 3 child tickets cost $57. Which two equations can be used to determine the price of each ticket?
Let x represent the cost of an adult ticket and y represent the cost of a child ticket.
A. 3x + 5y = 46
6x +y = 52
B. 3x + 6y = 46
5x + 5y = 57
C. 3x + 5y = 46
6x + 3y = 57
D. 3x + 6y = 63
5x + 3y = 40
Answers
Answer:
C
Step-by-step explanation:
3x + 5y = 46
6x + 3y = 57
hope this helps
Step by step pls I’ll make u brainly
Answers
Answer:
a = 6
Step-by-step explanation:
120 = 3 + 3(7a - 3) (by PEDMAS, expand parentheses first by distributive property)
120 = 3 + 7a(3) - 3(3)
120 = 3 + 21a - 9
120 = 21a - 6 (add 6 to both sides and rearrange)
21a = 120 + 6
21a = 126 (divide both sides by 21)
a = 126/21
a = 6
Step-by-step explanation:
120-(3+3*(7*a-3))=0
Step by step solution :
STEP
1
:
Equation at the end of step 1
120 - (3 + 3 • (7a - 3)) = 0
STEP
2
:
STEP
3
:
Pulling out like terms :
3.1 Pull out like factors :
126 - 21a = -21 • (a - 6)
Equation at the end of step
3
:
-21 • (a - 6) = 0
STEP
4
:
Equations which are never true:
4.1 Solve : -21 = 0
This equation has no solution.
A a non-zero constant never equals zero.
Solving a Single Variable Equation:
4.2 Solve : a-6 = 0
Add 6 to both sides of the equation :
a = 6
One solution was found :
a = 6
Jake lives 2⅓mile from school. He decides to walk to the shop on his way home. The shop is 1⅜mile from school. A) What is the shortest possible distance from the shop to his home? B) What is the largest possible distance from the shop to his home?
Answers
Answer:
Shortest distance = 23/24
Farthest distance = 3 17/24 miles
Step-by-step explanation:
Distance of home from school = 2 1/3 miles
Distance of shop from school = 1 3/8 miles
Shortest distance possible :
(2 1/3 - 1 3/8) miles
(7/3 - 11/8) miles
L. C. M = 24
(56 - 33) / 24
23 / 24 miles
The farthest distance :
(2 1/3 + 1 3/8) miles
(7/3 + 11/8) miles
L. C. M = 24
(56 + 33) / 24
89 / 24
= 3 17/24 miles
help, this is incorrect! (can you help with working out?)
Answers
Answer:
262 × 39 ÷ 100 = 10218 ÷ 100 = 102.18
Step-by-step explanation:
This is the correct answer your's is wrong.
Tim rides 3.2 miles on his bike everyday How far does Tim ride in one week
Answers
Answer:
22.4
Step-by-step explanation:
Just multiply 3.2 by 7 to get 22.4 miles a week. Easy.
How do I find the area of the shaded region
Answers
Answer:
Area of shaded region,
=(Area of bigger circle) - (Area of smaller circle)
Step-by-step explanation: took the quiz and got it right
45+72=5(5+9)
what is maya's eror
Mya did not write the common factor in the correct place.
Mya wrote two expressions that are not equivalent.
Mya did not use the correct operations in the equation.
Mya used a factor that is not common to 45 and 72.
Answers
Answer:
gggcfbgcjun
Step-by-step explanation:
gmkknnzksksjxndncudhudbiejufnridmwjdiendysheixnddyhdbeudbeudne8djeudneudhebdjrn8fjr
Answer:
117 just because it is atless
Simplify this expression (xy^4)^6
Answers
Hope it help
Answer:
x^6*y^24
Step-by-step explanation:
This will become:
[tex]x^6*(y^4)^6[/tex]
Next, multiply the exponents for y:
x^6 * y^24
So the answer is x^6*y^24
I need help >?<
What is the solution is?
Answers
I hope I helped
What is the value of x in the equation below
6(x-8)=72
Answers
Answer:
x = 20
Step-by-step explanation:
6(x-8)=72
6x-48=72
6x-48+48=72+48
6x=120
6x/6=120/6
x = 20
hope it's helpful ❤❤❤❤❤❤
THANK YOU.
#
Answer: x=20
Step-by-step explanation:
Distribute the 6 to the values in the parentheses
6x - 48 = 72
Add 48 to each side
6x = 120
Divide each side by 6
x = 20
A rectangle is 6 feet long by 4 feet wide.
If 2 feet are removed from the length of the rectangle, what would be the area, in square feet, of the new rectangle?
Answers
Answer:
6 - 2=4
4 x 4= 16
Step-by-step explanation:
Write 14 more then a number (pre algebra)
Answers
Answer:
x + 14
Step-by-step explanation:
Let's break it down to key terms:
14
more (+)
a number (x)
So 14 more than a number is just adding 14 to x.
x + 14
Hope this helps :)
The first night in a hotel costs 40 dollars. All additional nights cost 27 dollars. How many nights did we stay
at this hotel if the total bill was 148 dollars?
Answers
Answer:
5
Step-by-step explanation:
First, you would want to subtract the first nights cost from the bill, which you would get 108. And then you would want to divide 108 by how much it costs to stay additional night, so 108 divided by 27 = 4. But you have to remember to add the first night you stayed so it would be 5. I hope this helps :)
Answer:
4 nights
Step-by-step explanation:
148-40=108
108÷27=4
So, you spent 4 nights at the hotel.