Answer:
b = -1
x = 1
Step-by-step explanation:
8 - (b - 2) = 11
subtract 8 from both sides
- (b - 2) = 3
distribute
-b + 2 = 3
subtract 2 from both sides
-b = 1
now, to make the b positive, we make the other side negative by multiplying.
b = -1
-2x+ 4 = 5 -3x
subtract 4 from both sides
-2x = 1 -3x
add 3x to both sides
1x = 1
divide by 1
x = 1
(hopefully this helps?)
The perimeter of a rectangular garden is 78 feet. the width is six feet less than twice the length. Find the length and width of the garden.
Answer:
L=7.94 feet, W=9.88 feet
Step-by-step explanation:
perimeter=78 feet
LxW=78
2L-6=W
substitute
Lx(2L-6)=78
2L^2-6L=78
2L^2-6L-78=0
factor
(2L-15.86)(L+4.95)=0
2L=15.88, L=7.94
L=-7.94 feet
Helpppppppppppepppppppp
Answer:
C.right circular cylinder
hope it's helpful ❤❤❤❤
THANK YOU.
Answer:
option c
Step-by-step explanation:
right circular cylinder
A baker makes 84 loaves of bread, she burns 4. What fraction of the loaves does the burn? Simplify your answer.
Answer:
1/21
Step-by-step explanation:
The baker makes 84 loaves of bread,
Out of the 84 bread, 4 of them got burn.
Fraction that the loaves does the burn will be expressed in 4/84 = 1/21.
PLS HELP ASAP PLS PLS PLS
Answer:
i think is D
i hope it’s help you but if not DO NOT FORGET STAY SAFE AT HOME
The Richter scale measures the magnitude, M, of an earthquake as a function of its intensity, I, and the intensity of a reference earthquake, . Which equation could be used to find the intensity of an earthquake with a Richter scale magnitude of 4.8 in reference to an earthquake with an intensity of 1? A. B. C. D.
Answer:
The equation is = I = [tex]e^{4.8}[/tex]
Step-by-step explanation:
As given ,
M - magnitude of an earthquake
I - intensity of earthquake
I₀ - intensity of a reference earthquake
The relation between the three is as follows :
M = log([tex]\frac{I}{I0}[/tex] )
As given -
M = 4.8, I₀ = 1
⇒ 4.8 = log([tex]\frac{I}{1}[/tex]) = log(I)
⇒ 4.8 = log(I)
⇒I = [tex]e^{4.8}[/tex]
So, the equation becomes I = [tex]e^{4.8}[/tex]
If 26 articles cost $214.50, how much does 1 article cost?
Answer:
8.25 per one article
Step-by-step explanation:
Answer:
8.25
Step-by-step explanation:
i hope this helps
In circle F, the measure of ∠AFE is equal to 120° and the measure of arc BD is equal to 20°.
What is the measure of ∠C?
100°
40°
60°
50°
Answer:
40
Step-by-step explanation:
AFE=120 so arc AE is also 120
those 3 angles add up to 180 and 180-120-20=40
The measure of ∠C is 40°.
What is an angle measure?When two lines or rays intersect at a single point, an angle is created. The vertex is the term for the shared point. An angle measure in geometry is the length of the angle created by two rays or arms meeting at a common vertex.
Angle measure of central angle is equals to measure of intercepted arc.
External angle formed outside a circle,
= Half the difference of the major and minor arc =
Angle measure of AFE
= arc AE = 120°
Thus:
m∠C = 1/2(120 - 40)
m∠C = 40°
So, the angle measure of C is 40°
Therefore, 40° is the measure of ∠C.
To learn more about the angle measure;
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pls help and fast i need it done soon
Answer:
53
Step-by-step explanation:
I hope this helps. I hope its right.
5x-(x+3)=1/3(9x18)-5
Answer:
13
Step-by-step explanation:
Simplify both sides of the equation.
(Combine Like Terms)
Step 2: Add 3 to both sides.
4x−3+3=49+3
4x=52
Step 3: Divide both sides by 4.
Answer:
Exact Form: x ≈ − 1 2 , 1.04081022
Decimal Form: x ≈ − 0.5 , 1.04081022
Step-by-step explanation:
Solve for x by simplifying both sides of the equation, then isolating the variable.
Hurry!! Worth 10 points
Answer:
C, i think this is correct!
Which graph shows a line with an x-intercept of (-5, 0)?
Answer:
graph?
Step-by-step explanation:
Answer: you forgot to show the answer choices but
When you have a linear equation, the x-intercept is the point where the graph of the line crosses the x-axis.
Hope this helps :)
The forth term of an A. P. is 37 and the 6th term is 12 more than the forth term. Find the first term and the seventh terms.
Answer:
First term is 19
7th term =a+6d=127 is answer
Step-by-step explanation:
I hope it's helpful!
proportional relationships help pls
Answer:
Propotional Means corresponding in size, degree, or intensity. b : having the same or a constant ratio corresponding sides of similar triangles are proportional.
Solve 1/3b + 57 = 3
What is the constant on the
variable side? What is its
inverse? Do to both sides.
What is the coefficient?
Divide on both sides.
Answer: b=-18
Step-by-step explanation:
1/3b+57=3
Subtract 57
1/3b=-54
Divide by 1/3 (basically you’re dividing by 3)
p=-18
Find two consecutive integers whose sum is 45. List the numbers from smallest to largest separating them with a comma (6, 7).
Answer:
(22, 23)
Step-by-step explanation:
x + ( x + 1) = 45
2x + 1 = 45
2x = 45 - 1
2x = 44
x = 44 ÷ 2
x = 22
22, 23
Jorge is making a scale model of a dog house that will be 1/8 the size of the actual dog house. The actual dog house is 40 inches high. What will be the height of the scale model of the dog house?
Whoever answers this under 5 mins will get brainiest!!!!
Answer:
5 inches high
Step-by-step explanation:
Which expression describes the difference if 5x² + 2x is subtracted from 3x^2 – 4x?
Answer:
I think D
Step-by-step explanation:
But hopes it helps
How do I do this? I’m not really sure.
Answer:
Step-by-step explanation:
f(x) + g(x) = 3x^2 + 2x - 1 + x^2 - 3x + 1
f(x) + g(x) = 4x^2 - x
==================================
f(x) - g(x) = 3x^2 + 2x - 1 - x^2 + 3x - 1
f(x) - g(x) = 2x^2 + 5x - 2
Can someone plz help me with 4 a and b plz
yy-intercept is (0,6)(0,6)left parenthesis, 0, comma, 6, right parenthesis and slope is 333.
Answer:
y=333x+6
Step-by-step explanation:
y=mx+b
change m to the slope
and b to the y cept'
A group of 5 teachers bought 3 pens and 1 eraser each. Their total cost for all the materials was $12.89. If the eraser was $0.97, how much was each pen?
Variable:________________
Equation:________________
Solution:________________
Answer:
$0.536Step-by-step explanation:
Variable:
p for penEquation:
5(3p + 0.97) = 12.89Solution:
5(3p + 0.97) = 12.8915p + 4.85 = 12.8915p = 12.89 - 4.8515p = 8.04p = 8.04 / 15p = 0.536PLS HELP ME!!! How much pure alcohol must a nurse add to 10 cm3 of a 60% alcohol solution to strengthen it to a 90% solution?
Answer:
30cm3
Step-by-step explanation:
she already has: 60%:10
pure ones: 100%:x
need:90%:10+x
so u can get this eq:
6+x=9+0.9
0.1x=3
x=30
36 = 4x
Please help I’m behind in my class and could use help
Answer:
x=9
Step-by-step explanation:
Divide by 4 on both sides in order to isolate x and get the answer.
PLSSS HELLP!!!
5. My parents took me to Johns Incredible Pizza for my 16th birthday. The bill for just the food is $55.25. If video games cost $.25 each, how many games can I play for the total money spent to be exactly $100? *
.25x+100=55.25
55.25x+.25=100
55.25+.25x=100
100+55.25x=.25
k+a=500
3k+10a=3,600
find k and a using elimination plss helppp
Answer:
a=300 and k=200
Step-by-step explanation:
Multiply the first equation by -10,and multiply the second equation by 1.
−10(a+k=500)
1(10a+3k=3600)
Becomes:
−10a−10k=−5000
10a+3k=3600
Add these equations to eliminate a:
−7k=−1400
Then solve−7k=−1400for k:
−7k=−1400 (Divide both sides by -7)
[tex]\frac{-7k}{-7} =\frac{-1400}{-7}[/tex]
Now that we've found k let's plug it back in to solve for a.
Write down an original equation:
a+k=500
Substitute200forkina+k=500:
a+200=500
a+200+−200=500+−200(Add -200 to both sides)
a=300
Hope this helps :)
What is the solution of the system.. explain what it means in the solution
Answer:
The solution is (4,250)
Step-by-step explanation:
This means that when a member of either gym (A or B) signs up for a four-month membership, they pay the same amount - $250. Hope this helps :)
Convert this equation into the slope intercept form
4x - y = -5
Answer:
y = 4x + 5
Step-by-step explanation:
4x - y = -5
-4x -4x
-y = -4x -5
/-1 /-1 /-1
y = 4x + 5
Answer:
Y = -4x + 5
Step-by-step explanation:
-4x from both sides
-y = -4x -5
divide both side by -1
y = -4x + 5
brainliest?
What do the following two equations represent?
y - 2 = x + 20
y - 2 = -(x+20)
Answer: Perpendicular lines
Step-by-step explanation:
The first equation (y - 2 = x + 20) represents a line with a positive slope and a y-intercept of 22, while the second equation (y - 2 = -(x + 20)) represents a line with a negative slope and a y-intercept of -18.
The two equations, y - 2 = x + 20 and y - 2 = -(x + 20), represent linear equations in standard form. Let's break down each equation:
y - 2 = x + 20
This equation represents a linear relationship between x and y. It states that the value of y minus 2 is equal to the value of x plus 20. This equation can be rearranged to slope-intercept form (y = mx + b) by isolating y:
y = x + 20 + 2
y = x + 22
The equation y = x + 22 represents a line with a slope of 1 and a y-intercept of 22.
y - 2 = -(x + 20)
Similarly, this equation represents a linear relationship between x and y. It states that the value of y minus 2 is equal to the negative of the value of x plus 20. This equation can also be rearranged to slope-intercept form by isolating y:
y = -(x + 20) + 2
y = -x - 20 + 2
y = -x - 18
The equation y = -x - 18 represents a line with a slope of -1 and a y-intercept of -18.
In summary, the first equation (y - 2 = x + 20) represents a line with a positive slope and a y-intercept of 22, while the second equation (y - 2 = -(x + 20)) represents a line with a negative slope and a y-intercept of -18.
To know more about positive slope click here :
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answers for the 2 boxes please :)
Answer:
x=-11 y=-4
Step-by-step explanation:
4x−6y=−20;−2x+4y=6
once you have this, try and find any number. i find trial and error easy if you can find the answer
What number is 75% of 300?
A. 36
B. 22.5
C. 2250
D. 225
225
What is 75 percent of 300.? = 225.