Answer: 15b+4=25 & 15b=21
Step-by-step explanation:0.6+15b+4=25.6
0.6+4= 4.6 , 4.6+15b=25.6 Subtract from both sides 25.6-4.6= 21 4.6-4.6=0 bring down 15b Now do 21÷15b= 1.4 . So now we know b represent 1.4. 15b+4=25 Subtract 4 from both sides 25-4=21 4-4=0 There's nothing left on that side but 15b so bring down 15b in order to get rid of your variable divide it 21÷15= 1.4 On this one b also represents 1.4 . 15b=21 this equation do not have an number so just divide 21 by 15 to get rid of your variable which equals 1.4 In this equation b= 1.4 So these to equations are equivalent which is another word for equal.
The equations which are equivalent to 0.6 + 15b + 4 = 25.6.
15b + 4 = 253(0.6 + 15b + 4) = 76.815b = 21what is equation?An equation is a mathematical expression that contains an equals symbol. Equations often contain algebra. Algebra is used in maths when you do not know the exact number in a calculation.
Given:
0.6 + 15b + 4 = 25.6.
On solving it further
15b + 4= 25.6-0.6
15b+4=25
15b= 25-4
15b= 21
3(0.6 + 15b + 4) = 76.8
On solving
0.6 + 15b + 4 = 76.8/3
0.6 + 15b + 4 = 25.6
So, the equivalent equations are:
15b + 4 = 253(0.6 + 15b + 4) = 76.815b = 21Learn more about equation here:
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jsjsjsjjsjs i need help with hw once again. first person to answer gets brainliest ;)
Answer:
7 degrees Fahrenheit
Step-by-step explanation:
-3 + 11 = 7
It's the same as
11-3= 7
76, 84, 93, 67, 82, 87, and 76. what is the mean
Answer:
81
Step-by-step explanation:
First, add all the numbers:
[tex]76+84+93+67+82+87+76=565[/tex]
Second, divide by the amount of numbers(count the amount of numbers that are there.):
[tex]\frac{565}{7} = 80.714285.....[/tex]
Third, round your answer to the nearest whole number:
[tex]80.714285...(estimated)= 81[/tex]
Answer:
The mean is 84.7777777777778
Step-by-step explanation:
Given the function f(x) = 3 (x - 9) + 6 which of the following represents f-1 (x)?
Answer:
[tex]f^{-1}[/tex](x) = [tex]\frac{1}{3}[/tex] x + 7
Step-by-step explanation:
let y = f(x) and rearrange making x the subject, that is
y = 3(x - 9) + 6 ← distribute and simplify right side
y = 3x - 27 + 6 = 3x - 21 ( add 21 to both sides )
y + 21 = 3x ( divide all terms by 3 )
[tex]\frac{1}{3}[/tex] y + 7 = x
Change y back into terms of x with x = [tex]f^{-1}[/tex](x) , thus
[tex]f^{-1}[/tex](x) = [tex]\frac{1}{3}[/tex] x + 7
I've been staring at this for 15mins plz help
Answer:
answer is C because it is
Help ASAP!!!
Convert 2 gallons into pints (1 gallon=4 quarts, and 1 quart=2 pints).
2 Gallons = 16 Pints
Brooke and Lamont ran a half marathon, Brooke finished in 1 hour 45
minutes. Lamont finished in 115 minutes. Who had the faster time?
Answer: brooke had the faster time
Step-by-step explanation:
This is because if you convert 1 hour 45 into minutes it would be stated as 105 minutes and if you do 115 - 105 you are left with 10 which the bigger number is the fastest so it would be brooke the reason I subtracted was to see if they were not similar. Hope this helps :)
Brooke was the fastest because 115 minutes is very close to 2 hours. Therefore Lamont took longer.
What is the slope of a line that contains the points (5, -3) and (7, 3)? *
Slope formula: y2-y1/x-x1
We can use the given points to solve.
3-(-3)/7-5
6/2
3
Best of Luck!
Find the value of x will mark BRAINLYList
Answer:
25 degrees
Step-by-step explanation:
56+99=155
180-155=25
25 degrees
If a leaf fell 140 meters in 4 minutes how many meters did it travel per minute?
Answer:
The leaf travels 35 meters per minute
Step-by-step explanation:
Given:
Distance = 140 meters
Time = 4 minutes
Speed = distance / time
Speed in meter per minute
Distance in meter
Time in minutes
Speed = distance / time
= 140 meters / 4 minutes
= 35 meters per minutes
Therefore,
The leaf travels 35 meters per minute
When might you need to measure an object’s radius?
Answer:
Finding the circumference?
A Tourist Information Center is between a Bus Station and a Train Station. When mapped on a grid, the Train Station is located at (13,15) and the Bus Station is located at (5,1). The Tourist Information Center is located at point
x=___
y=___
Answer:
X = 9 and Y = 8
Step-by-step explanation:
We are to find the midpoint of the coordinates (13,15) and (5,1).
Using the midpoint formula;
M(X, Y) = [(x1+x2)/2, (y1+y2)/2]
X = (x1+x2)/2
Y = (y1+y2)/2
From the coordinates, x1 = 13, y1 = 15, x2 = 5 and y2 = 1
X = 13+5/2
X = 18/2
X = 9
Similarly;
Y = 15+1/2
Y = 16/2
Y = 8
Hence The Tourist Information Center is located at point X = 9 and Y = 8
Which of the following identifies when food is most susceptible to bacteria and microorganism growth?
fall
winter
spring
summer
summer the food is most susceptible to bacteria and microorganism growth because of heat
What is Microbiology?Microbiology is the scientific study of microorganisms, those being unicellular, multicellular, or acellular.
Susceptibility is a term used when microbe such as bacteria and fungi are unable to grow in the presence of one or more antimicrobial drugs.
Susceptibility testing is performed on bacteria or fungi causing an individual's infection after they have been recovered in a culture of the specimen.
In summer the food is most susceptible to bacteria and microorganism growth because of heat where as in the winter and fall the bacteria wont grow easily.
Hence, summer the food is most susceptible to bacteria and microorganism growth because of heat
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Johnny's rare book collection contains 40 books he donates 15% of his books to the National Library sells 1/4 of his books to a rare dealer and sell for books on Amazon how many books were made in Johnny's book collection
Answer:
20 books
Step-by-step explanation:
Fractions and all that.
2. If the bill was $138, how far were you towed? Explain.
Answer:
It depends on how long the measurement is for each amount of money for example every 5 miles pay $12 so it would be which would be 11$.5 and the equation would be $12/5mi and if he had to pay $138 then it shows that he went 11.5 mi
Step-by-step explanation:
How many solutions does this system have? 2x−3y+z=5 2x−3y+z=−2 −4x+6y−2z=10 Explain your answer in terms of intersecting planes.
Answer:
5 because once you evaluate your functions and simplify your equations you get all 5 solutions.
Step-by-step explanation:
PLZ HELP this doesnt make sense
Answer:
No.
If two rectangles are congruent, it means they are the exact same shape and size.
I have uploaded an image with this answer. In the image, you can see two rectangles with the same perimeter. However, they are not congruent because they are not of the same size (even though they are of the same shape - a rectangle).
Hence, two rectangles may not be congruent if they have the same perimeter.
Under a dilation, a square with side lengths 14 meters is transformed to a square with side lengths 2 meters. What is the scale factor of the dilation?
Answer:
1/7
Step-by-step explanation:
I got it right
It takes 1 minute to bake 7 cookies. How many
cookies could you bake in 2 minutes? Assume the
relationship is directly proportional.
cookies
Answer
Answer:
Step-by-step explanation:
so the problem is 7 cookies in 1 minutes which is 7 x1 but if we want to know how many we have in 2 minutes we would have to multiply by 2 not 1. so we do 7x2 which is 14. 14 cookies in 2 minutes
Explain how you get the answer to 7|8-3h|=21h-49
Awnser-H=5/2
Explantion- Absolute value equalitiy entered
7|-3h+8| = 21h-49 Clear the absolute-value bars by splitting the equation into its two cases, one for the Positive case and the other for the Negative case.
The Absolute Value term is 7|-3h+8|
For the Negative case we'll use -7(-3h+8)
For the Positive case we'll use 7(-3h+8)
-7(-3h+8) = 21h-49
Multiply
21h-56 = 21h-49
Rearrange and Add up
0h = 7
False, No solution for the Negative Case 7(-3h+8) = 21h-49
Multiply
-21h+56 = 21h-49
Rearrange and Add up
-42h = -105
Divide both sides by 42
-h = -(5/2)
Multiply both sides by (-1)
h = (5/2)
Which is the solution for the Positive Case When an absolute value equation has just one solution, that solution has to be checked:
The equality is 7|-3h+8| = 21h-49
The solution is h = 5/2
We check the solution by plugging it for h
7|-3(5/2)+8| = 21(5/2)-49
The left hand side is equal to (7/2)
The right hand side is equal to (7/2)
The two sides are equal!
Solution checks!
h=5/2
How to put 634 in scientific form
Answer:
6.34 × 10²
Step-by-step explanation:
Calculating scientific notation for a positive integer is simple, as it always follows this notation: a x 10b.
Step 1
To find a, take the number and move a decimal place to the right one position.
Original Number: 634
New Number: 6.34
Step 2
Now, to find b, count how many places to the right of the decimal.
New Number: 6 . 3 4
Decimal Count: 1 2
There are 2 places to the right of the decimal place.
Step 3
Building upon what we know above, we can now reconstruct the number into scientific notation.
Remember, the notation is: a x 10b
a = 6.34
b = 2
Now the whole thing:
6.34 x 10²
Step 4
Check your work:
10² = 100 x 6.34 = 634
Answer:
6.34 x 10^2
Step-by-step explanation:
Move the decimal place to the left 2 positions
Which of the following is a characteristic of Euclidean geometry?
A. No lines are straight.
B. The sum of the measures of the angles in a triangle is greater than 180 degrees.
C. The parallel postulate is true.
D. The sum of the measures of the angles in a triangle is less than 180 degrees.
Answer:
b
Step-by-step explanation:
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
Calculate the area of a circle with radius 1.6m
Answer:
A≈8.04m² is the answer
Alexis bakes 90 identical pizzas. Each pizza is cut either into 8 small slices or 6 large slices. There are 5 small slices for for every 3 large slices. How many of the 90 pizzas are cut into small slices?
Answer:
50
Step-by-step explanation:
Let x represent the number of pizzas cut into small slices. Then the ratio of small to large slices is ...
[tex]\dfrac{8x}{6(90-x)}=\dfrac{5}{3}\\\\8x=10(90-x)\quad\text{multiply by $6(90-x)$}\\\\18x=900\quad\text{add $10x$}\\\\x=50\quad\text{divide by 18}[/tex]
50 of the 90 pizzas were cut into small slices.
_____
Check
The 50 pizzas cut into 8 small slices each results in 400 small slices. The 40 pizzas cut into 6 large slices each results in 240 large slices. The ratio of small slices to large slices is 400 : 240 = 5 : 3.
BRAINLIEST WILL BE MARKED
Another name for the domain is:
output
input
dependent variable
relationship
Answer:
B. input
Step-by-step explanation:
m<1 = 4x + 15, and m<2 = 6x-5, what is m<1
Answer:
rvg g rtb rg gt ggw
Step-by-step explanation:
g wgrgr wrgf r
Simplify (2/3)^1 Show your work!
Having 1 as an exponent does nothing to the original number.
2/3^1 = 2/3
Best of Luck!
Answer:
[tex]\frac{2}{3}[/tex]
Step-by-step explanation:
Anything to the power of 1 is itself.
---------------------------------------------------
If a number is to the power of 2, it multiplies itself and there are two 8 terms.
[tex]8^2=8*8[/tex]
Thus, if a number is to the power of 1, it is just by itself.
[tex]8^1=8[/tex]
Please help with Algebra
Answer:
C) 6
Step-by-step explanation:
I converted the equation into slope-intercept form and then identified the y-intercept.
[tex]4x+2y=12\\\\4x-4x+2y=12-4x\\\\2y=12-4x\\\\\frac{2y=12-4x}{2}\\\\ y=6-2x\\\\y=-2x+6\\\\y=-2x+\boxed{6}[/tex]
C should be the correct answer.
Hope this helps.
Answer: 6
Step-by-step explanation: The y-intercept is a point where a line
crosses the y-axis and all y-intercepts have an x-coordinate of zero.
So to find the y-intercept of this line, we can plug a 0 in for x.
So we have 4(0) + 2y = 12.
So 2y = 12 which means that y = 6.
So the y-intercept of this line is 6.
Find the equation of the line. Use exact numbers.
Answer:
[see below]
Step-by-step explanation:
Using two points on the line:
(0,3) (2,0)
Find the slope of the line:
[tex]m=\frac{rise}{run}=\frac{0-3}{2-0}=\frac{-3}{2}=-\frac{3}{2}[/tex]
The slope of the line is [tex]-\frac{3}{2}[/tex].
The y-intercept is (0,3).
The line equation should be: [tex]y=-\frac{3}{2}x+3[/tex].
Hope this helps.
Answer:
[tex]y=-\frac{3}{2}x+3[/tex]
Step-by-step explanation:
We can find an equation for the line by using the slope of the line and the y-intercept.
We can see that the y-intercept of of the line is 3.
To find the slope of the line, we can use the slope formula. The slope formula is:
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
where (x₁, y₁) and (x₂, y₂) are points on the line. To find the slope of the line, I will use the x-intercept, which is (2, 0), for (x₂, y₂) and y-intercept, which is (0, 3), for (x₁, y₁).
[tex]m=\frac{0-3}{2-0}=\frac{-3}{2}=-\frac{3}{2}[/tex]
So now we know the y-intercept and the slope, so lets plug it into the slope-intercept form equation. This gives us:
[tex]y=-\frac{3}{2}x+3[/tex]
So the equation of the line would be [tex]y=-\frac{3}{2}x+3[/tex].
I hope you find my answer helpful.
Plz help, I will give you brainlest! Thx!
Answer:
(0,-10)
Step-by-step explanation:
Answer:
your answer Is 3
Step-by-step explanation:
You do y2-y1 and x2-x1
that gives you -2-22/-4-4 which leaves you with
-24/-8
and that’s 3
Help please! sssssssssssssss
Answer:
UT=17 because both UT and RU are the same length, same with QU and US
Step-by-step explanation:
