Answers
Step-by-step explanation:
-2 -0.5b + 12 = 0.3b + 6.2
-2 + 12 - 6.2 = 0.3b + 0.5b
3.8 = 0.8b
b = 3.8/0.8
= 4.75
Answer:
4.75
Step-by-step explanation:
-2-0.5b + 12 = 0.3b + 6.2
Move all terms to the left:
-2-0.5b + 12 - (0.3b + 6.2) = 0
Add all the numbers together, and all the variables
-0.5b - (0.3b + 6.2) + 10 = 0
Get rid of parentheses
-0.5b - 0.3b - 6.2 + 10 = 0
Add all the numbers together, and all the variables
-0.8b + 3.8 = 0
Move all terms containing b to the left, all other terms to the right
-0.8b = -3.8
b= -3.8/-0.8
b= 4+0.6/0.8
b= 4.75
Related Questions
Which equation can be used to find the measure of angle LJK?
O sin(x) = 10/15
O sin(x) = 15/10
O cos(x) = 10/15
O cos(x)= 15/10
Answers
Answer:
cos(x)=10/15
Step-by-step explanation:
As cosine is Base/Hypotenues
cos(x)=JL/JK
= 10/15
MARK ME AS BRAINLISTThe equation used to find the measure of angle LJK is option C. cos(x) = 10/15.
What are Trigonometric Functions?Trigonometric functions are the functions which are represented as the ratio of the sides of a right angled triangle.
The three main trigonometric functions are sine, cosine and tangent function.
Sine function of an angle is the ratio of the opposite side to the hypotenuse of the triangle.
Cosine function of an angle is the ratio of the adjacent side to the hypotenuse of the triangle.
Here,
Hypotenuse of the triangle = KJ = 15 inches
LJ = 10 inches is the adjacent side with respect to the angle x.
We can use cosine function here.
cos (x) = LJ / KJ = 10/15
Hence the equation used is cos(x) = 10/15.
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How many ways can Caroline choose 6 courses of any type?
Answers
Answer:
6 times she can choose courses
Write in decimal form:
7 × 100 +
6 × 10 +
5 × 1 +
0 × (1/10) +
3 × (1/100) +
7 × (1/1000)
Answers
Answer:
765.037
Step-by-step explanation:
7 x 100 = 700
6 x 10 = 60
5 x 1 = 5
0 x (1/10) = 0
3 x (1/100) = 0.03
7 x (1/1000) = 0.007
Add them all up and you'll get 765.037.
(20 POINTS AND BRAINLIEST) The rectangles below have the same perimeter
What is the area of the orange rectangle?
Answers
Answer:
Well it is 16
Step-by-step explanation:
the rectangle has 2 of the same sides for each side, so 3x2+5x2, a square has all sides equal to each other, so 4x4
So Now we do the easy part|
The rectangle that is grey:
3x2 = 6
5x2 = 10
6+10 =16
The orange square:
4x4 = 16
4+4=8
4+4=8
8+8=16
Therefore both are 16, meaning 16 must be the perimeter for both!
A town has a population of 90,200 and shrinks at a rate of 2% every year. Which equation represents the town’s population after 7 years
Answers
Answer: f(x) = 90,200 (1-.002)^7
Step-by-step explanation:
f(x) = a (1 - r)^t
a - initial amountr - ratet - timef(x) = 90,200 (1-.02)^7
The equation f(7) = 90,200 (1 - 0.02)⁷ represents the town’s population after 7 years.
What is an exponential function?An exponential function is defined as a function whose value is a constant raised to the power of an argument is called an exponential function.
A town has a population of 90,200 and shrinks at a rate of 2% every year.
As we know the exponential equation for the population as
f(n) = a (1 - r)ⁿ
Where a is the initial population
r is rate
n is years
As per the question, we have
a = 90,200, r = 2/100 = 0.02, and t = 7 years
Substitute the known values in the above equation, and we get
f(7) = 90,200 (1 - 0.02)⁷
This equation represents the town’s population after 7 years.
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when 1/6 is written as a repeating decimal, which decimal is repeating
Answers
Answer:
1.66666... the number 6 is repeating
Answer:
1. ¯6 or 1.66666.... and 6 is the repeating number
Work out the size of angle y
Answers
Answer:
y = 108°
Step-by-step explanation:
3x - 12 and 2x + 16 are corresponding angles and are congruent , then
3x - 12 = 2x + 16 ( subtract 2x from both sides )
x - 12 = 16 ( add 12 to both sides )
x = 28
then
3x - 12 = 3(28) - 12 = 84 - 12 = 72°
y and 3x - 12 are adjacent angles and sum to 180° , that is
y + 72° = 180° ( subtract 72° from both sides )
y = 108°
Step-by-step explanation:
There you go I hope this helps
-
Try it! 2
A test weight is dropped from the top of a fire department
training tower onto a net three feet off the ground. Use - 16t2 for the change
in height per second.?
a.) Write an equation to determine the time
it takes for the test weight to drop on the
net.
67 ft
b.) How long does it take before the test
weight is caught by the net? Explain.
Answers
Using quadratic function concepts, it is found that:
a) The equation is: 16t² - 64 = 0.
b) It takes 4 seconds before the weight is caught by the net.
What is the quadratic equation for a projectile's height?It is given by:
h(t) = -16t^2 + v(0)t + h(0).
In which:
v(0) is the initial velocity.h(0) is the initial height.Item a:
In this problem, the object starts from rest at a height of 67 ft, hence v(0) = 0 and h(0) = 67.
Then, the equation for the height is given by:
h(t) = -16t^2 + v(0)t + h(0)
h(t) = -16t^2 + 67
It hits the net when h(t) = 3, hence:
3 = -16t^2 + 67
16t² - 64 = 0.
Item b:
16t² = 64
[tex]t = \pm \sqrt{4}[/tex]
t = 4, as time is positive.
It takes 4 seconds before the weight is caught by the net.
More can be learned about quadratic function concepts at https://brainly.com/question/24737967
can someone help with this
Answers
Answer:
2.4
Step-by-step explanation:
6 / 2 1/2 = 2.4
Hope This Helps
answers for
2(3x-5)=52
Answers
Answer:
x = 31/3 or 10 1/3.
Step-by-step explanation:
2(3x-5)=52
2*3x + 2*-5 = 52
6x - 10 = 52
6x - 10 + 10 = 52 + 10
6x = 62
x = 62/6 = 31/3
ms.amni and mr.blake each ordered supplies for their classroom. the cost of the supplies are pencil cases equals $3 box of crayons equals $4 pack of folders equals $2 .Ms.Amani ordered 7 pencil cases and 9 pack of folders and Mr Blake ordered 9 boxes of crayons What is the difference In the cost off the supplies Ms.Amani and the cost of surprises mr Blake ordered. Show work
Answers
Answer:
3
Step-by-step explanation:
do 3×7+9×2=39 (Ms. Amani)
Next do 9×4=36 (Mr.Blake)
39-36=3
Hope this helps!
Show work please I’ve been really struggling lately and i am SWAMPED with work
Answers
Answer:
See below
Step-by-step explanation:
m = k/m sub in the values given
-4 = k / 17
k = -68
so m = -68/n NOTE: this can also be written as n = -68/m
Answer:
Step-by-step explanation:
Nikki, they wrote the problem in a format that is general
y = k/ x for the given variables m and n then
m = k / n where k is some constant ( konstant)
plug in the given numbers for m and n
-4 =k / 17
solve for k
-4 * 17 = k
-68 = k
now we have a better formula
m = -68 / n ( this is your answer a )
now plug in -136 for m
-136 = -68 / n
solve for n
n = -68 / -136
n = 1/2 ( this is your answer b)
Hope that helps, can you see how I did that?
Rewrite the equation below so that it does not have fractions 3-2/3x=3/4
Answers
Answer: 3- 0.67x = 0.75
Step-by-step explanation: Convert fractions to decimals
The total cost of 5 kg orange and 3 kg apple is Rs.1100. If the rate of orange decreases by 20% and the rate of apple increases by 5%, the total cost of 3 kg orange and 3 kg apple will be Rs. 870. By what percent the cost of 1 kg apple is less or more than 1 kg orange? Find it.
Answers
The percentage that the cost of 1 kg apple is more than 1 kg of orange is 100%.
What are the linear equations that represent the question?
5o + 3a = 1100 equation 1
2.4o + 3.15a = 870 equation 2
Where:
o = cost of 1kg of orange a = cost of 1kg of apple What is the cost of 1kg of orange?Multiply equation 1 by 1.05
5.25o + 3.05a = 1155 equation 3
Subtract equation 3 from equation 2
285 = 2.85a
a = $100
What is the cost of one kg of apple?Substitute for o in equation 1
5(100) + 3a = 1100
500 + 3a = 1100
3a = 1100 - 500
3a = 600
a = $200
By what percent the cost of 1 kg apple is less or more than 1 kg orange?($200 / 100) - 1 = 100%
To learn more about simultaneous equations, please check: https://brainly.com/question/25875552
What is the radius of a circle whose equation is (x + 5)² + (y - 3)² = 4²?
O 2 units
O 4 units
O 8 units
O 16 units
Answers
Answer:
PLEASE MARK AS BRAINLIST
we know thatthe equation of the circle is of the formwhere(h,k) is the center of the circler is the radius of the circlein this problem we havesothe center is the point the radius is thereforethe answer isThe radius of the circle is equal to 4units
The required radius of a circle whose equation is (x + 5)² + (y - 3)² = 4² is 4. Option B is correct.
What is a circle?The circle is the locus of a point whose distance from a fixed point is constant i.e center (h, k). The equation of the circle is given by
(x - h)² + (y - k)² = r²
where h, k is the coordinate of the center of the circle on a coordinate plane and r is the radius of the circle.
The equation of the circle is given by:
(x + 5)² + (y - 3)² = 4²
Comparing this equation with the standard form of the equation of a circle:
(x - a)² + (y - b)² = r²
We can see that the center of the circle is at the point (-5, 3), and the radius of the circle is 4 units (which is the same as the constant on the right-hand side of the equation).
Therefore, the radius of the circle is 4 units.
So the answer is (B) 4 units.
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Write the following statements in algebraic form.
A. A number decreased by 3 and then doubled.
B. A number is tripled and then increased by 8.
C. Area of rectangle is the product of its length and breadth.
D. Product of two numbers divided by 3.
E. x is halved and increased by 11
Answers
= 2 ( n-3 )
B. A number is tripled and then increased by 8.= 3 ( x+8 )
C. Area of rectangle is the product of its length and breadth.x= l×b
D. Product of two numbers divided by 3.= x/3
E. x is halved and increased by 11= x/2 + 11
a= 2 ( n-3 )
b= 3 ( x+8 )
c= x= l×b
d= x/3
e= x/2 + 11
in right triangle ,XYZ, the length of the hypotenuse YZ=85 and tanZ=3/4. what are the lengths in inches of the legs XY and XZ
Answers
Answer:
UWU
Step-by-step explanation:
THIS IS A GOOD ASNWER YOZ NEED IT RN SO GOOD LUCK
the lengths in inches of the legs XY and XZ are, 5.53 & 7.36 .
What is Pythagorean theorem?Pythagorean theorem, the well-known geometric theorem that the sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse (the side opposite the right angle)—or, in familiar algebraic notation, a2 + b2 = c2.
here, we have,
in right triangle ,XYZ, the length of the hypotenuse YZ=85 and tanZ=3/4.
so, we get,
let, the sides= 3x & 4x
now, by Pythagorean theorem,
9x^2 + 16x^2 = 85
x=1.84
hence, the lengths in inches of the legs XY and XZ are, 5.53 & 7.36 .
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Find the perimeter of the parallelogram please.
Answers
Answer:
39.6
Step-by-step explanation:
The perimeter is simple, just add the sides up which is 19.2+20.4 which is the answer.
Answer: 39.6
Step-by-step explanation: 2 (Length + width)
2( 10.2 + 9.6)
Two prisms are similar and their ratio of similarity is 4:9.
Find the area of a base of the larger prism if the area of a base of the smaller prism is 47 square units.
Round to the nearest hundredth.
Pls show work!<3
Answers
Answer:
9:4,4:9,7:4,4:7,473
Step-by-step explanation:
4 times 9
9 times 4
7 times 4
4 times 7
473
step right up for a new brainiest fair answer the question you get right you win the glorious brainiest
Answers
Answer:
Mean → 9
Median → 7
Mode → 4
Step-by-step explanation:
For mean ↓
(9+4+17+4+7+8+14) ÷ 7 = 9
For median ↓
G U E S S E D
For mode ↓
Mode is 4 because it is shown twice in the data.
2 x 2 = 4
Hope this helped! :^)
⭐Brainliest will be appreciated!⭐
✉️Message me if you have any more questions!✉️
- ✨7272033Alt✨
Submitted on 4/14/2022 at 6:31 PM
(To avoid plagarism, by users whom decide to copy.)
Percent of change 125 is increased to 200
Answers
Answer:
60
Step-by-Step Explanation:
(200-125):125*100 =
(200:125-1)*100 =
160-100 = 60
Now we have: What is the percentage increase/decrease from 125 to 200 = 60
Answer:
+63%
Step-by-step explanation:
We need to divide to solve this :)
125/200 = 0.63 x 100 = 63%
Have an amazing day!!
Please rate and mark brainliest!!
In (circle)A, m∠BAD = 110. Find mDE.
Answers
Answer: 70
Step-by-step explanation: BAD is 110 degrees and BDE is 180 so do 180 minus 110 and gets you 70 which is DE
Reason:
Central angle BAD is 110 degrees.
This makes angle DAE to be 180-110 = 70 degrees since the two angles are supplementary. They combine to a 180 degree straight angle.
From there, minor arc DE is also 70 degrees. This is because the central angle subtending the arc will be the same measure.
find the difference of squares
x^2 -225
81- 4y^2
9k^4 - 25
Answers
Answer:
1.(x+15)(x−15)
2.(9+2y)(9−2y)
3.(3k^2+5)(3k^2−5)
Step-by-step explanation:
hope this helps
1cup is equivalent to ?
Answers
Answer:
8 ounces
If you need more I can add
(I searched it up)
LOOK AT THE PICTUREE ILL TRY GIVING BRAINLYEST
Answers
Answer: 1/2
Step-by-step explanation: rise/ run
A city has 28 radio stations, including 12 college radio stations. What is the probability that a randomly chosen radio station in this city is a college radio station? Write your answer as a fraction or whole number.
Answers
Step-by-step explanation:
Given
Number of Radio Stations=28
Number of College Radio Stations=12
[tex]required \: probabilty = \frac{number \: of \: college \: radio \: stations}{total \: number \: of \: radio \: stations} [/tex]
Probability=12/28=3/7
Find the interest on $4000 at 3% for 4 months
Answers
Answer:
the formula for finding interest is I=p×r×t÷100
so the answer will be l=4000×3×4÷100which is equal to480.Therefore the interest is $480
Please help me with this!
Answers
Answer:
Step-by-step explan
Find the value of x please answer ASAP!!!!
Answers
Answer:
24
Step-by-step explanation:
All you gotta do is 30(12)=15(x). So 360=15x, then divide from there to only get x
A shop owner has only a 1 kg, 2kg, 4kg, and 8 kg weight for the balancing scale. Which of the following bags of flour cannot be weighted on this balance scale?
Answers
Answer:
see below
Step-by-step explanation:
Need the choices, 1- 15 can be weighed but 16 cannot be weighed