Answer:
The answer to the question is -1.32
Step-by-step explanation:
The first step will be to write out the equation that we are working with:
This equation is
[tex]0.2b + 0.6a = 12[/tex]
The next step is to write out the values of the figures that we are substituting:
[tex]a = -1.2 b=-3[/tex]
Substitution in mathematics can best be understood as "something being used in place of another thing". This means that wherever the first variable appears in an equation, the substituting values will replace it and multiply the number it is attached to.
In this case, we will replace the 'b' and the 'a' with the - 1.2 and - 3 respectively.
[tex]0.2(-3) + 0.6(-1.2) = -1.32[/tex]
Answer:
The answer is A. (15,15)
Step-by-step explanation:
edge21
Can someone please help me with b c and d?
Answer:
DO NOT CARE
Step-by-step explanation:
solve the inverse for k
2(k-12)-5(k+2)<-9k+4k
answer this question
Answer:
(0,8)
Step-by-step explanation:
a sphere has a volume of 905cm. what is the radius of the sphere rounded to the nearest whole number ?
Answer:
r = 6
Step-by-step explanation:
The value of radius of the sphere rounded to the nearest whole number is,
⇒ r = 6 cm
We have to given that,
Volume of a sphere = 905 cm
Since, We know that,
Volume of sphere = 4/3 (πr³)
Where, 'r' is radius of sphere.
Now, Substitute the given value, we get;
⇒ 905 = 4/3 (πr³)
⇒ 905 × 3 = 4 × 3.14 × r³
⇒ 2,715 = 12.56 × r³
⇒ r³ = 216.16
⇒ r = ∛216.16
⇒ r = 6 cm
Thus, The value of radius of the sphere rounded to the nearest whole number is,
⇒ r = 6 cm
To learn more about the volume visit:
brainly.com/question/24372707
#SPJ2
the value of y is proportional to x when x=3 then y=15 which equation represents the relationship between x and y?
Answer:
explaination
Step-by-step explanation:
# carry on learning
The solution is, A. y = 5x, the equation represents the relationship between x and y.
What is equation?An equation can be stated as a mathematical statement that is made up of two expressions connected by an equal sign. In its normal form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal.
here, we have,
Direct proportion equation:
y = kx, where k is the coefficient of proportionality
We have:
x = 3 and y = 15
Using the equation to find the value of k:
15 = 3k
k = 15/3
k = 5
The equation of the line:
y = 5x
Correct choice is A
Hence, The solution is, A. y = 5x, the equation represents the relationship between x and y.
To learn more on equation click:
brainly.com/question/24169758
#SPJ6
Algebra edg plz help!
Answer:
12
Step-by-step explanation:
Least common multiple of the numbers 2, 3, and 4 is 12
Answer:
3
Step-by-step explanation:
For them to at least be a whole number, it’s 3
Four biased coins, A, B, C and D are thrown.
The probability that each coin will land on Heads is shown in the table.
Coin Probability a) (i) Which coin is least likely to land on Heads?
А
0.66
(1)
0.066
(ii) Which coin is most likely to land on Heads?
С
(1)
60%
b) What is the probability that D will land on Tails?
(1)
B
D
Coin B is going to be thrown 4000 times.
c) Work out an estimate for the number of times
coin B will land on Heads.
(2)
Total marks: 5
Answer:
Please check explanations for answer
Step-by-step explanation:
Firstly, we need all the probability in the same decimal form
P(A) = 0.66
P(B) = 0.067
P(C) = 2/3 = 0.67
P(D) = 60/100 = 0.6
a) The least likely is the smallest value of decimal
This is 0.067 which is for coin B
most likely is the highest probability; this is C which is 2/3
b. Probability that D will land on tail is 1 - probability that it lands on head
= 1 - 0.6 = 0.4
c. Mathematically that is the product of the probability and the number of times it was thrown
That will be;
0.066 * 4000
= 264 times
What is the answer???
Bill bought a $300 watch which was on sale for $280. What was the percent discount?
I am a little confused on what you meant, and I'm not sure if its correct. I think he saved $20
Angles 1 and 2 are supplementary.
• The measure of angle 1 is (2x - 3) ◦
• The measure of angle 2 is (-5x + 423) ◦
What is the measure of angle 2?
Answer:
1 = 157°
2 = 23°
Step-by-step explanation:
because the angles are supplementary, their angles will add up to 180°set up the equation (2x-3)+(-5x+423)=180combine like terms to get -3x+420=180subtract 420 from 180 to get -3x=-240divide by three and get x=80now plug in 80 for x in both equationsAfter Batman brought the Joker to justice, the crime rate in Arkham City decreased by 12\%12%12, percent. Previously, the crime rate was ccc incidents per 100010001000 people.
Which of the following expressions could represent the crime rate in Arkham City after Batman brought the Joker to justice?
Answer:
.88c 22/25c
Step-by-step explanation:
yup
Answer:
.88c 22/25c
Step-by-step explanation:
HELPPP PLZ :(( I WILL MARK BRAINLIEST PLZZZ
Answer:
y = -3/2x + 2
The line starts on (0,2) and then it run 3 spaces down and 2 spaces to the right. Hope this helps, thank you !!
5. Write each comparison as a rate.
a. There was 15 mm of rain over 3 days.
b. Four chocolate bars were on sale for
$2.20.
c. Indu saves $14.00 every week.
d. Philip's height changed by 12 cm over
4 months
Answer:
5, 0.55, 2.00, 3 cm.
Step-by-step explanation:
If you're asking about the unit rates, then..
a. For 1 day, there is 5 mm of rain. 15 / 3 = 5
b. One chocolate bar costs $0.55. 2.20 / 4 = $0.55
c. $14.00 / 7 = 2.00 Indu saves $2.00 for one day.
d. 12 / 4 = 3 cm. For one month, philip grew 3 cm.
I hope this helped :)
Find x
25
7
х
I need help
Answer:
24 = x
Step-by-step explanation:
You use Pythagorean theorem. Since the normal equation is [tex]a^{2} + b^{2} =c^{2}[/tex], you already have the [tex]c^{2}[/tex] and another side which can be [tex]a^{2}[/tex] or [tex]b^{2}[/tex].
Because you have the hypotenuse and a side , your equation looks like this now: [tex]7^{2} +b^{2} = 25^{2}[/tex]
and when you solve for be you just subtract [tex]25^{2} -7^{2}[/tex] to get 24.
13 = -4x +9 solve equation.
Answer:
-1x or -x
Step-by-step explanation:
4 divided by -4
which best describes two figures that are similar?
Answer:
B
Step-by-step explanation:
100 POINTS PLEASE HELP ASAP!!!!!!!!!!!
Answer:
its the first one
Step-by-step explanation:
⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿
⣿⣿⣿⣿⠟⠩⠶⣾⣿⡿⢯⣍⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿
⣿⣿⣿⠏⠀⠀⠈⠉⠀⣠⢤⠈⠋⠀⢠⣄⠉⢻⣿⣿⣿⣿⠃⠈⢿⣿⣿⣿⣿⣿
⣿⡟⠁⠀⠀⠀⣹⣦⣀⣙⣈⣀⢶⣤⣈⣁⣠⣾⣿⣿⣿⡿⠀⠀⠼⢿⣿⣿⣿⣿
⡏⠀⠀⠠⣤⠦⣭⣙⣛⠛⠋⠁⠀⠙⠛⢉⣻⣿⣿⣿⠋⠁⠀⠀⠀⠀⠀⠀⠈⣿
⡇⠀⠀⠀⠛⠮⣽⣒⣻⣭⢽⣿⣿⣿⣿⣿⣿⣿⣿⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿
⡇⠀⠀⠀⠀⠀⠀⠀⠈⠉⠉⠉⠉⠉⠉⣼⣿⣿⣿⣧⠀⠀⠀⠀⠀⠀⠀⠀⢰⣿
⡟⠳⢤⣤⣀⣀⣀⠀⠀⠀⣀⣀⣤⣴⣾⣿⣿⣿⣿⣿⣷⣦⣤⣤⣤⣤⣤⣴⣾⣿
⣇⠀⠀⠀⠀⠉⠉⠈⠁⠈⠉⠉⡙⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿
⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿
⢠⣶⠿⠿⣷⡄⠈⣠⣶⠿⢿⣶⡄⠉⣡⣶⠿⠿⣶⡄⠄⣿⡇⢀⣾⡿⠃
⣿⣏⠄⠄⠄⠄⢰⣿⡇⢀⠄⣿⣿⠄⣿⡏⠄⠄⠄⠄⠄⣿⣿⣿⣿⡀
⠹⣿⣄⣠⣶⡆⠄⢿⣷⣀⣠⣿⡟⠄⢻⣷⣄⣠⣶⠆⠄⣿⡏⠈⢿
yall like that ;)?
#3 Find angles 1, 2 22 h A) 90, 68 B) 68,90 C) 90, 90 D) 68, 68
Answer:
a
Step-by-step explanation:
PLEASE HELP!!!! WILL GIVE BRAINLIEST!!!!!! <3
Answer: The numbers go from left to right on the table in this order: 0, 3, 4, 3, 0, -5.
To do the problem, you put the x - value in place of where the x is in the equation above (y = 4 - x^2) and then you put what y equals in the box after you finish.
Good luck, hope this helped!!
What are the points Please ASAP
Answer:
(0,1)
(0,-3)
(-2.5.-3)
Step-by-step explanation:
pls give me brainliest
:)
i’ll mark brainliest
Using the slope formula, find the slope of the line through the points (0,0) and (4,16)
A rectangular dining room has an area of 20 square meters. It's perimeter is 18 meters. What are the dimensions of the dining room?
Answer:
The dimensions are:
Length = 5m and Width = 4m
Or
Length = 4m and Width = 5m
Step-by-step explanation:
A rectangular dining room has an area of 20 square meters. It's perimeter is 18 meters. What are the dimensions of the dining room?
Area of a rectangle = Length × Width
= LW = 20 m²
Perimeter of a rectangle =
2L + 2W = 18 m
Hence:
LW = 20...... Equation 1
L = 20/W
2L + 2W = 18 ...... Equation 2
We substitute
20/W for L in Equation 2
2(20/W) + 2W = 18
40/W + 2W = 18
Multiply through by W
40 + 2W² = 18W
2W² - 18W + 40 = 0
2W² - 10W - 8W + 40 = 0
(2W - 8 )(W - 5) = 0
2W - 8 = 0
2W = 8 , W = 8/2 = 4m
W - 5 = 0
W = 5m
W = 4m or 5 m
Solving for L
When W = 5 m
L = 20/W
L = 20/5
L = 4m
When W = 4m
L = 20/W
L = 20/4
L = 5m
Therefore, the dimensions are:
Length = 5m and Width = 4m
Or
Length = 4m and Width = 5m
A rectangle has a width of 2x and a length of 2x+5, what is the area?
Answer:
what ever the next person says
Step-by-step explanation:
You have 40 minutes to exercise at the gym, and you want to burn 300 calories total using both
machines. The amount of calories burned on each machine is shown in the picture below. How
much time should you spend on each machine?
Machine a burns 8 calories per minute machine b burns 6 calories per minute.
Use the GCF and the distributive property to find the sum of 22+33
Answer:
22 + 33 = 55 the GCF of 22 and 33 is 11
Step-by-step explanation:
The sum of 22 and 33 by using distributive property will be; 55.
How to find Greatest common factor?The greatest common factor, as the name implies, is the greatest among all common factors among the quantities given.
We can factorize the quantities in the smallest relative factors possible (one level of factors over which all quantities can form themselves), and collect as many common factors as we could.
Factors:
22: 1 ,2, 11, 22
33: 1, 3, 11, 33
Both the numbers have a GCF of 11. Then by removing 11 from both numbers you end up with:
22 = 2 x 11
33 = 3 x 11
Now replace the values on the right of the equals sign into the original equation then;
(2 x 11) + ( 3 x 11)
The distributive property allows us to remove the common values and rewrite them;
11(2 + 3)
11(5)
55
The sum of 22 and 33 by using distributive property will be; 55.
Learn more about the greatest common factor here:
https://brainly.com/question/207329
#SPJ2
WILL MARK YOU BRAINLIEST
Answer:
because JKML is a parallelogram
=> JK // ML
=> KJM + LMJ = 180⁰
<=> 3x + 20 + 5x - 8 = 180⁰
<=> 8x = 168
<=> x = 21
with x = 21 => L = 4.21 - 1 = 84 - 1 = 83⁰
If angle 10 and angle 15 are congruent, which lines are parallel
Answer:
Line a is parallel with line b
Step-by-step explanation:
1/3 + (3x+12) = 6x -11
Answer:
x = 70/9
Step-by-step explanation:
Answer:
70/9
Step-by-step explanation:
If 3 varies inversely as x and y=2 when x=25, find x when y=40