Answer: 130
Step-by-step explanation: the answer is 130 because the water tank already has 120 liters and because it fills up 9 liters per minute after 87 seconds the answer would round up to 130.
Have a great day!!!
a bag contains only red , yellow brown and green marbles
the probabilities of selecting each colour are below
red - 5x
green - 2x
brown - 3x
yellow - 4x
find the probability of selecting a yellow marble
Answer:
2/7
Step-by-step explanation:
The total of all probabilities of possible outcomes must be 1, so we require ...
5x +2x +3x +4x = 1
14x = 1 . . . . . . . . collect terms
x = 1/14 . . . . . . . divide by 14
Then the probability of selecting a yellow marble is ...
4x = 4(1/14) = 2/7
The campers asked their counselor to tell them her age. She replied, “If you add four years to my present age, the result will be two times my camper’s. Five years ago my age was 3/4 of what hers will be in eight years.” How old is the counselor?
Answer:
20
Step-by-step explanation:
Camper=12
Counseler=20
20+4=24
24/2=12
20-5=15
15=3/4 of 20
12+8=20
Thus the counselor's age is 20 years.
Linear systemIt is a system of an equation in which the highest power of the variable is always 1. A one-dimension figure that has no width. It is a combination of infinite points side by side.
Ratio and proportionA ratio is an ordered pair of numbers a and b, written as a/b where b does not equal 0. A proportion is an equation in which two ratios are set equal to each other.
Given
Add four years to my present age, the result will be two times my camper’s.
Five years ago my age was 3/4 of what hers will be in eight years.
To findThe present age of counselor.
How to find the present age of counselors?Add four years to my present age, the result will be two times my camper’s. then,
y +4 = 2x .....1
Five years ago my age was 3/4 of what hers will be in eight years.
[tex]\rm y - 5 = \dfrac{3}{4} (x + 8)[/tex] .....2
From equation 1 and 2
[tex]\begin{aligned} \rm 2x - 4 - 5 &= \dfrac{3}{4} (x + 8)\\8x - 36 &= 3x +24\\5x &= 60\\x &= 12 \end{aligned}[/tex]
Put the value of x in equation 2, then
y + 4 = 2x
y + 4 = 2 *12
y = 24 - 4
y = 20
Thus the counselor's age is 20 years.
More about the linear system link is given below.
https://brainly.com/question/20379472
What type of function is shown in the data in the table below?
A)quadratic
B)polynomial
C)exponential
D)linear
A function assigns the value of each element of one set to the other specific element of another set. It can be concluded that the function in the table is a quadratic function and can be modelled as y=x².
What is a Function?A function assigns the value of each element of one set to the other specific element of another set.
A function from a set X to a set Y allocates precisely one element of Y to each element of X. The set X is known as the function's domain, while the set Y is known as the function's codomain.
The given function is the table if closely observed is a quadratic function. This can be modelled by the equation, y= x²
To check if its a quadratic function or not, substitute the value in the formed function,
y= x²
4 = (-2)²
4 = 4
y= x²
0 = 0²
0 = 0
y= x²
4 = (2)²
4 = 4
y= x²
16 = (4)²
16 = 16
y= x²
36 = (6)²
36 = 36
Hence, it can be concluded that the function in the table is a quadratic function and can be modelled as y=x².
Learn more about Function:
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#SPJ5
0 ÷ 0 = 1
Why, is 0 divided by 0 = 1?
Please, explain your answer. ( Note: There is an answer. )
Answer:
0/0 = undefined not 1
Step-by-step explanation: Undefined means there are no solutions possible for the operations in view. The example in question is itself wrong. n/0 is infinite but not undefined. 0/0 is undefined
Find the sum of the geometric series
1 - 0.99 + 0.99^2 - 0.99^3 + ... - 0.99^{79}
Answer:
-0.970199
Step-by-step explanation:
the diagram shows part of the curve with equation """"""""
Answer:
117[tex]\pi[/tex]/4
Step-by-step explanation:
see attached for step-by-step
Please help, I need this done as well!
Answer:
7
Step-by-step explanation:
94-87=7
Answer:
90 because the line in the middle of the box (not exactly the middle but okay) is considered the IQR.
a tool rental store charges a flat fee of $9.50 to rent a chain saw and $3.75 for each day including the first write an equation that expresses the cost y of renting this saw if it`s rented for x days
Answer:
y= 3.75x + 9.50
Step-by-step explanation:
3.75 per day
9.5 is the starting point
p is jointly proportional to q and r and p = 12 when q = 8 and r = 3
Answer:
:p= kqr12=k(8)(3)12=24k12/24=k 0.5=k or k=0.5p=0.5
Step-by-step explanation:
find the area of quadrilateral KLMN
Step-by-step explanation:
I just answered this ...
the first thing we notice : the quadrilateral has 2 pairs of equally long sides with 2 angles being openly 90°.
so, we are dealing with a rectangle here.
we know that one pair of the sides (NK = LM) are 24 cm long.
and we know that KL:LM = 3:4.
that means that the pair KL = MN are the shorter sides of the rectangle. and their length is according to the ratio 3/4 of NK=LM.
3/4 × 24 = 18 cm
the area of that rectangle is therefore
18 × 24 = 432 cm²
Find an equation for the line that passes through the points (-6,-3) and (2,-1)
Answer:
y = 1/4x - 1 1/2
Step-by-step explanation:
(-6, -3) (2,-1)
y = -3 - (-1) = -2 = 1
x = -6 - 2 = -8 = 4
y = mx + b
-1 = 1/4(2) + b
-1 = 1/2 + b
-1/2 -1/2
-1 1/2 = b
y = 1/4x - 1 1/2
The final equation is y equals one fourth x minus one and one half.
IDENTIFYING
RADIUS & DIAMETER
Radius =
36 cm
Diameter =
Answer: 72 cm
Step-by-step explanation:
The diameter is twice the radius, in other words just multiply the radius by 2.
36*2= 72 (You could also just add 36 to itself). I hope this helps!
This circle graph shows the results of a survey that asked 80
people which method of transportation they use to get to the city
park
How many people take the bus to the city park?
O 20 people
O 25 people
0 32 people
40 people
Thx
Answer:
32 peopleStep-by-step explanation:
Looking at the graph, we can say that 40% of the people rode the bus. We also know that 80 people took the survey.
Solution:
40/100 x 80=> 2/5 x 80=> 2 x 16=> 32 peopleHence, 32 people rode the bus.
Answer:
32
Step-by-step explanation:
i took the k12 test
Is my answer and graph correct?
How much radioactive kind of europium will be left after 39 years if the half life is 13 years and you start with 1216 grams
[tex]\textit{Amount for Exponential Decay using Half-Life} \\\\ A=P\left( \frac{1}{2} \right)^{\frac{t}{h}}\qquad \begin{cases} A=\textit{current amount}\\ P=\textit{initial amount}\dotfill &1216\\ t=\textit{elapsed time}\dotfill &39\\ h=\textit{half-life}\dotfill &13 \end{cases} \\\\\\ A=1216\left( \frac{1}{2} \right)^{\frac{39}{13}}\implies A=1216\left( \frac{1}{2} \right)^3\implies A=152[/tex]
I really need help I will make most Brainly
Answer:
I believe it's 70% but then again I'm not sure
Let g(x)=3x2+3x+17. Find g(p+3)
g(p+3)=
Have a great day, enjoy your answer.
:)
QUESTION ON PIC BRAINLIEST THANK YOU
Step-by-step explanation:
Given that
From the figure :
m angle 1 = 48°
Let m angle 2 = x°
And it is clearly m angle 1 and m angle 2 = 90°
90° = m angle 1 + m angle 2
Substitute the above values in equation then
⇛90° = 48°+x°
Shift the constant 50 from RHS to LHS, changing it's sign.
⇛ 90°-48° = x°
⇛42° = x°
⇛ x° = 42°
Therefore, m angle 2 = 42°
Answer: Hence, the value of m angle 2 is 42°
Additional comment:
The sum of the two angles is 90° then they are Complementary angles. The Complementary angle of x° is (90-x)°
Please let me know if you have any other questions.
Mike's electronics store sold the following number of cellphones on each of the seven days of a week. DayCell Phones Sold Sunday12 Monday10 Tuesday9 Wednesday5 Thursday14 Friday10 Saturday10 The mean number of cell phones sold by the store for the week was __________. 9 phones 70 phones 10 phones 5 phones
Answer:
(c) 10 phones
Step-by-step explanation:
The mean is the sum divided by the number of contributors:
(12 +10 +9 +5 +14 +10 +10)/7 = 70/7 = 10
The mean number of phones sold for the week was 10 phones.
A moving truck rental company charges $37.95 to rent a truck, plus $0.64 per mile. Suppose the function C(d) gives the total cost of renting the truck for one day if you drive 38 miles.
Required:
Give the formula for C(d). Make sure to give the complete formula as an equation.
Answer:
C(d) = 0.64c +37.95
Step-by-step explanation:
C(38) = 0.64(38) + 37.95 = $62.27
Two numbers multiply to give 2. both numbers have exactly 1 decimal place work out the two numbers
The two numbers are 2.5 and 0.8
To solve this problem, we have to take into cognizance that the two numbers are in one decimal place.
FractionsThis we can pick any number and then divide 2 by that number.
For example
[tex]\frac{5}{2}*x=2\\ x=\frac{4}{5}[/tex]
The two numbers here would be
5/2 = [tex]2.5[/tex]4/5 = [tex]0.8[/tex]Learn more on fractions here;
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A rectangle with integer side lengths is divided into four smaller rectangles
The perimeter of the largest and smallest of these rectangles are 28cm and 12cm
Which of the following is a possible area of the original rectangle
28/2=14
12/2=6
So it's half perimeter is 20
By trial and error the only possible solution is
8 * 12 = 96
Which rational number is multiplied by 64 to get the product -49 3/5
The rational number is equal to -31/40
Data;
product = -49 3/5number = 64What is a rational numberThis is a number that is usually expressed in fraction where both the numerator and denominator are integers.
Let the unknown number be represented by x
[tex]64*x=-49\frac{3}{5}\\64x=-\frac{248}{5}\\[/tex]
Let's solve for x
[tex]64x=-\frac{248}{5} \\\\5*64x=-248\\320x=-248\\x=-\frac{248}{320}\\x= -\frac{31}{40}[/tex]
From the calculations above, the rational number is -31/40
Learn more on rational numbers here;
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3 1/4 -1/2
I’m having trouble
expand 3 1/4
(12+1)/4
addition
13/4
expand 1/2
2/4
(13-2)/4=
11/4=
2 3/4
PLEASE HELP, IF YOU DONT KNOW THE ANSWER DONT ANSWER
Which three lengths can be the lengths of the sides of a triangle? Choose all that apply.
12 in, 15 in, 25 in
3 in, 3 in, 6 in
2 in, 3 in, 4in
7 in, 7 in, 7 in
Answer:
7 in, 7 in, 7 in
12 in, 15 in, 25 in
2 in, 3 in, 4in
Step-by-step explanation:
Answer:
Option AOption COption DStep-by-step explanation:
Let's verify all the options.
Option A:
12 + 15 > 25⇒ 27 > 25 (True)⇒ 12 + 25 > 15⇒ 37 > 15 (True)⇒ 15 + 25 > 12⇒ 40 > 12 (True)Option B:
3 + 3 > 6⇒ 6 > 6 (False)Option C:
2 + 3 > 4⇒ 5 > 4 (True)⇒ 2 + 4 > 3⇒ 6 > 3 (True)⇒ 3 + 4 > 2⇒ 7 > 2 (True)Option D:
This has to be true because this triangle is classified as an equilateral triangle, which is a triangle.
Hence, Option A, C, and D are correct.
Answer this question
Answer:
A. 5 B. 3,5
Step-by-step explanation:
A. (h/g)(4) means h(x)/g(x) where x=4, so you would set up the equation as (x-9)/(x-3)*(x-5), then plug in 4 for all your x values.
Doing this you get (4-9)/(4-3)*(4-5), simplifying this you get -5/(1*(-1)=5
B. 3 and 5 are the values not in the domain because when you plug them in for you x values you would get a 0 in the denominator.
For example, when you plug in 3 for x, you get -6/(0*-2)=-6/0
This gives you a 0 in the denominator which you can not do
Someone please help :)
Both pls :)
Step-by-step explanation:
10. -3 + 2 = -1
11. 5 - 9 = -4
hope this helps you!
How could y squared be rewritten?
Answer:
y^2 OR y²
y² is the more accurate way to write it, however both should work
Find the measure of side b.
• The number of apps on Sarah's phone can be represented
by x.
• The number of apps on Rachel's phone is 4 times the
number of apps on Sarah's phone.
• The total number of apps on both girls' phones is 115.
what is x
i will give brainlyest
