Answer:
15
Step-by-step explanation:
6 times 3 equals 18, then you subtract 3 from that and thats the answer
Barb pulled the plug in her bathtub and it started to drain. The amount of water in the bathtub as it drains is represented by the equation L = -5t - 8t + 120, where L represents the number of liters of water in the bathtub and t represents the amount of time, in minutes, since the plug was pulled. How many liters of water were in the bathtub when Barb pulled the plug? Show your reasoning. Determine, to the nearest tenth of a minute, the amount of time it takes for all the water in the bathtub to drain.
The bathtub had 120 L of water before Barb pulled the plug.
It will take about 9.23 minutes for the water to drain out.
Given equation: L = -5t - 8t + 120
Simplified: L = -13t + 120
Notice how it's written in slope-intercept form (y = mx+b)
The y-intercept (L) is 120. So the coordinates for L = (0 , 120)
The coordinates mean that before the water in the bathtub began draining out, it initially had 120 Liters of water.
Now that we know how many liters there were before, the new equation would look like this: L = -13t --> 120 = -13t
Solving the equation, we get that t = -9.23 minutes
Since time can't be negative, we'll just say that it will take 9.23 minutes to drain out all the water.
Help me out for brainliest and 40 points :) With explanations please.
For this, you will just simplify to figure it out. It should be pretty easy.
14/5 is 2 4/5 (2 whole and 4/5 extra)
17/8 is 2 1/4 (2 whole and 1/4 extra)
11/3 is 3 2/3 (3 whole 2/3 extra)
15/6 is 2 1/2 (2 whole 1/2 extra)
Hope it helps!
Answer:
a 2 4/5 b 2 1/8 c 3 2/3 d 2 3/6
Step-by-step explanation 14 goes into 5 two times 5x2=10 , 14-10=4 . 17 goes into 8 two times 8x2=16, 17-16=1. 11 goes into 3 three times 3x3=9 , 11-9=2. 15 goes into 6 two times 6x2=12 , 15-12=3
helppp please i really
Answer:
the and is 574
Step-by-step explanation:
in the function table it shows that that they r all multiples of 14
therefore 14×41 = 574
Answer:
574
Step-by-step explanation:
(08.06 MC)
A teacher wants to find out the average number of weekly reading hours of her students. She noted the number of reading hours of 5 of her students, as shown below:
8, 6, 5, 7, 4
Which measure of central tendency is most appropriate for this situation and what is its value? (1 point)
Only the median; 6
Only the mean; 5
Either the mean or median; both are 6
Either the mean or median; both are 5
Answer:
only the median 6
Step-by-step explanation:
it is a better measure way to use to see average
-1 1/2 _ -1 3/4 which one is greater or less, or equal?
Answer:
The answer is -1 1/2 is less than -1 3/4
Step-by-step explanation:
I look at it more as numbers, so for example 1/2 can be simplified into 50, and 3/4 is 75/ 75 would be greater if it was positive. But, with there being a negative 1 in front of the answer, the lowest number closest to 0 is better. :D
Answer: -1 1/2 is greater
Step-by-step explanation:
-1 1/2 is closer to zero and that makes it larger because they are negative numbers.
Solve for the missing variables. (Geometry)
Step-by-step explanation:
we are using the right triangle altitude theorem. it means that in a right-angled triangle the geometric mean of the two segments of the Hypotenuse (the baseline opposite of the 90° angle) equals the altitude.
in other words
h² = p×q
h = height
p, q are the 2 segments of the Hypotenuse.
so, in our case we have
100 = x(x + 21) = x² + 21x
that gives us the following quadratic equation
x² + 21x - 100 = 0
the general solution to a quadratic equating is
x = (-b ± sqrt(b² - 4ac))/(2a)
in our case
a = 1
b = 21
c = -100
so,
x = (-21 ± sqrt(21² - 4×1×-100))/(2×1) =
= (-21 ± sqrt(441 + 400))/2 = (-21 ± sqrt(841))/2 =
= (-21 ± 29)/2
x1 = (-21 + 29)/2 = 8/2 = 4
x2 = (-21 - 29)/2 = -50/2 = -25
x2 would give us negative lengths for the triangle, which does not make sense.
so, x = 4 is our solution.
that makes the segments of the Hypotenuse 4 and (4+21) = 25 units long (the whole baseline is then 4+25 = 29).
13. An elephant takes 8 steps in 10 seconds. At this rate, how many steps does it take in 4 minutes?
Answer:
192
Step-by-step explanation:
8 steps per 10 seconds
How many steps per 4 minutes?
First, find out how many 10-second intervals there are in 4 minutes.
4 minutes = 240 seconds
240 divided by 10 is 24
24 ten second periods times 8 steps per 10 seconds
192
192 steps in 4 minutes
HELP ASAP FOR HOMEWORK
Answer:
Total cost of each class = 26s + a
Step-by-step explanation:
52/2 = 26
26*s + 1*a
Pls help me i dont understand no links also giving brainliest to correct answer
Answer:
hi I don’t know what you need because there is no picture but if you need help with other things I can help.
Step-by-step explanation:
HELP PLEEEAAASEEEE
A farmer planted 154 tomato plants. 46 of the plants d!ed. He replanted the plants in rows, with each row containing 9 plants. Which equation can be used to find p, the number of rows the farmer planted?
A) p = (154 46) × 9
B) p = (154 46) − 9
C) p = (154 − 46) 9
D) p = (154 − 46) ÷ 9
Answer:
154+46×9 is the write answer
What is the surface area of this triangular prism?
Answer:
2640in
Step-by-step explanation:
11x4=44
44x2=88
5x3=15
15x2=30
88x30=2640
Answer:
23
Step-by-step explanation:
first you add 5 and 3 then add 11 and you will have 19 the add 4 then you get 23
Pls answer this, first one to answe this gets brainliest!
Answer:
22
St
ep-by-step explanation:
Find the middle value of the data set and that is your answer. If there are 2 middle values then add them together and divide by 2.
PLS HELP ASAP ITS DUE TODAY!!
Answer: C
Step-by-step explanation:
Triangle weighs 3 grams Circle weighs 6 grams. Write an equation to represent each hanger. Let x represent the pentagon.
Answer:
Answer: 3.75 g
Step-by-step explanation:
Assume the weight of the square is x.
The hanger is in balance so the left side is equal to the right side.
Equation therefore is:
Triangle + Square + 3 * circle = 5* square + circle
3 + x + (3 * 6) = 5x + 6
3 + x + 18 = 5x + 6
5x - x = 3 + 18 - 6
4x = 15
x = 15/4
x = 3.75 g
The temperature rised 3 °F every hour for 6 hours. What was the total number of degrees the temperature changed in the 6 hours?
-18 degrees
9 degrees
18 degrees
-10 degrees
Answer:
18 degrees
Step-by-step explanation:
6 hours times 3 Fahrenheit every hour is 18 Fahrenheit
How many lines of symmetry does this figure have?
Answer:
i think 2 not really sure
Answer:
4 lines
Step-by-step explanation:
you have 1 line vertically, another horizonatlly and two on a line that equal t y=x and y= -x
31. You want to bring a wolf, a goat, and a cabbage across a river. You are the rower and don't get out of the boat. The wolf wants to eat the goat, and the goat wants to eat the cabbage, but neither will happen as long as you are near. Besides yourself, there is room for only one item in the boat. How can you bring all three across the river?
The rower can bring all of them to another side because if he put sheep and wolf along with wolf will eat the sheep.
What is logical thinking?The process of applying a chain of reasoning to solve a problem and achieve a conclusion is known as logical thinking. It's an effective method for conquering seemingly insurmountable difficulties because it gives you the mental tools you need.
We have:
You want to bring a wolf, a goat, and a cabbage across a river. You are the rower and don't get out of the boat.
The rower first takes the sheep to the other side then again from the starting point he takes the wolf and takes it to another side then picks the sheep to take it to another side then and drops the sheep at the starting point and picks the cabbage then drop it to another side then again pick the sheep and drop to another side.
Thus, the rower can bring all of them to another side because if he put sheep and wolf along with wolf will eat the sheep.
Learn more about the logical thinking here:
https://brainly.com/question/4073398
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Write the final coordinates of the image of D, E, A after the following transformations
Translate the figure using the rule (x + 6, y + 1) and then reflect over the x- axis.
(Enter the ordered pairs in parenthesis without space bar, like (-3,9) )
WILL GIVE BRAINLIEST
Step-by-step explanation:
well, the translation (x+6, y+1) creates the following points :
D goes from (-4,-4) to (2,-3)
E goes from (-4,-2) to (2,-1)
A good from (-1,-4) to (5,-3)
the reflection over the x-axis leaves then the x values unchanged, and negative y values turn positive (or vice versa, if we had a case here).
so,
D' = (2,3)
E' = (2,1)
A' = (5,3)
can sb please help me
Answer:
the answer is 19
Step-by-step explanation:
hence the output is 19 hope it help u
putting the value of x in rule
2x+7
2*6+7
=19
1. The average height of a group of students is 157 cm. After Tamiko joins the group, the new average height is 152 cm. Tamiko is 137 cm tall. How many students are there in the group in the end?
Answer:
152cm
157cm
+ 137cm
Step-by-step explanation:
Which expression is equivalent to 2.5((2x-5)-(5x+2))?
Answer: b or c
Step-by-step explanation: they both appear to be the same answer so i don’t know which one it would be
A cone-shaped tent has a diameter of 12 ft and a height of 6 ft. What is the approximate volume of the tent? Use 3.14 for π.
You may use your formula sheet and a calculator.
Question 7 options:
904.32 ft³
37.68 ft³
226.08 ft³
75.36 ft³
PLEASE HELP!! FIRST QUICK CORRECT ANSWER GETS BRAINLIEST
Answer:
A) [tex]x=42\sin32^\circ[/tex]
Step-by-step explanation:
With respect to our angle, the side opposite to it is [tex]x[/tex], and the hypotenuse is [tex]42[/tex], so the trig ratio we need to use here is sine as [tex]\displaystyle \sin\theta=\frac{\text{opposite}}{\text{hypotenuse}}[/tex]. Hence, if we rearrange the equation so that we solve for the opposite side [tex]x[/tex], then we'll have [tex](\text{hypotenuse})(\sin\theta)=\text{opposite}\rightarrow42\sin32^\circ=x[/tex] as the correct equation.
Pls answer quick and no links! I’ll give brainliest to the correct answer
A large solar panel is designed to have multiple smaller sections. A small section of one panel is pictured below. Imagine it breaks and needs to be replaced. Your friend says that it has an area of 30.4 inches. Do you agree? Explain your reasoning.
(Edge math project: International Space Station -Finding Area Project - Step 1: question C)
The requried small section of the solar panel does not have an area of 30.4 inches.
What is surface area?Surface area is defined as the measure of a region or surface is called as surface area.
Identify the problem and find the area of the small section.
Formulate the area using the dimensions provided: (10.4 x 4.8)/2
Solve for the area: (49.92)/2 = 24.96
Contrast the calculated area with the given area: 24.96 is not equal to 30.4.
Finalize the answer: Disagree, the small section of the solar panel does not have an area of 30.4 inches.
Thus, the requried small section of the solar panel does not have an area of 30.4 inches.
Learn more about the surface area here: https://brainly.com/question/2835293
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Consider the figure.
Find the area of the composite figure shown to the nearest half unit.
Answer:
Area = 13
Step-by-step explanation:
see image. There's a brick of 8 whole squares on the bottom. Then a layer of 3 whole squares on top of that. There's a 1/2 a square besides the 3. Then on top, there is half of a layer of 3 squares. Half of 3 is 1 1/2.
8 + 3 + 1/2 + 1 1/2
= 8 + 3 + 2
= 13
There is an equal number of 2 brands of watches on a shelf. Brand at watches cost $58 each, and Brand B watches cost $30 each. If the total cost of all the watches on the shelf is $22,000, how many watches are there?
Answer: There are 227 watches.
Step-by-step explanation:
What I did was that, I added the cost of watch A and B and then divided the sum by $22,000
What is the sales tax on a refrigerator priced $1269, if the sales tax rate is 6.7%?
Answer:
sales tax: $85.023
Explanation:
Original or actual price is always of 100%
Solving:
100% = $1269
Find the unit percent :
1% = $(1269/100) = $12.69
Find the sales tax :
$12.69 × 6.7 = $85.023
Consider the two-way table.
Group A Group B
Category 1 80 170
Category 2 90 84
Complete the table below to show the relative frequencies of the data in the first row.
Enter numbers in the boxes as decimals to the hundredth place.
Please give an explanation instead of just stating the answer!
Answer: Group A: 0.32 Group B: 0.68.
Explanation: I dont really have one, but a while ago i took the test and it was right.
Have a great day/night. :)
Answer:
Group A: 0.32 Group B: 0.68.
Step-by-step explanation:
34. A 6-member committee is to be chosen by drawing Nmes of individuals from a hat. If the hat contains the Nmes of 8 men and 14 women, find the probability that the committee will consist of 3 men and 3 women.
(PLS HELP MY TEACHER WANTS ME TO PASS THIS!)
It costs $50 to be a member of an online gaming service. The membership allows you to play games online for free; however, you will still need to purchase games for $60 each. if you can purchase up to 6 games a year, which are the domain and range of this linear function? (answer choices in picture)