Answer:
perimeter L = 35 - w
Step-by-step explanation:
L × W = 300 : area , L is the length and W is the width. 2 L + 2 W = 70 : perimeter L = 35 - w : solve for L (35 - W) × W = 300 : substitute in the area equation W = 15 and L = 20 : solve for W and find L using L = 35 - w.
Hope it helps!!!Brainliest pls!!!A student has a 2% salt water solution and a 7% salt water solution. To best imitate salt water at a local beach, he needs 1 liter of a 3.5% salt water solution. He defines x as the amount of 2% solution and writes this equation:
0.2x + 0.7(x – 1) = 0.35(1)
He solves the equation and determines that x is about 1.17 liters. He interprets this as needing 1.17 liters of 2% solution to make 1 liter of 3.5% solution
The student clearly made a mistake, because he found that he needs to mix more solution that he wants to end up with. Mixing 1.17 L of one solution with more of some other solution will make more than 1 L of another solution.
The mistake is writing x - 1 instead of 1 - x.
Answer:
The answers:
It’s A & B
A.) The percent values were written incorrectly in the equation.
B.) The amount of 7% solution should be written as 1 – x, not x – 1.
Step-by-step explanation:
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The drama club is selling popcorn so they can earn enough money to travel to their next competition. The table below shows how much money the drama club earns for the amount of popcorn sold. Let p represent the number of bags of popcorn sold. Let t represent the total amount earned, in dollars. Number of Bags of Popcorn Sold p Total Amount Earned t 2 $3 4 $6 6 $9 8 $12 Enter an equation that represents the relationship between the number of bags of popcorn sold and the total amount of money earned.
please
Answer:
t=3/2p
Step-by-step explanation:
We can see the linear pattern between t and p as
p/t = 2/3=4/6=6/9 etc... So t/p=1/(2/3) =3/2 and therefore t=3/2p
Slope
m=(6-3)/4-2m=3/2Equation
y=3/2xOr
t=3/2pII. State the aditional information needed to prove each pair of triangles is congruent indicated by the theorem.
Answer:
Step-by-step explanation:
8) HL ---> Hypotenuse and Leg
It is already given legs are congruent
Hypotenuse: DE = IJ
9) LL -----> This SAS congruent ---> Both legs of the right angled traingle are congruent
AC = YX
10) LA ----> This is AAS congruent.
BE = EI
Hugo began his science experiment with 22 grams of sugar crystals. During the experiment, the change in the mass of the sugar crystals was – 6 grams. What is the final mass of the sugar crystals?
Answer:
16
Step-by-step explanation:22 minus 6 is 16
The final mass of the sugar crystals is 16 grams if Hugo began his science experiment with 22 grams of sugar crystals.
What is an arithmetic operation?It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.
It is given that:
Hugo began his science experiment with 22 grams of sugar crystals.
During the experiment, the change in the mass of the sugar crystals was – 6 grams.
Let x be the final mass of the sugar crystals.
The value of the x can be found using:
x = 22 - 6
x = 16 grams
Thus, the final mass of the sugar crystals is 16 grams if Hugo began his science experiment with 22 grams of sugar crystals.
Learn more about the arithmetic operation here:
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I need solution of 5
3) A certain medication is prescribed based on the patient's weight at 3mg for
every 20 pounds. How many milligrams of medication would you give a patient
who weighs 180 pounds?
Answer:
27 mg
Step-by-step explanation:
divide 180 by 20 to get 9
then multiply 9 by 3
you should get 27mg
Sebastian started watching a movie at 17:30.
The movie was 1 hour and 54 minutes long, but part-way
through he paused it for 13 minutes.
What was the time when the movie finished?
Give your answer using the 24 hour clock.
Answer:
19:37
Step-by-step explanation:
1 h and 54 m of the movie + 13 minutes that he paused is 2h and 7 m and adding that to the time it was makes it 19:37 or 7:37 pm
The time when the movie finished is 19:37 if Sebastian started watching the movie at 17:30. The movie was 1 hour and 54 minutes long.
What is the time zone?For legal, commercial, and social purposes, a time zone is a region that observes a uniform standard time. Instead of strictly following longitude, time zones tend to follow the borders between countries and their subdivisions.
It is given that:
Sebastian started watching a movie at 17:30. The movie was 1 hour and 54 minutes long, but part-way through he paused it for 13 minutes.
The total duration of the movie = 1 hour and 54 minutes
The total duration of the movie with 13 minutes pause
= 1 hour and 54 minutes + 13 minutes
= 2 hours 7 minutes
The movie starts at 17:30
Movies will end at 19:37
Thus, the time when the movie finished is 19:37 if Sebastian started watching the movie at 17:30. The movie was 1 hour and 54 minutes long.
Learn more about the time zone here:
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Maria buys 15 sarees. Each saree cost Rs. 525.50 Money spent by Maria is
Answer:
Rs. 7882.5
Step-by-step explanation:
if 1 saree ----->525.50
what about 15------>?
15×525.50÷1 = 7882.5.
I hope this helps
Answer:
Rs 7882.50
Step-by-step explanation:
525.50 x 15 = 7882.50
Mitchell has been given the option of either paying his $200 bill now or settling it for $204 after 1 month (30 days). If he chooses to pay after 1 month, find the simple interest rate at which he would be charged.
The simple interest rate that he would be of 24.33% a year.
Simple InterestSimple interest is used when there is a single compounding per time period.
The amount of money after t years in is modeled by:
[tex]A(t) = A(0)(1 + rt)[/tex]
In which:
A(0) is the initial amount.r is the interest rate, as a decimal.In this problem, considering than an year has 365 days, the parameters are as follows:
[tex]A(t) = 204, A(0) = 200, t = \frac{30}{365}[/tex]
Hence:
[tex]A(t) = A(0)(1 + rt)[/tex]
[tex]204 = 200\left(1 + \frac{30}{365}r\right)[/tex]
[tex]1 + \frac{30}{365}r = \frac{204}{200}[/tex]
[tex]\frac{30}{365}r = 0.02[/tex]
[tex]r = \frac{365}{30} \times 0.02[/tex]
[tex]r = 0.2433[/tex]
The simple interest rate that he would be of 24.33% a year.
More can be learned about simple interest at https://brainly.com/question/25296782
If Olivia makes a smoothie with a ratio 7 strawberries to 2 bananas, how many strawberries would she use with 3 bananas?
Answer:
13
Step-by-step explanation:
7strawberries 2 bananas 3 and she use the 3 bananas
and answer is.13
Answer:
The answer is 13 this is because idek
If x = 7-p and y = 3p + 4, which of the following
expresses y in terms of x ?
step by step please !!
Answer:
Step-by-step explanation:
Answer:
y = -3x + 25
Step-by-step explanation:
You have to find p first.
You can do this by using the x equation and moving the p to the right by adding p to each side to get p + x = 7.
Now, move the x to the left by subtracting x on both sides to get a final answer of p = 7 - x
Then, you can substitute p into the y equation.
So, y = 3(7 - x) + 4.
Distribute to get y = 21 - 3x + 4
Combine like factors to get y = -3x + 25
Hope this helps! :)
y=3x on a graph
a
b
c
d
Answer:
the answer is D cause of the y x axis
What is the slope?
Find the slope of the line in the graph.
Answer:
0.4 or 2/5
Step-by-step explanation:
Answer:
2/5
Step-by-step explanation:
Rise(up or down) 2 and run(right or left) 5
The whole equation would be y=2/5x+1
Which decimal number is NOT between the two decimal numbers on the
number line?
0.65
0.70
A
0.659
B
0.67
0.648
Answer:
0.648 I believe, i apoligize if its wrong, hope it goes well!
If someone is a chef, then he can cook well.
Jack is a terrible cook.
What us a valid conclusión?
Answer:
he is not a chef
Step-by-step explanation:
Answer: he a bad cook.
Step-by-step explanation:
find the average speed of a man that travel in 120km in 5hrs
Answer: 24 km/hour
Step-by-step explanation: 120/5= 24
how many kilograms are in 3650 grams?
Answer:
Step-by-step explanation:
There is [tex]1000g[/tex] in [tex]1kg[/tex].
Therefore we do:
[tex]3650g = \frac{1kg}{1000g} = \frac{3650g}{1000g}=3.65kg[/tex]
Mrs. keys has 36 pens. Yesterday she had half that amount plus 2. How many pens did she have?
Answer:
20 pens
Step-by-step explanation:
Half of 36 is 18, along with 2 additional pens.
Please help me solve this, I will give you brainliest
2008 payan walang yan ha kaya mo yan
GIVING BRAINLST MATHHH
Answer:
276.32, 401.92, 1256
Step-by-step explanation:
Volume is equal to the height times the surface of the base. The base is a circle, so its 3.14*(radius)^2. just plug in the values and round to the nearest hundred.
HELP ME PLEASEEEEEE
THANK YOUUUUU
Answer:
Step-by-step explanation:
WZ and ZR are perpendicular
WZ and ST are parallel
QT and YS are skewed
Plane WZR and plane SYZ are perpendicular
Step-by-step explanation:
WZ and ZP are perpendicular
WZ and ST are parallel
QT and YS are skewed
Plane WZR and plane SYZ are also perpendicular
What is 4⁹+ 4⁷ =
I need help I can’t figure this out
Answer:
278528
Step-by-step explanation:
1st we need to get the 1st 2 values of exponets
4 to the power of 9 is 4x4 9 times and that's 262144,
4 to the power of 7 is 4x4 7 times and that's 16384
16,384 + 262,144 is 278528
Answer: 278,528
Step-by-step explanation:
4⁹+ 4⁷ =
(4 x 4 x 4 x 4 x 4 x 4 x 4 x 4 x 4) + (4 x 4 x 4 x 4 x 4 x 4 x 4)
262,144 + 16,384= 278,528
It takes 8 minutes to cut a board twice. How long does it take to cut the board into 9 pieces
Answer:
36 minutes
Step-by-step explanation:
With the data given, we can calculate that if it takes 8 minutes to cut a board twice then, it takes four minutes to cut one board. We can then determine how long it takes the cut a board into 9 pieces by multiplying 9 x 4 to equal the amount that it takes for a board to be cut into 9 pieces which would be 36.
In conclusion, it would take 36 minutes to cut a board into 9 pieces.
Have a great rest of your day
#TheWizzer
help me and thanks hans for all the help
can someone answer this question plsss I'm late
it took him 27 minutes to reach home
| Find the total surface area of the prism.
3 cm
5 cm
8 cm
4 cm
6 cm
Answer:
8
Step-by-step explanation:
• Evaluate the expression
33 • (12 - 2) = 2.
Answer:
33 * (12-2) = 2 is not correct answer the real answer is 330
Step-by-step explanation:
(12-2) = 10
33 * 10 = 330
(4,3)(-3,1) slope intercept
Answer:
y = 2/7x + 13/7 (slope intercept : y = mx + b)
Given two points (4, 3), and (-3, 1) You can start off with point slope because you are just given points.
Point slope: y - y1 = m(x - x1).
Point 1 : (4, 3) → (x1, y1). Point 2 : (-3, 1) → (x, y).
→ 1 - 3 = m(-3 - 4)
-2 = m ( -7 )
-2 = -7m
2/7 = m
m = 2/7.
Since you have the slope, all you need is one point.
y - 3 = 2/7 ( x - 4 )
y = 2/7 ( x - 4 ) + 3
y = 2/7x - 8/7 + 3
y = 2/7x - 8/7 + 21/7
y = 2/7x + 21/7 - 8/7
y = 2/7x + 13/7
*taydah*
______________
or if you don't like point slope, you can just find the slope between the two points, and then find the y intercept.
m = y2-y1/x2-x1
m = 3-1/4--3
m = 2/7
Then multiply the slope by the x of one of the coordinates, and subtract one of the y values from the coordinates from the slope multiplied by the x of the same coordinate.
let's use (-3, 1)
→ 1 - -3 ( 2/7 )
1 + 3 ( 2/7 )
1 + 6/7
13/7
*Here is the y intercept*.
Then just put this in the form y = mx + b and you are done!
y = mx + b → y = 2/7x + 13/7
2. Find the rank of 4 1 3 3 3
7 -1 6 0 6
2 3 8 2 8
Step-by-step explanation:
please mark me as brainlest
How do you know that the table and the equation represent the same proportional relationship between x and y
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