Answer:
x= 1 - y/2
Step-by-step explanation:
1. Subtract y from both sides. 2x=2−y
2. Divide both sides by 22.
x=\frac{2-y}{2} x= 22−y
3. Simplify \frac{2-y}{2}
22−y to 1-\frac{y}{2}1−2y. and there u get ur answer x=1−2y
this is for "2x+y=2" btw hope this helped!
what is 10 x 1080? Can someone help?
Answer:
10,800
Step-by-step explanation:
1. Multiply the ones
2. Multiply the tens
3. Multiply the hundreds
4. Multiply the thousands
5. Multiply the ten - thousands
Follow the steps and you will get the answer!
The approximate time between two high tides or
two low tides is?
Answer:
It's (very roughly) 12 hours from one high tide to the next, and of course the same for low tides. That's because the tides produced when the Moon is directly overhead or in the opposite direction are the same. Same with two low tides, since there are two tides a day (both low and high).
Answer:
Because the Earth rotates through two tidal bulges every lunar day, coastal areas experience two high and two low tides every twenty-four hours and fifty minutes. High tides occur twelve hours and twenty-five minutes apart. It takes six hours and 12.5 minutes for the water at the shore to go from high to low, or from low to high.
Step-by-step explanation:
because I said
please mark me brainliest
Matthew is making bags of trail mix for hiking club. He will use 21 ounces of walnuts, 10.1 ounces of almonds, and 28.4 ounces of cashews. This amount makes 25 bags of trail mix. How many ounces are in each bag?
Answer:
its 2.38 ounces in each bag
Step-by-step explanation:
u add all of he numbers then divide by 25. your welcome
Work out the percentage change to 2 decimal places when a price of £125.99 is increased to £150.
Answer:
Percent change is 19.06%
Step-by-step explanation:
It is given that:
Price before change = £125.99
Price after increase = £150
Change = 150 - 125.99 = £24.01
Percent of change = [tex]\frac{Change}{Price\ before\ change}*100[/tex]
Percent of change = [tex]\frac{24.01}{125.99} * 100[/tex]
Percent of change = 0.1906 * 100
Percent of change = 19.06%
Therefore,
Percent change is 19.06%
Answer:
19.06
Step-by-step explanation:
HELP FIND THE UNIT RATE OF 90 DAYS/20 TRIPS PLEASEEEEE
Answer:
The unit rate is 4.5 days per trip
Step-by-step explanation:
So the equation would be 90 divided by 20
Simplified it is the same thing as 9 divided by 2
90 divided by 20 is 4.5
Answer:
4.5/1
Step-by-step explanation:
First, I found that 10 was the first factor or whatever I could find, so our new ratio is:
9/2
This is obviously not the unit rate, but if we divide by 2 we get:
4.5/1
So our unit rate is 4.5/1
What is 1.8(x-4.2)+x simplified, I do not need to know what is x is, I just wanted to know what the equation is simplified
Answer:
2.8x - 7.56
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
a mockingbird flaps its wings about fifty thousand four hundred times in an hour round this number to the nearest thousand.
Answer: It would be 50,000
Step-by-step explanation: If it was 50,500 - 50,999 it would be : 51,000
Hope it helped out :)
PLZ I NEED HELP ILL GIVA YALL BRAINLIEST
Answer:
39 possible outcomes.
Step-by-step explanation:
Since there are 52 cards in a deck and Jane has 3 decks, that would give Jane 156 cards, leaving us to divide that number by 4 because 4 cards are dealt at the start of the game.
Carlos purchased 6 dog leashes and 5 cat brushes for $32. Later in the summer, he purchased 3 more dog leashes and 2
cat brushes for $14. What were the prices of the leashes and brushes?
Answer:
all together the total amount of money spent was 46$
Step-by-step explanation:
4. 8 16,
Find the next 3 term of geometric sequence
Answer:
32, 64, 128
Step-by-step explanation:
Let us start by looking at the geometric progression. A geometric progression multiplies each number by a constant, which we can name r, to get the next term. Let us find this constant:
16÷8=2
8÷4=2
Both expressions confirm that our r, the constant, is indeed 2.
To find the next few terms, we simply multiply by r:
1. 16r=16×2=32
2. 32r=32×2= 64
3. 64r= 64×2 = 128
I hope this helps! Please let me know if you have any further questions :)
Add or subtract the measurements. You must include the units.
Answer:
a. 22 ft 5in
b. 24 ft 4in
c. 2 ft 8 in
Step-by-step explanation:
all you need to do is add and substract them and then chance the units.
After 50 soccer games, the ratio of wins to losses is 3:7. How many games did the team win?
Answer:
15
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just don’t want to waste my time in case you don’t want me to :)
Given: A= (0, 0), (2, 1). (3, 1.5). (4, 2). .}ls A a function and why?
Answer:
Yes, it is a function
Step-by-step explanation:
the definition of a function is "a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output." Our input is represented by x, or the first number in the parentheses, and our output is y, or the second number in the parentheses. Because each x value had exactly one output, or y, it is a function
can someone please help me
JKLM is a rhombus. KM is 20 and JL is 48. Find the perimeter of the
rhombus.
Answer:
104 units
Step-by-step explanation:
Given
Shape: Rhombus
[tex]JL = 48[/tex]
[tex]KM = 20[/tex]
Required
Determine the perimeter
The given parameter are the diagonals of the rhombus.
The perimeter (from diagonals) is calculated as thus:
[tex]P = 2\sqrt{(JL)^2 + (KM)^2}[/tex]
Substitute values for JL and KM
[tex]P = 2\sqrt{48^2 + 20^2}[/tex]
[tex]P = 2\sqrt{2304 +400}[/tex]
[tex]P = 2\sqrt{2704}[/tex]
[tex]P = 2 * 52[/tex]
[tex]P = 104[/tex]
Hence, the perimeter is 104 units
A 6 ft tall petrified stump standing next to a car casts a 12 ft shadow. If the car casts a shadow that is 6 ft long, then how tall is it?
Answer:
3 feet tall
Step-by-step explanation:
21 The graph of an exponential function is shown on the grid.
Based on the graph, which statement about the function is true?
A The range is the set of all real numbers less than 0.
B The domain is the set of all real numbers greater than-4.
C The range is the set of all real numbers greater than 0.
D The domain is the set of all real numbers less than-4.
Answer:
C The range is the set of all real numbers greater than 0.Step-by-step explanation:
We see that the function has positive range and no restriction of domain.
A The range is the set of all real numbers less than 0.
Incorrect, positive values onlyB The domain is the set of all real numbers greater than-4.
Incorrect, the domain can get any valueC The range is the set of all real numbers greater than 0.
Correct, the range is restricted to positive valuesD The domain is the set of all real numbers less than-4.
Incorrect, no restrictionsAnswer:
C is the correct answer!!
Step-by-step explanation:
hope this helped!!
Marlowe loves to draw. She wants to refine her skills and start taking drawing lessons at a local art studio. The table shows the cost of drawing lessons.
Sorry im a little late but here's how i did it.
Hope this helps! :)
The perimeter of a square is 68 inches. Write and solve an equation to find the length of its sides.
Answer:
17
Step-by-step explanation:
68/4=17
all 4 sides are equal lengths since it is a square.
Answer:
Step-by-step explanation:
68+68+68+68= (or 68x4) 272 inches
NEED HELP ASAP PLZZZCircles can start with just a little bit of information and grow into equations and graphs. what are the coordinates of the center point and the radius of a circle?
Answer:
i need a photo this makes no sense
Step-by-step explanation:
Solve the inequality 21<2x+3
Answer:
x = 9 and up
Step-by-step explanation:
To make a profit, a clothing store sells board shorts at 115% of the amount they paid for them. How much did the store pay for the board shorts shown?
Answer:I’m trying to find that too
Step-by-step explanation:
Find the percent of change. Round to the nearest tenth, if necessary.
In the 2006 season, Tom Brady threw for 3,529 yards. In the 2007 season, he threw for 2,806 yards.
Answer:
20.487%
Step-by-step explanation:
divide the second number by the first. then do one minus that number
If a town with a population of 5,000 doubles in size every 11 years, what will the population be 44 years from now?
A marine biologist monitors the population of sunfish in a small lake. He records 800 sunfish in his first year, 600 sunfish in his fourth year, 450 sunfish in his sixth year, and 350 sunfish in his tenth year. Using the exponential regression equation (rounded to the hundredths),
1. Predict when the population of sunfish in the lake will be 200.
2. Predict the number of sunfish in the lake in the 25 thyear.
Answer:
Let's use the variable y to represent the number of years passed since the first year.
The population on the first year (y = 0) was 800
The population in the second year (y = 1) was 600.
The ratio in which the population decreased can be calculated as:
R = 600/800 = 0.75
This means that 600 is the 75% of 800, this also means that between the first year and the second year, the population decreased by the 25%
Now let's look at the ratio between the second and third year (y = 2), the population the third year was 450
Now the ratio is:
R = 450/600 = 0.75
Same as before, then we already can see that the population will decrease by 25% each year.
The generic exponential decay equation is:
f(y) = A*(1 - r)^y
where:
A = initial population, in this case, is 800
y = our variable, in this case, represents the number of years
r = the amount that decreases per each unit of our variable, this must be written in decimal form. In this case, we know that the population decreases by 25% each year, and 25% written in decimal form is 0.25
Also, (1 - r) = R, where R is the ratio we found earlier.
To do this, we just divide 25% by 100% to get (25%/100% = 0.25)
Then our equation will be:
f(y) = 800*(1 - 0.25)^y
f(y) = 800*( 0.75)^y
1) We want to predict when the population will be 200.
to do this, we set:
f(y) = 200 = 800*( 0.75)^y
and solve it for y.
(200/800) = 0.75^y
(1/4) = 0.75^y
Now we can use the relationship:
Ln(a^x) = x*ln(a)
Then let's apply Ln( ) in both sides to get
ln(1/4) = y*ln(0.75)
ln(1/4)/ln(0.75) = y = 4.8 years.
This means that 4.8 years after the first year, the population will be around 200.
2) The population in the 25 th year (this is 24 years after the first one, so we take y = 24) is:
f(24) = 800*(0.75)^(24) = 0.80
Around this point, we will have no more sunfish in the lake.
If x = 5y - 1 and 2x + 5y = -32, what is the value of y?
Answer:
y = 2 and five together
Step-by-step explanation:
I need help with this problem
Answer:
-0.125 or -1/8
Step-by-step explanation:
switch the numerator and denominator and then divide. So, -8/1 should switch to 1/-8, and then you divide the two to get, your answer, -0.125
Matt is given 9/10 hours to shovel a driveway. He only uses 2/3 of the given time to shovel the driveway. How much time is left?
Answer:
0.23333333333
Step-by-step explanation:
Answer:
7/30
Step-by-step explanation:
first make them both have common denominator
9/10= 27/30
2/3=20/30
they both go into 30 then subtract 27/30 and 20/30
HELP ME PLEASE WILL GIVE BRAINLY
Answer:
A.
Step-by-step explanation:
solve for x triangle
Answer:
x=65
Step-by-step explanation:
solve for the angle not marked⇒ 180-147=33
add known angles⇒ 33+82= 115
subtract total known value from 180**⇒ 180-115=65
**all interior angles of a triangle must add up to 180°