Step-by-step explanation:
3x+5x=25xy+x-4
8x=25xy+x-4
8(-3)=25(-3)(5)+(-3-4)
-24=25(-15)+(-7)
-24= -375-7
-24= -382
if the question is right that you asked, i mean the = sign then the solution is will be come like this but if there is no = sign then you can get the solution by subtracting -24-382= -406
WILL MARK BRAINLIEST
I need help with this question
Answer:
f(x)= -10cos(3x)+10
Step-by-step explanation:
I hope this is right !
40% of 120 is what number?
Question 1 options:
A: 48
B: 3
C: 4,800
Answer:
48
Step-by-step explanation:
40% of 120
40 x 120 = 4800 / 100 = 48
100
Answer:
A- 48
Step-by-step explanation:
You divide your percentage by 100. So, 40% would be 40 divided by 100 or . 40. Once you have the decimal version of your percentage, simply multiply it by the given number.
Please help. Cesium-137 has a half-life of 30 years. Identify the amount of cesium-137 left from 150 milligram sample after 120 years.
1.325 mg
0.9375 mg
9.3750 mg
1.097 mg
Answer:
1.325 mg
have a good day :)
Answer:
9.3750 mg
Step-by-step explanation:
Stefan's city took a survey about a plan for a new park. Of the people surveyed, 2,800 liked the plan for the park and 1,200 did not. What percentage of the people surveyed liked the plan?
Answer:
70% of people surveyed liked the plan.
Step-by-step explanation:
Given that,
No. of people that liked the plan = 2,800
No. of people that did not like the plan = 1,200
We need to find what percentage of the people surveyed liked the plan. It can be given by :
[tex]\%=\dfrac{2800}{2800+1200}\times 100\\\\=70\%[/tex]
So, 70% of people surveyed liked the plan.
In what case does 8 + 8 = 4?
The correct answer, = 20 points and brainliest.
Please answer if you know the answer
Good luck!!!
Step-by-step explanation:
8:00 + 8:00 = 16:00 = 4:00PM
At a sleepover, three friends ate of a pizza for a
snack the next day, the friends ate of the leftover
pizza What fraction of the whole pizza was not eaten?
Answer:
none
Step-by-step explanation:
if they ate it all as leftovers then there was no pizza left uneaten
do you guys think my body is good for summer?
Answer: YES girl you should be proud
Step-by-step explanation:
Answer:
Yes
Step-by-step explanation:
body crazy curvy wavy
27 POINTS!!!!!!!!!!!!! PLEASE!!!!
Answer:
Step-by-step explanation:
Yooo I rly need help with this plzzzzz
Answer:
The second option
Step-by-step explanation:
I hope this helps
The ___________ are located on the chromosomes of a cell and contain information about traits.
A) Genes
B) Ribosomes
Plz, HELP me with this question!
Answer:
2/3
Step-by-step explanation:
There is a 2 in 3 chance the pointer will not land on c or d.
A jogger ran 6 miles due east of his house. Then he ran 4 miles at a heading of 30o East of North (or 30o NE). How far is he from his house after running 10 miles?
Answer:8
Step-by-step explanation:
Answer: square root of 76
Step-by-step explanation:
6^(2)+4^(2)-2*6*4*cos120= 76 and then to simplify you square root it
Please help me with this
What is the surface area of the cylinder with height 6 mi and radius 3 mi? Round your answer to the nearest thousandth
Answer:
113.097
Step-by-step explanation:
this is the answer, also if so can i have brainliest
Answer: 169.646 mi^2
Step-by-step explanation:
2 last questions:
1.) You toss 5 dimes. What is the probability that at least two dimes land on tails?
2.) King Francis decided to divide up his kingdom among his sons. He gave his first son one-eight of the villages he ruled over and one more village. The king gave his second son one-ieth of the remaining villages and two more villages. He continued like this, until he gave his seventh and youngest son one-eight of the remaining villages and and seven more villages. After that, all the villages in the kingdom had been passed on to his children. How many total villages are there in the kingdom?
Problem 1
Answer: 26/32-----------------------
Work Shown:
There are is 1 way to get 0 tails (aka 5 heads)
There are 5 ways to flip the coins so that exactly one coin shows tails and the rest are heads.
We have 1+5 = 6 ways of getting at most 1 tail. The phrasing "at most 1" means "1 is the largest number we can get".
There are 2^5 = 32 ways to flip five coins, so there are 32-6 = 26 ways of getting at least two tails. Note the events "getting at most 1 tail" and "getting at least 2 tails" are complementary events. One or the other must happen.
The probability of getting two or more tails is therefore 26/32.
========================================================
Problem 2
Answer: 56 total villages-----------------------
Work Shown:
We'll work our way backwards starting with the last (7th) son
x = number of villages left before the 7th son gets his share
x/8 + 7 = number of villages the 7th son gets
x - (x/8+7) = 7x/8 - 7 = number of villages left after the 7th son gets his share
This amount should be 0, so,
7x/8 - 7 = 0
7x/8 = 7
7x = 7*8
7x = 56
x = 56/7
x = 8
There are 8 villages left before the 7th son gets his share; this means he gets x/8+7 = 8/8+7 = 1+7 = 8 villages. Or you can note that if there are 8 villages left, and he's the last in line, then he gets the remaining 8.
Plugging x = 8 into 7x/8 - 7 leads to 0.
----------
y = amount of villages left before the 6th son gets his share
y/8 + 6 = amount of villages the 6th son gets
y - (y/8+6) = 7y/8 - 6 = amount of villages left after 6th son gets his share
We match up the x = 8 found earlier with this new expression and we solve for y. This is because x represents the number of villages leftover after the 6th son gets his share. After the 6th son gets his share, that leftover x is then handled for the 7th son as discussed above.
7y/8 - 6 = x
7y/8 - 6 = 8
7y/8 = 14
7y = 14*8
7y = 112
y = 112/7
y = 16
There are 16 villages leftover before the 6th son gets his share.
This means the 6th son gets y/8 + 6 = 16/8 + 6 = 2+6 = 8 villages.
----------
z = amount of villages left before the 5th son gets his share
z/8 + 5 = amount of villages the 5th son gets
z - (z/8+5) = 7z/8 - 5 = amount of villages left after 5th son gets his share
You can probably spot the pattern by now. We'll follow the same idea as before. Set 7z/8-5 equal to the 16 villages and we get
7z/8-5 = y
7z/8-5 = 16
7z/8 = 16+5
7z/8 = 21
7z = 21*8
7z = 168
z = 168/7
z = 24
There are 24 villages before the 5th son gets his share.
He gets z/8 + 5 = 24/8 + 5 = 3 + 5 = 8 villages.
------------
I'll do one more iteration
w = amount of villages left before the 4th son gets his share
w/8 + 4 = amount of villages the 4th son gets
w - (w/8+4) = 7w/8 - 4 = amount of villages left after 4th son gets his share
Set that equal to the previous value 24 and solve for w
7w/8-4 = z
7w/8-4 = 24
7w/8 = 24+4
7w/8 = 28
7w = 28*8
7w = 224
w = 224/7
w = 32
There are 32 villages before the 4th son gets his share.
He gets w/8 + 4 = 32/8 + 4 = 4 + 4 = 8 villages.
------------
The rest of the steps to find the other village counts will follow this template. You should find that each son gets 8 villages. There are 7 sons, so that means there are 7*8 = 56 villages total.
------------
It makes sense that the answer is some multiple of 8 because when taking 1/8 of the value leads to an integer. In other words, (1/8)*x is an integer.
Furthermore, it also makes sense that each son gets a multiple of 8 villages because if let's say the first son gets 9 villages (some non-multiple of 8), then 56-9 = 47 is not a multiple of 8. Plugging that into x/8+2 for the second son will lead to some non-integer result. So it's a bit nice that everything is a multiple of 8.
A stronger verification is shown in the table below. The table keeps track of how many leftover villages there are for any given son, whether its before or after they get their share. At the top we start with 56 and then slowly make our way down to 0 villages.
Help ASAP! Question 12 points)
05.02 MC
The angles below are supplementary. What is the value of x? (5 points)
5
7.5
15
30
Answer:
D
Step-by-step explanation:
supplementary means two angles that there sum will be 180. and 30 x 4 = 120 + 20 = 140 and if you add the other angle 40 that's 180.
The record time for the girls' 50-meter free style swimming competition is 24.49 seconds. Camilla has been training and wants to swim the 50-meter free style in less time. What are some possible times Camilla would have to swim to break the current record? Solve this problem any way you choose.
Answer:
[tex]x < 24.49[/tex]
Step-by-step explanation:
Given
[tex]Record = 24.49[/tex]
Required
Possible time to break the record
Since no option is given to select from. I will answer the question using inequalities
For her to break the record, she must swim at a time less than 24.49.
i.e. 24.48, 24.00, 23, 22.50, etc...
Represent the time with x.
So, the inequality is:
[tex]x < 24.49[/tex]
at the start of 2014 mikes car was worth 12000 thee value of the car decreased by 30% every year work out the value of his car at the start of 2017
Answer:
4116
Step-by-step explanation:
2014
12000÷10=1200 (10%)
1200x3=3600
12000-3600=8400
2015
8400÷10=840
840x3=2520
8400-2520=5880
2016
5880÷10=588
588x3=1764
5880-1764=4116
Hyperloop, a new model of travel, aims to reach a speed of 170 m/s. This is less than the speed of sound. What is the speed of sound?
(PLSSS I NEED THE ANSWER TO THIS ASAP TY)
:)
Answer:
The Speed of sound is 340 meters per second.
hope this helps!
If you wouldn't mind, would you be willing to give me brainliest?
Thank you and your welcome!
a supermarket has 129 crates of apples each crate holds 125 how many apples does the supermarket have
PLSSS HELP MEE SHOW UR WORK!!
Answer:
(-3, 13)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityAlgebra I
Terms/CoefficientsCoordinates (x, y)Solving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define Systems
y = -4x + 1
11y = x + 146
Step 2: Solve for x
Substitution
Substitute in y: 11(-4x + 1) = x + 146Distribute 11: -44x + 11 = x + 146[Addition Property of Equality] Add 44x on both sides: 11 = 45x + 146[Subtraction Property of Equality] Subtract 146 on both sides: -135 = 45x[Division Property of Equality] Divide 45 on both sides: -3 = xRewrite/Rearrange: x = -3Step 3: Solve for y
Define original equation: y = -4x + 1Substitute in x: y = -4(-3) + 1Multiply: y = 12 + 1Add: y = 13Melanie's car payment was $511 a month. She also paid $159 a month for insurance. How much does Melanie spend in 12 months on her car and insurance payments? Write an equation and then solve.
Answer:
$8040 spent on her car and insurance payments.
Step-by-step explanation:
511 + 159 = 670
670 times 12 = 8040
A worker spent 3/4 of his monthly salary on food and 1/2 of the remainder on rent if he has 1500 left how much does he earn in a month
Answer:
$4000
Step-by-step explanation:
1500 × 2 =3000
3000 × ³/4 = 4000
i rly rly need this its for a grade and i need help asap ! :(
Answer:
D!
Step-by-step explanation:
plugin the equation to each graph
3y=4.8 (I'm so confused it isn't even funny)
Answer:
y = 1.6
Step-by-step explanation:
4.8/3=1.6
3*1.6=4.8
Answer:
[tex]y = 1.6[/tex]
Step-by-step explanation:
[tex]3y = 4.8[/tex]
Use inverse operations to solve this problem. Inverse operations is a method of solving a linear (and in some cases quadratic) equation. This method has one do the same operations to both sides such that it cancels out the operations done to the variable, and hence, it leaves one with the solution.
In this case, all one has to do is divide both sides by the coefficient of the varibale (y).
[tex]3y = 4.8[/tex]
÷[tex]3[/tex]
[tex]y = 1.6[/tex]
mrs. washington's class has x student. Three-fourths of these students like pizza.If 21 students in the class like pizza, which equation can be solved to determine the number of students in the class?
A. 21x = 3/4
B. 21x = 4/3
C. 4/3x = 21
D.3/4x = 21
The weight of four puppys are shown in pound 9.5 9/38 9.125 9/34 which list shows these weights in order from gratest to lest
Answer: 9.5, 9.38, 9.34, 9.125
Step-by-step explanation: Decreasing numbers of value.
HELPPP MEEEEEEE
with this math
Answer:
it should be 1/8
Step-by-step explanation:
Which of the following situations can be represented by
C = 10 + 0.44n?
Your answer:
A. The total cost at the grocery store for a cake that cost $10 and n bananas that cost $0.44 each.
B. The total cost of 10 soft drinks that cost $0.44 each.
C. The height of a plant after n days that was 10 centimeters tall and it grew 4.4 milimeters a day.
D. Not here
Answer:
A and C
Step-by-step explanation:
79.2 is what percent of 110?
Answer:
72
Step-by-step explanation:
Answer:
75%
Step-by-step explanation:79.2 divided by 110 = 0.75. move the decimal two places and you get 75.