Step-by-step explanation:
3x+8y=27
3x=27-8y
x=27-8y/3
4(27-8y/3) + 3y=13
36-32/3y +3y =13
36-23/3y=13
36-13=23/3y
y=3
x=1
Some help pls don't answer if you don't know also I’ll give brainliest.
Answer:
Step-by-step explanation:
-44
Answer:
-44
Step-by-step explanation:
8 to the 2nd power = 64
9 x 3 = 27
27 - 64 = -37
-37 - 7 = -44
Hope I helped :)
1.86 x 10 and 1.86 x 100. I need the solving steps please
Answer: I don't know if this would be helpful, but in this case, you can really just move the decimal point to the right the amount of times you see a zero in what you are multiplying it by. 1.86 x 10 = 18.6 , 1.86 x 100 = 186
Step-by-step explanation:
Sorry if its not helpful im trying..
A plumber charges $10 for transportation and $37 per hour for repairs.
Complete the expression that can be used to find the coins in dollars for a repair that takes h hours.
An expression that can be used to find the cost in dollars for a repair that takes h hours is __________________
Answer:
10+37h
Step-by-step explanation:
10 is the flat fee so only happens once
37 is hourly rate so multiply by h (hours)
2 3/4 - 3/7
10 points
Answer:
It only gives five points.
Step-by-step explanation:
I just wanted to let you know.
Answer:
2 3/4
- 3/7
3 5/28
Step-by-step explanation:
First, Find the common denominator of 4 and 7 which is 28. 28 will be the denominator of your difference.Then, now time to multiply, now you multiply 7 by 21 because you multiplied 7 by 4 to get 28. You do the same for the others one but a bit different because this time you multiply 4 by 3= 12 now you have 21/28 and 12/28. Now you add 21 and 12 not 28 because you don't multiply denominators in this case. After that you get 33/28, this is an improper fraction so you divide. 28 goes into 33 once so you have a whole number 1 then you have 5 left over making it the numerator. Result 1 5/28, because you have the whole number 2 left from the equation you add it ending up with 3 5/8
Hope this helps :D !!
Please help due today
Answer: The answer is 740.25 of the last one
Step-by-step explanation:(Just asking is this a test because if it is then please don't do this again because the honor code and everything) All I did was 4.7*5, which is 23.5 and 6.3*5, which is 31.5 and I multiplied them and got 740.25
(If I'm wrong please tell me why also brainliest would be appreciated!)
Answer:
I would say the answer is 29.61 square ft.
Step-by-step explanation:
Sorry if I'm wrong:/
Find all solutions to the equation.
cos^2x + 2 cos x + 1 = 0
Answer:
take a picture of the problem
Help meeeeeee!!!!!! Will mark you the brainest answer
Answer:
130
Step-by-step explanation:
Answer:
it's 130 degres
Step-by-step explanation:
Simplify the following expression:
3i(4-i) + i(6+2i)
A. 18-i
B. i +18
C. 13 + i
D. i-13
Can someone help me out on this plz?
Answer:
c.) 36cm
Step-by-step explanation:
:))
whoever answers this question first gets breainly
Answer: 13,500
Step-by-step explanation:
Which of the following ordered pairs is a solution to the equation 2x+6y=6? Select all that apply.
elect all that apply:
(−6,3)
(10,4)
(−3,2)
(12,12)
(−3,−4)
need help hshhsshsnd dbd
Answer:
It would be 2/5
Step-by-step explanation:
It would originally be 8/20 but you would simplify it to 2/5.
Help on Part A and Part B ASAP pls!!
Answer:
0.625 feet
5feet/8parts
Answer:
Step-by-step explanation:
Marshall bought 20 refills and sold them at $ 4 each. If it had cost $ 50 for the refills, what was his profit or loss percent
Answer:
$30 or 60%
Step-by-step explanation:
20 ×4= 80
80-50= 30
30/50= .6 , or 60%
In 1995, there were 85 rabbits in Central Park. The population increased by 12% each year. How many rabbits
populated Central Park 21 years later?
Answer:
918
Step-by-step explanation:
Given data
Initila population= 85
Rate = 12%
TIme= 21 years
Let us apply the compounding expression
A=P(1+r)^t
substitute
A= 85(1+0.12)^21
A=85(1.12)^21
A=85*10.80
A= 918
Hence the approximate Rabbit population will be 918
What is the slope of the line shown below?
(3,9)
(-4, 2)
A. 1
B. -6
C. 6
D. -1
Answer:
a. 1
Step-by-step explanation:
2-9/-4-3
-7/-4-3
-7/-7
1
Solve the simultaneous equation 3x+2y=4 4x+5y=10
Answer:
2x=4-2y
x=(4-2y)/3
4x+5y=10
4[(4-2y)/3]+5y=10
(16-8y)/3+5y=10
(16-8y+15y)=10*3
7y=30-16=14
y=2
Step-by-step explanation:
The solution to the simultaneous equations 3x + 2y = 4 and 4x + 5y = 10 is x = 0 and y = 2.
To solve the simultaneous equations:
Equation 1: 3x + 2y = 4
Equation 2: 4x + 5y = 10
We can solve this system of equations using the method of substitution or elimination.
Step 1: Multiply Equation 1 by 4 and Equation 2 by 3 to make the coefficients of x in both equations the same:
Equation 1 (multiplied by 4): 12x + 8y = 16
Equation 2 (multiplied by 3): 12x + 15y = 30
Step 2: Subtract Equation 1 from Equation 2 to eliminate x:
(12x + 15y) - (12x + 8y) = 30 - 16
12x - 12x + 15y - 8y = 14
7y = 14
y = 14 / 7
y = 2
Step 3: Substitute the value of y into either equation to solve for x. Let's substitute it into Equation 1:
3x + 2(2) = 4
3x + 4 = 4
3x = 4 - 4
3x = 0
x = 0 / 3
x = 0
Therefore, the solution to the simultaneous equations 3x + 2y = 4 and 4x + 5y = 10 is x = 0 and y = 2.
To know more about equations click here :
https://brainly.com/question/23864781
#SPJ2
Round the nearest indicated place.
1.0.326 (Hundredths)
2. 3.6793 (thousandths)
3. 63.438 (hundredths)
4. 7.4684 (thousandths)
5. 0.8931 (tenths)
Answer:
1 0.33
2 3.679
3. 63.44
4 7.468
5 0.9
Answer:
1. 0.33
2. 3.679
3. 63.44
4. 7.468
5. 0.9
helpppppppppppp plzzzzzzzz
Its been awhile but i think its y=0x+5
how can you tell if a linear equation is proportional?
Answer:
If the line goes through the origin, (0,0), that means the linear equation is proportional, if it doesn't go through the origin, the equation isn't proportional.
You can also tell if a linear equation is proportional if the equation has an constant after the x (for example y=2x+6)
How much interest will be earned in a bank account with £3850 that pays 1.3% interest each year how much will there be after 6 years
Answer:
Results are below
Step-by-step explanation:
Giving the following information:
Initial investment (PV)= £3,850
Number of periods (n)= 6 years
Interst rate (i)= 1.3% = 0.013
First, we will calculate the future value (FV), by using the following formula:
FV= PV*(1+i)^n
FV= 3,850*(1.013^6)
FV= £4,160.23
Now, by difference, the interest earned:
Interest earned= 4,160.23 - 3,850= £310.23
PIZZA At the concession stand, a slice of cheese pizza costs $1.75 and a slice of pepperoni costs $2.20. How much more does a
slice of pepperoni cost than a slice of cheese?
Answer:
45 cents
Step-by-step explanation:
2.20-1.75=0.45
Answer:
$0.45
Step-by-step explanation:
Cheese Pizza : $1.75
Pepperoni Pizza : $2.20
2.20 - 1.75 = 0.45
Pepperoni Pizza cost $0.45 more than Cheese Pizza!
Hope this helps!!~~ <3
Mason plays a game by flipping two fair coins. He wins the game if both coins land facing heads up. If Mason plays 300 times, how many times should he expect to win? Enter your answer in the box.
ANSWER ASAP !!!!!!!!!!!
WILLGIVE BRAINLIEST :)
A corner store sells two kinds of baked goods: cakes and pies. A cake costs $15 and a pie costs $13. In one
day, the store sold 9 baked goods for a total of $121. How many cakes did they sell?
a. 8 cakes
c. 7 cakes
b. 2 cakes
d. 4 cakes
Answer:
a. 8
Step-by-step explanation: Out of 12 baked goods sold , let the number of cakes sold, be x in number and pies sold were 12 − x in number. Total sell was $ 144 , 1 cake costs $ 14 and 1 pie costs, $ 8 ∴ 14 ⋅ x + ( 12 − x ) ⋅ 8 = 144 or 14 x − 8 x = 144 − 96 or 6 x = 48 ∴ x = 8
If Charlie had 100 million followers and lost 15 million for v****g how much follower does she have now
Answer:
85000000
Step-by-step explanation:
it's easy so simple
Help? which one should I choose
Answer:
true
Step-by-step explanation:
For 3 sides to be able to form a triangle, we need to check that the 2 shorter sides can "touch" when "stemming" out of the long side.
The long side has length 7cm, so the sum of 2 shorter sides must be bigger than 7cm for them to "touch". Note: if the sum was 7cm, the only way they would touch is if they were laid along the long side, so it would not be a triangle - it would be a segment.
Fortunately, 3cm + 5cm > 7cm, so we can form a triangle.
A wheelchair ramp is 6.3 meters long. It rises up 0.9 meter. What is the angle of
elevation to the nearest tenth of a degree?
Which expression describes the nth term of the arithmetic sequence 5, 9, 13, 17, ...?
Answer:
4n + 1
Step-by-step explanation:
The first term is 5.
Each new term is 4 plus the previous term.
Term 1 = 5
Term 2 = 5 + 4
Term 3 = 5 + 4 + 4
Term 4 = 5 + 4 + 4 + 4
Notice that for each new term, you add one 4 less than the number of the term.
In term 1, you have 5 and no 4 added.
In term 2, you add one 4 to the 5.
In term 3, you add two 4's to the 5.
In term n, you add (n - 1) 4's to the 5.
Term n = 5 + (n - 1)4
Term n = 5 + 4n - 4
Term n = 4n + 1
Answer: 4n + 1
Is the number below
rational or irrational?
Square root of V16
pls I need it asap it's due in 5 minutes. with steps pls
Answer:
Solution → (2, -1)
Step-by-step explanation:
Input-output values table for equation (1),
2x + y = 3
x -1 0 1 2
y 5 3 1 -1
Input-output values table for equation (2),
y = x - 3
x -1 0 1 2
y -4 -3 -2 -1
Now plot these points to get the graphs of both the equations.
Common point (2, -1) of both the lines will be the solution of the system of equations.