Answers
Answer:
-9x+11y=-14
x= ( 13/4 +3/8y) + 11y+-4
y=2
x=13/4 + 3/8 x 2
x=4
Step-by-step explanation:
Related Questions
What should be subtracted from -8xy + 2x^2 + 3y^2 to get x^2 + 2
Answers
Answer:
x^2 - 8xy + 3y^2 - 2
Step-by-step explanation:
(-8xy + 2x^2 + 3y^2) - unknown = x^2 + 2
- unknown = x^2 + 2 + 8xy - 2x^2 - 3y^2
- unknown = -x^2 + 8xy - 3y^2 + 2
Unknown = x^2 - 8xy + 3y^2 - 2
Check:
(-8xy + 2x^2 + 3y^2) - (x^2 - 8xy + 3y^2 - 2)
= -8xy + 2x^2 + 3y^2 - x^2 + 8xy - 3y^2 + 2
= -8xy + 8xy + 2x^2 - x^2 + 3y^2 - 3y^2 + 2
= x^2 + 2
An initial population of 30 rabbits doubles each year for 6 years what is the rabbit population after 6 years?
Answers
Answer:
1920
Step-by-step explanation:
Each time you multiply by to 6 times. 30 does not count as a year.
Sherry is driving 390 miles to visit The gateway arch in St. Louis. She drives at an average rate of 65 miles per hour. Explain how you can find the amount of time it will take Sherry to get to the arch
Answers
Answer:
t = 6 s
Step-by-step explanation:
Given that,
Sherry is driving 390 miles to visit The gateway arch in St. Louis.
She drives at an average rate of 65 miles per hour.
We need to find the amount of time it will take Sherry to get to the arch. Let the time is t.
Speed = distance/time
[tex]t=\dfrac{d}{v}\\\\t=\dfrac{390}{65}\\\\t=6\ h[/tex]
Hence, it will take 6 hours to get to the arch.
What's the difference between period and cycle in math?
Answers
harry purchased a 600$ savings bond if he has 1200 in total in the bank at the end of 10 years what was the simple interest rate
Answers
Answer:
R = 10%/year
Equation:
r = (1/t)(A/P - 1)
Solving our equation:
r = (1/10)((1200/600) - 1) = 0.1
r = 0.1
Converting r decimal to R a percentage
R = 0.1 * 100 = 10%/year
The interest rate required to get a total amount, principal plus interest, of $1,200.00 from simple interest on a principal of $600.00 over 10 years is 10% per year.
Step-by-step explanation:
so he has 600 $ saving then if he has 1,200 total in the bank
The expression (2x^2)^3 is equivalent to _____. ^this is for to remind that the 2 and 3 are exponents
a.6x2
b.6x5
c.8x6
Answers
Answer:
c
Step-by-step explanation:
(2x²)³ = 2³(x^(2×3))
=2³x⁶
=8x⁶
Someone pls help me solve this I’m having really bad anxiety!
Answers
Put your answers in the green
boxes.
Answers
Answer:
1. 2m^2-2n^2
Step-by-step explanation:
1. (m-n)(m^2+mn+n^2)
m^2=m
n^2=n
=(m-n)(m+mn+n)=(m-n)(2m2n)
Multiple
=2m^2-2n^2
I need help pls help me
−k+3k
Answers
Ashley has $9.05 in dimes and nickels. If she has a total of 108 coins, how many of each type does she have?
Answers
Answer:
[tex]73\:\mathrm{dimes},\\35\:\mathrm{nickels}[/tex]
Step-by-step explanation:
We can write the following system of equations:
[tex]\begin{cases}10d+5n=905,\\d+n=108,\\\end{cases}[/tex], where [tex]d[/tex] is the number of dimes she has and [tex]n[/tex] is the number of nickels she has.
Multiply the second equation by [tex]-5[/tex] and add both equations to solve for [tex]d[/tex]:
[tex]\begin{cases}10d+5n=905,\\-5d-5n=-540,\\\end{cases}\\5d=365,\\d=\fbox{$73$}[/tex].
Plug [tex]d=73[/tex] into any equation to solve for [tex]n[/tex]:
[tex]73+n=108, \\n=\fbox{$35$}[/tex]
There are 73 dimes and 35 nickels.
What is a system of equations?A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.
Ashley has $9.05 in dimes and nickels. If she has a total of 108 coins,
dime = 10
A nickel = 5
We can write the following system of equations;
10D + 5N = 905
N + D = 108 coins
where D is the number of dimes she has and N is the number of nickels she has.
Multiply the second equation by -5 and add both equations to solve for :
10D + 5N = 905
-5N -5 D = -540 coins
Use the Distributive Property:
Add the like terms:
5D = 365
Divide both sides by 5
D = 73
Plug D into any equation to solve for N
Nickels = 108 - 73 = 35
There are 73 dimes and 35 nickels.
Learn more about equations here;
https://brainly.com/question/10413253
#SPJ2
Write a story that could represent this math problem.
Answers
Answer:
Every year, my aunt Yannah makes 4 Pumpkin Pies for thanksgiving. She always cuts them into 8th's for all of us and for me and my family to share. This year, only 3/8 was eaten of each Pumpkin Pie. I want to know how much of the Pumpkin Pie was eaten, and if my aunt Yannah should make less pie next year?
That is the story ^
|
ANSWER: 12/8
Use the substitution to solve the system.
-4x+3y=32
y=3x+19
x=
y=
Answers
Answer:
x=-5
y=4
(-5,4)
Step-by-step explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point Form:
(−5,4)
3x-2y = 8
solve for y
Answers
Answer:
-4+3x/2
Step-by-step explanation:
answer for brainlist and extra points!! <3
Answers
Answer:
75
Step-by-step explanation:
45+(2*15)
45+30
75
Hope it helped!
Answer:
Equation: 45 + 2(x)
Answer: 45 + 2(15) = 45 + 30 = $75
Step-by-step explanation:
45: # of money she had
2: the amount of money she makes when she completes her chores
x: the number of days she completes her chores
Hope this helps!
You're planning on making 7 meatloafs for a party. You go to the store to buy breadcrumbs, and see they are sold by the canister. How many canisters do you need to buy? First, determine what information you need to answer this question, then click here to display that info (along with other info). How much breadcrumbs does the recipe call for? It calls for 1 1/4 cups of breadcrumbs. How many meatloafs does the recipe make? It makes 1 meatloaf. How many people can 1 meatloaf feed? It says it serves 8. How big is the canister? It is cylindrical, 3.5 inches across and 7 inches tall. What is the net weight of the contents of 1 canister? 15 ounces. How much does a canister cost? $2.19 How much does a cup of breadcrumbs weigh? I'm not sure, but maybe something from the nutritional label will help. Nutritional label showing the serving size is 1/3 cup (30g), and there are about 14 servings per container.
Answers
1 3/4 cups → 7/4 cups per meatloaf
7 cups/4 * 1 meatloaf * 7 meatloafs = 49/4 cups of breadcrumbs needed in total.
Now let's find out how many cups are in a canister:
1/3 * 14 = 14/3 cups (we're given 1/3 a cup is a single serving size, and each canister holds about 14 servings)
Here's the algebraic way of solving:
14/3 n ≥ 49/4, where n is the number of canisters needed. I'm using ≥ because we cannot buy only part of a canister. Multiply both sides by 3/14:
14/3 n * 3/14 ≥ 49/4 * 3/14
We can factor out a 7:
n ≥ 7/4 * 3/2
n ≥ 21/8 → 2 5/8
Rounding up, you're going to need three canisters:
28/3 (2 canisters) < 49/4 (needed) < 42/3 (3 canisters)
9 1/3 < 12 1/4 < 14
After the video game store, Larry goes to the music store online and downloads four new songs to his phone for $3.99 each. If tax is 7%, how much does he spend in all?
Answers
Answer:
Larry spends $22.96 total with the tax
I'm not sure if this is correct of not
If you paid m dollars for a meal at a restaurant. Write an expression that will represent the amount you will pay, including a 15% tip
NEED HELP ASAP
Answers
Select the correct answer.
You're given three angle measurements of 30°, 70°, and 80°.
How many triangles can you construct using these measurements?
A. 0
B. 1
C. 2
D. Infinitely many
Answers
Answer:
The answer is not 1 or 0
I think its D. infinitely many
Step-by-step explanation:
the main sailboat has the dimensions shown in figure at the right . what is the height of the main sail? Then round to the nearest tenth as needed.)
Answers
Answer:
h = 14.49 feet.
Step-by-step explanation:
From the attached figure,
Base = 14 ft
Height = h
Angle = 46°
We need to find the height of the main sail. To find it we can use trigonometry.
The relation between height, base and angle is given by :
[tex]\tan\theta=\dfrac{\text{Height}}{\text{Base}}\\\\\tan(46)=\dfrac{h}{14}\\\\h=\tan(46)\times 14\\\\h=14.49\ ft[/tex]
So, the height of the main sail is 14.49 feet.
Jasmine launches a model rocket from a cliff. The rocket goes up 16.8 feet above the cliff, then it drops 28.1 feet into the ocean below.
Answers
Answer:
1. Positive, 2. negative, 3. 16.8-(-28.1), Final answer -44.9.
Step-by-step explanation
Tryna cheat off the I-ready diagnostics huh
Answer:
The answer to this question is that 1. Positive, 2. negative, 3. 16.8-(-28.1), Final answer -44.9.
Step-by-step explanation:
Good luck :)
I WILL GIVE BRAINIEST Which statement is correct about the product of 9/10 and 7/8
Answers
Answer:
7/10 and 7/8 are both less than 1.
Step-by-step explanation:
The product must be less than either factor because when you multiply a number by less than 1, the number gets smaller.
please solve these problems
Answers
Answer:
1/3x - 2y - 5x + 8
Step-by-step explanation:
Given:
1/3x - 2y - 5x + 8
1. There are four (4) terms in the expression: 1/3x, -2y, -5x, 8
2. Like terms are terms which have the same thing in common such as 1/3x, -5x in the expression
3. A constant is a term without a variable. 8 is the constant in the expression
4. The variables in the expression are: x and y
5. The coefficients are; 1/3, -2, and -5
solve 6x+3=27 step by step
Answers
Answer:
X = 4
Step-by-step explanation:
6x + 3 = 27
Subtract the 3 from 3 and 27, you end up with 6x = 24
Divide 24 with 6
You should end up with 4
X=4
I hope this helps you out!
Which pairs are like terms in the expression below? Select all that apply.
Žy + } x-0.25 – 6 +(-2)
Ay and { x
and 1
B. žy and
y and -0.2,
C.
1/3 x
and-0.27
D. -0.2y and 2
E. -6 and -2
Answers
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mujer culona
mujer culona
mujer culona
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mujer culona
mujer culona
mujer culona
mujer culona
mujer culona
Answers
1x + 7 = 9x + 2 what is x
Answers
Answer:
5/8 or 0.625
Step-by-step explanation:
first you'll subtract 1x from the left and subtract 2 from the right
1x+7=9x+2
-1x . -1x
7=8x+2
-2 -2
5=8x
divide this by 8
5/8 or 0.625
PLZ HELP WILL MARK BRAINLEST work out both
Answers
Answer:
3*6+5= 23
Step-by-step explanation:
18+5
23
2.) 7^2-18/3
49-6
43
2y = -1x -8
rewrite each of the following equations in y= mc + b form
Answers
Answer: y=-1x-8
Step-by-step explanation:
The first step is to: Move the 'X' to the right side of the equation.
The second step is to: Divide the 'Y'
But since the 'X' is already on the right side you will just divide the 'Y'. If the 'X' was on the left then you will follow those steps that I gave you at the beginning in order to get it in the y=mx+b.
So it will look like this:
2y=-1x-8
y=-1x-8
y= -1(is the slope)x-8(is the Y-intercept)
So, if you have to graph this you will graph it starting with negative 8 as the y-intercept. Then you will go down one and over 1.
PLEASE DONT SKIP THIS I NEED HELP
Can someone please explain how to solve this problem?
Answers
Un auto A se desplaza por una carretera recta a una velocidad constante de 80 km/h otro auto B se localiza 30 km delante del auto a y se desplaza por la misma carretera a una velocidad constante de 60 km/h  ¿cuál es la regla de correspondencia de ambos autos? Y sutabla de valores?
Answers
Question in English:
Car A travels along a straight road at a constant speed of 80 km / h another car B is located 30 km in front of the car and it travels along the same road at a constant speed of 60 km / h cuál what is the rule of correspondence of both cars? And your table of values?
Plzzzzz give me Brainliest!!!!!