x=2y-4
7x+5y=-66
what is the x- value
Answer:
x = -8
Step-by-step explanation:
x = 2y - 4 --- Equation 1
7x + 5y = -66 --- Equation 2
I will be using the substitution method to solve this.
Substitute x = 2y - 4 into Equation 2:
7x + 5y = -66
7(2y - 4) + 5y = -66
Evaluate.
14y - 28 + 5y = -66
Evaluate like terms.
19y - 28 = -66
Isolate 19y.
19y = -66 + 28
= -38
Find y.
y = -38 ÷ 19
y = -2 --- Equation 3
Substitute y = -2 into Equation 1:
x = 2y - 4
x = 2(-2) - 4
Evaluate.
x = -4 - 4
x = -8
Justina spent $2.50 on a keychain. This amount was of the total amount of money she 8 1had. How much money did Justina have?
Answer:
Amount she has now = $5.5
Step-by-step explanation:
Given:
Amount of Money had = $8
Money spent = $2.50
Find:
Amount she has now
Computation:
Amount she has now = Amount of Money had - Money spent
Amount she has now = $8 - $2.50
Amount she has now = $5.5
esto es para mi amor aniyah por favor si no eres ella no respondas ... bebé te juro que no es así como quiero que me tienes enamorado ...
tan profundo en mis sentimientos ...
hasta ese punto donde el psin se hizo cargo ...
tengo miedo de amar
Tengo miedo de romperme ...
No quiero monja, así que dije que todo era falso ...
pero te prometo que no lo estaba ...
Lo siento..
Tuve que soltarme antes de que me uniera.
Eres muy hermosa ...
eres tan cariñoso amoroso ...
eres una maldita reina ...
No quería lastimarte pero sabía lo que estaba haciendo ...
Sabía que te estaría causando más dolor si me quedaba, no me conoces todo y realmente no quiero que lo hagas, por eso no me meteré en nada real, pero si me necesitas como amigo te prometo que te tengo mi amor a través de lo que sea necesitas....
Si no estás de humor, te ayudaré a superarlo, pero no puedo hacer nada serio y lo siento bebé, pero no dejaré que te rompas de nuevo ... te amo mamás
pie = she left you x=63 y=3728
Answer:
I love you too Drizz...
Step-by-step explanation:
♡
There are 12 yards of fabric. Each pillow uses 2/3 yard. How many pillows can be made?
Answer:
18 pillows
Step-by-step explanation:
12 yards of fabric divided by 2/3 is 18. Therefore, 18 pillows at an be made.
Hope this helps :)
Patsy has cheerleading practice every fourth day. She wants to be in the school play but they have practice every sixth day
Answer:
iesjfsoifjoddfdfgfd
Step-by-step explanation:
Can somebody help me??
Answer:
yes it does
pls give brainly
Step-by-step explanation:
Answer:
Yes the table shows a proportinal relationship
Step-by-step explanation:
1:24
2:48
3:72
4:96
24 divided by 1 is 24
48 divided by 2 is 24
72 divided by 3 is 24
96 divided by 4 is 24
What is the greatest common factor of 15 and 51
Answer:
3
Step-by-step explanation:
You can find the factors 15 and 51, and see what numbers they have in common.
51 = 1, 3, 17, 51
15 = 1, 3, 5, 15
If you look at it, the two numbers they have in common are 1 and 3. But the greatest out of the two is 3.
Answer: The greatest common factor (GCF) of 15 and 51 is 3
Hope this helps! :)
Select all that apply.
Find the principal.
Annual rate of interest
=8%Period =5 years
Total interest = 2900 rupees
Answer:
7,250.
Step-by-step explanation:
7.
What is the measure of the indicated angle?
Answer:
72°
Step-by-step explanation:
→ Remember the fact that co-interior angles add up to 180° ∴ 180 - 108 = 72
How can you use a multiplication table to find 16 divide 4
Answer:
16 right 4 down
Step-by-step explanation:
Answer: You put 4 squares and and 4 dots in each square .
Step-by-step explanation: Thats the answer mark me brainliest plz! Thx
y is greater than two less than the product of x and three.
what would the equation look like?
Answer:
y > 2 < x · 3
Step-by-step explanation:
Haley is selling chocolate bars for her soccer team. Haley's goal is to sell all the
chocolate bars. She has sold 36 chocolate bars so far, which is 40% of her goal. How
many total chocolate bars does Haley hope to sell to reach her goal?
Answer:
90
Step-by-step explanation:
Linear equations
3(−5x+4)+5x−1=−39
Please help
Answer:
Step-by-step explanation:
3(-5x+4)+5x-1=-39
-15x+12+5x-1=-39
-10x+11=-39
-11 -11
-10x=-50
-10x/-10 -50/-10
x=5
could you awnser this please
what is 2+42 2+2 4+4 23+23
Answer:
it 102
Step-by-step explanation:
I hope it works
Lesson 5.3: Rational
2.
Jill is filling a water trough for her horse. Using pump A, the trough is filled up in half an
hour. Using pump B, the trough is filled up in three quarters of an hour. How long does it
take to fill the trough using both pumps?
Answer:
It will take 18 minutes to fill the trough using both pumps.
Step-by-step explanation:
Given that:
Time taken by pump A = half hour = 30 minutes
Time taken by pump B = three quarters of an hour
One quarter = [tex]\frac{1}{4}[/tex]
One hour = 60 minutes
Three quarters of an hour = [tex]\frac{3}{4}*60[/tex] = 45 minutes
Let,
x be the time taken by both pumps to fill the trough.
[tex]\frac{1}{time\ taken\ by\ pump\ A}+\frac{1}{time\ taken\ by\ pump\ B}=\frac{1}{Time\ taken\ by\ both\ pumps}[/tex]
[tex]\frac{1}{30}+\frac{1}{45}=\frac{1}{x}\\\\\frac{3+2}{90}=\frac{1}{x}\\\\\frac{5}{90}=\frac{1}{x}\\\\\frac{1}{18}=\frac{1}{x}\\x=18[/tex]
Hence,
It will take 18 minutes to fill the trough using both pumps.
− 3 ( p + 2 ) = − 30 − 3(p + 2) = − 30
Answer: y=Mx+b
Step-by-step explanation:
G
Jasmine has taken an online boating course safety course and now completing her end-of-course exam . As she answers each question , the progress bar at the bottom of the screen shows what portion of the test she has finished. She has just completed Question 16 and the progress bar shows she is 20% complete. How many total questions are on the test ?
Answer:
80
Step-by-step explanation:
20 percent is 16 questions
then 100/20=5
5 times 16 is 80
Jassie put 3,200 into a savings account that cam 3.5% annual com pound interest If she makes no other deposits withdrawals, what will her balance be ofter 12 year?
Answer:
Step-by-step explanation:
r = 35 / ( 3200 × 12 ) = 0.00091146
r = 0.00091146
converting r decimal to a percentage
R = 0.00091146 * 100 = 0.0911%/year
The interest rate required solve for the simple interest of $ 35.00
from a principal of $ 3,200.00
over 12 years is 0.0911% per year.
-3х + 4 = -8
Can any of y’all help me I’m supposed to solve for x
Answer:
x = 4
Step-by-step explanation:
-3x+4=-8
-4 -4
-3x = -12
/-3 /-3
x = 4
If person a and person b go fishing and both catch fish. If person a gives half their fish to person b and then they have equal amounts. How many fish does each have
Answer:
The number of fishes person b initially has is 0
The number of fishes person a initially has is x, where x is any natural number
Step-by-step explanation:
The given parameters are;
let x represent the number of fish person a catches and let y represent the number of fishes that person b catches, we have;
x - x/2 = y + x/2
2·x - x = 2·y + x
2·x = 2·y + 2·x
∴ y = 0
Therefore;
The number of fishes person b initially has = 0
The number of fishes person a initially has = x, where x is any natural number.
The Positions of Abuja (Nigeria) and Bonn (Germany) to the Nearest degree are (9°N,7°E)and (51°N,7°E) respectively.(use R=6400km to calculate their distance apart to 2s.f)
Answer:
4656.46km
Step-by-step explanation:
Given that:
Abuja (Nigeria) = (9°N,7°E)
Bonn (Germany) = (51°N,7°E)
Longitudinal difference = 51 - 9 = 42°
Radius of the earth (R) = 6400
Distance = θ/360 * 2πr
r = Rcos7° = 6400 * cos7 = 6352.2953
Hence,
Distance = (42/360) * 2 * 3.142 * 6352.2953
Distance = 0.1166666 * 2 * 3.142 * 6352.2953
Distance = 4656.4757 km
Find the total amount in the compound interest account 1000 is compounded annually at a rate of 11% for 7 years round to the nearest cent
Answer:
The answer is 400
Step-by-step explanation:
For every 4 girls that preferred a lighter shade of blue jeans, 3 girls preferred a darker shade. If a total of 210 girls were surveyed, how many chose the lighter shade? Justify your reasoning by applying relevant strategies to solve the problem.
Answer:
120 girls chose the lighter shade
Step-by-step explanation:
For every 4 girls that preferred a lighter shade of blue jeans, 3 girls preferred a darker shade.
This question has to do with ratio and proportions.
For every 4 girls that preferred a lighter shade of blue jeans, 3 girls preferred a darker shade.
We have a ratio of Lighter shade to darker shade
Lighter shade: Darker shade
= 4:3
Sum of proportions = 4 + 3 = 7
Total number surveyed = 210
If a total of 210 girls were surveyed, how many chose the lighter shade?
This is calculated as:
4/7 × 210 girls
= 120 girls
Therefore, 120 girls chose the lighter shade
what's the slope of y=-x+3
Answer:
-1/1
Step-by-step explanation:
There are 14 teams in a basketball league.
Each team plays every other team twice
during the season.
a) Suppose that you want to determine
how many games, in total, are played.
Suggest a simpler problem that you
could solve first.
b) How many games, in total, are played
during the season?
Answer:
Step-by-step explanation:
Given that :
Number of teams = 14
Each team plays every other team twice ;
Using the combination formula :
nCr = n! ÷ (n-r)! r!
14C2 = 14! ÷ (14 - 2)! 2!
14C2 = 14! ÷ (12)! 2!
14C2 = (14 * 13) ÷ 2 * 1
14C2 = 182 / 2
14C2 = 91
Hence, since they are going to be playing each other twice :
2(14C2)
2 * 91 = 182games
Complete this statement : 12x^ 4 a+8x^ 2 a^ 2 =4x^ 2 a()
Answer:
We have ;
4x^2a( 3x^2 + 2a)
Step-by-step explanation:
Here, we want to factorize the given polynomial
12x^4a + 8x^2a^2
Factoring out 4x^2a ; we have
4x^2a ( 3x^2 + 2a)
Are these triangles congruent? If yes by what postulate?
Plzzz i need help!!!
Answer:
thank for the points bro
Step-by-step explanation:
heh
2. Sara's apple pie recipe calls for 7 apples. She bought 20 apples when she went to the store. What percent of the apples will she use for the pie?
