Answers
Answer:
x=-1 y=3
Step-by-step explanation:
so next the equation equal so
-8X+3y=17
+8x+9y=19
make it so that the first equation y can eliminate second equation y
sorry ghee too lazy to type working out
Related Questions
factor -45x^3-60x^2-20x
Answers
Answer:
-5x(3x+2)²Step-by-step explanation:
Factoring the given expression:
-45x³ - 60x² - 20x = -5x(9x² + 12x + 4) = -5x(9x² + 6x + 6x + 4) = -5x(3x(3x + 2) + 2(3x + 2))-5x(3x + 2)(3x + 2) or -5x(3x+2)²Answer:
−5x(3x+2)^2
Step-by-step explanation:
-45x^3-60x^2-20x
Factor out 5.
5(−9x^3-12x^2-4x)
Consider −9x^3-12x^2-4x. Factor out x.
x(−9x^2−12x−4)
Consider −9x^2−12x−4 Factor the expression by grouping. First, the expression needs to be rewritten as −9x^2+ax+bx−4. To find a and b, set up a system to be solved.
a+b=−12
ab=−9(−4)=36
Since ab is positive, a and b have the same sign. Since a+b is negative, a and b are both negative. List all such integer pairs that give product 36.
−1,−36
−2,−18
−3,−12
−4,−9
−6,−6
Calculate the sum for each pair.
−1−36=−37
−2−18=−20
−3−12=−15
−4−9=−13
−6−6=−12
The solution is the pair that gives sum −12.
a=−6
b=−6
Rewrite −9x^2−12x−4 as (−9x^2−6x)+(−6x−4).
(−9x^2−6x)+(−6x−4)
Factor out −3x in the first and −2 in the second group.
−3x(3x+2)−2(3x+2)
Factor out the common term 3x+2 by using distributive property.
(3x+2)(−3x−2)
Rewrite the complete factored expression.
5x(3x+2)(−3x−2)
In the number 222, how many times larger is the value of the digit in the tens place than the value of the digit in the ones place?
Answers
Answer:
hi to everyone for me and the kitchen and
Jomaya has $15. She saves $2 every day. How many days will it take Jomaya to save $25?
Answers
Answer: 12.5
Step-by-step explanation: 2times 12.5 is 25
Answer:
5 days
Step-by-step explanation:
To find out this question, we can subtract the amount she wants to get, 25, by the amount she has, 15:
25 - 15 = 10
So, Jomaya wants to save up $10, and because she saves $2 every day, we can divide:
10 / 2 = 5
So, it will take Jomaya 5 days to save $25
Hope this helps :)
Elaina charged $83 on her credit card to buy groceries. If the
balance is now $294, what was the balance before she bought
groceries?
Answers
Answer:
211?
Step-by-step explanation:
I'm not sure if this is correct, but:
294-83=211.
Hope this helps! :)
The balance before she bought the groceries was $277.
What are mathematical operations?In mathematics, an operation is a function which takes zero or more input values (also called "operands" or "arguments") to a well-defined output value.There are five fundamental operations in mathematics: addition, subtraction, multiplication, division, and modular formsGiven is that Elaina charged $83 on her credit card to buy groceries. The balance is now $294.
The balance before she bought the groceries is -
294 + 83
277
Therefore, the balance before she bought the groceries was $277.
To solve more questions on addition, visit the link below -
https://brainly.com/question/29207465
#SPJ2
WILL GIVE BRAINLIEST
Answers
Answer:
9
Step-by-step explanation:
Answer:
-1.8
Step-by-step explanation:
-9 divided by 5= -1.8
Hope this helps!! Please mark brainlliest. :) :)
Help meeeeeeee! I will give brainly just do it soon!
Answers
Answer:
x=25
Step-by-step explanation:
hope this is correct!
Karen has 12 items in her suitcase. Which is the most reasonable prediction for the total weight of her suitcase?
Answers
Answer:
12345t6yui
Step-by-step explanation:
A sweatshirt was on sale for 20% off. The original
price was $24. What is the sale price of the sweatshirt?
Answers
Answer:
$19.20
Step-by-step explanation:
20% of 24 is 4.8.
24-4.8=19.2
Answer:
19.20
Step-by-step explanation:
20% of 24 is 4.8.
24-4.8=19.2
7. The least of three consecutive positive integers is x. The sum of the three
integers is 60. The statement given above expressed as an equation is
Answers
Answer:
no. of consecutive integers--- X, X+1, X+2.
there sum is 60
X+X+1+X+2=60
3X+3=60
X+1=20
X=19
integers are=19, 20, 21
how would I do this?
Answers
Answer:
umm
Step-by-step explanation:
1/5 x 100 = 20
Answer = 20%
2) 10/100 as a percentage:
(This is already over 100 so the answer would just be 10%)
3) 1/100 as a percentage:
(Again, this is already over 100 so the answer would just be 1%)
4) 2/5 as a percentage:
2/5 x 100 = 40
Answer = 40%
5) 3/5 as a percentage
3/5 x 100 = 60
Answer = 60%
6) 4/5 as a percentage
4/5 x 100 = 80
Answer = 80%
7) 1/2 as a percentage
1/2 x 100 = 50
Answer = 50%
8) 5/100 as a percentage
(This is already over 100 so the answer would just be 5%)
9) 3/4 as a percentage
3/4 x 100 = 75
Answer = 75%
10) 3/10 as a percentage
3/10 x 100 = 30
Answer = 30%
11) 2/3 as a percentage
2/3 x 100 = 66.6666
Round it to the nearest whole number or decimal
Answer = 66.7%
12) 1/3 as a percentage:
1/3 x 100 = 33.33333
Round it to the nearest whole number or decimal
Answer = 33.3%
Basically just multiply the fraction by 100 each time to get your answer
If you make 20 dollars a week how many weeks will it take you to reach the goal of 900 dollars.
Answers
Answer:
45 weeks
Step-by-step explanation:
20 dollars per week *week = goal
900/20 = 45
meaning 45 weeks
Answer:
45 weeks
Step-by-step explanation:
900÷20=45
so it will take 45 weeks
Deshaun decides to find out what snack food students like at her middle
school. What should she do to get the most accurate information? *
O ask her friends
take a survey among the girls in her class
take a survey among students in each grade
O find out what was ordered last year
Answers
Answer:
take a survey because if she gets what they got last year its diffrent peope. noe
Does anyone know the answer?
Answers
Answer:
sis 3rd option is correct
A scuba diver descends 80 feet, rises 25 feet, descends 12 feet, and then rises 52 feet where he will do a safety stop for five minutes before surfacing. At what depth did he do his safety stop?
Answers
Answer:
15 ft
Step-by-step explanation:
At 15 feet below the surface, the scuba diver did his safety stop.
What is the surface?The surface is the common region between two different mediums. Here in the question surface is the common region between seawater and above seawater.
Let us denote the values of descending by negative sign and rising by positive sign and we sum up all the values together.
∴ [ - 80 + 25 + (-12) + 52 ] feet.
= (-80 + 25 - 12 + 52) feet.
= - 15 feet.
So, at 15 feet below the surface the scuba diver dis his safety stop.
learn more about surface here :
https://brainly.com/question/8158833
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Whats a decimal in tenths that is less than 2.4 but greater than 2.0
Answers
Answer:
If your looking for 2.4 - 2.0 just see what numbers are between them 2.1 2.2 and 2.3
Step-by-step explanation:
Answer:
2.3 or 2.2 or 2.1
Step-by-step explanation:
Factor the expression completely.
24x-56
Answers
Answer: -1344
Step-by-step explanation:
Multiple: 24 * (-56) = -1344
if the ratio of two numbers is 2;3 and their G.C.F is 8 what is their L.C.M
Answers
Expert Answer:
Since the numbers are in the ratio 3:4 then let the numbers be 3x and 4x.
Thus the H.C.F. of the two numbers = x.
But the H.C.F is given as 4.
So, x = 4.
So, the numbers are,I
3x = 3 x 4 =12
And
4x = 4 x 4 = 16
We know,
H.C.F x L.C.M = Product of the two numbers
4 x L.C.M = 12 x 16
L.C.M = 48
Thus, the L.C.M of 12 and 16 , 48
Question 7 of 10
What is the length of BC in the right triangle below?
Answers
Answer:
A
Step-by-step explanation:
Using Pythagoras' identity in the right triangle.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
BC² = 9² + 12² = 81 + 144 = 225 ( take the square root of both sides )
BC = [tex]\sqrt{225}[/tex] = 15 → A
Answer:
A
Step-by-step explanation:
What dose the mean
Because I don't get it
Answers
Answer:
On the coordnite grid the y axis use rise over run
You go up 1 spaces and go across 3 spaces
If you still dont get it use algebra calculator sit.e
Step-by-step explanation
Below is a set of data about temperatures. The range of a set of data is the distance between the lowest and highest value in the set. What is the range of these temperatures
9∘C
3∘C
22∘C
-5∘C
11∘C
15∘C
Answers
For the expression 2 x squared + 28 x + 93 Over (x + 6) cubed, which sum represents the correct form of the partial fraction decomposition?
Answers
Answer:
Option-3
Step-by-step explanation:
got-it-lol
also-keyboard-broke:(
Solve for x:
Solve for y:
Answers
Answer:
x = 12
y = -2
Step-by-step explanation:
In a parallelogram, the sides opposite each other are equal.
Hence: PQ = SR and PS = QR
2x + 12 = 4x - 12
Rearrange to make x's on one side and the numbers on the other
4x - 2x = 12 + 12
2x = 24
x = 12
____________
y + 25 = 6y + 35
Rearrange to make y's on one side and the numbers on the other
6y - y = 25 - 35
5y = -10
y = -2
PLEASE ANSWER ASAP !!!
Answers
Answer:
( -5.5 , -5 ) !!
Step-by-step explanation:
If you were to use the equation to find midpoint, u'd end up with this !! I wrote down my work, so I can add it unless with another picture, but I really hope this helped !!!
please solve thanks lovee
Answers
Answer:
m∠1 = 93.5°
Step-by-step explanation:
By theorem of intersecting chords inside a circle,
If two chords intersect inside a circle, angle formed between the chords measure half the sum of the measures of the intercepted arcs.
m∠1 = [tex]\frac{1}{2}(92+95)[/tex]
= [tex]\frac{187}{2}[/tex]
= 93.5°
Therefore, measure of angle 1 is 93.5°.
A food pantry is making packages. Each package weighs 64 pounds.
Here are two situations. For each situation, write and solve an equation to represent the situation, then explain what your solution means in the situation. If you get stuck, try drawing a diagram. (upload your work when complete)
1.Each package contains 4 boxes. Each box contains a 7-pound bag of beans and a bag of rice.
2.The bags of rice are all identical. Each package contains 4 identical bags of rice and a 7-pound bag of beans.
Please i rly need this!!!!!!!!!
Answers
Answer:
1) x = 14.25 2) 9
Step-by-step explanation:
1) 1 Package = 4 boxes
1 Box = 7 pounds of beans
Your equation should be 4x + 7 = 64...
because 64 is the total pounds that each package weigh! 4 becomes a a variable; 4x because it has the word "each" in it. Mostly likely, when you see "each" that number becomes a variable. 7 is a just an number you have to add to the equation.
Solve!
4x + 7 = 64
- 7 - 7 Subtract 7 from both sides
4x = 57
4x / 4 = 57 / 4 Divide 4 from both sides
x = 14.25
2) 9
Which factors cause air masses to move in the United States? Check all that apply.
prevailing easterlies
prevailing westerlies
jet stream
trade winds
front
Answers
Answer:
B and C
Step-by-step explanation:
Answer:
answer in picture
Step-by-step explanation:
There are 20 apples. Divide the
the ratio
3:4:5
in
apples
Answers
Answer:
sorry kailangan ko lang maka score
1/9 + -5/9 PLEASE HELP
Answers
Answer:
-4/9
Step-by-step explanation:
In a season a soccer team won 13 games, lost 8 games, and tied 1 game. What is the ratio of games won to games lost? Write your ratio using a colon.
Answers
Answer:
13:8
is the answer because if you take the games won and lost this is what you get
Step-by-step explanation:
What is the value of x in the figure below
Answers
Answer:
x=9
Step-by-step explanation:
3x+9=35
3x+9-9=35-9
3x=27
3x/3=27/3
x=9
Answer:
Step-by-step explanation:
3x+8 = 35
3x = 27
x = 9°
