Answer:
Step-by-step explanation:
1. x+2y=6 or x=6-2y
3x-2y=2
3(6-2y)-2y=2
18-6y-2y=2
18-8y=2
-8y=-18+2
-8y=-16
y=-16/-8
y=2 ans.
x+2*2=6
x+4=6
x=6-4=2 ans.
Proof:
3*2-2*2=2
6-4=2
2=2
I leave the rest for you to practice with.
3. 4x+y=7
2x+5y=-1
5. 3x+2y=-2
6x-y=6
Solve the system using the elimination method. Show all your steps.
7. -3x+3y=3
3x+y=9 add.
---------------------------------
4y=12
y=12/4
y=3 ans.
3x+3=9
3x=9-3
3x=6
x=6/3
x=2 ans.
Proof:
-3*2+3*3=3
-6+9=3
3=3
I'll leave the rest for practice.
9. -5x+12y=20
x-2y=-6
11. 3x+2y=1
4x+ 6y= 7
PLEASE HELP IM BEING TIMED! I WILL GIVE BRAINLIEST
Answer:
21
Step-by-step explanation:
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Answer:
6
7
3
52.5
Step-by-step explanation:
help quick please please
Answer:
57.5
formula
A= (a+b/2)h
i need help pleaseee
Answer:
The answer is option B.
Step-by-step explanation:
Please help! sort the equations by whether they are polynomial or not (picture attached)
Answer:
The ones with the square root and fractions are not polynomials and the one with the negative powers and the x^2+3x^5-6x+12x^3 are not polynomials. The rest are.
Step-by-step explanation:
If this has helped you, please mark brainliest. I can explain if you want, let me know in comments.
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
Answer:
1. -12 = 12
2. 34 = -34
3. 0 = -0
4. 7 < -8
5. -2 > -4
6. 4 > 0
7. 1 > -1
8. -5 < -2
9. -6 < -3 < -2 < 0
10. -5 < -1 < 2 < 8
11. a. Sapporo, Moscow, Bangor, Barrow
A customer must be no more than 12 years old to order from the kids’ menu at a restaurant.
Which number line below represents a, the age of a customer who can order from the kids’ menu?
Answer: I am not a big fan of this app but it has been crashing since I downloaded the update so it could have a little bit of an issue.
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
answer this pls
equation 9(2j + 5j).
use mathematical properties to create two expressions that are equivalent to the expression you created
If a circular swimming pool is 20 yards across, how big would a pool cover have to be to sit exactly over the surface of the water? (Assume 3.14)
A.31.4 yds
B.3140 yds
C.314 yds
D.40 yds
Can someone plssss help?
Answer: Part B is D. Account 4, Part C is D. Accounts 1, 3, and 5.
help wit 3 and 4 for brainliest
Answer:
Answer for num.4 is B
For number 3 the the rate of change for function A is 10
The rate of change for function B is -5
and the highest function is Function A!
Have a great day!!! < 3
Step-by-step explanation:
I need help also I did not mean to click c so that might not be the answer so please don't put c as your answer unless you are certain that c is the answer.
Answer:
D. (43 +60) +40
Step-by-step explanation:
The purpose of changing the grouping in addition problems is to simplify the mental effort required as much as possible. This will generally mean grouping ...
"complementary" numbers, numbers with the same number of leading or trailing zeros, numbers with the same sign, and fractions with the same denominator.AnalysisA. Numbers ending in 0 are already grouped; no change is needed.
B. Fractions with the same denominator are already grouped; no change is needed.
C. Numbers with the same (negative) sign are already grouped; no change is needed.
D. Numbers ending in zero could be grouped to make addition easier:
43 +(60 +40) . . . . regrouping would be useful
We also note that in A and D, the sum of numbers ending in zero is 100, so these numbers are "complements" of each other. This is another reason for grouping them together.
The pyramid below has a volume of 240 cm3 and a height of 4 cm. What is the area of the base?
B = 60 cm2
B = 2880 cm2
B = 240 cm2
B = 180 cm2
In 24 weeks Amanda earned $4,924 selling cars. She earns the same amount of money each week. Let “n” stand for the amount she earned each week. How much money does Amanda earn in one week?
explain how you got your answer 9basically put the work in the explanation
Answer:
Let's assume that Amanda earns the same amount of money each week, and we'll represent that amount as "n".
We are given that in 24 weeks, Amanda earned a total of $4,924. We can set up an equation to represent this information:
Total earnings = Amount earned per week * Number of weeks
$4,924 = n * 24
To find the amount Amanda earns in one week, we need to solve for "n". We can do this by dividing both sides of the equation by 24:
$4,924 / 24 = n
To calculate this, we can use a calculator or perform long division:
n ≈ $205.17
Therefore, Amanda earns approximately $205.17 in one week.
Step-by-step explanation:
3/5 x 10 in simplest form
Anwser Key: 6 3/5
35/5
6
6 1/5
Answer:
6
Step-by-step explanation:
i need help asap plsss
Radius = 5 cm
Height = 8 cm
Volume = πr²h
Volume = π(5 cm)² × 8 cm
Volume = π × 25 cm² × 8 cm
Volume = 200π cm³
What is the angle of GHD?
Does anyone know this stuff if you do pls help me
Find an ordered pair , x y that is a solution to the equation. 5x-y=9
Answer:
(1, -4)
Step-by-step explanation:
In order to find a solution to a linear equation, we can substitute any value for one variable, simplify the equation, and find the value of the other variable to find a solution that is an ordered pair.
Since any value for either variable will do, we can choose something simple, such as 1. I chose to substitute 1 for x into the equation, as seen below.
[tex]5x-y = 9\\5(1)-y = 9[/tex]
Now, all I need to do is solve and isolate y:
[tex]5(1)-y = 9\\5-y = 9\\-y = 4\\y =-4[/tex]
So, with this linear equation, when x equals 1, y equals -4. Thus, a solution to the equation is (1, -4).
Write the equation of the line in slope-intercept form using y=mx+b
Answer:
y=-5x
Step-by-step explanation:
m is the slope (rise/run)
b is the y-intercept!!!
Answer:
y=-5x
I'm assuming this is right because I got the same thing as the other guy and you all thanked him/her XD
-1/2+-5/6 thank you
Answer:
-1 1/3 hope this helps
Step-by-step explanation:
please put an explanation pleaseeeeeeeeeeeee
Answer:
d
Step-by-step explanation:
Please help I suck at math and don’t pay attention
3/5/20 Previous Balance - $2,200.25
3/6/20 ATM withdrawal - $50.00
3/10/20 Groceries (debit card purchase Dinky’s Supermarket) - $115.25
3/13/20 Electric Bill (write a check to Electropolis Electric Company) - $19.55
3/15/20 Rent (write a check to Duckworth Apts. Inc.) - $675.00
3/17/20 Car Insurance (write a check to States Insurance) - $125.00
3/18/20 Cleaning supplies (debit card purchase) - $11.40
3/18/20 Cable/Internet bill (write a check to Infinity Cable) – $50.53
3/20/20 Paycheck - $1,500.00
3/21/20 Charitable Donation (write a check to Help the Children Fund) - $35.00
3/22/20 Insurance co-pay (write a check to Dr. Hipbone) – $20.00
3/23/20 VOID check number 1026- Pumpkin Gas Station does not accept checks
3/23/20 Gasoline (debit card purchase for Pumpkin Gas Station) - $27.67
3/24/20 Haircut (debit card purchase for Pink and Blue Hair Salon) - $45.00
3/24/20 Birthday gift from Aunt Hortense - $40.00
3/27/20 Groceries (debit card purchase Dinky’s Supermarket) - $79.55
3/29/20 ATM withdrawal - $75.00
3/31/20 Gym Dues (write a check to Super Pump Gym) - $22.00
3) Who is the payee of the first check?
4)What was the amount of the check?
5) What was the check for?
6)What is the routing number on the check?
7) What is Jessie’s bank account number?
8) Fill out the next five checks as indicated above with the checks provided. Be sure to complete all the information including the memo.
9)Jessie Robinson’s check register does not match with her bank statement. There are three discrepancies. Indicate what are the discrepancies?
10)What is Jessie Robinson’s checking account balance?
11)Check your work and make sure the math in the check register is accurate.
the answer is d
This MIGHT be the last thing i need help on. Can u pls help
Answer: im positive its b
Step-by-step explanation:
Answer:
Irregular Quadrilateral
Step-by-step explanation:
It has four sides (not a pentagon).
None of it's angles/sides are equal (classifies as irregular).
The distance that a object covered in time was measured and recorded in the table below. What equation describes the motion?
y = 1.5x + 2.5
y = -1.5x
y = -1.5x + 2.5
y = 1.5x
Answer:
y = 1.5x + 2.5
Step-by-step explanation:
Using a graph is the simplest way to find this
~*Please help*~ what is x [ 82.24 =- 8.48 + 4x ]
Answer:
[tex]x=22.68[/tex]
Step-by-step explanation:
[tex]82.24=-8.84+4x[/tex]
+8.84 +8.84
[tex]90.72=4x[/tex]
/4 /4
[tex]22.68=x[/tex]
A block of cheese is in the shape of a rectangular prism with a width of 2.5 inches and a height of 5 inches. The volume of the block of cheese is 75 cubic inches. What is the length of the block of cheese?
Answer:
The formula for volume is l x w x h.
Step-by-step explanation
To find the missing link, we do the equation backwards.
l x 2.5 x 5 = 75
If we divide 75 by 5 then by 2.5, we get 6 which becomes our length.
To check, do 5 x 2.5 x 6 which should equal 75
6 is your length
2/3x+1=2/3x-1 solve for x and show work plz
Answer:
this equation is not valid.
.............
...........
VOLLEBALL.Pick one volleyball skill and cover the most important content for learning that skill.
Answer:
The six basic volleyball skills are passing, setting, spiking, blocking, digging, and serving. Passing is often thought of as the most important skill in volleyball. If you can't pass the serve, then you won't ever put your team in a position to score a point. The importance of serving is often undervalued.
Step-by-step explanation:
hope this helps...
have a good day
3.14 x 60^2 x 30
what is the answer rounded to the nearest tenth?
I got 11,304. I don't know if that's right or if it's wrong. Let me check again