Answer:
p equals 33 which is the answer to the problem
Which of these systems of equations would be best solved using the subtraction method?
I. 2x−7y+3y = 4 −6x−4y = −52
II. 2y = −5x+6x−5 y = 2x−6
III. −7x+3x+2y = 4 4x−6y = −52
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
Rose wants to buy a toy that costs $14. If she gives the cashier $20, which equation will tell you how much change Rose gets back?
A) x - 14 = 20
B) x + 14 = 20
C) x + 14 = -20
D) x - 14 = -20
Answer:
B) x + 14 = 20
Step-by-step explanation:
What is the founder of 100 and 2,009
Answer:
im kinda confused on what your asking but if you wanna know who then Milton Sirotta and our number system comes from Aryabhata
Step-by-step explanation:
For the situation, write and solve an equation. Then, explain what your solution means. If you get stuck, try drawing a diagram on your paper.
A food pantry is making packages. Each package weighs 64 pounds. Each package contains 4 identical bags of rice and a 7-pound bag of beans.
Answer:
64*4=256
256/7= 1782
Answer 1789
That means that there are 1789 packages.
anyone wanna help me w/ a prank?
ok so you have to have rob lox (my friend who i'm pranking has it so yea)
basically i need someone to fake replace her and pretend i replaced her, shes always been afraid of that.
Dw ill text her right after that it was a prank lol.
Answer:
um sure but first 8/16 simplified to 1/2
Step-by-step explanation: ddon't mind the equation
What property is being shown? 3 + x + b= 3 + b + x
a. Associative
b. Commutative
c. Symmetric
Answer:
B. Commutative
Step-by-step explanation:
Commutative The order in which the operands are taken does not affect their image under the operation.
I belive this is the answer!
Hope this Helps!! :))
Answer:
B. Commutative
Step-by-step explanation:
I really need help quick!!:) please!! I will give brainliest to first right answer!!!
Answer:
SA = 41.
Step-by-step explanation:
Add up everything and you get 41 as the SA.
Attachment Below: Please help!
Answer:
diagram a has a slope of 4
diagram b has a slope of 1/4
diagram c has a slope of -1/4
Step-by-step explanation:
have a great day :D
What is the circumference of a 12 inch diameter pizza answer in terms of pi
Simplify the expressions by combining like terms
-3d + 8d - 5d
Answer:
-3d - 3d
i think because 8d and 5d are like terms
or.. -3d +8d -5d= 0
Does anyone know this stuff if you do pls help me
Please help! I'll give brainlist!
Answer:
36°
Step-by-step explanation:
finger slipped one sec
Answer:
36°
Step-by-step explanation:
One batch of cookies requires two eggs and two and a half cups of flour. How many cups of flour are needed to make three and a half batches of cookies? Write and solve a proportion.
Answer:
multiply 2 1/2 and 3 1/2
Step-by-step explanation: :)
Answer:
im hungry now.
Step-by-step explanation:
Dr. Wong has a table of data in her veterinary office that shows the average lifespans and weights of several popular dog breeds. Alfonso made a scatterplot of these data for a math project.
Answer the questions to make predictions about the lifespan of a specific breed of dog.
1. Describe the association shown by this scatterplot.
2. Alfonso is thinking of getting a bloodhound. Bloodhounds usually weigh about 90 pounds. Based on the data, estimate for the lifespan of a bloodhound. Explain how you made your estimate.
3. Alfonso's friend Dani tells Alfonso that her bloodhound, Ol' Sniffy, lived to be 14.
Based on what you know, do you think this was because:
1. Alfonso didn't use a good estimation method,
2. Dani doesn't remember Ol' Sniffy's age correctly, or,
3. Ol' Sniffy lived an unusually long time?
Justify your answer.
Answer:
1. The heavier the dogs are, the shorter lifespan they have.
2. The lifespan of a bloodhound is on average 10 years long
3. Number 2
Step-by-step explanation:
#1 explination: Since its obvious that the graph angles downwards as it goes towards the left, and because as you go to the left you get heavier dogs, put 2 and 2 together and you get my answer.
#2 explination: We see 3 dots around 90 pounds, one that lives 11 years, and 2 that live 10 years. Since we need to be accurate, we need to find the average of 10, 11, and 10. (10+10+11)/3=10.33. Now we round to 10, so 10 is our answer.
#3 explination: Since there is a bloodhound that lives to be 14, we have two answers, 2 or 3. 1 doesn't work since if Alfonso doesn't have good estimation, the first two questions wouldn't matter *the more you know*. Since we see no unusual pattern between any of the three dots I mentioned earlier, Dani must of forgotten her dog's age (probably because of that dog years thing.)
Answer:
Person Above is correct.
Step-by-step explanation:
Give them brainliest.
Mrs. Murphy earns a 3.5% commission at her job in retail. How much does she need to sell in order to earn $630
Answer
$22.05
She need to sell she need to sell $22.05 in order to earn in order to earn $630
____n/-6=-4____
__=___
SOLVE STEP 1 EQUATIONS
What is the angle of BGH?
Simplify the expressions by combining like terms
4.2j + 6.7j - 5j - 5
Answer:
5.9j-5
Step-by-step explanation:
(4.2+6.7-5)j-5
y=3x+14
2x-3y=-14
Substitution method
Answer:
x = -8
Step-by-step explanation:
y = 3x + 14
2x - 3y = -14
So, what is the substitution? Y of course, this is because y is equal to 3x + 14.
2x - 3 (3x + 14) = -14
Multiply 3 with the numbers in the parentheses.
2x - 9x + 42 = -14
So you maybe be wondering why it is a negative 7 instead of subtracting 9 with 2. Using PEMDAS, we always read from left to right. So it is basically 2 -9 and you get -7.
-7x + 42 = -14
Then subtract 42 from both sides.
-7x + 42 - 42 = -14 - 42
Simplify
-7x = -56
Divide 7 by both sides.
-7x / 7 = -56 / 7
x = -8
And you might ask, why we get x instead afterwards. This is because both -7 and 7 cancel each other out leaving us with x.
PLEASEEEEEEEEEEEE HELPPPPP MEEEEE
Answer:
4.5
Step-by-step explanation:
Answer:
4.5
Step-by-step explanation:
1 1/2 X 2 X 1 1/2
1.5 X 2 X 1.5
X means multiplying. To find the volume you need to multiply 3 of them.
Hello!
I need help please...
What is [tex]\sqrt[450]{3,650}[/tex] as a divided.
Make a explanation to this... Do not copy, or go on g.oogle to get the answer to this...
And maybe you can show proof how you got the answer?
Thanks~
Answer: The Answer is in a fraction form
Step-by-step explanation:
9/73
To make 3 cups of rice, Nina needs 5 cups of water. To make 9 cups of rice, she needs 15 cups of water. Write this as a proportion.
One market sells a 3-kilogram bag of tortillas for 45 pesos, and the second market sells 2 kilograms of tortillas for 22 pesos.
Which unit price is lower? / Would I subtract 2 kilo from 22 pesos?
Answer:
The second market is cheaper
Step-by-step explanation:
For the first market:
If the 3Kg = 45 pesos
then 1Kg = 15 pesos because you divide it by 3
In the same way for the second market:
2Kg = 22pesos
so 1Kg is 11 pesos as you divide it by 2.
Therefore the second market is cheaper as the unit price is lower.
Which letter on the number line represents 4.55?
F
E
D
C
Answer:
F
Step-by-step explanation:
uhh please help 4 spring break hamwork math btwww
Answer:
60x + 42y
Step-by-step explanation:
6(10x + 7y)
Use distribute property and multiply 6 to everything inside the parenthesis:
6 x 10x = 60x
6 x 7y = 42y
SO, 60x + 42y is the correct answer
Answer:
60x + 42y
Step-by-step explanation:
Petra invested $6,000 at 6.5% simple interest for 3 years. Martin invested $6,000 at
5% for 42 months. Who had more money at the end of their investments and by how much?
Which of these systems of equations would be best solved using the subtraction method?
I. 2x−7y+3y = 4
−6x−4y = −52
II. 2y = −5x+6x−5
y = 2x−6
III. −7x+3x+2y = 4
4x−6y = −52
Answer:
diagram a has a slope of 4
diagram b has a slope of 1/4
diagram c has a slope of -1/4
Step-by-step explanation:
have a great day :D
Can you help me plzzzzzzz
Answer:
A
Step-by-step explanation:
11^2 x 3.14 x 10 = 3799.4
Answer:
I believe it is A. 3799.4
Step-by-step explanation:
I used a formula from online and it gave me 3801.33 which is closet to A. 3799.4
is searching online for airline tickets. Two weeks ago, the cost to fly from boston to hartford was $300. Now the cost is $375. What is the percent increase? What would be the percent increase if the airline charges an additional $50 baggage fee with the new ticket price?
Answer:
25% and 42%
Not sure how to explain it.
Answer:
Step-by-step explanation:
If you don't want to see steps
Answer in order: 25% then 40%
(Copying from notes I've had from 5th grade)
1.Percent of Change
Step 1 subtract the two values
Step 2 Divide the original amount answer will be a Decimal
Step 3 Convert Decimal to %(percent) by moving decimal two times to the right.
Your welcome.
PLZ I NEED HELP, will give BRAINS
Answer:
0% of 36: 0
100% of 36: 36
25% of 36: 9
75% of 36: 27
Step-by-step explanation:
0% of any number is 0.
100% is the same number.
To find 25% you can divide by 4.
To find 75% you can divide by 4 and multiple by 3.
25% = 1/4
75% = 3/4
I hope this is helpful :)