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
When a number is tripled, the result is 99. Let p represent the number. What is the value of the number?
Answer:
p equals 33 which is the answer to the problem
PLEASE HELP I GIVE BRAINLIEST I NEED IT ASAP
Answer:
D 13
Step-by-step explanation: L+L+W+W=Perimeter
2(1/4x)+2(2x+1)=4.5x+2
4.5x+2=29 Subtract 2
4.5x=27 Divide by 4.5
x=6 1/4(6)= 1.5 W=1.5 1.5(2)=3
2(6)+1=13 13(2)=26
26+3=29inches perimeter
Answer:
A: 12 4/9
Step-by-step explanation:
1/4x (2x + 1) = 29 (Combine like terms, NOT distributive property!!!)
2 1/4x + 1 = 29
- 1 - 1
2 1/4 / 2 1/4x = 28 / 2 1/4
x = 12 4/9
Helppppp!!!!!!!!!!!! Which of the following number sentences models the Associative Property of Multiplication?
A. 80 x 5 = (40 x 5) + (40 x 5)
B. (11 x 6) x 7 = 11 x (6 x 7)
C. 3 x 4 x 2 = 2 x 4 x 3
D. 44 x 1 = 44
Also who wants to play Minecraft Education Edition with me? I will give brainliest for that person.
Steps: Go search up Minecraft Education Edition. Then go to the website. Sign up. Create a world and then host a game. Give me a code or ask me to invite you to my world. (Trust me, use my world. It's awesome!)
Answer:
b
Step-by-step explanation:
because I learned this like 4 years ago
Answer:
Ahh I think A
Step-by-step explanation:
i need help pleaseee
Answer:
The answer is option B.
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:
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:
Please answer you will get 10 points.
Answer:
your answer will be 126
Step-by-step explanation:
8x+78=2x+114
8x-2x=114-78
6x=36
x=36/6=6
<B=2(6)+114
= 126
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
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.
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:
____n/-6=-4____
__=___
SOLVE STEP 1 EQUATIONS
Four triangles are shown. Based on these triangles, which statement is true?
Answer:
First one
Step-by-step explanation:
100+30=130 That is the rule for finding w
And z=50
Answer: the first one
Step-by-step explanation:
10. An arithmetic sequence has this recursive formula. What is the explicit formula?
Answer:
[tex]a_{n}=45-3n[/tex]
Step-by-step explanation:
Method 1:
Arithmetic sequence is in the form
[tex]a_{n} =a_{1} +(n-1)d\\[/tex]
d is the common difference, can be found by:
[tex]d=a_{n}-a_{n-1}=-3[/tex]
Subtituting the [tex]a_{1}[/tex] and [tex]d[/tex]
You get:
[tex]a_{n}=42+(-3)(n-1)=45-3n[/tex]
Method 2 (Mathematical induction):
Assume it is in form [tex]a_{n}=45-3n[/tex]
Base step: [tex]a_{1} =45-3(1)=42[/tex]
Inducive hypophesis: [tex]a_{n}=45-3n[/tex]
GIven: [tex]a_{n+1} =a_{n}-3[/tex]
[tex]a_{n+1}=45-3n-3=45-3(n+1)[/tex]
Proved by mathematical induction
[tex]a_{n}=45-3n[/tex]
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?
plz help will give out brainliest
Which figure correctly shows a vertical reflection of the illustration?
Answer:
the first picture
Step-by-step explanation:
The scale factor from rectangle Y to rectangle Z is 2. Which statement is true?
A) The area of rectangle Z is twice the area of rectangle Y.
B) The area of rectangle Z is half the area of rectangle Y.
C) The sides of rectangle Z are twice as long as the sides of rectangle Y.
D) The angles of rectangle Z are twice as big as the angles of rectangle Y.
Answer:
Answer is C not A
Michael tracks his pay. He has already earned $97.75. He determined that the expression 97.75+17.80h represents the amount of money, in dollars, he has earned at hours.
Based on the given expression, about how many hours does it take Michael to earn 678.25?
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.
Plsssssss help meeeeeee
1.
total surface area Stot = 20.4924225 cm2
lateral surface area Slat = 16.4924225 cm2
bottom surface area Sbot = 4 cm2
2.
total surface area Stot = 46.1079506 ft2
lateral surface area Slat = 37.1079506 ft2
bottom surface area Sbot = 9 ft2
3.
total surface area Stot = 95.0467761 ft2
lateral surface area Slat = 68.0067761 ft2
bottom surface area Sbot = 27.04 ft2
I need help... plzzzz
Answer:
A and B
Step-by-step explanation:
Because they match the given.
What is the slope between these two points (1,2) and (4,4)?
plss help
Answer:
slope is 2 over 3
Step-by-step explanation:
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.
help me with this problem
what is
0.96÷10 with the power of 4
Answer:
0.00008493465
Step-by-step explanation:
This is your answer.
Answer:
10 to the power of 4 equals to 10,000
so it would be 0.96 ÷ 10,000
which would be
0.000096
take what you will have a nice day <:
Giving brainliest!
. Describe the allegorical characteristics that Scrooge and Bob Cratchit represent.
Its from the book A Christmas Carol If you know the book answer if not you can go bu pls help. Also this was a movie.
7x + 9 = 58 i need all the steps
Answer:
Step-by-step explanation:
7x + 9 = 58
-9 -9 Subtract 9 from both sides
7x = 49
/7 /7 Divide both sides by 7
x = 7 (this is an apporximation)
Answer:
7
Step-by-step explanation:
1st you need to subtract 9 from both sides like this: 7x+9-9=58-9. and you'll get 7x=49. Then, divide by 7 on both sides like this: 7x/7=49/7. and you'll get x=7.
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
whats with these random people always answering with "cutlnk.ml/0tj3C" pls ♂️
i dunno why i dont click the links since they are kinda sus and also why doesn't brainly just ban the cutlink
Triangle ABC and it's transformation Triangle A'B'C are shown describe the transformation.
A. 63°
B. 95°
C. 117°
D. 148°
Answer:
A.63
Step-by-step explanation:
add 85+32
= 117
Total for a trianlge is 180,
Subtract 180 from 117.
180-117 = 63.