What do you need to know about addition to add algebraic expressions
Answer:
To add two or more monomials that are like terms, add the coefficients; keep the variables and exponents on the variables the same. To subtract two or more monomials that are like terms, subtract the coefficients; keep the variables and exponents on the variables the same.
There are many laws that govern the order in which you perform operations in arithmetic and in algebra. The three most widely discussed are the Commutative, Associative, and Distributive Laws.
Step-by-step explanation:
pleaseee helpppp. is this right ???
Answer: Yes
Step-by-step explanation:
Question 10
In a store, a $250 dress is marked, "Save 35%". What is the sale price of the
dress? Justify your answer.
Answer: $162.50 is the answer
Step-by-step explanation: Multiply 250 by .35 and you get 87.5 which is the amount that is subtracted
If the radius is 40 ft, what is the area of the circle?
Answer:
A = pi(r)^2
A = pi(40)^2
A = 1,600pi sq. ft.
Therfore the answer is C.) 1,600 pi sq. ft.
I hope this helps you!!
Answer:
C - 1600[tex]\pi[/tex] sq. ft.
Step-by-step explanation:
Since the answer has to be in terms of pi, we can exclude that from the equation.
The formula to find the area of a circle is [tex]\pi r^2[/tex] where r is the radius. If we plug in 40 for r, we get 1600[tex]\pi[/tex].
Mrs. Lowry is ordering car decals for each family to put on their cars for the upcoming baseball season. She ordered 25 decals. She got a deal on them and they will be $2 cheaper for each decal. The total came to $250. Write an equation to find the amount, d, for the normal cost of each car decal without the deal. What is the normal cost of each decal without the deal?
Answer: Without the deal: $12 10+2=d
Step-by-step explanation:
25=250
1=10
10+2=12
12x25=300
The table shows the relationship between the cost of monthly cell phone Plan A and the number of minutes used within a month. The equation c= 35+0.05m describes the relationships for the cost c in dollars for minutes m used for Plan B.
Time (min) Cost ($)
0 30.00
2 30.20
4 30.40
What is the difference, in dollars, of the total costs of the cell phone plans if a customer talks for 20 minutes?
Answer:
It should be $50.00.
Step-by-step explanation:
It shows that every 2 mins. adds 20 cents to the bill. I wrote out the numbers and did this:
6 30.60
8 30.80
10 40.00
12 40.20
14 40.40
16 40.60
18 40.80
20 50.00
Answer:
152
Step-by-step explanation:
Just multiply; for example, it says for every 4 minutes 40 cents are added to the cost. If you multiply that times 5 you will get your answer.
Hope this helps
2/5x−2+3(x−4) simplified
Answer:
17x-70/5
Step-by-step explanation:
make a the subject of the formula
9a=10b
Answer:
1=ab
Step-by-step explanation:
you do mines 9a to both side with will lead you to 1
2 friends shared 48 pineapple equally among themselves. One of the friends sold all his pineapple each at $5.How much did he get from selling the pineapples?
Answer:
$120
Step-by-step explanation:
48 pineapples shared equally by 2 people.
48/2 = 24
Each friend got 24 pineapples.
24 × $5 = $120
Answer: $120
Answer: $120
Step-by-step explanation:
Step 1: Find how many 1 person gets (pineapples per person)
48 pineapples divided by 2 people= 48÷2= 24 pineapples each.
Step 2: Money made by 1 person
He has 24 pineapples to sell because that's how many he is supposed to receive. he sells all of them for $5 each, so the total money he makes is 5x24= $120
Checks:
120÷24= 5
the pineapples are 5 dollars each (this is correct).
Hope this helps!
The problem says: Jake cuts out five-pointed stars. They are different sizes, but they all have the same shape. The side lengths within each star are the same. To find the perimeter of each star, Jake uses the expression to find the perimeter of each star, Jake uses the expression 12E+1/2+4E-8.5+2E+8, where E is the side length of the star.
PART A: FIND THE PERIMETER OF A STAR WITH SIDE LENGTH OF 6 INCHES. SHOW YOUR WORK.
PART B. CHECK YOUR ANSWER TO PROBLEM 3 A. SHOW YOUR WORK.
Answer: 60
Step-by-step explanation: 12L+1/2=72.5
72.5-24-8.5+20
72.5-24=48.5-8.5=40
40+20=60
One of a tree's rings has a diameter of 6 inches. What is the circumference of the tree's rings? Use 3.14 for π
C = ? inches
? = missing answer
(will give thanks + 5 star rating)
Answer:
C=18.84
Step-by-step explanation:
C=2*3.14*r
r=diameter/2
50 POINTSS!!! PLEASE HURRY!!!
What are the relationship between the sides, shape, and area of a scaled drawing to the actual object?
Answer:
The scale factor for area is found by squaring the scale factor for length. Thus the scale factor for area is s2. If this is reversed, a method is provided for solving the problem being investigated. The scale factor for area is 2.
Step-by-step explanation:
Select all the expressions which are equivalent to –3(0.15 – 0.2 + 0.25p).
A)–0.45 – 0.6 + 0.25p
B)0.15 – 0.75p
C)3(0.15 + 0.2 + 0.25p)
D)–3(–0.05 + 0.25p)
E)–3(0.05 + 0.25p)
What's the mixed fraction of -35 over 24 (-35/24)?
Answer:
-1 11/24
Step-by-step explanation:
What is the circumference of a circle with a radius of 7 feet? Use 22 over 7 for π.
22 feet
44 feet
154 feet
616 feet
Answer:
44 feet because add it up and it's 7+22+7 and tt
help me with this please
The formula for the surface area of a cylinder is [tex]2\pi rh+2\pi r^{2}[/tex]. Using this, you can calculate that the cylinder's total surface area is 56[tex]\pi[/tex]. But, since Adrian only needs to find the surface area outside of the tire, I'm going to assume that you only need to apply [tex]2\pi rh[/tex] to your problem. Therefore, the answer is 24[tex]\pi[/tex] or 75.4 (rounded to the nearest tenth). I hope this helps!
Solve the equation 29 = v + 23 for v.
−52
−6
6
52
Answer:
29
Solving Algebraic EquationsRulesTo solve, you must isolate the variable. This means moving the variable and it's coefficient to the other side of the equation with only the same variable on the same side with all the constants on the other side.
If you multiply, divide, add, subtract, square root, exponent both sides of the equation by the same value, that end value stays the same.
Terminology
Variable: Any letter than stands for a value than can be solved and change value. (i.e. x, y, z, a, etc.)
Coefficient: The number right before a variable (without being separated by an operator). It is a multiplication factor for a variable. Basically, it's just a way to express what you are multiplying a variable by.
If the coefficient is 1, it means [variable] * 1. 1[variable]
Q)Subtract 23 on both sides.
29 - 23 = v + 23 - 23
v = 29
You want to know whether the students in your school enjoy the school lunch. You survey every student in your class. Is this survey biased or unbiased?
A)Unbiased because the sample only included the students in one class.
B)Biased because the sample only included the students in one class.
C)Biased because the sample included all the students in the class.
C)Unbiased because the sample included all the students in the class.
Answer: B
Step-by-step explanation:
helpppppppppppppppppppp
Answer: 16076.80 cubic yards
Step-by-step explanation: (16)^2 x 3.14 x 20
= 32 x 20 x 3.14
= 16076.80
consider 2 1/2 divided by 1/4
(a) Write a real-world problem for the division.
(b) Create a model or write an equation for the division.
(c) Find the quotient for the real-world problem in part
(a). Show your work or explain your reasoning.
what is 0.3113 rounded to the nearest thousandths?
Answer: 0.311
Step-by-step explanation:0.3113 the 3 is lower then 5 so the 1 stays the same
PLEASE HELLPPPP!!!! I HAVE NO IDEA WHAT IM DOING
Answer:
A
Step-by-step explanation:
I think A is the answer because Its the closest one to the plot and what question is asking for
Question 10
Please help (Someone gave me the wrong answer and now I'm stuck)
Answer
20 is 5%
1 fifth of hunderd that is 20%
=20%
Hurry please
If you need better or more pictures please tell me
Answer:
Step-by-step explanation:
its that answer because i have done this before and know its the answer that is the answer
Basic understanding series
#5-multiplying negative numbers
—————
give 3 examples on multiplying negative numbers and an explanation for other problems similar to those.
-
brainliest/five star question: give a real world example of multiplying negative numbers
Answer: 3 x (-7) -6 x (-4) -156 x ( 65 )
Step-by-step explanation:
negative times negative= positive
negative times positive= negative
positive times negative= negative
Real world example:
you have -15 dollars in your saving account and want how many times you will still be able to take money out of your account before you owe more than 100 dollars.
The length of Ruben’s rectangular backyard is 10 meters more than the width. If the perimeter of the backyard is 220 meters, what is the length of the rectangular backyard?
Answer:
60
Step-by-step explanation:
given: length = 10m + width
perimeter = 220
find length of backyard
Solution
let us assume width = x
length = 10 + width
10 + x
perimeter of rectangular backyard = 2( length + width)
= 220 = 2 ( 10 + x + x )
= 220 = 2 ( 10 + 2x )
= 220 / 2 = 10 + 2x
= 110 - 10 = 2x
= 100/2 = x = 50
so, according to above solution and Q.
width = x = 50
length = 10 + width = 10 + x = 10 + 50 = 60
So the answer is 60
Hope this helps and if I'm wrong I sincerely apologize
What number is represented by point A?
A number line going from 0 to 1. There are 4 equal spaces between 0 and 1. Point A is on the mark to the left of 1.
One-fourth
One-third
Three-fourths
Four-thirds
Answer:
3/4 or Three-fourths
Step-by-step explanation:
1. The number 'A' is between 0 and 1, indicating that its a fraction.
2. We see that there are 4 spaces between 1 and 0.
3. 'A' is on the third space.
Therefore, the number will be marked space/total no. of spaces
(If you find it confusing, try a few similar questions for practice.)
Hope it helps :)
Pls considering giving this a gud rating n marking it the brainliest <3
please answer these questions below in the picture.
Simplify each fraction.
Answer:
15)4/7
16)1/3
17)1/3
18)18/23
19)1/7
20)1/2
21)11/15
22)1/3
23)1/5
24)6/7
25)2/15
26)7/12
27)1/3
28)2/3
29)5/7
30)2/5
Step-by-step explanation:
15) divide by 9 and get 4/7
16) divide by 9 and get 1/3
17) divide by 6 and get 1/3
18) divide by 3 and get 18/23
19) divide by 4 and get 1/7
20) divide by 12 and get 1/2
21) divide by 36 and get 11/15
22) divide by 40 and get 1/3
23) divide by 36 and get 1/5
24) divide by 18 and get 6/7
25) divide by 8 and get 2/15
26) divide by 12 and get 7/12
27) divide by 12 and get 1/3
28) divide by 18 and get 2/3
29) divide by 36 and get 5/7
30) divide by 12 and get 2/5
Which answer choice contains a system of equations?
Answer:B
Step-by-step explanation: