Your portfolio must include a minimum of the following five types of equations and solutions:
Two one-step equations
Two equations that contains fractions
One equation with distributive property
One equation with decimals
One real-world problem that is solved by an equation
Once you have created each equation, you will solve it and show your work. Pretend that you are teaching the equations to a new pre-algebra student. Or you can actually teach them to a sibling or friend!
This is a total of 7 equations and solutions.
i had gotten a 70 on the 1st try i want a better grade
Answers
Answer: 2 step equations: x-12=4 and 3x=6. Equations that contain fractions: Equations with distributive property: 4x+2=2(x+6). One equation with decimals: 0.75X+25=50. Real world problem that is solved by an equation: Kelly intakes up to 2,000 calories per day. Today she ate breakfast which had 300 calories. For lunch she had 2 pb&j sandwiches with some chocolate milk on the side. That in total had 1,050 calories. When she had dinner she Intakes another 250 calories. For snack she had ice cream which was 150 calories with cookies. If each cookie had 50 calories how many cookies did she have?
Step-by-step explanation:
The images is where I showed all the work
The solution is given below.
What is equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
here, we have,
One-Step Equations:
Number one: x + 6 = 8
Solve: To begin, you must subtract 6 on both sides to get x by itself.
x = 8 When you subtract 6 on both sides, you get x = 8 which is your answer.
This is a one-step equation, meaning it only took us a single step in order to solve this equation.
Number two: x - 5 = 15
Solve: To solve this one-step equation, first, start off by adding 5 on both sides.
Since it's only one step, your answer will be x = 20. All we had to do was add 5 to isolate the variable.
Two equations that contain fractions:
Number one: x - 1/2 = 2/4
Solve: x - 1/2 = 2/4
To begin, we have to add 1/2 to get x by itself. Since 2/4 and 1/2 don't have common denominators, all we have to do is multiply 1/2 by 2/2 to get a common denominator of 4. 1/2 x 2/2 is equal to 2/4. 2/4 + 2/4 is 4/4 which is equal to 1. Your answer is x = 1.
Number two: x + 3/4 = 2/4
Solve: To begin, we have to subtract 3/4 on both sides. Since 2/4 and 3/4 have a common denominator of 4, we can go ahead and subtract right away. 2/4 - 3/4 is equal to -1/4. x = -1/4.
One equation using distributive property:
Number one: 3(x + 2) = 18
Solve: To begin, we have to distribute the 3 to x and 2 (multiply). We get 3x + 6 = 18. To get x by itself, we have to first subtract 6 on both sides. We then get 3x = 12. Now, divide by 3 on both sides so that x is completely isolated, and we get x = 4.
One equation with decimals:
Number one: x + 0.25 = 0.75
Solve: To begin, we have to subtract 0.25 on both sides. When we do this, 0.75 - 0.25, we get x = .50 We can also write this as a fraction .50 is the same thing as 1/2. x = 1/2 or .50
One real-world problem:
Number one: Maria went to the store and she had 20 dollars to spend. She got a notebook for 5 dollars, and she wanted to buy pens with the rest. Each ben cost 5 dollars, how many pens can she buy in total?
Solve: We know that Maria had a total of 20 dollars in total and she already spent 5 dollars. We also know that each pen cost 5 dollars. When knowing this we can write this equation: 5x + 5 = 20. Since we don't know how many pens she's going to buy, we can just write a variable, in this case, x. Now we solve. Just like always, we need to isolate the variable. To do this, we have to first subtract 5. We then get, 5x = 15. Now, divide by 5 on both sides and we get x = 3. That means that Maria can buy a total of 3 pens.
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Step-by-step explanation:
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Given a role of nickels. The diameter of one nickel is 0.835 inches, and the thickness is 0.077 inches. Find the surface area of a roll of $2 in nickels. Round to the nearest tenth. *use π on your sci calculator.
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Answer:
ok
Step-by-step explanation:
What is the slope of the equation: y = - 5x -6
What is the y-intercept of the equation: y = 2x
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Answer:
Step-by-step explanation:
y = mx +b
Here, m is slope and b is y-intercept
1) y = -5x - 6
Slope = -5
y-intercept = -6
2) y = 2x
Slope = 2
y-intercept = 0
which number is written correctly in scientific notation?
1) 0.459×10^8
2) 25.6×10^12
3) 3,892× 10^7
4) 5.03×10^11
Answers
Answer:
1)4.59 *10^7
2)2.56 *10 ^13
3)3.892 *10 ^10
4)5.03 *10 ^11
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Answer:
hiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
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Delta math !!!
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Answer:
x>8
Step-by-step explanation:
you first subtract 13 from both sides resulting in -2x<-16. Then you divide -2 on both sides and when you divide a negative on both sides you have to change the sign, -16/-2=8 so x>8.
please help!! thanks ;)))
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Answer:
I dont see the numbers sorrry
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Answer:
Step-by-step explanation:
x(x+10)=0
Either x=0 or x+10=0
Answer B
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Simplify the complex fraction. State the conditions under which the expression is undefined.
Answers
9514 1404 393
Answer:
(2x +1)/(4x^2) . . . . except x=0, -1
Step-by-step explanation:
Addition of fractions works in the usual way:
a/b +c/d = (ad +bc)/(bd)
Division of fractions works in the usual way:
(a/b)/(c/d) = (ad)/(bc)
__
[tex]\dfrac{\left(\dfrac{1}{2x}+\dfrac{1}{2x+2}\right)}{\left(\dfrac{2x}{x+1}\right)}=\dfrac{1}{2}\cdot\dfrac{\left(\dfrac{1}{x}+\dfrac{1}{x+1}\right)}{\left(\dfrac{2x}{x+1}\right)}=\dfrac{1}{2}\cdot\dfrac{\left(\dfrac{2x+1}{x(x+1)}\right)}{\left(\dfrac{2x^2}{x(x+1)}\right)}\\\\=\boxed{\dfrac{2x+1}{4x^2}}[/tex]
The expression is undefined for any denominator equal to zero: x=0 or x=-1.
Johney bought 3 pounds of hamburger. He wants to divide it evenly into 5 hamburger patties. How much pound(s) is each hamburger patty?
pound(s)
Answers
What is the value of the expression below?
8^1/3
A. 4
B.8/3
C.2/3
D. 2.
Answers
Answer:
Step-by-step explanation:
8=2^3 so
(2^3)^(1/3)
2^(3(1/3))
2^1
2
El Señor Carlos Villa quién Pide al Banco Azteca un crédito de $110000 sobre una tasa del 10% al año su cantidad a pagar será de
Answers
Responder:
121 000
Explicación paso a paso:
Dado que :
Monto del crédito = 110.000; este es el monto principal, P del préstamo
Tasa de interés = 10% = 10/100 = 0.1
Usando la relación para determinar el monto a pagar al final del año:
A = P (1 + rt)
A = monto final
A = 110 000 (1 + 0,1 * 1)
A = 11 000 (1 + 0,1)
A = 110 000 (1,1)
A = 121 000
La cantidad a pagar al final del año = 121.000
Little help?
Given the coordinates of X,Y, and Z, as shown in the figure, find the perimeter of the triangle.
A. 6 units
B. 12 units
C. 15 units
D. 25 units
Answers
What is 45 out of 50 as a percentage?. Single choice.
80%
90%
70%
Answers
Answer:
[tex]90\%[/tex]
Step-by-step explanation:
[tex] \frac{45}{50} = ......\% \\ \frac{(45 \times 2)}{(50 \times 2)} \\ = \frac{90}{100 } \\ = 90\%[/tex]
i hope this help
sorry of it's wrong ☺️
The distance between the bottom of a boat in the water line is called a draft. A boat in the water rises 14 feet above the water. The boat's draft 6 feet. What is the vertical distance between the highest and lowest points of the boat?
Answers
Answer:
84
Step-by-step explanation:
because you multiplication the number
i really need to know this im 2 days behind on math cause of family issues
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Answer: The last graph
Quartiles, mean and medians all match up
Mars has m moons. The number of moons of Pluto is one more than twice the number of moons of Mars. The number of moons of Neptune is one less than 3 times the number of moons of Pluto. Write and interpret a simplified expression that represents the number of moons of Neptune (I’m just asking to answer because I didn’t see any right ones when I was scrolling through them)
Answers
Answer:
neptune = 6m+2
Step-by-step explanation:
mars has 'm' moons
pluto has one more than twice that of mars, = 2m+1
neptune is one less than thrice of pluto
= 3(2m+1) -1
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= 6m+2
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Answers
Answer: Natural/Counting = 1, 0, 6, 3,
Whole = 1234, 135
Integers = -42,260, -97
Rational = 0.5432, 14.4, 6.2, 6.5892,
-14.4, 7.7777777, -13.574,
3.14, 0.4, 6.2, 0.4, 0.34,
12/6, -8/4, -10/5, -3/4, -3/8,
3/7, -4/8, 6/2, -8/4
Irrational = √34, -√34, -√ 36, 2π, √81,
√300, √1, π.
;Hope this Helped with both Pages:)
A rectangular box has a volume of
336 cubic inches. The length of the
box is 7 inches and the width is 12
inches. What is the height of the box?
Someone help pls
Answers
Answer:
4 cubic inches
Step-by-step explanation:
We know that lwh=V
l=7
w=12
h=?
V=336
7(12)=84
336/84=h
h=4 cubic inches
Answer:
4 cubic inces
Step-by-step explanation:
I'm just built different
How many kilograms of 30% salt solution by mass and 40% salt solution by mass
should be mixed to form 200 kg of 37% salt solution by mass?
Answers
Answer:
60 kilograms of the 30% solution
140 kilograms of the 40% solution
Step-by-step explanation:
Let x = the no. of kilos containing 30% salt (solution 1)
and 200 - x = the no. of kilos containging 40% salt solution 2)
.30x = amount of salt in solution 1
.40(200 - x) = amount of salt in solution 2
.37(200) = amount of salt in the final mixture
salt in solution 1 + salt in solution 2 = salt in final mix.
.30x + .40(200 - x) = .37(200)
Let's multiply thru the equation by 100 to remove the decimal fractions
30x + 40(200 - x) = 37(200)
30x + 8000 - 40x = 7400
-10x = -600
x = 60 kilograms of the 30% solution
200 - 60 = 140 kilograms of the 40% solution
How many grams of carbohydrates would you take in if you split this shake with a friend?
How much of your daily intake of cholesterol does this shake provide?
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What is the percentage of calories from fat?
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Answer:
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Answers
9514 1404 393
Answer:
(0, 0), (-5, 6)
Step-by-step explanation:
Any point in the shaded area is a solution. There are an infinite number to choose from.
A couple of them are ...
(0, 0)
(-5, 6)
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(Check all that apply.)
Answers
Answer:
Function 2
Step-by-step explanation:
✔️Slope of function 1:
Slope (m) = ∆y/∆x
Using two points on the line, (0, 4) and (1, 9),
Slope (m) = (9 - 4) / (1 - 0)
Slope (m) = 5/1
Slope (m) = 5
✔️Slope of function 2:
Slope (m) = ∆y/∆x
Using the coordinates of any two given pairs form the table, (0, 1) and (1, -3):
Slope (m) = (-3 - 1) / (1 - 0)
Slope (m) = -4/1
Slope (m) = -4
✔️Slope of Function 3:
The function is given in the slope-intercept form, y = mx + b
m = slope
The function y = 2x - 5, therefore has a slope (m) of 2
Slope = 2
✔️Slope of Function 4:
Slope (m) = -1
✅Thus, the functions that has slopes less than -2 are:
Function 2: slope = -4
Function 1, 3, and 4 all have slopes that are greater than -2
explain why drawing a quick picture is helpful while adding decimals
Answers
Answer:
Drawing a quick picture is helpful when adding decimals because it gives you a visual picture of what the answer is. Also, it gives you the opportunity to be sure that you got the correct answer because computations in adding may have some mistakes.
Step-by-step explanation:
Can someone help me with this answer ill check if its right and give an additional amount of points
Answers
Answer:
4 mph
Step-by-step explanation:
2/3 mile in 1/6 hour
x 6 to make it 1 hour
(6/1)(2/3) = 4
(6/1)(1/6) = 1
4 mph
The first five terms of a sequence are shown. 4, 12, 36, 108, 324, .... Which function models the value of the nth term in the sequence such that f(1)=4? A. f(x)= 3 ( 4 ) x B. f(x)= 3 ( 4 ) x − 1 C. f(x)= 4 ( 3 ) x − 1 D. f(x)= 12 ( 3 ) x − 1
Answers
Answer: I believe it’s f(x)=4(3)^x-1
Step-by-step explanation:
This is a similar triangle. Please find the missing length. (?)
Answers
Answer:
RQ = 10
Step-by-step explanation:
When two triangles are similar, the ratio of their corresponding sides are equal;
Thus, we have it that;
QP/RQ = BC/AB
12/RQ = 36/30
RQ = 12 * 30/36 = 10
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HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
Answers
Answer:
STOP SPAMMING I CAN THEKP YOU BRO I CSNT HELP U...
Step-by-step explanation:GIV EU BAD DAY
Prove to me that you're honest — in one minute.
if u answer this ima be hella impresed
Answers
Honest people would tell other people what they think honestly. And honestly, I don't know how to answer your question :( Honestly, I feel like I don't deserve to answer this question if I can't come up with an honest answer. I don't know, maybe I come back to this question another day when I'm older and wiser, and have an answer that will impress you with my honesty. But for now, honestly, I feel like I have failed this user.
Which is the area of the rectangle?
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