subtract (7x - 3) -(5-3x)
Answers
Answer:
4x-8
Step-by-step explanation:
7x-3-5-3x
combine like terms
7x-3x-3-5
4x-8
unless there is a value for x then that is all i can do
hope this helps:)
Answer: 10x - 8
Step-by-step explanation:
(7x - 3) -(5-3x)
= (7x - 3) - 5 + 3x Made them without parentheses. For -(5-3x), because there are - in front them, which means to multiply -1, so it become -5+3x.
= 7x - 3 - 5 + 3x
= 7x + 3x - 3 - 5
= 10x - 8
Related Questions
an element with mass 630 grams decays by 18.8% per minute. How much of the element is remaining after 7 minutes, to the nearest 10th of a gram?
Answers
Answer:
Step-by-step explanation:
Total Depreciation: 60.24%
Total depreciation: $9,759.50
Car Value after 6 years: $6,440.50
The element is remaining 146.6 grams after 7 minutes, to the nearest 10th of a gram.
What is exponential decay?An exponential function's curve is created by a pattern of data called exponential decay, which exhibits higher decreases over time.
The exponential decay function:
Aₙ = A₀(1-r)ˣ, where y = Final amount, A₀ = Initial amount, r = Rate of decay in decimal form, x = Time.
Given:
An element with mass 630 grams decays by 18.8% per minute.
That means, 18.8% = 0.188
Here, we will use the exponential decay function.
Aₙ = A₀(1-r)ˣ, where y = Final amount, A₀ = Initial amount, r = Rate of decay in decimal form, x = Time.
Here,
A₀ = 630 grams
r = 0.188
x = 7 minutes
Substituting the values to the formula,
A₇ = 630(1-0.188)⁷
A₇ = 630(0.812)⁷
A₇ = 630(0.23275134787)
A₇ = 146.633
A₇ = 146.6 grams.
Therefore, element is remaining 146.6 grams.
To learn more about the exponential decay;
https://brainly.com/question/14344314
#SPJ2
How do you solve 6y/2y +2/6x^2y
Answers
Answer:
i think 6y=21
Step-by-step explanation:
19) Kyle has $600 in a savings account at the beginning of the summer. He wants to have at least $300 in his account by the end of the summer. Kyle withdraws $20 each week.
Write an inequality that represents Kyle's situation.
How many weeks can Kyle withdraw from his account? withdraw money
Answers
If he withdraw 20$/ week the 300 will last for 300/20 = 15 weeks
I will give brainliest and 25 points
pls help me,I don't know how much longer I can stare at this question and please only answer part two,I already did part one and three.and pls include an explanation on how you found the answer.pls and thank you
The following dot plot represents a random sample of elementary students and the number of children that live in their home. Part 1: What is the range of the data set? Part 2: What is the interquartile range of the data set? Part 3: What is the mean absolute deviation of the data set? [Round both the mean and the mean absolute deviation to the nearest tenth.]
Answers
Answer:
30 i think please be right
Answer:
its 30
Step-by-step explanation:
May you please help
Answers
Answer:
3) [tex]\frac{9}{15}[/tex]
Step-by-step explanation:
sine = [tex]\frac{opposite}{hypotenuse}[/tex]
sine = [tex]\frac{9}{15}[/tex]
Two shops, Lidal and Oldi, sell the same brand of toilet rolls but with different package sizes. Calculate the price per 36 rolls for each shop.
Answers
Answer:
The answer is below
Step-by-step explanation:
At Lidal shop, 4 toilet rolls is sold for £2.40. Therefore the cost of each toilet roll is given as:
Cost of each roll at Lidal = £2.40 / 4 = £0.60 per roll
Cost of 36 rolls = cost for each roll * 36 rolls = £0.60 per roll * 36 rolls = £21.6
At Oldi shop, 9 toilet rolls is sold for £4.68. Therefore the cost of each toilet roll is given as:
Cost of each roll at Oldi = £4.68 / 9 = £0.52 per roll
Cost of 36 rolls = cost for each roll * 36 rolls = £0.52 per roll * 36 rolls = £18.72
Find the selling price for each item given the cost and
the percent of markup or discount.
36. tennis shoes: $85; 24% discount
Answers
Answer:
$64.60
Step-by-step explanation: I believe this is right if not sorry. The first step is to multiply $85 by .24 and that is $20.40. Then take $20.40 from $85 (85-20.40) which is $64.60
classify this triangle
Answers
Answer:
Right, isosceles
Step-by-step explanation:
Right: it has a 90° angle
Isosceles: two sides of equal lengths
A gardener has a container with 6 3/5 ounces of liquid plant fertilizer. The gardener uses 2 1/2 ounces on a flower garden. How many ounces of liquid plant fertilizer are left? *
Answers
Answer:
4 1/10 ounces of Liquid plant fertilizer left
Step-by-step explanation:
Total quantity of Liquid plant fertilizer=6 3/5 ounces
Quantity used up on a flower garden=2 1/2 ounces
Quantity of liquid plant fertilizer are left=Total quantity of Liquid plant fertilizer -Quantity used up on a flower garden
6 3/5 ounces -2 1/2 ounces( subtract whole number from whole number and fraction from fraction)
6-2 3/5 - 1/2
4 (6-5) / 10
4 1/10 ounces of Liquid plant fertilizer left
A floor 3.2m long and 2.8 m wide is to be covered with square shaped tiles of length 10cm. Find the coast of flooring if the coast tiles is Rs 150 per 100 tile.
Answers
Answer:
1344
Step-by-step explanation:
100cm = 1 m
Convert the dimensions of the floor to cm = Area of a rectangle = length x breadth = 320 x 280 = 89,600m²
Area of a square = length² = 10cm² = 100cm²
Number of tiles that would be needed = area of floor / area of square
89,600cm² / 100cm² = 896
Cost of one tile = rs 150 / 100 = 1.5
Cost of 896 tiles = 1.5 x 896 = 1344
_______ :21=5:7
10:100=_______:200
12:28=_________:7
48:_________=8:9
36:75=12:________
56:120=_______:8
2:4=________:2
45:________=15:20
_______:65=9:13
180:210=_______:35
63:_______=7:8
48:72=4:_______
________:100=6:10
36:108=6:________
3:________=1:3
_________:180=8:20
81:126=9:_______
________:33=2:3
Answers
Answer:
Step-by-step explanation:
1) 10:18=5:9
2) 15:21=5:7
3) 10:100=20:200
4) 12:28=3:7
5) 48:54=8:9
6) 36:75=12:25
7) 56:120=3.733:8
8) 18:24=6:8
9) 2:4=1:2
10) 45:60=15:20
11) 45:65=9:13
12) 180:210=30:35
13) 63:72=7:8
14) 48:72=4:6
15) 60:100=6:10
16) 36:108=6:18
17) 3:9=1:3
18) 72:180=8:20
19) 81:126=9:14
20) 22:33=2:3
Answer:
1. 15 :21=5:7
2. 10:100=20:200
3. 12:28=3:7
4. 48:54=8:9
5. 36:75=12:25
6. 56:120=3.73..:8
7. 2:4=1:2
8. 45:60=15:20
9. 45:65=9:13
10. 180:210=30:35
11. 63:72=7:8
12. 48:72=4:6
13. 60:100=6:10
14. 36:108=6:18
15. 3:9=1:3
16. 72:180=8:20
17. 81:126=9:14
18. 22:33=2:3
Write Expresion as an Exponent
aaabbccccc
Answers
a^3b^2c^5
Answer:
a³b²c⁵
Step-by-step explanation:
simply count them
When Josh and Sean were each 5 years old, Josh was 1.5 inches taller than Sean. Josh grew at an average rate of 2.75 inches per year from the time that he was 5 years old until the time he was 13 years old. Josh was 63 inches tall when he was 13 years old. How tall was Sean when he was 5 years old?
A. 39.5 inches
B. 42.5 inches
C. 44.75 inches
D. 47.75 inches
Answers
Step-by-step explanation:
josh is 1.5 inches taller than sean
so, let sean's height be x
sean = x
josh = x + 1.5
each year josh gain 2.75 inches, and now he's 13 so how many year has passed
13 y - 5 y = 8
then how tall he grew
2.75×8=22
x + 1.5+22=63
x=63-22-1.5
x=39.5
75 - 4w = 63 solve for w
Answers
Answer:
w3
Step-by-step explanation:
move the constant to the right hand side and change it's sign
calculate the difference
divide both sides of the equation by 4
9514 1404 393
Answer:
w = 3
Step-by-step explanation:
Isolate the w term by subtracting the constant on that side.
75 -75 -4w = 63 -75
-4w = -12
Get w by itself by dividing by its coefficient.
-4w/-4 = -12/-4
w = 3
Rewrite the equation by completing the square.
6 - 16 = 0
(x +
Answers
Answer:
6-16=10x here is you answer
What is the range of the function graphed below?
Answers
Answer:
(-∞, 2)Step-by-step explanation:
As we see on the graph, the range is:
(-∞, 2) ory < 2plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Answers
Answer:
60 degrees
Step-by-step explanation:
A triangle is 180 degrees and there is already 40 and 80 degrees.
So... 180-80-40=60 degrees.
Hope this helps :D
X+80+40=180
X+120=180
X=180-120
Therefore X=60 degree ans
Hope this helps you!
Please mark it as the brainliest<3
What is the volume for this prism?? Thank you :)
Answers
Answer:
Volume = Area by height. V = A X h.
Step-by-step explanation:
i hope it helps
ASAP!!! I need help with number 9!!
Answers
Answer:
The amount of each ingredient Alicia uses to make oat biscuits are;
440 g of oat, 220 g of butter, and 110 g of syrup
Step-by-step explanation:
9. The question parameters are
The ingredients with which Alicia makes oat biscuit = Syrup, butter, and oat
The ratio of the ingredients with which Alicia makes oat biscuit = 1 : 2 : 4
The quantity of syrup Alicia has = Large amount (Plenty)
The amount of butter she has = 250 g
The amount of oat she has = 440 g
From the given ratio, we have;
The mass of oat Alicia uses is 2 times the mass of butter she uses and 4 times the mass of syrup she uses
When Alicia uses the 440 g of oat, we have;
The amount of butter she will use = 440 g/2 = 220 g
The amount of syrup she will use = 440 g/4 = 110 g
Therefore, Alicia uses the 440 g of oat, 220 g of butter, and 110 g of syrup
Determine the slope of the line that passes through the points
(6,4) and (2,7).
Answers
Answer: -3/4
Step-by-step explanation:
change of y/change if x
so 7-4/2-6 which gets you -3/4
Lemme know if you need a better explanation hope this helps
Solve the inequality and graph the solution on the line provided. 3 − 7 x <−53
Answers
Answer:
x>8
Step-by-step explanation:
3-7x<-53
-7x<-56
x>8
help me whit this please
Answers
Answer:
(5,-3) *red* i cant tell wht it says very well
Step-by-step explanation:
The base (b) of the triangle is
y feet.
The height (h) of the triangle is
feet
The area of the triangle is
square feet
Answers
Answer:
10 15 75
Step-by-step explanation:
[tex] (\frac{1}{15} - \frac{1}{20} )[/tex]
Answers
Which polynomials are prime? Check all that apply.
Answers
Answer:
1. [tex]15x^2 + 10x -9x + 7[/tex]
4. [tex]8x^3 + 20x^2 + 3x + 12[/tex]
5. [tex]11x^4 + 4x^2 -6x^2-16[/tex]
Step-by-step explanation: I did this assignment on edge.
I'll give brainliest.
Answers
Answer
*edit* oh wow im srry
Step-by-step explanation:
Answer:
y = 5x + 4 (if the question is asking for an equation that is)
Step-by-step explanation:
Solve for the slope using y2-y1/x2-x1
Substitute: 19 - 9/ 2 - 1
Now you get 5 as your slope
Substitute this value into y = mx+b for the y - int
Remember m is the slope and b is the y intercept
After you solve for the y - intercept you get y = 5x + 4
use the grouping method to factor the polynomial below completely 3x^3+6x^2+5x+10
A. (3x^2+5)(x+2)
B. (3x^2+2)(x+2)
C. (3x^2+5)(x+5)
D. (3x^2+2)(x+5)
Answers
A gives us the same answer
A
The crispy rice treats have cooled, Mrs. Williams cuts them into 30 equal pieces. She gives two-fifths of the treats to her son and takes the rest to school. How many treats will Mrs. Williams take to school?
Answers
Answer:
18 pieces
Step-by-step explanation:
divide 30 by 5
you'll get 6
so one-fifth is equivalent to 6 of the pieces
multiply 6 by 2
you'll have 2 so two-fifths is equal to 12 pieces of rice crispy treats
subtract 12 from 30
30 - 12 = 18
So she took 18 pieces to school.
30 POINTS AND BRAINLIEST TO FIRST RIGHT ANSWER
Answers
Answer:
Look ate the image.
Step-by-step explanation:
HELP!
What is the missing term? What is the rule? 8 9/10, 7 7/10, 6 1/2 , _________
Answers
Answer:
5 3/10
Step-by-step explanation:
You subtract 1 1/5 from the number (n).
(In equation) x = n - 1 1/5
The rule is to subtract 1 2/10 each time
To figure this out, first look at the whole numbers
8, 7, 6, ___
You can see that your subtracting one to get to the next number.
Now look at the fractions.
9/10, 7/10, 1/2
To figure out the change you want all the fractions to have the same denominator.
1/2 = 5/10
9/10, 7/10, 5/10, ___
You can now also see that 2/10 is being subtracted each term.
Adding the two changes you get 1 + 2/10 = 1 2/10