Answer:
-1/2 and -3/4
Step-by-step explanation:
rational numbers are numbers that can be expressed in a fraction
A lunch bill is 12 before tax. If the tax on the bill is 7.5 what is the total cost of the lunch including tax
Answer:
$12.90
Step-by-step explanation:
Before Tax Price: $12.00
Sale Tax: 7.50% or $0.90
After Tax Price: $12.90
Can someone please help
Answer:
D can be used
Step-by-step explanation:
Please help me! -3a+6(1+6a)=4(8a+1)
Answer:
-3a + 6 + 36a = 32a + 4
a = - 2
Please help I will be very grateful for this
Answer:
____________
the answer is B
___________
explanation
Factor out the greatest common factor from each group.
Group the first two terms and the last two terms.
(x^2 - 2x) - 3xy + 6y
Factor out the greatest common factor (GCF) from each group.
x(x - 2) - 3y (x - 2)
Factor the polynomial by factoring out the greatest common factor, x - 2
(x - 2) (x - 3y)
Answer:
Step-by-step explanation:
your answer would be B.
add and subtract the second turn to the expression and Factor by grouping
Which set of equivalent fractions can be used when adding 7/8 and 5/12 ?
Answer: 84/96 and 40/96
Step-by-step explanation: You find a denominator that they both have in common. The LCM is 96 and you get the answer! You multiply 1 side by 8 and the other by 12 and you get the answer!
Help please !!!!!!!!!!!!
Answer:
You would need to Quadruple the length.
Step-by-step explanation:
In this picture, the scaled drawing's perimeter is equal to 12. So if you quadruple the length, the actual perimeter would be 48.
I need help ASAP please !!!
Answer:
Step-by-step explanation:
6x + 19 + x = 180
7x + 19 = 180
7x = 161
x = 23°
6(23) + 19= 138 + 19 = 157°
(x - 9(a/8)) = a a = 16
Answer:
x = 34
Step-by-step explanation:
(x - 9(16/8)) = 16
(x - 9(2)) = 16 Divide 16 and 8
x - 18 = 16 Multiply 9 and 2
x = 34 Add 18 to both sides
( 100 POINTS FOR EVERYTHING )
[ Integers ]
You know what to do, there are 2 images and make sure to answer every single one. I know 1 person who knows this topic very well.
Answer:
3. x+8
4. 6y
5. 1/2m
6. 50/h
7. 7-n
8. 15+x
9. 2t/12
10. p² -3
11. 2k-7
12. 3(w+5)
13. C
14. The error was it was written that you would subtract the pages read by pages in the article which is incorrect. You would subtract pages total (5) by pages read (p). So it is 5-p.
15. 4v
16. 16/p
17. 2.97/p
18. 20+j
19. 7-d
20. m/60
21. y/12
22. unit rate-8
23. unit rate-1.5
24. unit rate-2.4
25. unit rate-6.8
26. C
You have a bag with 30 fireballs and another bag with 42 jolly ranchers. For a party, you want to repackage the candy into smaller bags, and you want each bag to have the same number of fireballs and jolly ranchers and. How many bags will you be able to make?
Answer: 6 bags 5 fire balls and 7 jolly ranchers in one bad
Step-by-step explanation:Ok so you got 30 fire balls 42 ranchers what you can do is see like wow more ranchers in a bag we know that hmm 42/6 is ya know 7 and that 6 does it go into 30 yeah it does 30/6=5 so you got 5 fire balls and 7 jolly ranchers is each bag with 6 bags
Answer:
6 bags
Step-by-step explanation:
The GCF of 30 and 42 is 6.
30/6 = 5
42/6 = 7
To use all candy, put 5 fireballs and 7 jolly ranchers in each bag. You will make 6 bags.
The first drop down: (x-12),(x-80), (80-x), (12-x)
Second drop down: 12(80-x)=816,12(x-80)=816,80(12-x)=816,80(x-12)=816
Answer:x=12 and 68$
Step-by-step explanation:
if 6 orange cost nu.48what is the cost of each
Step-by-step explanation:
Hey there!!
The cost of 6 orange = nu.48
The cost of 1 orange = nu.48/6
= nu.8
Therefore, the cost of each orange is nu.8.
Hope it helps...
how can you reflect a point over the y axis without graphing it?
Answer: You switch the point in the x-axis to the negative/positive of the number.
Step-by-step explanation:
So for example if you have the point (3,7), you would switch the 3 to -3 and you would keep the y the same.
Hope this helps!
Can someone help me
Hello! I can help you! I did not know what numbers you needed so I worked on problems 43- 46. For problems 43 and 44 you are going to be doing the same thing, but I can show you have to do both. So for number 43, y=-4x-2; (0,-1), you want to keep it parallel, so you are going to keep the slope ( -4) the same. You use point slope form which is y-y1=m(x-x1) and you plug it in. So I used the points that they gave at the top (0,-1) which means 0 is x and -1 is y so my new equation in point slope is y+1=-4(x-0). I did y+1 instead of y-1 because two negatives make a positive so the negative 1 makes the equation positive. After I wrote the equation, I solved it by distributing the -4 to the numbers in the parentheses (x-0). I got y+1=-4x and from there I just subtracted 1 on both sides so all that’s left is y=-4x-1 and that’s the answer for 43. You would do the same thing for number 44 but instead of getting the question in slope form you need to get there. You would just subtract 2x on both sides and get -y=-2x-4 and from there you divide a negative 1 on both sides so that y is positive ( y is always positive) and your equation will be y=2x+4 and then you do the same thing you did for question 43 with the point slope information. For the next to problems, 45 and 46, it going to be a little different but it’s not too difficult. Instead of just taking the slope and plugging it into the point slope equation you need to flip the reciprocal and make it negative. So for 45, 2/3 would turn into -3/2 and that is what you would plug into the equation. It would be y+2=-3/2(x+6) and you would solve and get y+2=-3/2x-9 from there you would subtract 2 on both sides and you would get y=-3/2-11. You would do the same for number 46, except in the beginning you need to subtract 4x from both sides to get y=4x-6 and the just flip the reciprocal and make it negative ( -1/4x). I hope that helped you understand! Good luck! :)
Answer:
all work is shown and pictured
Lyons evaluated the expression analyze Leon’s work check all that apply
Answer: The answer is C, and D.
Answer: The answer is actually C D and E
Step-by-step explanation:
I tried what the person said was “correct” and got it wrong
Find the least common multiple (LCM) of 7 and 12.
Answer:
84Step-by-step explanation:
Method 1 ; Prime factorization
[tex]7 ,12\\\mathrm{Prime\:factorization\:of\:}7:\quad 7\\\mathrm{Prime\:factorization\:of\:}12:\quad 2\cdot \:2\cdot \:3\\= 847\times\:2\times\:2\times\:3\\= 84[/tex]
Method 2 ;Multipliers
[tex]\mathrm{The\:multipliers\:of\:}7\\=7,\:14,\:21,\:28,\:35,\:42,\:49,\:56,\:63,\:70,\:77,\:84,\:91,\:98,\:105...\\\\\mathrm{The\:multipliers\:of\:}12\\=12,\:24,\:36,\:48,\:60,\:72,\:84,\:96,\:108,\:120,\:132,\:144,\:156,\:168,\:180...\\\\\mathrm{The\:smallest\:common\:number\:is} \\=84[/tex]
Method 3 ; Using GCD
[tex]lcm\left(a,\:b\right)=\frac{|a\cdot b|}{gcd\left(a,\:b\right)}\\\\\mathrm{Greatest\:Common\:Divisor\:of\:}7,\:12:\quad 1\\=\frac{\left|7\times\:12\right|}{1}\\\\= 84[/tex]
The current value of a baseball card is 50 times its original value v (in dollars). The baseball card is worth $62. Write and solve an equation to find the original value of the baseball card.
Answer:
62*50=3100
enjoy
PLEASE HELP :((
Which inequality is represented by the graph?
Answer:
y < 5/3x -3
Step-by-step explanation:
Used Desmos graphing calculator :)
If an 8MB-mp3 music file player can store 3,780 songs. How many albums can a 16MB store if there are 12 songs on each album?
Answer:
Hey there!
8MB=3780 songs
16MB=3780(2), or 7560 songs.
If there are 12 songs per album, the 16MB music file can store 7560/12, or 630 albums.
Let me know if this helps :)
Which choice correctly explains which product is the better buy? Coffee Brand A is sold for $6.99 per pound Coffee Brand B is sold for $5.69 for 12 ounces Question 1 options: A Coffee Brand A is a better buy because its unit rate is $2.29 per ounce B Coffee Brand A is a better buy because its unit rate is $0.44 per ounce C Coffee Brand B is a better buy because its unit rate is $2.11 per ounce D Coffee Brand B is a better buy because its unit rate is $0.47 per ounce.
Answer: Choice B
Coffee Brand A is a better buy because its unit rate is $0.44 per ounce
=======================================================
Explanation:
Brand A is sold for $6.99 per pound, which is the same as saying $6.99 per 16 ounces. The unit rate is 6.99/16 = 0.436875 = 0.44 dollars per ounce
Brand B is sold for $5.69 for 12 ounces. The unit rate is 5.69/12 = 0.47416 = 0.47 dollars per ounce
Brand A is cheaper per ounce compared to brand B.
------------------
Here's another way we can look at it
Brand A is $6.99 per 16 ounces. We can set up the equation below
6.99 dollars = 16 ounces
then divide both sides by 16 to turn "16 ounces" into "1 ounce"
So,
6.99 dollars = 16 ounces
6.99/16 dollars = 16/16 ounces
0.436875 dollars = 1 ounce
0.44 dollars = 1 ounce
is the unit rate for brand A.
Similar steps would happen with brand B as well.
20 points Without solving the systems, determine if there is 0, 1 or infinite solutions. Explain how you know.
Answer:
Infinite Solutions.
Step-by-step explanation:
3x+2y=8 for x:
3x+2y=8
3x+2y+−2y=8+−2y(Add -2y to both sides)
3x=−2y+8 3x 3 = −2y+8 3 (Divide both sides by 3)
x= −2 3 y+ 8 3
Substitute −2/3y + 8/3 for x in 4.5x+3y=12:
4.5x+3y=12
4.5( −2/3y+ 8/3 )+3y=12
12=12(Simplify both sides of the equation)
12+−12=12+−12(Add -12 to both sides)
0=0
Infinitely many solutions.
Answer:
Infinite Solutions.
Step-by-step explanation:
3x+2y=8 for x:
3x+2y=8
3x+2y+−2y=8+−2y(Add -2y to both sides)
3x=−2y+8 3x 3 = −2y+8 3 (Divide both sides by 3)
x= −2 3 y+ 8 3
Substitute −2/3y + 8/3 for x in 4.5x+3y=12:
4.5x+3y=12
4.5( −2/3y+ 8/3 )+3y=12
12=12(Simplify both sides of the equation)
12+−12=12+−12(Add -12 to both sides)
0=0
Infinitely many solutions.
Patrick and his friends Jerome and marina collect football cards. Altogether they have 3000 cards. Patrick has 1533 cards in his collection and Jerome has 837 cards. Which statements about the football cards are correct ?
Answer:
i'm not sure what the statements are but here is some information
p + j + m = 3000
1533 + 837 + m = 3000
m = 630
Marina has 630 cards
The area of the square base is S(x), where x is the length of the concrete foundation, and the area of the base of the cylindrical tank is C ( r ), r is the radius of the cylindrical tank. What does the expression S ( C ( r ) ) represent?
Answer:
C(r) is the area of the base of a cylindrical tank with radius r.
We know that this area is:
C(r) = pi*r^2
S(x) is the area of the square base where x is the side length of the base.
S(x) = x*x
Now, we have the expression:
S( C(r)) wich means that we are evaluating the function S(x) in the point x = C(r)
Now, we have a problem here.
In S(x), S(x) is in units of area, and x is in units of length.
And the same for C(r), C(r) is in units of area, and r in units of length.
then we can not have x = C(r)
Then this expression does not represent anything, because the units do not match, so it has no physical sense.
749,381 in standard form
Answer:
Standard form of 749381
=> 7.49381 x 10^5
Gemma, a scuba diver, begins a dive on the side of a boat 4 feet above sea level. She descends 28 feet. Which integer represents Gemma’s position with respect to sea level?
Answer:
-24 or B
Step-by-step explanation:
Because is she rises up 4, it is +4. Then subtract 28 from 4. That makes it -24.
The integer represents Gemma’s position with respect to sea level 24.
We have given that,
Gemma, a scuba diver, begins a dive on the side of a boat 4 feet above sea level. She descends 28 feet.
What is the integer?An integer is colloquially defined as a number that can be written without a fractional component.
We have to determine which integer represents Gemma’s position with respect to sea level
Because if she rises up 4, it is +4.
Then subtract 28 from 4. That makes it -24.
To learn more about the integer visit:
https://brainly.com/question/17695139
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A fencing compony charges $22 per foot to install
a wood fence. How much will it cost to install a
wood fence around a rectangular pool area that is
20 feet wide and 38 feet long?
During summer, Bryan earns $8.75 an hour working as a lifeguard. He works 43 hours. What is the total amount of money Bryan will have on his paycheck?
Answer:
$8.75 X 43 equals $376.25
Step-by-step explanation:
increase £100 by 30%
Step-by-step explanation:
100+(100*30/100)
=100+30
=130
Answer:
=£130
Step-by-step explanation:
£100=100%
= 130% I add 30 to 100
130×100÷100=130
=£130
w−2+2w=6+5w how do I solve this I have been stuck on this for like 10 minutes.
Answer:
W= -3
Step-by-step explanation:
3w=6+5w
-5w on each side
-2w=6
Divide by - 2 on each side
W=-3
I need help on this problem
Answer:
The answer is c.
Answer:
I hope the information below helpsStep-by-step explanation:
Option 1
[tex]\left|-0.2\right| = 0.2\\\\\mathrm{Apply\:absolute\:rule}:\quad \:|-a|=a,\:\quad \:a>0\\\\0.2 =0.2\\\\True[/tex]
Option 2
[tex]-\left|0.2\right| = 0.2\\\mathrm{Apply\:absolute\:rule}:\quad \:|a|=a,\:\quad \:a\ge 0\\\\-0.2 =0.2\\False[/tex]
Option 3
[tex]\left|0.2\right| =0.2\\\mathrm{Apply\:absolute\:rule}:\quad \left|a\right|=a,\:a\ge 0\\\\0.2 =0.2[/tex]
Option 4
[tex]-\left|0.2\right| =- 0.2\\\mathrm{Apply\:absolute\:rule}:\quad \:|a|=a,\:\quad \:a\ge 0\\\\-0.2 =-0.2\\True[/tex]