Step-by-step explanation:
3x-5y =13......eq(1)
x+4y=10....eq (2)
multiply the eq 2 with 3
then it becomes,
3x+12y=30
Subtracting eq2 from eq 1
3x-3x-5y-12y=13-30
-17y=-27
y=1.588
x+6.352=10
x=3.648
Answer:
i am very positive that the answer is 6'1
Which equation has a graph that is parallel to the graph of 2x - y = -1?
m – 9 + m + 3 what is the awnser
Answer:
2m - 6
Step-by-step explanation:
Combine the two m's in the equation to get 2m in which each m is 1. Combine -9 and 3 together to get -6 since you are adding 3 to -9. You should get 2m-6 as your final answer.
A package of 12 pencils costs £2.95.
A binder costs £3.48.
Penelope buys a package of pencils and a binder. She pays with a £10
note.
What is her change?
Answer:
£3.57
Step-by-step explanation:
£2.95 + £3.48 = £6.43
£10.00 - £6.43 = £3.57
Eugene ate 20% of the Christmas cookies his
grandmother made. If he ate 8 cookies, how
many are left?
Answer:
There are 32 cookies left
Step-by-step explanation:
There are c cookies when we started
c* 20% = 8 cookies
Change to decimal form
c * .20 = 8
Divide each side by .2
c * .2 / .2 = 8/.2
c =40
There are 40 cookies when we started
40 -8 = 32
There are 32 cookies left
least to greatest, 45%, .46, 11/25
Answer:
46, 11/25, 45%
Step-by-step explanation:
(4, 3), (–1, 6), i need to find the slope of these points.
Answer:
[tex]m=\frac{-3}{5}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Point (4, 3)
Point (-1, 6)
Step 2: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m
Substitute [SF]: [tex]m=\frac{6-3}{-1-4}[/tex]Subtract: [tex]m=\frac{3}{-5}[/tex]Rewrite: [tex]m=\frac{-3}{5}[/tex]Answer:
[tex]m=-\frac{3}{5}[/tex]
Step-by-step explanation:
please solve this If you can thank U
Answer:
[tex] \huge{ \boxed{ \tt{1 }}}[/tex]
❁ Question : Simplify :
[tex] \sf{( {x}^{a} ) ^{b - c} \times ( {x}^{b} ) ^{c - a} \times ( {x}^{c} )^{a - b}} [/tex]❁ Solution :
First , Use power law of indices.
Remember : If [tex] \sf{ {a}^{m} }[/tex] is an algebraic term , then
[tex] \sf{( {a}^{m} ) ^{n} } = {a}^{m \times n} = {a}^{mn} [/tex] , where m and n are positive integers.
➝ [tex] \sf{ {x}^{a(b - c)} \times {x}^{b(c - a)} \times {x}^{c(a - b)}} [/tex]
➝ [tex] \sf{ {x}^{ab - ac} \times {x}^{bc - ba} \times {x}^{ca - cb}} [/tex]
Now , Use product law of indices :
Remember : If [tex] \sf{ {a}^{m} }[/tex] and [tex] \sf{ {a}^{n}} [/tex] are the two algebraic terms , where m and n are the positive integers then [tex] \sf{ {a}^{m} \times {a}^{n} = {a}^{m + n}} [/tex]
➝ [tex] \sf{ {x}^{ab - ac + bc - ba + ca - cb}} [/tex]
Since two opposites adds up to zero , remove them :
➝ [tex] \sf{ {x} \: ^{ \cancel{ab} \: - \cancel{ac} \: + \cancel{bc} \: - \cancel{ba} \: + \cancel{ca} \: - \cancel{cb} } }[/tex]
➝ [tex] \sf{ {x}^{0} }[/tex]
Use Law of zero index
Remember : If [tex] \sf{ {a}^{0}} [/tex] is an algebraic term , where a ≠ 0 , then [tex] \sf{ {a}^{0} = 1}[/tex]
➝ [tex] \boxed{ \sf{1}}[/tex]
And we're done !
Hope I helped ! ♡
♪ Have a wonderful day / night ツ
~~
A ball is dropped from a height of 50 feet. The function f(x) = 50(0.6)x gives the height in feet of feet of each bounce, where x is the bounce number. What is the height of the third bounce to the nearest tenth of a foot?
Answer:
The height of the third bounce is 10.8 feet
Step-by-step explanation:
Let us solve the question
∵ A ball is dropped from a height of 50 feet
∵ The function f(x) = 50[tex](0.6)^{x}[/tex] gives the height in feet of each bounce
∵ x is the bounce number
∵ We need to find the height of the third bounce
∴ x = 3
→ Substitute x by 3 in the function above
∵ f(3) = 50(0.6)³
∴ f(3) = 50(0.126)
∴ f(3) = 10.8
∴ The height of the third bounce is 10.8 feet
Taylor is buying a new flashlight. He can choose from red, blue, and silver flashlights that come in both a large size and a small size.
Which list shows all the possible flashlights that Taylor can choose?
A large, small
B. red, blue, silver
c. small red, small blue, large red, large silver
D small red, large red, small blue, large blue, small silver, large silver
Answer:
D
Step-by-step explanation:
It has all the flashlight colors and sizes.
What is the value of tan60.cot60
Answer:
1
Step-by-step explanation:
[tex] \tan \: 60 \degree. \cot \: 60 \degree \\ \\ = \cancel{\sqrt{3}} \times \frac{1}{\cancel{ \sqrt{3} }} \\ \\ = 1[/tex]
Help me out I forgot how to do this lol
Answer:
1:2
Step-by-step explanation:
because there are 9 stars and 18 squares giving you 9:18 but when you simplyfi you get 1:2
Answer: 9:18
Step-by-step explanation:
Count the amount of stars which is 9, then count the amount of circles which is 18. So therefore the answer would be 9:18
Please help me fast
Answer:
...............................4650
1/2% of 412
with work
Answer:
1.5% x 412 = 618?
Step-by-step explanation:
Answer:
103/50
Step-by-step explanation:
Simplify
1/2
100
(412)
Stefan sells Jin a bicycle for $115 and a helmet for $17. The total cost for Jin is 110% of what
Stefan spent originally to buy the bike and helmet. How much did Stefan spend originally? How
much money did he make by selling the bicycle and helmet to Jin?
−23(15x + 3) = −3x − 9
what is x?
Answer:
X= - 10/57
Step-by-step explanation:
Answer:
I am really not sure bout this answer so please let me know if I'm wrong thank you (◍•ᴗ•◍)
Step-by-step explanation:
6v-10=2v-26
6v-10+10=2v-26+10
6v=2v-16
6v-2v=-16
4v=-16
v=-16/4
v=-4
Rhombus JKLM with vertices J(-4,7), K(0,8), L(-1, 4), and M(-5,3): (x, y) ------> (x + 2, y - 2)
Answer:
J'(-2, 5), K'(2, 6), L'(1, 2) and M'(-3, 1)
Step-by-step explanation:
Transformation is the movement of a point from its initial location to a new location. Types of transformation is reflection, rotation, dilation and translation.
Translation is the movement of a point either up, down, left or right on the coordinate plane. If a point A(x,y) is translated a units right and b units up, the new point is at A'(x + a, y + b) while a point A(x,y) is translated a units left and b units down, the new point is at A'(x - a, y - b).
Rhombus JKLM has vertices at J(-4,7), K(0,8), L(-1, 4), and M(-5,3). If a transformation of (x, y) ------> (x + 2, y - 2) is done, i.e. 2 units right and 2 units down, the new points would be at:
J'(-2, 5), K'(2, 6), L'(1, 2) and M'(-3, 1)
THE GREATEST PRODUCT
You have sixty seconds to arrange the numbers 3.456
and 7 in the boxes below to get the largest productible
Each number may be used only once
Answer:
I can't see any boxes??
An amusement park charges $6 to enter, and $3 per game. If you paid a total of $18, how many games did you play?
Answer:
6
Step-by-step explanation:
EASY POINTS FOR YALL
Answer:
I would say the answer is A
Answer:
Step-by-step explanation:
A
Which percent is equivalent to the fraction 2/5
Answer:
40%
Step-by-step explanation:
Answer:
40%
Step-by-step explanation:
2/5 = 4/10
I am thinking of a number, let's call it x . If I increase twice my number by 5, the result is the same as if I triple my number and subtract 1. Use the 4-step process to write and solve an equation to find my number. Make sure to answer in a sentence.
Answer: 6
Step-by-step explanation:
Let the number be x
If I increase twice my number by 5, the result is the same as if I triple my number and subtract 1. This can be formed into an equation as:
(2 × x) + 5 = (3 × x) - 1
2x + 5 = 3x - 1
5 + 1 = 3x - 2x
x = 6
The number you are thinking of is 6
A proportional relationship has a constant rate of change.
True or False
Answer: I think it’s true
Step-by-step explanation:
4x + 2y = 7
I need help
the answer is circle in blue
Madelyn has completed 10/20 problems. Will has completed 80% of the problems. Adam has finished 3/4 of them. Who has finished the most
Answer:
Will has completed the Most.
Step-by-step explanation:
Madelyn has completed 50%
Adam has completed 75%
Will has completed 80%
I hope this helps!!! Please Mark Me Brainliest!!!!!!
Answer: Will
Step-by-step explanation:
Madelyn = 50%. 10/20 = 50%, because 10/20 is half, and 50% is half
Will = 80%
Adam = 75%. 3/4 x 25 = 75/100, which equals 75%.
So in conclusion, Will has finished the most problems, 2nd is Adam, and last is Madelyn.
Hope this helps!
( multiple choice)What is the percent error in this scenario to the nearest tenth of a percent? The actual temperature was 65 °, but Tom read 69° on his thermometer.
A: 6.2%
B: 12%
C: 93.8%
D: 300%
Answer:
I got c
Step-by-step explanation:
sorry if im wrong!
Answer:
I got C or B
Step-by-step explanation:
Not sure, Im not great at this stuff
my question is in the picture
Answer:1
Step-by-step explanation:
give answer ☜
fast
ಠᴥಠ
Answer:
Question a:
[tex]\frac{(2^3)^6 \times 9^3}{4^2 \times 27}\\= \frac{2^{18} \times 3^6}{2^4 \times 3^3}\\=2^{14} \times 3^3[/tex]
Question b:
[tex]\frac{35 \times 7^3}{5^2 \times 343}\\= \frac{7 \times 5^1 \times 7^3}{5^2 \times 7^3}\\= \frac{5^1 \times 7^4}{5^2 \times 7^3}\\=\frac{7^1}{5^1} = \frac{7}{5}[/tex]
Question c:
Note that this one is particularily simple as anything to the power of zero is equal to 1
[tex]((\frac{2^4 \times 3^6}{12^2})^0)^3\\= 1^3\\ =1[/tex]
Question d:
[tex]\frac{13^3 \times 7^0}{((65 \times 49)^2)^1}\\\frac{13^3}{(65 \times 49)^2}\\\frac{13^3}{(13 \times 5 \times 49)^2}\\\frac{13^3}{13^2 \times 5^2 \times 7^4}\\\frac{13}{5^2 \times 7^4}[/tex]
Can someone plz help me?
Answer:
14.8
Step-by-step explanation:
ummmmmmmmmmmmmmmmmmmmm plz hel-p
Answer:
and
Step-by-step explanation:
ok is a great resource for this year
Answer:
2.1 in decimal or 2 1/10 in mixed fraction.
If Danny gains 40 yards on the football field and then looses 15, What was the end result?
Answer:
25 yards
Step-by-step explanation:
Subtract 15 from 40.
Hope this helped :)
Answer:
25 yards
Step-by-step explanation:
Arithmetics
Imagine a straight line divided into 1-yard marks.
Danny runs for 40 marks and locates at mark 40.
He later loses 15 yards and his new position is 40 - 15 = 25 yards
Therefore, the end result is that Danny is at the 25-yard mark.