Answer: x=1,y=3
Step-by-step explanation:
Given,
y - 1 =2x
y = 2x + 1-----(i)
Again,
We have,
y = 2x + 1
Now replacing the value of y from (i)
2x + 1= -x +
or, 2x + x= 3
or,3x= 3
So x=1
Now,
y=2x +1
or, y=2×1+1
so y=
Answer:
x=1, y=3. (1, 3).
Step-by-step explanation:
2y-2=4x
y=-x+4
----------
2y-2=4x implies 2(y-1)=2(2x), so y-1=2x.
(-x+4)-1=2x
-x+4-1=2x
-x+3=2x
3=2x-(-x)
3=2x+x
3=3x
x=3/3
x=1
y=-1+4=3
Please Help me with these!
Answer:
30% and $30
Step-by-step explanation:
Well 240-168 is 72
72 is 30 percent of 240 because
240* x/100 = 72
24000x=7200
x=.3
.3 is percentage is 30%
We can check by doing
240*.3= 72
there is a 30% decrease
Next question
If the total price of something is 31.20 with a 4% tax we do
x * .04 + x = 31.20
because 4% added to the price of that object is 3.20
1.04x = 31.20
x= 30
we can check by doing
30*.04+ 30= 31.2
A. [(-30)+(-5)]+[45÷(-5)]
B.[17-(-9)]+[(-39)÷(-3)]
C. [(-23)+(-9)+11]+[(-12)×4]
D.[17+(-40)]+[(-16)+12]
E.[23+(-19)]+[(-5)×8×(-3){
Repaso de números enteros y fraccionarios Chicos me ayudan a resolver esto plis con todo el procedimiento
A) Answer:
[tex] - 44[/tex]
B) Answer:
[tex]39[/tex]
C) Answer:
[tex] - 69[/tex]
D) Answer:
[tex] - 27[/tex]
Sorry, I don't think the last one is an equation.
I think you didn't wrote the number that comes after that.
Find and reduce
5/6 - 2/3 x 3/4
Answer:
1/3
Step-by-step explanation:
Answer: 1/3
Step-by-step explanation:
PLS SOLVE THIS
I WILL MARK BRAINLIEST
Answer:
AB = 25 units
Step-by-step explanation:
In right triangle ACB, [tex] CD\perp AB[/tex]
Therefore, by geometric mean property:
[tex]CD^{2} ={AD\times DB} \\ \\ {10}^{2} = AD\times 5 \\ \\ 100 = 5AD \\ \\ AD = \frac{100}{5} \\ \\ AD = 20[/tex]
AB = AD + DB
AB = 20 + 5
AB = 25 units
Given the graph, what is in initial value of the function?
(5 points)
A coordinate grid is shown with x and y axes labeled from 0 to 7 at increments of 1. A straight line joins the ordered pair 0, 1 with the ordered pair 6, 7.
a
1
b
5
c
6
d
7
Answer:
6
Step-by-step explanation:
I have a big thick lookin brain
Im not completely sure so please dont get upset with me. : )
how do i solve for y? what’s the answer?
Answer:
Hello!
A parallel line must equal 180 degrees. Thus, 6y plus 120 degrees must equal 180. First, subtract 120 from 180. This gives us 60. To find y, we divide 60 by 60. This gives us 10. So, our answer is y=10. This means that y is being multiplied 6 times to equal 60.
I hope this answer helped you! If it did, please rate it and give it a Thanks so other people can learn from it too!
Have a great day!
please help for points
Answer:
117 degrees
Step-by-step explanation:
These two angles are the same
Alvin is 15 years older than Elga. The sum of their ages is 77. What is Elga's age?
Answer: I think that it is 62
Step-by-step explanation:
77 minus 15= 62
tell me if its right.
hope this helps
what is the product of 3.54 and 3.7? show work / explain please!
helppppp............
Answer:
V=lwh
4x6x3
v=72
Answer:
72 cm
Step-by-step explanation:
for volume is pretty simple. All you have to do is multiply the length width and height of you're shape. Once you do that you get 72cm
I need to know what the answer to this problem is the right answer 4/8
A model car is 7.5 inches long made with a scale of 2 inches = 48 inches. How long is the actual car?
a) 15
b) 20
c) 180
d) 360
WILL MARK BRANLIEST!
Answer:
I'm pretty sure its 180 !!
Yep here we go again:
In the diagram below lines HA and BC are parallel. If angle GEC = 135 what is angle DEC?
If you don't know the answer or not sure please don't answer! :)
I will give brainliest to the best answer!
Hope you have a good day!
Answer:
let DEC=x
x-135=180
x=45°
supplementary angles
if 5,400,000
was written in scientific notation, what would be the exponent?
Answer:
hope it helped have a good day mate
Please help due today
Answer:
cubic hahahabqbnqnwnw
Mia ran 10 laps in 6 minutes. Shawna ran 5 laps in 4 minutes.
Which person ran at a faster rate? Use mathematics to justify your answer.
Answer:
mia
Step-by-step explanation:
mia: 10/6 per minute
shawn: 5/4 per minute
common denominator is 12, multiply by 2 and 3
20/12 lap per minute mia
15/12 laps per minute shawn
20 > 15
Alexandra has a home-based business putting on children’s parties. She charges $60 to design the party and then $4.00 per child. Write a function rule that relates the total cost of the party to the number of children n.
f(n) = 4 + 60n
f(n) = 4 – 55n
f(n) = 4n – 55
f(n) = 60 + 4n
Answer: I don't know/ A. f(n) = 4 + 60n
60+4n=cost. Because the number of children is multiplied by the cost for each child
i would say f(n)=60 +4n but i am probably wrong
Step-by-step explanation: other brainly's
f(n) = 4n + 60...or f(n) = 60 + 4n
f(n)=60+4n that is the correct answer!!!!!!
A survey was conducted at a local restaurant about the type of seating preferred by males and females. The results of the survey are shown i
the table.
Indoor Outdoor Total
Males
23
65
88
Females
47
13
60
Total
70
78
148
Approximately what percentage of those surveyed preferred indoor seating?
A. 47%
B. 53%
C. 70%
D. 78%
Answer:
c: 70
Step-by-step explanation:
Factor this expression.
4x - 16
OA. 4(x-4)
OB. 4(x - 12)
O C. 4(x-8)
O D. 4(x - 2)
Answer:
4(x-4)
Step-by-step explanation:
Both 4x and 16 have a positive 4 in common so you would take it out and that leaves you with x and -4 so those go in the parenthesis.
Move the red distribution at the top so that it aligns with the blue distribution. Now look at the green distribution at the bottom. How would you best interpret the green (bottom) distribution?
A- The distribution of differences between the sample means of each group has a mean at or near zero making it likely the two groups are not statistically different.
B- The distribution of differences between the sample means of each group has a mean at or near 325 making it likely the two groups are not statistically different.
C- The distribution of differences between the sample means of each group has a mean at or near zero making it likely the two groups are statistically different.
D- The distribution of differences between the sample means of each group has a mean at or near 325 making it likely the two groups are statistically different.
Answer:
A- The distribution of differences between the sample means of each group has a mean at or near zero making it likely the two groups are not statistically different.
Step-by-step explanation:
The distribution of both the red and blue is identical although the skewness differs slightly. The distribution of the two groups is identical and their mean is near to zero. The distribution of observation of the group provides clear view that these two groups are not statistically different.
Fill in the blanks to write the fraction 3/4 as in different ways
Answer:
1.3/4 × 2/2 = 6/8
2.3/4 × 3/3 = 9/12
3.3/4 × 4/4 = 12 /16
4. 3/4 × 5/5 = 15/20
is -2 9/11 a rational number or irrational number
Answer:
irrational
Step-by-step explanation:
9/11 is a decimal that gets repeated so it is irrational
Answer:
11
Step-by-step explanation:
calculate the Unknown Missing angle measures
Answer:
Step-by-step explanation:
c=180-123=57
b=180-123=57
d=180-57-55=68
a=180-68-57=55
a,b,c,d=55, 57, 57, 68 degrees
In a survey of 1800 people who owned a certain type of car, 1260 said they would buy that type of car again. What percent of the people surveyed were satisfied with the car?
Answer:
70%
Step-by-step explanation:
To find the percentage, we divide the number by the total.
The amount of people who said they'd buy it again is 1260, and the total is 1800.
1260/1800=0.7.
This means that 70% were satisfied with the car.
Answer:
70% you just take the amount of people that were satisfies divided by the overall amount of people. you'll get e decimal but just move the decimal place to get the percent.
Step-by-step explanation:
f (x) = 2x g(x) = 4x + 5 Find f (x) + 3g(x)
Answer:
f(x) + 3g(x) = 14x + 15
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightDistributive Property
Algebra I
Terms/CoefficientsFunction NotationStep-by-step explanation:
Step 1: Define
f(x) = 2x
g(x) = 4x + 5
Step 2: Find
Substitute in functions: 2x + 3(4x + 5)[Distributive Property] Distribute 3: 2x + 12x + 15Combine like terms: 14x + 15Which of these division problems have the same quotient as 12.3 divided by 0.4? Check all that apply.
A. 123 ÷ 4
B. 1.23 ÷ 0.4
C. 1,230 ÷ 40
D. 123 ÷ 0.04
Answer:
The answer is A and C
Step-by-step explanation:
The answer is A because 12.3 multiplied by 10 is 123, and 0.4 multiplied by 10 is 4.
12.3 * 10 = 123
0.4 * 10 = 4
So, this shows that this equation is the same as 12.3 divided by 0.4
The answer is C because 12.3 multiplied by 100 is equal to 1230, this is the same for 0.4
12.3 * 100 = 1230
0.4 * 100 = 40
So, the answer is both A and C.
Hope this helps! :)
Answer:
12.3 divided by 0.4 is 30.75
Step-by-step explanation:
You then go to letter A and 123/4 is also 30.75
but you go through the rest of the choices just in case.
B is 3.075 so that is incorrect
C is 307.5 so that is also incorrect
D is 3075 and that is incorrect and not 30.75.
Therefore your answer is A.
30.75 = 30.75.
Hope this helps :)
WILL MARK BRAINLEST
Answer:
x=13
Step-by-step explanation:
62+(4x+7)+(6x-5)+41+(3x+6)+(7x-11)=360
62+4x+7+6x-5+41+3x+6+7x-11=360
100+20x=360
20x=360-100
20x=260
x=260/20
x=13
In x^a=y, y^b=z, z^c=x, then prove that abc=1
Step-by-step explanation:
Let, x^a =y......(1) and
y^b =z.....(2) and
z ^c =x......(3).
Now, using (1) in (2) we get,
x ^ab =z......(4).
Now, using (4) in (3) we get,
x ^abc =x
or, x ^abc =x ^1
or, abc=1.
Hope it will help :)
Step-by-step explanation:
hope the above solution will help you
The measure of AOC is 90. Find the value of x.
Answer:
x = 10 degr
Step-by-step explanation:
3x + 46 + 14 = 90
3x + 60 = 90
3x + 60 - 60 = 90 - 60
3x = 30
x = 10 deg
Answer:
Step-by-step explanation:10
Please help me pass due
Answer:
226.98 rounded equals 226.98!
Have a great day!