Answer:
first option
Step-by-step explanation:
Given
area = 15x - 9 ← factor out 3 from each term
= 3(5x - 3)
Thus the dimensions are 3 by (5x - 3)
could you answer this question cause i need it for math
Step-by-step explanation:
5p/7-18=-43
5p/7=-43+18
5p/7=-25
5p=-25×7
5p=-175
p=-175/5
p=-35
not sure lol
Answer:
5p/7 = -43+18
5p/7 = -25
5p= -25*7
p = -35
Step-by-step explanation:
Chris's age is 17 more than one-fourth of Brian's age. How old is Chris if Brian is 27?
Answer:
23.75
Step-by-step explanation:
Given that:
Brian's age = 27
Age of Chris is 17 more than one - fourth of Brian's age.
To find:
Age of Chris = ?
Solution:
Let age of Chris = [tex]x[/tex]
One - fourth of Brian's age = [tex]\frac{27}{4}[/tex]
17 more than One - fourth of Brian's age = [tex]\frac{27}{4}[/tex] + 17
Therefore, we can write the equation as per question statement:
[tex]x = \frac{27}{4} + 17\\\Rightarrow x = 6.75+17\\\Rightarrow \bold{x = 23.75}[/tex]
Therefore, Chris is 23.75 years old if Brian is 27.
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
helpmepleasethankyou:)
Answer:
Step-by-step explanation:
If we take 1 cup of Original purple paint,
Ratio of blue and red paint = 2 : 3
Quantity of blue paint in 1 cup of the mixture = [tex]\frac{2\times (1)}{(2+3)}[/tex] = 0.4 cups
Similarly, ratio of blue and red paint in the New purple paint = 5 : 7
If we take 1 cup of New purple paint,
Amount of blue paint in 1 cup = [tex]\frac{5\times 1}{(5+7)}[/tex] = 0.42 cups
Therefore, shade of both the mixtures will not be same.
Since, blue color is more in quantity in New purple paint, it will be more blue than Original purple paint.
find a range of values for x
Answer:
22
Step-by-step explanation:
Work out the value of x.
4X - 57
3x + 25
3x + 15
2x - 3
4x
The diagram is not drawn to scale
Three ballet dancers are positioned on stage. Greta is straight behind Bryan and directly left of Alice. If Bryan and Greta are 12 meters apart, and Alice and Bryan are 13 meters apart, what is the distance between Greta and Alice?
Answer:
12
Step-by-step explanation:
Which reason is missing in step 2?
CPCTC
definition of supplementary angles
triangle parts relationship theorem
O triangle angle sum theorem
ΔHKJ and ΔLNP are similar triangle due to equal pair of corresponding angles .
What are Similar Triangles?Similar triangles are defined as two triangles with the same shape, equal pair of corresponding angles, and the same ratio of the corresponding sides.
Given,
m∠H = 30°
m∠J=50°
m∠P=50°
m∠N=100°
In triangle ΔHKJ
m∠H = 30°
m∠J=50°
m∠K= 180°- (m∠H+m∠J) = 180°-(30°+50°)
m∠K= 100°
In ΔHKJ and ΔLNP,
m∠J = m∠P= 50°
m∠K= m∠N= 100°
According to Angle-Angle (AA) rule, two triangles are said to be similar if two angles in one particular triangle are equal to two angles of another triangle.
Thus, ΔHKJ and ΔLNP are similar triangle due to equal pair of corresponding angles.
Hence, ΔHKJ ~ ΔLNP
learn more about similar triangle
https://brainly.com/question/25882965
Find the equation of a line given 2 coordinates (5, 5) and (-2, -2)
if you could write the equation and show work that would be great!! whoever answers and is correct i WILL mark brainliest :)
Answer:
y=x
Step-by-step explanation:
using slope intercept form and slope formula so y=x
Answer:
y=mx+c
x co-ordinates is 5 & -2
y co-ordinates is 5 & -2
m is the gradient so you have to do change in y over change in x (basically the difference in the y axis )
so change in y : (-2)-5 = -7
change in x: (-2)-5= -7
so divide this and you get 1 which is m
Now the equation is y= 1x+C but x=1 theoretically
therefore all you do now is substitute the values onto the equation to find C. ALWAYS USE THE SAME SET OF COORDINATES.
5=1(5)+ C
5=5+C
C= 0
equation is y=x
Step-by-step explanation:
Find the inverse function of f(x)=15x-1
Answer:
f'(x) = (x + 1)/15
Step-by-step explanation:
f(x) = 15x -1,
Think of the term "f(x)" as a single variable, then solve for the term "x", manipulate the equation like how one would manipulate a literal equation, by inverse operations.
f(x) = 15x - 1
+1 +1
f(x) + 1 = 15x
/15 /15
(f(x) + 1)/15 = x
This means that (denote in the way one would denote an inverse of a function);
f'(x) = (x + 1)/15
f(n) = n^3– 2n
g(n)= 2n + 2
Find (f •g)(n)
Answer:
[tex]\boxed{(f~.~g)(x) = 2n^4 + 2n^3 - 4n^2 -4n}[/tex]
.
Step-by-step explanation:
We know that
[tex]f(n) = n^3 - 2n[/tex]
[tex]g(n) = 2n + 2[/tex]
.
So
[tex](f~.~g)(x) = f(n)~.~g(n)[/tex]
[tex](f~.~g)(x) = (n^3-2n)(2n + 2)[/tex]
[tex](f~.~g)(x) = n^3(2n + 2) - 2n(2n + 2)[/tex]
[tex](f~.~g)(x) = 2n^4 + 2n^3 - 4n^2 -4n[/tex]
Answer:
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Step-by-step explanation:
bs ak la ya s dyua youa au ab fusn aigska
an underground mine elevator descends 12% of the total depth every minute. the total depth of the elevator is 75 meters below the ground. How many meters below the ground is the elevator after 2 mins
a. -18 meters
b. -9 meters
c. -4.5 meters
d. -22.5
what is the slope of this line? please please help me
Answer:
its 0 slope
Step-by-step explanation:
ok so tomorrow i have exams omg haha im so scareddd!!!!!
Answer:
Best of luck! I hope your exam goes well!!!
Please answer this question.
Answer:
C) 78
Step-by-step explanation:
its technically 77.5714... but rounds to 78, hope that helps
Answer:
It is 78 because when placed in numerical order it is in the middle
PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELPPPPPPPPPPPPPPPPPP
Your Explanation:
Answer:
No because if you set them equivelent to each other you get 12=0
Step-by-step explanation:
1/4(12x + 24) - 9x = -6(x + 1)
3x + 6 - 9x = -6x - 6
-6x + 6 = -6x - 6
12 = 0x
I hope this helps
Erica sells magazine subscriptions and makes a flat rate of $5.35 for each subscription she sells. If Erica made $42.80 on Monday, $64.20 on Tuesday and $74.90 on Wednesday, how many subscriptions did she sell in the three days
to find the number of subscribtion sold we divide the money she made by the price of subscription
monday:
42.80/5.35=8 subscriptions sold
tuesday:
64.20/5.35=12 subscriptions sold
wednesday:
74.90/5.35=14 subscriptions sold
8+12+14=34 subscriptions sold in 3 days
Answer:
34 subscriptions she sold
Im really confused bc ive tried everything and i cant figure this out
-3 7/10 = -3/-4y
its a rational equation
Answer:
y = - [tex]\frac{15}{74}[/tex]
Step-by-step explanation:
Given
- 3 [tex]\frac{7}{10}[/tex] = [tex]\frac{-3}{-4}[/tex] y = [tex]\frac{3}{4}[/tex] y ( change the mixed number to an improper fraction )
- [tex]\frac{37}{10}[/tex] = [tex]\frac{3}{4}[/tex] y
Multiply through by 20 ( the LCM of 10 and 4 )
- 74 = 15y ( divide both sides by 15 )
- [tex]\frac{74}{15}[/tex] = y
Circle theorems maths... Please help me!
Answer:
m = n = 14°
Step-by-step explanation:
The angle at the centre is twice the angle at the circumference subtended on the same arc.
angle at circumference = 0.5 × 98° = 49°, then
35° + m = 49° ( subtract 35° from both sides )
m = 14°
Angles subtended on the same arc are congruent.
m and n are 2 such angles, thus
n = m = 14°
Part C Whose puppy weighed the most when the person got it? How much did it weigh?
Answer:
Olivia's puppy, it weighed 5 pounds.
Step-by-step explanation:
Answer:
Olivia's puppy and the amount of pounds the puppy gained is 5 pounds
Step-by-step explanation:
The product of 15 and a number x is −75.
Answer:
the solution is in the figure
the number is -5
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1. Write an equivalent expression in standard form, and collect like terms(Combining like terms)
2. Express the answer from Part A as an equivalent expression in factored form.
Answer:
4x-10y
Step-by-step explanation:
Look at the pic...
Answer:
4x + 2y
Step-by-step explanation:
1. 4x - 3(x - 2y) + 1/2(6x - 8y)
4x - 3x + 6y + 3x - 4y
4x + 2y
2. 4x - 3(x - 2y) + (1/2)(6x - 8y) =
4x - 3x + 6y + 3x - 4y =
4x + y(6 - 4) = 4x + 2y = 2(2x + y)
I hope this helps
A man is trying to fit a washing machine into a corner of a four-sided room. He knows that all the walls are perfectly straight, but he is not sure if the corner is an exact right angle. If the other three corners are all 90° angles, what is the measure of the missing corner?
The following is a list of heights for 6 six-year-olds.
50 inches, 47 inches, 36 inches, 42 inches, 47 inches, 45 inches
The median height for these children is 46 inches.
What would happen to the median height if the 50-inch measurement was changed to 47 inches?
A. The median would increase.
B. The median would decrease.
C. The median would stay the same.
D. The median would decrease, then increase.
Answer:
option b the median would decrease
What is the value of b?
Answer:
128
Step-by-step explanation:
Add the two numbers then subtract from 360
Can anybody help with this?
Answer:
12
Step-by-step explanation:
Because < this means less than. So therefore 5 is less than 12
The blue and orange lines represent a system. Use the sliders to manipulate the orange line to determine which equations would create a system that has no solution. Check all that apply. Hint: Convert to slope-intercept form.
2x + y = –5
y – 3 = 2x
x + y = –2
–2x = y
2x = 4 – y
Answer:
A) 2x + y = -5
D) -2x = y
E) 2d = 4 - y
Step-by-step explanation:
Answer:
The answers you are looking for is.... A) 2x + y = -5
D) -2x = y
E) 2d = 4 - y
Step-by-step explanation:
-4x -2y = -12
4x + 8y = -24
x= 6 and y= -6
Step-by-step explanation:
Answer:
x = 6, y = -6
Step-by-step explanation:
After adding the equations together, the 4x and -4x cancel each other out. This makes our new equation:
6y = -36
Divide both sides by 6
y = -6
Plug -6 into y in one of the equations
4x + 8y = -24 =
4x + 8(-6) = -24 =
4x - 48 = -24
Add 48 to both sides
4x = 24
Divide both sides by 4
x = 6
(-3f+9)-(2-6f) what’s the answer
Answer:
jhi
Step-by-step explanation:
Answer:
3f+7
Step-by-step explanation:
In a sale the price of a sofa is reduced by 70%. The price is £255 Work out the price before the sale
Answer:
850
Step-by-step explanation:
850*0.3=255