+4x +2 = 0
4x = -2
x = -0.5 = -1/2
A jacket is reduced by 12% to £66 in a sale.
Find the original price.
Answer:
£75
Step-by-step explanation:
100-12=88
88÷88=1%
66÷88=0.75
1%=0.75
times by 100
100%=£75
Urgent help on math plz
Answer:
x = 14
Step-by-step explanation:
First, organize your work by showing that lines are similar
Line KV is similar to line RV
Line UV is similar to line LV
etc, etc.
=========================================
Now notice that line KV and line RV have the numbers 9 and 18 accordingly
and notice that it's an x2 difference.
==============================================
Now apply the same thing to line UV and LV and divide 26 by 2
That gets us 13
=======================================
Now plug 13 into the equation (2x - 15)
2x - 15 = 13
==========================================
Now solve for X
2x - 15 = 13
Add 15 to each side
2x − 15 + 15 =13 + 15
2x = 28
Divide both sides by 2
2x / 2 = 28 / 2
x = 14
I have to turn it in by tonight
Answer: (x,y) -> (x,-y)
Step-by-step explanation:
If you take any point, for example (-1,1) from the blue shape, you have to multiply the y value by -1 to get to (-1,-1) for the red shape. You can test it out with any point on the two figures.
Also, by looking at it, you can see that it is a reflection over the x axis and a reflection over the x axis always just multiplies the y value by -1.
Ali has invited 18 adults and 6 children to a cookout.
Mo, Ali’s best friend, suggests that Ali seat an equal number of adults and an equal number of children at each table.
What is the greatest number of tables Ali could use? How many adults and how many children would be seated at each table? Explain.
Answer:
Ali could use 6 tables. There would be 3 adults
and 1 child seated at each table.
Step-by-step explanation:
GCF to find the number of tables:
18: 1, 2, 3, 6 , 9, 18;
6: 1, 2, 3, 6 .
What is the perimeter of parallelogram ABDC?
14 cm
13 cm
12 cm
11 cm
Answer:
13 cm
Step-by-step explanation:
Add up all of the sides and you should get 13.
3 + 3 + 3.5 + 3.5 = 13
which of the following represents the average rate of change of the function f(x) = 2x - 3
Average rate of change, Correct Answer is (0,-3)
5x+4y=16 -2x-4y=-4
Show your step by step process.
Solve the system of linear equations.
Answer:
x=1 and y= 5[tex]\frac{1}{4}[/tex]
Step-by-step explanation:
To solve this, lets take the first equation and find the x value.
Because it is ordered in standard form, we need to convert to slope-intercept form, and isolate the y.
5x+4y=16
-5x -5x
4y=-5x+16
÷4 ÷4 ÷4
y=[tex]\frac{-5}{4}[/tex]+4
or
y=-1[tex]\frac{1}{4}[/tex]+4
or
y= 5[tex]\frac{1}{4}[/tex]
Now that we have the y value, we can use this to find the x value by inserting it into either equation, since they both have y values in them. Going with the first one again, lets try it:
5x+4([tex]\frac{-5}{4}[/tex]+4)=16
5x-5+16=16
5x+11=16
-11 -11
5x=5
÷5 ÷5
x=1 and y= 5[tex]\frac{1}{4}[/tex]
it is 212.5°C outside when the temperature starts increasing by 2.5°C each hour. How long will it take for the temperature to reach 25°C?
Answer: 75 hours
Step-by-step explanation:
Assuming you meant decreasing... you find out the span between 212.5 and 25 which is 187.5 and then divide it by 2.5 (which is the change)
Please help me!! I don’t get this
Nineteen less than 6 times a number is the same as 16 more than the number. The equation is The solution is x -7 7.
Answer:
The number is 7
Step-by-step explanation:
let the said number be x
Nineteeen less than 6 times a number;
6x - 19
equals; 16 more than the number; this is 16 + x
Thus;
6x - 19 = 16 + x
6x-x = 16 + 19
5x = 35
x = 35/5
x = 7
PLEASEEEE HELP ME!!
The area of a rectangular poster board can be represented by the expression
64x²y. If the width is 16xy, which expression represents the length of the poster
board?
A = length * width
Answer:
Step-by-step explanation:
A = length * width
Length = A ÷ width
[tex]= \frac{64x^{2}y}{16xy}\\\\= 4*x^{2-1}*y^{1-1}\\\\= 4x^{1}*y^{0}\\\\= 4x*1\\=4x[/tex]
please solve ILL MARK YOU BRAINIEST!!!!!!!
Answer:
14. 4 + x - 2
15. 8k - 3k
16. 5 + 2y + 15
Step-by-step explanation:
14. "sum" means adding, "minus" means subtract
sum of four and x: 4 + x
minus two: 4 + x - 2
15. "product" means multiplying, "decreased by" means subtract, "times" means multiply
the product of k and 8: 8k
three times k: 3k
the product of k and 8 decreased by three times k: 8k - 3k
(Depending on what the question is asking, you may or may not need to simplify this to 5k (8k - 3k = 5k))
16. "more" means add, "plus" means add, "twice" means multiply by two
five: 5
plus twice y: 5 + 2y
fifteen more: 5 + 2y + 15
If a = -2, then what is the value of -2a+ 3?
and
If y = 3, what is the value of -3y - 1?
Step-by-step explanation:
1) 7
2) -4
hope this helps
Find each difference. If you get stuck, consider drawing a number line diagram.
9 − 4
4 − 9
9 − ( - 4 )
- 9 − ( - 4 )
- 9 − 4
4 − ( - 9 )
- 4 − ( - 9 )
- 4 − 9
The numbers 1–15 are written on note cards and placed in a bag. One card will be drawn from the bag at random. 1. List the sample space for this experiment. 2. Are the events, selecting an even number and selecting an odd number, equally likely? Explain your answer. 3. Are the events, selecting a number divisible by 3 and selecting a number divisible by 5, equally likely? Explain your answer.
Yes I believe they are 1 to 15. If I'm not wrong please dont report me.
Which rectangle is similar to rectangle ABCD
Answer:
JKLM is similar to ABCD
Step-by-step explanation:
The permeters of the triangles shown are equal. Find the side lengths of each triangle
AB=
BC =
AC=
PQ=
QR=
PR=
Answer:
AB = 51
BC = 50
AC = 42
PQ = 42
QR = 42
PR = 59
Step-by-step explanation:
Perimeter of ∆ ABC = Perimeter of ∆ PQR
3x + 9 + 3x + 8 + 3x = 3x + 3x + 4x + 3
9x + 17 = 10x + 3
17 - 3 = 10x - 9x
14 = x
.: x = 14
AB = 3x +9 = 3×14+9 = 42+9 = 51
BC = 3x +8 = 3×14+8 = 42+8 = 50
AC = 3x = 3×14 = 42
PQ = 3x = 3×14 = 42
QR = 3x = 3×14 = 42
PR = 4x +3 = 4×14+3 = 56+3 = 59
A: h=12t
B: t = 12h
C: c= h/12
D : h= c/12
PLEASE HELP THANKS IF U DO
Answer:
D i think is the answer
Step-by-step explanation:
im not sure ok so im just helping
If f(1) = 9 and f(n) = 4f(n − 1) then find the value of f(4).
Answer:
576
Step-by-step explanation:
f(2) = 4f(1) = 4*9 = 36
f(3) = 4f(2) = 4 * 36 = 144
f(3) = 4f(3) = 4 * 144 = 576
The value of y varies directly with x. When y = 75, X = 3. What is the value of y when * is is 21
Answer:
7
Step-by-step explanation:
21 / 3 = 7
I hope this helps u! :D
Please help.17 Points
Answer:
9738.2
Step-by-step explanation:
cus I'm right 84920021
How do solve for x in supplementary ,complementary and vertical angles
Write this percentage as a fraction in its simplest form.
65%
Answer:
13/20
Step-by-step explanation:
Answer:
[tex]\frac{13}{20}[/tex]
Step-by-step explanation:
Put the percentage over 100: [tex]\frac{65}{100}[/tex]
Simplify: [tex]\frac{13}{20}[/tex]
fill in the table using the function rules
In the figure below, find the exact value of z.
9514 1404 393
Answer:
z = 9/2
Step-by-step explanation:
The triangles in the figure are all similar, so the side lengths are proportional.
long side/hypotenuse = z/6 = 6/8
z = 36/8 = 9/2 . . . . multiply by 6
Help pls, answer choices listed also
Answer:
A.
Step-by-step explanation:
Hi there!
By factoring the trinomial, we end with (x-9)(x-4)
However, we aren’t done yet. To find the zeros, set each expression equal to zero, so it looks something like this.
0 = x - 9
0 = x - 4
Using orders of operations, x = 9 and x = 4
Therefore, A is your answer.
I hope this helps!
The figure is a rectangular prism. Identify which one of the line segments in the given figure is perpendicular to . HG
A) BC
B) FG
C) EF
D) BF
Answer:
B
Step-by-step explanation:
i will give brainliest if answered correctly :D 5/1 (the fraction) MINUS 6!
Answer:
-1
Step-by-step explanation:
5/1 would equal 5.
5-6=-1
hope it helps!
THE ANSWER IS -1 OKAYYYYyyyyyyyyyyy. sorry i had to write more than 20 letters
how would I solve this
Answer:
x=12
Step-by-step explanation:
subtract each side by five since it is the inverce oporation
In a sale all the prices are reduced by 30%. Calculate the sale price of the following items
a bike that cost £250
b. a pair of gloves that cost £3.20
Answer:
A: 26.89
B: 0.96
Step-by-step explanation:
70 percent of 250 is 26.89. 70 percent out of 3.20 is 0.96.