Answer:
It would cost $18.62 for 3.8 pounds.
Step-by-step explanation:
You divide $22.05 by 4.5. That is the cost per pound. After that you multiply the number you get by 3.8.
what is the degree of the following polynomial 2x^3
Answer:
3
Step-by-step explanation:
Whatever the highest exponent is determines the degree.
Explain how to solve the equation 21 = m +14. What is the value of m?
Enter your explanation and answer in the space provided.
Answer:
m = 7
Step-by-step explanation:
21 = m + 14
21 - 14 = m
m = 7
A number n increased by 4 is -19
Answer:
n=23
Step-by-step explanation:
4-23=19
meme
Answer:
-23
Step-by-step explanation:
-23+4= -19
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
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 .
Evaluate the algebraic expression x^2 - 20 for x = 7 and for x = 9
Answer:
29
61
Step-by-step explanation:
x^2 - 20
x = 7 and 9
Evaluate
___________
We know the values of x, let's substitute them with the x in the problem :
(7)^2 - 20
49 - 20
29
(9)^2 - 20
81 - 20
61
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
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]
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:
if you could anwser the second question that would be great caus e i only get to do this proble once :) no explanation needed
Angle 1 and 2 are equal because of correspondence angle
so , (78-2x) = (89-3x)
x = 89 - 78
x = 11
hence angle 1 = ( 78 - 2*11) = 56
and angle 2 = ( 89-3*11) = 56
So, both of angle is 56
hope it help and your day will full of happiness
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
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
7. What is the slope of the line that passes through the points (14, -18) and (5, -12)?
Answer:
slope =[tex]-\frac{2}{3}[/tex]
Step-by-step explanation:
Use the slope formula [tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex] to find the slope, or [tex]m[/tex]. The [tex]x_1[/tex] and [tex]y_1[/tex] represent the x and y values of one point, and the [tex]x_2[/tex] and [tex]y_2[/tex] represent the x and y values of another point. So, substitute the x and y values of the points (14, -18) and (5, -12) into the formula and solve:
[tex]m = \frac{(-12)-(-18)}{(5)-(14)}\\m = \frac{-12+18}{5-14}\\m = \frac{6}{-9} \\m = -\frac{2}{3}[/tex]
Thus, the slope is [tex]-\frac{2}{3}[/tex].
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.
-7m²-10m+17
common factor
Answer:
Greatest common factor of 17
So, the prime factors of 45 are 3, 3, and 5. The Greatest Common Factor is the greatest number that is common (that is, in both lists). It is 17. Since 17 is a factor of itself and of 51 -- which is 3 x 17 -- then the greatest possible common factor is 17!
Step-by-step explanation:
Add and subtract the second term to the expression and factor by grouping.
- (m - 1 )( 7m + 17 )
Please Help. Im stuck on this question and i cant figure it out
Answer:
Where is it?
Step-by-step explanation:
Where is the question exactly?
102 = 1.2 x w
what is w?
Answer:
122.4
Step-by-step explanation:
Just Divide.
Answer:
85
Step-by-step explanation:
1x2 x 85 = 102
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
How do solve for x in supplementary ,complementary and vertical angles
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)
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
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.
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]
simplify this equation: 2^-4 (2√3)^2
Answer:
download photo math you can take pictures of math problems and will solve them.
PLEASE GUYSSSSSSSSSSSSSSSSS
Answer: (hopefully I didn't make a mistake :D )
y=-3+21
Step-by-step explanation: (I can't sketch the graph for you)
First you need to find the slope of the line passing through the points (5,4) and (-7,0). This can be done using the point-slope form of a line.
Point 1: (-7,0)
Point 2: (5,4)
y2-y1=m(x2-x1)
m= (y2-y1)/(x2-x1) = (4-0)/(5-(-7)) = 4/12= 1/3
Now, when two lines are perpendicular, they are negative recopricols. So the slope of the line would be -3.
Since the equation of the line you are trying to find passes through the point (4,9), using point-slope formula again and solve for y.
y-9=-3(x-4)
y= -3x+12+9
y=-3x+21
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
HELP I WILL GIVE LOTS OF POINTS FOR IT
Answer:
(1,3)
Step-by-step explanation:
because that is where they intersect
Answer:
y=4x-1y=−x+4
Step-by-step explanation:
You travel 36 miles north and then 15 miles east. How far are you from your starting point?
Answer:
21 is the correct answer because
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.
It takes Serina 0.25 hours to drive to school. Her route is 16 km long. What is Serina’s average speed on her drive to school?
Answer:
64 km/hr
Step-by-step explanation: