Answer:
$12.1
Step-by-step explanation:
Let price of each CD before tax=x
Total number of CD=6
Total price of 6 CD including tax=$80.40
Tax of each CD=$1.30
We have to find the price of each CD before tax.
Total tax of 6 CD=[tex]6\times 1.30=[/tex]$7.8
Total price of CD=Price of CD before tax+ tax of 6 CD
[tex]80.40=6x+7.8[/tex]
[tex]6x=80.40-7.8[/tex]
[tex]6x=72.6[/tex]
[tex]x=\frac{72.6}{6}=12.1[/tex]
Hence, the price of each CD before tax=$12.1
Simplify the following (3 √40)(4 √5)
Answer:
169.70
Step-by-step explanation:
Answer:
120[tex]\sqrt{2}[/tex]
Step-by-step explanation:
3[tex]\sqrt{40}[/tex] · 4[tex]\sqrt{5}[/tex] = (3[tex]\sqrt{5}[/tex]·[tex]\sqrt{4}[/tex]·[tex]\sqrt{2}[/tex]) x 4[tex]\sqrt{5}[/tex]
= 3 · 2 · 5 · 4 [tex]\sqrt{2}[/tex]
= 120[tex]\sqrt{2}[/tex]
What is the surface area of this triangular pyramid?
Answer:
12+3*2.6
You should be able to solve that.
Step-by-step explanation:
Which expression is equivalent to -4x - 36?
A.4(x-9)
B. 2(2x-18)
C.-2(2x-18)
Answer:
-4(x+9)
Step-by-step explanation:
There are 115 students in a music club 73 of them are girls what is the ratio of the number of boys and girls
Answer:
73:42
Step-by-step explanation:
1115-73=42
G : B
73 : 42
Please help me. I need how to do the problem too
Answer: Choice A. (8, 4)
==========================================================
Explanation:
Because x = 2y, we can replace every copy of x with 2y
Let's do so in the second equation
3x - 4y = 8
3(x) - 4y = 8
3(2y) - 4y = 8 .... x replaced with 2y; now let's isolate y
6y - 4y = 8
2y = 8
y = 8/2 ..... divide both sides by 2
y = 4
Use this y value to find x
x = 2y
x = 2*4
x = 8
So we have x = 8 and y = 4 pair together to get the answer (x,y) = (8, 4) which is choice A.
Please answer this. Please and thank you.
Answer:
As you can see, the -4 and -1/4 coefficient values are automatically different, and will resultantly produce different answers in the solutions.
The solutions are related, as the two numbers are reciprocals, as well as both being negative values.
Hope this helped !
on a girls volleyball team 9 out of 12 team members have played in previous years based on this information if 80 girls are in a volleyball league than how many could be expected to have played the year before?
Answer: I believe the answer is 60
Step-by-step explanation:
9/12 = 3/4
If we do cross multiplying x over 80 times 3/4 it equals 60.
I am sorry if it is not correct I'm not fully sure but I hope this helped!!
What is the y intercept and slope and the linear equation for this?
PLEASE HEELPP!!!
State the Quadratic Equation in words:
Answer:
Step-by-step explanation:
negative b plus or minus the square root of b squared minus four times a times c all over 2a
One more
will give brainliest
Answer:
The answer is 60 degrees
Step-by-step explanation:
Find the distance between points P(6, 3) and Q(4, 9) to the nearest tenth
is it A 15.6, B 8, C40, D6.3
Answer:
answer is rounded to the nearest tenth D, 6.3
Step-by-step explanation:
just plug those numbers into the distance formula
Complete the equation of the line whose slope is − 7 and y-intercept is ( 0 ,13)
Answer:
y=-7x+13
Step-by-step explanation:
y=mx+b
m= your slope
b= your y intercept
why are u ugly sbadjBCBJXZBDFChd Sb çƒ√siub cvsxdhjb fsb zf jb
Answer:
आपको अपने पापों के लिए पश्चाताप करना चाहिए । वे तुम्हें नष्ट कर देंगे । आप कोई मौका नहीं खड़े हैं । तुम उसके हाथ पर मर जाओगे । पछताना
Step-by-step explanation:
its just so simple! :D
what is 50% of 70
what is 92% of 19
Answer:
Step-by-step explanation:
50% of 70=35
92% of 19= 17.48
Can someone help me please
Answer
43
Step-by-step explanation:
Find wz 7x-6. 3x+14
Answer:
x = 5
Step-by-step explanation:
7x - 6 = 3x + 14
7x - 3x = 14 + 6
4x = 20
x = 20/4
x = 5
The value of WZ of the rectangle is WZ = 29 units
What is the Perimeter of a Rectangle?The perimeter P of a rectangle is given by the formula, P=2 ( L + W) , where L is the length and W is the width of the rectangle.
Perimeter P of rectangle = 2 ( Length + Width )
Given data ,
Let the length of the rectangle be represented as L
The measure of side WZ = 7x - 6
The measure of side XY = 3x + 14
Now , for a rectangle , the two parallel sides are having similar lengths
So , the measure of side WZ = measure of side XY
Substituting the values in the equation , we get
7x - 6 = 3x + 14
On simplifying the equation , we get
Subtracting 3x on both sides of the equation , we get
4x - 6 = 14
Adding 3 on both sides of the equation , we get
4x = 20
Divide by 4 on both sides of the equation , we get
x = 20/4
x = 5 units
Now , the measure of side WZ = 7x - 6
The measure of side WZ = 7 ( 5 ) - 6
The measure of side WZ = 35 - 5 = 29 units
Hence , the measure of side WZ is 29 units
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Cam and Madison were investing money into two different accounts. They both invested $550
each. Cam invested into an account at an annual interest rate of 2.7% compounded monthly and
Madison invested into an account that had an annual interest rate of 3% compounded quarterly.
Which statement below best describes the two accounts after 5 years?
Answer:
After 5 years, Cam's account will have $ 616.04 while Madison's account will have $ 638.53.
Step-by-step explanation:
Given that Cam and Madison were investing money into two different accounts, both investing $ 550 each, and Cam invested into an account at an annual interest rate of 2.7% compounded monthly while
Madison invested into an account that had an annual interest rate of 3% compounded quarterly, to determine the balances of both accounts after 5 years, the following calculations must be performed:
Cam
X = 550 (1 + 0.027 / 12) ^ 5x12
X = 550 (1 + 0.027 / 12) ^ 60
X = 616.04
Madison
X = 550 (1 + 0.03 / 3) ^ 5x3
X = 550 (1 + 0.03 / 3) ^ 15
X = 638.53
Thus, after 5 years, Cam's account will have $ 616.04 while Madison's account will have $ 638.53.
A rectangle has an area of 248m2.
One of the sides is 4m in length.
Work out the perimeter of the rectangle.
Step-by-step explanation:
In a rectangle
Area (A) = 248 m²
length (L) = 4 m
breadth (b) = ?
We know
A = L * b
248 = 4 * b
b = 62 m
Now
Perimeter of the rectangle
= 2 ( L + b)
= 2 ( 4 + 62)
= 2 * 66
= 132 m
Hope it will help :)
Answer:
first we have to get the width.
A=L*w
so, A =L *W
L L
W=A
L
248m²=4m*W
248m²=4m*w
4m 4m
w=248m²
4m
w=32m
now we can find the perimeter.
p=2(L+w)
p=2(4m+32m)
p=2(36m)
p=72m
there for the answer is 72m
List the constant(s) in 2ab + 8 + c - 10
Answer:
Constants: 8 and 10
Step-by-step explanation:
Help me solve this problem
13.
Answer: midpoint is ( 1.5 , 0 )
Step-by-step explanation:
pls help! will give brainlist!
which equation represents the line the passes through the points (4,7) and (-2,-2)?
Answer:
Step-by-step explanation:
I would say the answer is 3/2x +1
PLEASE HELP!! SEE BELOW WILL GIVE BRAINLIEST!!
Answer:
some of the ang
3s on the triangle are the same so if you put that down according as I am a smart dude an examiner would give you some sort of mark
I think
Andy has an entertainment budget each month. In January, Andy decided to use his budget
for a music streaming service and a trip to the movie theater with his friends. After spending
$14.99 on the streaming subscription, Andy still had $40.01 left to spend at the movie
theater
Answer:
I really dont know
Step-by-stwp explanation:
98
Find the measure of the angle indicated. 6
Figure
Solve for x
Find measure of angle indicated
2)
M2U
1)
S
T
80
24x+4
1
6+21x
U
mZC
3)
4)
20
B
[21x+6
24x + 4 21x+6
D
Answer:
1) m∠U = 90°
2) m∠C = 80°
Step-by-step explanation:
1) The given figure is a quadrilateral
The sum of the interior angles of quadrilateral = 360°
∴ The sum of the interior angles of the given figure = 360°
Therefore, we have;
80° + 24·x + 4 + 6 + 21·x + 90° = 360°
80° + 45·x + 10 + 90° = 360°
x = (360°- (80° + 10° + 90°))/45 = 4
x = 4
m∠U = 6 + 21·x = 6 + 21 × 4 = 90
m∠U = 90°
2) The sum of the interior angles of the given quadrilateral = 360°
∴ 21·x + 6 + 20·x + 24·x + 4 + 21·x + 6 = 360°
86·x + 16 = 360°
x = (360° - 16°)/86 = 4
x = 4
m∠C = 20·x = 20 × 4 = 80
m∠C = 80°
3) In the figure, some angles are left out, therefore, more information on the remaining angles required
When Sally was a Freshman, her soccer team had 13 players. By her senior year, Sally’s soccer team grew to 17. What is the percent increase?
Answer:
about 31 percent
Step-by-step explanation:
7) On a farm, there are some cows and birds.
There are 35 total heads and 110 total
legs. How many cows and how many
birds are there?
Answer:
Step-by-step explanation:
"On a farm, there are some cows and birds."
c and b are the number of cows and birds, respectively.
"There are 35 total heads"
c+b = 35
b = 35-c
"110 total legs."
4c + 2b = 110
4c + 2(35-c) = 110
4c + 70 - 2c = 110
2c = 40
c = 20
b = 35-c = 15
20 cows and 15 birds.
Guys I really need help this is due and I have been on this question for 2 hours.
5. Reflection: Marissa wants to describe the relationship between the scale factor and perimeter of an image and its pre-image and between the scale factor and area of an image and its pre-image. What should she say about the relationship between the scale factor and perimeter of an image and its pre-image? What should she say about the relationship between the scale factor and the area of an image and its pre-image?
Answer:
see below
Step-by-step explanation:
Answer in your own words:
Scale factor = Dimensions of the new shape ÷ Dimensions of the original shape. Which can also be used to calculate the dimensions of the new figure or the original figure by simply substituting the values in the same formula.
• The scale factor of a dilated figure is denoted by 'r' or 'k'.
• If the scale factor is more than 1 (k > 1), the image is enlarged.
• If the scale factor is less than 1 (0< k <1), the image is contracted.
• If the scale factor is 1 (k = 1), the image remains the same.
• The scale factor cannot be zero.
Scale factor = k
Pre-image lengths: a, b
(perimeter = 2a + 2b)
Image lengths: ka, kb
(perimeter = 2ka + 2 kb or k (2a + 2b))
Marissa needs to say that the perimeter of the image is the perimeter of the pre-image times the same scale factor.
area of the pre-image = ab
area of the image = (ka)(kb) or k^2 (ab) (The area of the image is the area of the preimage times the square of the scale factor)
Scale factor 5 (then repeat it with scale factor 6)
length of the pre-image = 3 x 4
(perimeter = 2 (3 + 4) = 2(7) = 14)
length of the image = (3x5) x (4x5) = 15 x 20= 300
(perimeter = 2 (15 + 20) = 2 (35) = 70 or 14 x 5 = 70
area of the pre-image = 3 x 4 = 12
area of the image = 15 x 20 = 300
12 x (5^2) = 12 x 25 = 300
Which equation represents a line that passes through (2, -1/2) and has a slope of 3?
A) y-2=3(x+1/2). B)y-3=2(x+1/2)
C)y+1/2=3(x-2)
D)y+1/2=2(x-3)
Answer:
C
Step-by-step explanation:
The line passes through the point (2, -1/2) and has a slope of 3.
We can use the point-slope form, given by:
[tex]y-y_1=m(x-x_1)[/tex]
Where (x₁, y₁) is a point, and m is the slope.
Let (2, -1/2) be (x₁, y₁). We will substitute 3 for m. Therefore:
[tex]\displaystyle y-\Big(-\frac{1}{2}\Big)=3(x-(2))[/tex]
Simplify:
[tex]\displaystyle y+\frac{1}{2}=3(x-2)[/tex]
Therefore, our answer is C.
how do I find it ? Help me please
Answer:
14x² + 41x + 15
Step-by-step explanation:
............
Write the following numbers in order of size start with the smallest. 0.32 0.4 0.35 0.309
Answer:
Hey!
0.309<0.32<0.35<0.4
hope this helps you
The numbers in order of size start with the smallest can be done as 0.309 < 0.32 < 0.35 < 0.40.
What are Decimal Numbers?The decimal numeral system is the most widely used system for representing both integer and non-integer values. It is the Hindu-Arabic numeral system's expansion to non-integer numbers. Decimal notation is the method of representing numbers in the decimal system.
The given number can be arranged from smallest to largest can be arranged as shown below. Therefore, we can write,
0.309 < 0.32 < 0.35 < 0.40
Hence, the numbers in order of size start with the smallest can be done as 0.309 < 0.32 < 0.35 < 0.40.
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