Answer:
they were .42¢ a piece I think this is right
The cost of one stamp will be $0.42.
What is Division method?Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications. For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.
Given that;
Marlene purchased 20 stamps at the post office for $8.40.
Now,
Since, The cost of 20 stamps = $8.40
Hence, The cost of 1 stamp = $8.40 / 20
= $0.42
Thus, The cost of 1 stamp = $0.42
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Zach paid $56.50 including sales tax for a book priced at $45. What was the sales tax rate?
Answer:
25.56% or $11.50
Step-by-step explanation:
I took it and put it in a sales tax calc.
A leaf fell into a river and traveled 140 meters in 4 minutes
How many meters did the leaf travel per minute?
Answer:
35 meters per minute
Step-by-step explanation:
140 meters/4 minutes = 35 meters/minute
Answer:
35 meters per minute
Step-by-step explanation:
140÷4=35
35 meters per minute
A music collection includes 19 ROCK CDs, 12 COUNTRY CDs, 6 CLASSICAL CDs, and 5 HIP HOP
CDs. What is the probability that a CD randomly selected from the collection IS NOT a classical
CD?(answer as simplified fraction)
Answer:
the answer is 6/7.
you're welcome.
indica a que numero decimal coresponde a esta fraccion
6/100
Answer: 0.06
because 100 has two zeros, the move the number of zeros to the left so the answer is 0.06
Solve for x 8.2/x =12/6.4
Answer: x=4.373
Step-by-step explanation: Have a brilliant day mate -Lily ^_^
Answer:
x=4.373 (put a repetend at the top of three last digit)
Step-by-step explanation:
Combine rational expressions and isolate variable x
How is the ratio of crushed tomatoes to tomato paste different from the ratio of tomato paste to crushed tomatoes?
Answer and explanation:
The ratio 1:2 is different from the ratio 2:1. The ratio 1:2(one to two) means a comparison of two sizes; the ratio of one part of that thing to the ratio of two parts of that thing. Likewise, the ratio 2:1 is the comparison of two parts of a thing to the ratio of one part of the thing. For the ratio 2:1, we could say for example that for every two crushed tomatoes there is one tomato paste.
can someone help me with this please, i am not sure what to do
Answer:
I attached the graph below
Step-by-step explanation:
I started at the y-intercept, because it is where the line crosses the y-axis. Then, I used rise/run for the slope (-5/3) and went down 5 units and right 3 units. I connected the points to make the graph.
Write an equation of the line that passes through pont (6,2) and is perpendicular to the line y = 3x + 3?
Brainliest will be given all points!
Answer:
y = -1/3x + 4Step-by-step explanation:
Perpendicular lines have negative-reciprocal slopes
The line will have a slope of:
- 1/3The equation is:
y = -1/3x + bUse the pair (6, 2) to find the value of b:
2 = -1/3(6) + bb - 2 = 2b = 2 + 2b = 4The line is:
y = -1/3x + 4Answer:
ummmmmmmmm
Step-by-step explanation:
How many centimeters are equal to 5 inches?
Remember, 2.54 cm = 1 in. Do not include units in
your answer.
Answer:
12.7 is your answer
5 x 2.54 = 12.7
The product of three and a number increased by 7 is 16
Answer:
Equation: 3x + 7 = 16
Unknown Number: 3
Step-by-step explanation:
You must first develop an equation representing this problem:
3x + 7 = 16
Then, you can solve for the unknown number.
3x + 7 = 16
3x = 9
x = 3
answer this question
Answer:
(0,8)
Step-by-step explanation:
find the length of the missing side.
Answer:
length of third side is 10 units.
Step-by-step explanation:
let x be the missing side
by pythagorus :
x^2 = 8^2 + 6^2 x^2 = 64 + 36x = root 100x = 10Simplify 12cm to 2.5mm
Given:
12cm to 2.5mm
To find:
The simplified for of given statement.
Solution:
We know that,
1 cm = 10 mm
12 cm =120mm
We have,
12cm to 2.5mm
It can be written as
[tex]\dfrac{12\ cm}{2.5\ mm}=\dfrac{120\ mm}{2.5 mm}[/tex]
[tex]\dfrac{12\ cm}{2.5\ mm}=\dfrac{120}{2.5}[/tex]
[tex]\dfrac{12\ cm}{2.5\ mm}=48[/tex]
Therefore, the value of 12 cm to 2.5 mm is 48 or 48:1.
GUYS PLEASE I NEED HELP
Given:
The graphs of two parabolas.
To find:
The equation of the quadratic function with given graphs.
Solution:
(a)
The factor form of a parabola is
[tex]y=a(x-b)(x-c)[/tex]
Where, a is a constant, b and c are x-intercepts.
From the graph (a) it is clear that the graph intersect the x-axis at -1 and 3. So, b=-1 and c=3.
[tex]y=a(x-(-1))(x-3)[/tex]
[tex]y=a(x+1)(x-3)[/tex] ...(i)
Put x=0 and y=3 because the y-intercept is (0,3).
[tex]3=a(0+1)(0-3)[/tex]
[tex]3=-3a[/tex]
[tex]\dfrac{3}{-3}=a[/tex]
[tex]-1=a[/tex]
Putting a=-1 in (i), we get
[tex]y=-1(x+1)(x-3)[/tex]
[tex]y=-(x+1)(x-3)[/tex]
Therefore, the equation of the parabola is [tex]y=-(x+1)(x-3)[/tex].
(b)
The vertex form of a parabola is
[tex]y=a(x-h)^2+k[/tex]
Where, a is a constant and (h,k) is vertex.
From the the graph (b), it is clear that the vertex of the of the parabola is at point (2,0) and y-axis is (0,8). So, h=2, k=0.
[tex]y=a(x-2)^2+0[/tex]
[tex]y=a(x-2)^2[/tex] ...(ii)
Put x=0 and y=8 because the y-intercept is (0,8).
[tex]8=a(0-2)^2[/tex]
[tex]8=4a[/tex]
[tex]\dfrac{8}{4}=a[/tex]
[tex]2=a[/tex]
Putting a=2 in (ii), we get
[tex]y=2(x-2)^2[/tex]
Therefore, the equation of the parabola is [tex]y=2(x-2)^2[/tex].
Given the following functions, f (x)= 3x + 2 and g(x)= 5x determine
part a: f(8)=
part b: g(a+2)=
Answer:
a) 26; b) 5a+10;
Step-by-step explanation:
f(8)=3(8)+2
=24+2
=26
g(a+2)=5(a+2)
=5a+10
Hey can anybody help with this question please
Pleasee can you give me the answer and explain how to do it for the future because I’ve been seeing this all day and I don’t know how to do it ;(
Answer:
C . y(18x-9w-12) ..............
Write an equation in slope intercept form for the graph of the line.
find the diffrence 3/4 - 1/3
Answer: 0.4
Step-by-step explanation: 3/4 - 1/3 = 5/12
converted to decimal: 5 ÷ 12 = 0.4
Answer:
3 /4 – 1/3 = 5 /12
Step-by-step explanation:
Calculation steps:
3 /4 –1 /3
=3 × 3 /4 × 3–1 × 4/3 × 4
= 9 /12 –4 /12
= 9 – 4 /12
= 5 /12
Smart ppl please help meee
Answer:
The reason why the area is 2a+3a+4a is because ax2=2a ax3=3a and ax4=4a know we know each segment so after that you add the segments to get the are equation which is 2a+3a+4a.
The reason why the area is also (2+3+4)a is because you just factored the orginial equation and if you use the distributive property they equal the same.
Step-by-step explanation:
If this answer helped you then please consider liking this and marking it as brainliest :)
A map has the scale of 1 inch = 50 miles. if two cities are 1 inch apart on the map how many miles separate the cities?
Answer: 175
Step-by-step explanation:
To determine the actual distance using the map scale of 1 inch = 50 miles, you would multiply the number of inches shown on the map by 50.
For this problem: 3 1/2 • 50 = 7/2 • 50 = 175 miles
The two cities are 175 miles apart.
у = 2х - 1
2х + Зу = -7
Answer: 1. у %3 2х
Step-by-step explanation: Find the distance between (0, 0) and (-3, 4) pair of points
Pls help Factor 4x^3+32
Answer:
Step-by-step explanation:
The greatest common factor they share is 4.
[tex]4(x^3+8)[/tex]
Lance put $40,000 into a bank account that pays 3% interest every 4 months. How much money will Lance have after 5 years?
Answer:
$600,000
Step-by-step explanation:
interest = 3/100 × 40,000 = $1200
4 months = 1/3 years
[tex]p = \frac{100 \times i}{rt} = \frac{100 \times 1200}{3 \times \frac{1}{3} } = 120000[/tex]
$120,000 in 1 year
5years, 120,000×5 = $600,000
Answer:
here u go
Step-by-step explanation:
$600,000
Step-by-step explanation:
interest = 3/100 × 40,000 = $1200
help me please guys
Answer:
900
Step-by-step explanation:
because if you do 400×5m then that's 900
and that's how much work you did by just pushing 5 meters with 400 N
Substitute the value n = 4 in the expressions
2n
n + 2
3(n+4)
Step-by-step explanation:
Given n = 4
2n = 2* 4= 8
n + 2 = 4 + 2 = 6
3(n + 4) = 3( 4 + 4) = 3 * 8 = 24
Hope it will help :)
Find FE (image Below)
Answer:
FE= 20
Step-by-step explanation:
…......................
SAS
Step-by-step explanation:
GD = FE
3x + 5 = 4x
5 = 4x - 3x
5 = x
so, FE = 4x
= 4 × 5
= 20
Write the equation of
the circle with diameter
endpoints of (17,-3) and
(-13, 3).
The equation of the described circle is:
(x - 2)² + y² = 234
How to write the circle equation?Remember that the equation for a circle whose center is (a, b) and has a radius R, is:
(x - a)² + (y - b)² = R²
Here the endpoints of the diameter are (17,-3) and (-13, 3), then the center is at:
( [17 - 13]/2, (-3 + 3)/2)
(2, 0)
And the radius is the distance between the center and any of these points:
R = √( (2 - 17)² + (0 + 3)²)
R = √234
Then the equation is:
(x - 2)² + (y - 0)² = √234²
(x - 2)² + y² = 234
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There are 120 Calories in a 34-cup serving of cereal. How many Calories are there in 6 cups of cereal?
Answer:
960 calories
Step-by-step explanation:
Answer:
there are 960 calories in 6 cups of cereal.
Step-by-step explanation:
Simplify the radical: √80
Answer:
4√5
Step-by-step explanation:
if this isnt the answer u needed lmk!!