Answer:
$1.42
Step-by-step explanation:
Since, The first customer paid $12 for 14 postcards and 5 large envelopes.
That is, 14 x + 5 y = 12 ------ (1)
And, The second customer paid $24.80 for 10 postcards and 15 large envelopes.
That is, 10 x + 15 y = 24.80 -------(2)
3 × equation (1),
We get, 42 x + 15 y = 36 ---------(3)
Equation (3) - Equation (2)
32 x = 11.20
⇒ x = 11.20/32
⇒ x = 0.35
By putting the value of x in equation (1),
We get, 14 × 0.35 + 5 y = 12
⇒ 4.9 + 5 y = 12
⇒ 5 y = 7.1
⇒ y = 1.42
Thus, the cost of one postcard = $ 0.35
And, the cost of each large envelope = $ 1.42
what is the mean of the data? 24,31,12,38,12,15
Answer:
Hello Love! Answer: 22
Step-by-step explanation:
The mean is just an average of all the numbers added up then divided by how many numbers there are so I add up those numbers and I get 132 now I will just divide that by 6 sense there are 6 numbers and I get 22!
what is the area of the white box
Answer:
12 m²Step-by-step explanation:
The white box is a rectangle with width of:
a = 2 m
and length of:
b = 7 m - 1 m = 6 m
So its area is A = 2 m × 6 m = 12 m²
{The shaded blue area is: (5 m + 1 m)(8 m) - 12 m² = 48 m² - 12 m² = 36 m²}
The original balance in Aisha’s account was $760. Last week, she wrote five checks to her employees, each for $100. what is Aisha’s net balance?
Aisha's net balance after writing the check of $100 to five employees will be $260 .
Given, Aisha’s account balance $760.
Now, to get the net balance of account after deductions .
Remaining amount = Original Balance - Payment amount.
Substitute the values,
Remaining amount = $760 - 5 × $100
Remaining amount = $760 - $500
Remaining amount = $260
Know more about subtraction,
https://brainly.com/question/13619104
#SPJ4
WILL GIVE BRAINLIEST!!
Answer:
hi
Step-by-step explanation:
i think so,it is 19
have a nice day
Answer:
19 is the correct answer
hope it is helpful to you
The right rectangular prisms are similar.
Which statements are correct? Check all that apply.
3.2 AT
The angles in the smaller prism measure 90
degrees.
The perimeter of the rectangular bases changes by
a factor of 2.
The surface area changes by a factor of 8.
The larger prism has twice the volume of the
smaller prism.
The area of the rectangular bases changes by a
factor of 4.
1.6
-
-
-
-
-
-
10.4
V
0.8
2.2.
Answer:
A)The angles in the smaller prism measure 90 degrees.
B)The perimeter of the rectangular bases changes by a factor of 2.
E)The area of the rectangular bases changes by a factor of 4.
Step-by-step explanation:
The right rectangular prisms are similar.
Which statements are correct? Check all that apply.
A)The angles in the smaller prism measure 90 degrees.
B)The perimeter of the rectangular bases changes by a factor of 2.
C)The surface area changes by a factor of 8.
D)The larger prism has twice the volume of the smaller prism.
E)The area of the rectangular bases changes by a factor of 4.
Solution:
Two polygons are said to be similar if they have the same shape, the ratio of their sides are in the same proportion and they have the same size of angles.
A) Since the bigger prism has angles with measure of 90°, hence the angles in the smaller prism will also measure 90.
Option A is correct.
B) Perimeter of bigger prism base = 2(2.2 + 0.8) = 6
Perimeter of smaller prism base = 2(1.1 + 0.4) = 3
The perimeter of the rectangular bases changes by a factor of 2 (6 / 3).
Option B is correct.
C) Surface area of bigger prism = 2(3.2*0.8 + 2.2*0.8 + 3.2*2.2) = 22.72
Surface area of smaller prism = 2(1.6*0.4 + 1.1*0.4 + 1.6*1.1) = 5.68
The surface area does not change by a factor of 8 (22.72 / 5.68 ≠ 8)
Option C is wrong
D) Volume of bigger prism = 2.2 * 3.2 * 0.8 = 5.632
Volume of smaller prism = 1.1 * 1.6 * 0.4 = 0.704
The larger prism volume is not twice of the smaller prism
Option D is wrong
E) Area of bigger prism base = 2.2*0.8 = 1.76
Area of smaller prism base = 2.2*0.8 = 0.44
The area of the rectangular bases changes by a factor of 4 (1.76 / 0.44 = 4)
choose the bast description for the real number 34/3
Step-by-step Answer:
C and D are both correct as fractions. Numbers are NOT irrational because they are a fraction. And concluding decimals are both rational numbers. By using a known formula you can convert reaptedly decimals to a fraction.
please heeeeeeeeeeeeeeeeeeelp
Answer:
its answer is option c .
hope it helps :)
Step-by-step explanation:
What is logo e' rewritten using the power property?
O elog6f
O flog6e
O log6(e•f)
O log6(e+ f)
20 points!!!
What is the energy of a photon emitted with a wavelength of 518 nm?
Answer:
3.84 x 10^-19
Step-by-step explanation:
a93x
Answer:
3.84 x 10^-19
Step-by-step explanation:
HELP ME PLEASE! THE ATTACHMENT HAS THE INFO.
THANK YOU!
Answer:
The answer is B
Step-by-step explanation: yo mum u dont need one
Answer:
Your answer is b
Step-by-step explanation:
Step-by-step explanation: None
What is the measure of the base of the triangle? The base of the triangle b has a measure of inches.
Answer:
27
Step-by-step explanation:
Answer: 4
Step-by-step explanation:
Find the equation of the line with Slope = -4 and passing through (-1,8). Write your equation in the form
y = mx + b
Does anyone mine helping me?
Answer:
y= -4x+4
Step-by-step explanation:
y=mx+b
where x=-1, y=8, and m=-4
8=(-4)(-1)+b
8=4+b
4=b
Thus, y= -4x+4
what is the sum of 3,9
Answer:
3 + 9 = 12 !
Step-by-step explanation:
What is the slope of the line through (–5,2) and (6,7) in the standard (x,y) coordinate plane?
9
9
5
5
-5
-5
5
11
5 over 11
−
5
11
Step-by-step explanation:
[tex]slope = \frac{\triangle \: y}{\triangle \: x} \\ = \frac{(7 - 2)}{(6 - ( - 5))} \\ = \frac{5}{11} \\ slope = (5 ,11)[/tex]
Identify the measures of exterior angle below. Let x = 15
What does A equal?
What does A equal?
Please answer both of the question!!
Answer:
5. 32,000
6. 0.006
Answer:
1=d
2=D
Step-by-step explanation:
Someone help NO LINKS/WEBSITES PLZ and I will mark brainiest if it’s right :)
Answer:
I think it would be B) 47. Sorry if wrong
Step-by-step explanation:
Explain how solving -7y > 161 is different from solving 7y > -161.
help will give brinlest
Answer:
Dividing with negatives will result in a flip in the signs.
Step-by-step explanation:
In the first equation, -7y>161, if you solve it, you will need to divide both sides by -7.
[tex]-7y > 161\\ \\\\[/tex]
Since you are involving a negative, you will have to switch the signs. That means that if you have solved this, the answer would be:
y < -23Notice the change in signs.
---------------------------
Now in the second equation, the constant (161) is negative. So if you solve this,
[tex]7y > -161[/tex]
You will only need to divide both sides by 7, which is a positive number. That leaves the sign to stay the same, so the answer would be:
y > -23-----------------------If you look at the signs in both answers, they are flipped.Have a nice day!PLEASEEEEEE HEELLLPPP MEEEE!!!!
Answer:
the top one is posable oucomes and the the bottom is the other on
Step-by-step explanation:
Answer:
1 fav
2. possible
Step-by-step explanation:
Consider this equation.
cos(θ) = 4sqrt41/41
If θ is an angle in quadrant IV, what is the value of sin(θ) ?
Answer:
A. -5√41/41Step-by-step explanation:
Let the horizontal leg = 4√41 and the hypotenuse = 41 as
cosine = adjacent leg / hypotenuse.Then the vertical leg is:
√(41² - 16*41) = √25*41 = 5√41Since the vertical leg is below the x-axis, its value is -5√41
Then we have:
sin (θ) = -5√41/41Correct choice is A
Answer:
Step-by-step explanation: i just take the test
What is 721295.198715 rounded to the nearest tenth
Answer:
The answer is 721295.2
Answer:
721,295.2
Step-by-step explanation:
I used the "Rounding Numbers Calculator" on Calculator Soup
If the gradient of the line segment joining (-3,7 ) and (4,p) is 3/5 ,find p
Answer:
a
Step-by-step explanation:
please dont guess. need the answer asap
WILD ANSWER - 35% possibility it could be wrong. Please check with other answer first.
Answer: X=15.4
Step-by-step explanation:
Cos 39 = x/26
12 x = 0.77714596
x = 15.44111479
X=15.4
The length of a rectangle plus its width is 18 cm. The area is 80 sq cm. what are the length and width of the rectangle?
Answer:
80 units squared
Step-by-step explanation:
If two sides of a rectangle add up to 18cm and the area is 80 units squared then the length is 10cm, and the width is 8cm. If you add 10 and 8 together you get 18, and if you multiply those you get 80 units squared.
helppppppppp id.k this
Answer:
-432 ,-2 ,2 ,72
Step-by-step explanation:
The Answer Is 2,592
This is because this is a geometric sequence, every number is multiplied by -6 to find the next number in the sequence.
Two sides of a triangle have lengths of 9
and 18. Which inequality represents the
possible length for the third side, x?
A. 9 < x < 18
B. 18 < X < 9
C. 9
D. 18 < X < 27
D) 18 < X < 27
Because the length of the third side has to lesser that the sum of the other two sides
Answer:
I think that a option is correct
"A.9 <x<18"
Step-by-step explanation:
HOPE IT HELPS YOU:)
Are the following figures similar?
Answer:
no
Step-by-step explanation:
45/36=1.25
1.25x18=22.5
not 25
no common factor
so not similar
Which job here requires the least amount of training and education
A. Elementary Teacher
B. College professor
C. Cashier
D. Accountant
Answer:
Cashier
Step-by-step explanation:
An elementary school teacher has to go to college, a college professor has to have a college degree, and although accountants are always required to go to college most places hire accountants that have gone to school.
Answer:
C. Cashier
Step-by-step explanation:
Retail cashiers require no formal training.
To be an elementary teacher, you must have at least a Bachelor's degree.
To be a college professor, you must have at least a Master's degree.
To be an accountant, you must have at least a Bachelor's degree.
The Morris family just bought 8 crates of eggs, and each crate had 12 eggs. The family already had 9 eggs in their refrigerator. How many eggs do they have now?
They now have 30 eggs
I need a bf
Answer:
105 eggs
Step-by-step explanation:
Total eggs they bought = ( 8×12) = 96 eggs
They already had 9 eggs so adding 96 and 9 gives us 105 eggs in total
PLEASE HELP ME!!!!!!!!!!!
Answer:
Yes.
Step-by-step explanation:
In order to form a triangle the sum of two sides should exceed the third side.
so here the given measurements fulfill this statement so
with the given lengths ; 15, 12 , 9 can form a triangle.
