Answer:
84
Step-by-step explanation:
Let the first digit = x
Let the second digit =y
x + y = 12
x + 4 = 3*y
===========
From the second equation, we learn that x = 3y - 4
Put that into the first equation.
3y - 4 + y = 12 Combine the left side
4y - 4 = 12 Add 4 to both sides
4y = 16 Divide by 4
4y/4 = 16/4
y = 4
=================
x + 4 = 12
x + 4 - 4 = 12-4
x = 8
So the number is 84
A proportion(Equivalent fraction) is a set of two equal ratios for example: 20/30=10/15 true or false!!! Please answer fast
Answer: true
Step-by-step explanation:
What postulate is this?
AAS
ASA
SAS
AAA
It takes 3/4 of an hour to paint 3/5 of a room how long does it take to paint one room
Answer:
1 1/4 hours
Step-by-step explanation:
.75/.6=x/1
cross multiply
.75=.6x
divide by .6
x=1.25 hours
(I didn't write this awnser it was written by
Katieg3593 I just thought I would share the awnser).
You are tasked with buying pizza for a party that has 100 guests. 40 guests are children, and 60 guests are adults. Half of the children want pizza, and two thirds of the adults want pizza. Children will eat one slice of pizza, and adults will eat two slices of pizza. A pizza pie can be cut into 8 slices and costs $9 dollars per pie.
Total slices required for children,
[tex]C = \dfrac{40}{2}\times 1\\\\C = 20\ slices[/tex] .
Total slices required for adults,
[tex]A=\dfrac{2}{3}\times 60\times 2\\\\A = 80\ slices[/tex]
So, total slices required are, 20 + 80 = 100 .
Number of pizza, n = 100/8 = 12.5
So, he has to order 13 pizza cause pizza cannot be purchased in fraction.
Total price, P = 13 × 9 = $117 .
Hence, this is the required solution.
can you help me
3 – 7f = -25, f = ?
Answer:
f = 4
Step-by-step explanation:
You are 6 feet tall and cast a 10 foot shadow. At the same time of day, your friend
casts a 9 foot shadow. How tall is your friend?
Answer:
5 feet tall
Step-by-step explanation:
PLZZZ HELPP ASAP
The table shows the outputs of ,y, for different inputs X:
input( X) is 1 2 3 4
output (Y) is 5 5 7 9
Part A: do the data in this table represent a function? justify your answer.
Part B compare the data in the table with the relation f(x) = 2x - 8. which relation has a greater value X = 4?
Part C using the relation in Part B, what is the value of X if f(x) = 34
Answer:
hm
Step-by-step explanation:
46=3(r+6)+5(r+4) plz hurry
Three salesmen work for the same company, selling the same product. And, although they are all paid on a weekly basis, each salesman earns his paycheck differently.
Salesman A works strictly on commission. He earns $65 per sale, with a maximum weekly commission of $1,300.
Salesman B earns a weekly base salary of $300, plus a commission of $40 per sale. There are no limits on the amount of commission he can earn.
Salesman C does not earn any commission. His weekly salary is $900.
On any given week, if Salesman B earns $1,020, how many sales did he have for the week?
sales
I will give brainlest
Answer:
18
Step-by-step explanation:
So base of 300/week.
We subtract 300 from 1020, leaving 720.
Divide 720 by 40 (because that is the amount per sale), we get 18.
Having to do with quantities greater than zero A)positive B)negative C)Debt
Answer:
A)positive
Step-by-step explanation:
All quantities greater than zero will be positive, although zero itself is not considered negative or positive. Also, debt means that something would be owed. This would mean the number is negative and therefore not correct.
Please help I’m taking a test and don’t have much time left
Answer:
That is correct
Step-by-step explanation:
Took the same. Quiz
Show work thanks please help me
Answer:
∠ JKL = 32°
Step-by-step explanation:
Since KN bisects ∠ LKM , then
∠ LKN = ∠ NKM = 35°
Thus
∠ JKL = ∠ JKM - ∠ LKN - ∠ NKM
= 102° - 35° - 35°
= 102° - 70°
= 32°
A photograph of sides 35cm by 22cm is mounted onto a
frame of external dimension 45cm by 30cm. Find the area
of the border surrounding the photograph.
===================================================
Work Shown:
A = area of smaller rectangle
A = length*width
A = 35*22
A = 770
B = area of larger rectangle
B = length*width
B = 45*30
B = 1350
C = area of the border only
C = B - A
C = 1350-770
C = 580 square cm
Step-by-step explanation:
Dimension of photograph is 35cm and 22cm.
And external dimension of photo frame is 45cm and 30cm
So, the area of the border surrounding the photograph=Area of photo frame−Area of photo.
So, The area of the border surrounding the photograph=45×30−35×22
=1350−770=580cm
2
you have 50$ and want to buy some shoes that cost $45. the tax rate for the shoes is 7%. do you have enough money to buy the shoes?
Please answer questions answer don't write a random word I will report and get banned from the site
Answer:
Yes, you have enought money
Step-by-step explanation:
45 times 107% (100 for the total cost and and 7 for the tax) is equal to 48.15. You have 50 dollars, therefore you can buy your shoes.
Which equation can you use to solve the following problem? Aaron has 186 photographs. Each page in his photo album holds 8 photographs. How many pages will his photographs completely fill in his photo album?
Answer:
24
Step-by-step explanation:
Correct answer will get brainiest!
Answer: for areas
1. (B+7)(a)
2.(c-12)(b)
3.(d+1)(2c)
4. (E-5)(5d)
5. (7e)(5e)
6. (6f+2)(3f)
7.(5g+3)(4g)
For perimeters
1. 2(b+7)+ 2(a)
2. 2(c-12) +2(b)
3. 2(d+1)+2(2c)
4. 2(e-5) +2(5d)
5. 2(5e+7e)
6. 2(6f+2) +2(3f)
7. 2(5g+3) +2(4g)
Step-by-step explanation: I just substituted in the values for the formulas. I hope this helps;)
Please help I will fail if I don’t get this right
Guys please help I'm being timed
Answer:
C
Step-by-step explanation:
how would i find the slope and y intersept of 3y=5x-18
Answer:
y=5/3x−6
5/3 is your slope
Answer:
see explanation
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Given
3y = 5x - 18 ( divide all terms by 3 )
y = [tex]\frac{5}{3}[/tex] x - 6 ← in slope- intercept form
with slope m = [tex]\frac{5}{3}[/tex] and y- intercept c = - 6
A health insurance policy requires that each
person covered pay the first $300 of a bill and
then 0.2 times the rest of the bill. Fran is
covered by this policy and had to pay $500.
What was her total bill?
3 − 3k + 7k = 5b find the equation for k
Answer:k=5b/4 - 3/4
Step-by-step explanation:
Answer:
[tex]k=\frac{5}{4}b - \frac{3}{4}[/tex]
Step-by-step explanation:
-3k + 7k = 5b - 3
4k = 5b - 3
[tex]k=\frac{5}{4}b - \frac{3}{4}[/tex]
A quality control manager is inspecting four digital scales to see if they accurately reflect a weight of 0 ounces. The table shows the weight displayed on four empty scales.
Empty Scale Weight Displays
Scale 1
–1 ounce
Scale 2
–2 ounces
Scale 3
0 ounces
Scale 4
–1 ounce
What is the average error in the scale displays?
–4 ounces
–1 ounces
0 ounces
1 ounce
Mark this and return
Answer:
-1
Step-by-step explanation:
Answer:
-1
Step-by-step explanation:
on edge ;)
PLEASE THESE 2 HELPPPPPPPPPPPP
Answer:
c and g
Step-by-step explanation:
What is the value of x?
Answer:
x=84
Step-by-step explanation:
the sum of the angles in a pentagon is always 540 so do
540-131-108-107-110=84
Answer:
84
Step-by-step explanation:
The picture shown is 5 sided polygon
By using the formula (n - 2) * 180
We would get (5 - 2) * 180
3 * 180 = 540
We first add
131 + 108 + 107 + 110 + x = 456 + x
With the angle of the entire polygon, we would subtract which would give us the value for x
540 - 456 = 84
Line t has an equation of y = -1/2 x + 7. Line u is parallel to line t and passes through
(4, -6). What is the equation of line u?
Answer:
y = -1/2x - 4
Step-by-step explanation:
Let equation of line u be y = mx + c
since line t and line u are parallel, slope/gradient of both lines are the same (aka m = -1/2)
sub (4, -6):
-6 = -1/2(4) + c
c = -4
therefore, equation of line u is y = -1/2x - 4
This is a question on coordinate geometry. If you wish to venture further into it/understand this topic better, you may want to follow my Instagram account (learntionary), where I post some of my own notes on certain topics and also some tips that may be useful to you :)
Please help!!!!!!!!!!
Answer:
The overall average is 70 dollars for all weeks together
Answer:
The average amount Mrs. Johnson spent per week is 70 dollars.
Step-by-step explanation:
47+96+78+61+68/5 = 350/5 = 70
Rewrite x-3y=6 in slope intercept from
Answer: 1/3x -2
Step-by-step explanation:
X-3y =6 subtract x from both sides first
-3y=6-x. Then divide both sides by -3
Y= 6-x /-3 simplify
Y= -2+x/3 rearrange
Y= 1/3x -2
which of the following inequalities matches the graph?
Answer:
I think it is 2x-3y<7, also, I used a free program called Desmos to figure it out, in case you also want to.
Step-by-step explanation:
Help please !! I need help because I have a certain amount of time so if you could help that would be great thank you!
Answer:
The one that you selected is correct. The second one.
Step-by-step explanation:
A 45000 car depreciates 12% each year how much does the car decrease by the end of the 1st year
Step-by-step explanation: It would take off a total of 5.4% which equals to 5,400 because 12% of 45000 is 5,400