Answer:
Yes
Step-by-step explanation:
90/2 = 45
126/2.8 = 45
Therefore these rates do form a proportion
Step-by-step explanation:
so we will find the number of sit-ups the friend should do, if it is a direct proportion
let the number of friend's sit-ups be x
2 : 2.8
90 : x
cross multiply
we get x=126 sit-ups
so the rates do form a (direct) proportion
mZQRS = 179º and m_QRG= 105º.
Find m GRS.
Answer:
angle m GRS = angle m QRS - mQRG
mGRS = 179 - 105
mGRS = 74
hope it helps
Schalean paid $559.94, tax included, for a stereo system. If he paid $38.34 in sales tax, what percent sales tax did Schalean pay?
Answer:
Schalean paid about 13.6% sales tax
Sorry if i got it wrong
Answer:
9.36
Step-by-step explanation:
Solve the system using elimination. −7x + 15y = 95 7x − 15y = 115
Please help ill give brainliest for actual answer
A cell phone provider offers a plan that costs $20 per month plus $0.20 per text message sent or received. A comparable plan costs $30 per month but offers unlimited text messaging. Complete parts a. and b. below. a. How many text messages would have to be sent or received in order for the plans to cost the same each month? In order for the plans to cost the same. text messages would have to be sent or received
Answer:
a. 50 texts per month (you didn't include part b, sorry!)
Step-by-step explanation:
the difference in the plans is $10, so you have to find the number of texts that equal $10
$10/$0.20 = 50 text messages
Combine Like Terms:
9) 20y +4 + 2y
10. 5x – 2y + 12 z + 6y
11. 6x - 4 + 3y - 2y - x + 10
Answer:
9. 20y + 2y to get 22y +4
10.-2y - 6y = 4y to get 5x + 12z +4y
11. 5x +1y + 6
Step-by-step explanation:
If a - is next to a number then it becomes negative and if it has a letter like y add or subtract it’s to the other y
f(0)=3, f(4) = 9
how do i find this
Answer:
Step-by-step explanation:
f(3) = 4 f(0) =9
Y = mx + b
m = (9 -4) / (0 - 3) = -5/3
b = 9
Y = - 5/3 X + 9
Can yallll plzzzzz hellllp meeeeee
Answer:
straight line is drawn
Step-by-step explanation:
with the help of pencil and scale which have black in colour
11. An old machine requires three times as many hours to complete a job as
a new machine. When both machines work together, they require 9 hours
to complete a job. How many hours would it take the new machine to
finish the job operating alone?
Answer:
Step-by-step explanation:
[tex]9(r_n+r_o)=1\\ \\ r_n+r_o=\frac{1}{9}\\ \\ r_o=\frac{r_n}{3}\\ \\ r_n+\frac{r_n}{3}=\frac{1}{9}\\ \\ \frac{4r}{3}=\frac{1}{9}\\ \\ 4r=\frac{1}{3}\\ \\ r=\frac{1}{12}\\ \\ \text{So working alone it would take the new machine 12 hours to finish the job.}[/tex]
Anyone know how to do cot^6x=cot^4csc^2x-cot^4x
Answer:
False
Step-by-step explanation:
cot^4 (x)= cot^4 (csc^2(x)-cot^4(x))
the two sides are not equal so the answer is false
I need help finding m and b
Answer:
m=-4/5 and b=1
Step-by-step explanation:
The original formula is y=mx ±b and when asked to find those they are placed in the formula.
A hot dog vendor at Wrigley Field sells hot dogs for $1.50 each. He buys them for $1.20 each. All the hot dogs he fails to sell at Wrigley Field during the afternoon can be sold that evening at Comiskey Park for $1 each. The daily demand for hot dogs at Wrigley Field is normally distributed with a mean of 40 and a standard deviation of 10.a. If the vendor buys hot dogs once a day, how many should he buy?b. If he buys 52 hot dogs, what is the probability that he will meet all of the day’s demand for hot dogs at Wrigley?
Answer:
43 ; 0.88493
Step-by-step explanation:
Using the Zscore formula :
Zscore = (x - m) / s
m = mean ; s = standard deviation
Profit = $1.5 - $1.2 = $0.3
Loss = $1.2 - $1 = 0.2
Cummlative probability :
Profit / (profit + loss)
0.3 / (0.3 + 0.2) = 0.3 / 0.5 = 0.6
To obtain the x, at Z at 0.6 = 0.26
m = 40 ; s= 10
Hence,
0.26 = (x - 40) / 10
0.26 * 10 = x - 40
2.6 = x - 40
2.6 + 40 = x
x = 42.6 `; 43 approximately
Probability of meeting day's demand at Wrigley
x = 52
P(x < 52) :
Zscore = (52 - 40) / 10
P(Z < 1.2)
Z = 0.88493
Plssss help Im in class plsss
Answer:
You're in a hurry so no explaining
x = 4 and y = -5 ( here)
Hope this helped
Hope this helped All the best!!
Solve for the variable, 12p=204 *
please help me
Answer:
17
Step-by-step explanation:
12p = 204
=>p= 204/12
=> p = 17
Hello can some kind soul help me with this problem please
Simplify 5a + 2c + 3a + c
1. 8a + 3c
2. 8a + 2c
3. 10ac
Answer:
1. 8a+3c
Step-by-step explanation:
5a+2c+3a+c
8a+2c+c
Solution: 8a+3c
I hope this helps!
Robert bought a 6-pack of cans of iced tea for $2.70. About how much is the unit cost for each can of iced tea?
Answer:
Lo puedes poner en español?
Find the interior angle sum and the exterior angle sum of a 15 - gon .
Does that mean that it has to be 2 answers or only one
Answer:
2 Awnsers
Step-by-step explanation:
Because you need one awnser for interior angle sum and one awnser for exterior angle sum. Lmk if you need me to help figure out the 2 sums :)
You don't have a driver's license yet, so you have to walk to the store. You can walk 1.5 miles in 24 minutes. If it
took you 32 minutes to walk to the store, how far away is the grocery store?
Answer:
Units:
Blank 1:
Blank 2:
¿Cuál es el resultado de restar la segunda ecuación de la primera? -7x-y=0 7x+8y=-6
What is the equation of the line passing through (-2,-7) (4,23)
Answer:
The equation of line Passing through (2,3) and (4,7)
The slope of line is
4−2
7−3
=
2
4
=2
The equation of line is y−7=2(x−4)
y−7=2x−8
2x−y−1=0
Step-by-step explanation:
A is the poin 3,5 and b is the point 0,k if the distance of ab is 5 units find the possible value of k
Answer:
K is either 9 or 1
Step-by-step explanation:
Sqrt((0 - 3)² + (k - 5)²) = 5
Square both sides
(0 - 3)² + (k - 5)² = 5²
(0 - 3)² + (k - 5)² = 25
-3² + (k - 5)² = 25
9 + (k-5)(k-5) = 25
9 + k² - 5k - 5k + 25 - 25 = 0
k² - 10k +9 = 0
k² - 9k - k + 9 = 0
k(k - 9) - 1(k - 9) = 0
k - 1 = 0 ; k = 1
k - 9 = 9; k = 1
K = 9 or k = 1
K is either 9 or 1
This is a Desmos question please help me
Answer:
B
Step-by-step explanation:
If the 2 lines were parallel, then
5x - 10 = 70 ( alternate angles )
Add 10 to both sides
5x = 80 ( divide both sides by 5 )
x = 16
For the 2 lines to be parallel then x = 16
Answer:
B.16
Step-by-step explanation:
First I would Make an equation:
For example set (5x-10)=70
Add 10 to both sides:
5x-10+10=70+10
Simplify:
5x=80
Divide both sides by 5:
5x/5=80/5
simplify:
x=16
In conclusion the answer is B.16
what is 5/6 divided by negative 1/3
Answer:
-2 1/2
Step-by-step explanation:
Answer:
-2 1/2
Step-by-step explanation:
5/6 ÷ -1/3
use keep, change, flip...
5/6 × -3/1 = -15/6
divide..
-15 divided by 6 and you get -2 1/2
como calcular as potências
[tex] {6}^{ - 2} = [/tex]
How many quarts of soil are used to fill 2 flower pots?
Solve on paper and check your work on Zearn.
Answer:
25 (3/5)
Step-by-step explanation:
i did this on a test lol
Graph the function f(t) = e^0.4t.
Answer:
Step-by-step explanation:
Hope this helps! May I please have brainliest? :)
The function f(t) = e^0.4t is an exponential function and the variable of the function is t
How to graph the function?The equation of the function is given as:
f(t) = e^0.4t
The above function is an exponential function and the variable of the function is t
Next, we plot the graph of the function using a graphing tool
See attachment for the graph of the function f(t) = e^0.4t
Read more about exponential functions at:
https://brainly.com/question/21594694
#SPJ2
Could some help me with this and explain it. I really need help
Answer:
1 =b / 2=e
Step-by-step explanation:
If 250 dollars is made in five months add another 50 and it would be $300 in 6 months. Is this right? What's the equation for it?
Answer:
Yes
Step-by-step explanation:
It says each month they add 20% and i did it in a calculator and 250+20 percent is 300
A hiker sets out to climb a mountain with a 4,000 ft vertical ascent as shown in the diagram below. Ifthe angle of incline, a = 120 what is to total distance he has to travel to reach the summit, to the nearest whole foot?
The concession stand sells hot dogs and soda during the pee-wee football games.John bought 6 hot dogs and 4 sodas and paid $6.70. Jessica bought 4 hot dogs and 3 sodas and paid $4.65. At what prices are the hot dogs and sodas sold? Show your work.
Answer: Hotdog cost $0.75
Price of soda = $0.55
Step-by-step explanation:
Let the price of hot dogs be x.
Let the price of sodas be y.
6x + 4y = 6.70 ...... i
4x + 3y = 4.65 ....... ii
Multiply equation i by 4
Multiply equation ii by 6
24x + 16y = 26.80 ........ iii
24x + 18y = 27.90 ......... iv
Subtract iii from iv
2y = 1.10
y = 1.10/2
y = $0.55
Price of soda = $0.55
From equation i,
6x + 4y = 6.70
6x + 4(0.55) = 6.70
6x + 2.20 = 6.70
6x = 6.70 - 2.20
6x = 4.50
x = 4.50/6
x = $0.75
Hotdog cost $0.75