Answer:
x=1 ,y=-5
Step-by-step explanation:
3x + 10y = 47
5x - 7y = 40
____________
21x + 70y = 329. equ 1
50x - 70y = 400. equ 2
subtract equ 1 from 2
=71x = 71
divide both sides by the 71
71/71 = 71/71
x = 1
_________
to find y
substitute x into either equ 1 or equ 2
am using equ 2
5x - 7y = 40
5(1) - 7y = 40
5 - 7y = 40
7y = 5 - 40
7y = -35
divide both sides by the coffecient of y
7y/7 = -35/7
y = - 5
What does m equal ? Please help I need this turned in by tomorrow.
Answer:
gnilr
Step-by-step explanation:
Answer:
M equals 1.......... .
A factory can produce 60 TVs in 7 days. How long does it take to finish 400 TVs?
Answer:
57.12, but being precise and accurate, you might wanna put 58.
Step-by-step explanation:
So, there's this guy, his name is calculator.
The distance an object travels is determined by how fast it goes and for how long it moves. If an object’s speed remains constant, the formula is d = r • t, where d is the distance, r is the speed, and t is the time.
If you drive at 50 miles per hour for 5 hours, how far will you have traveled?
a. 200 miles
b. 10 miles
c. 250 miles
d. 300 miles
Complete the following statement.
When converting a decimal to a fraction, the digits to the right of the decimal point become th
of the
fraction.
numerator
denominator
NEXT QUESTION
READ NEXT SECTION
ASK FOR HELP
TURN IT IN
Answer:
it becomes the numerator
Step-by-step explanation: i read it in my lesson
Need this Slope Answer! Help please.
Answer:
0.5
Step-by-step explanation:
What is the measure of the indicated angle?
120°
?
Find the surface area of the figure.
5 m
5 m
4 m
6 m
10 m
Answer:
258m
Step-by-step explanation:
This is a guess, if you could, please post your answer again, but this time click the paperclip icon, and add a screenshot of the figure!
What's the answer? please help
Answer:
it's 3.
Step-by-step explanation:
10-4/5-3
6/2
3..
The decline of salmon fisheries along the Columbia River in Oregon has caused great concern among commercial and recreational fishermen. The paper 'Feeding of Predaceous Fishes on Out-Migrating Juvenile Salmonids in John Day Reservoir, Columbia River' (Trans. Amer. Fisheries Soc. (1991: 405-420)) gave the accompanying data on
y= maximum size of salmonids consumed by a northern squaw fish (the most abundant salmonid predator) and
x= squawfish length, both in mm.
Use the following statistics to give the equation of the least squares regression line.
x=524.880,
y=413.975,sx=12.251,sy=12.300,
r=0.9562
options:
a) ^y=0.960xâ89.910
b) ^y=0.960x+89.910
c) ^y=â89.910x+0.960
d) ^y=0.952x+89.910
e) ^y=0.952xâ89.910
f) None of the above
Answer:
the correct answer is not there. here it is:
^y = 0.960x - 89.910
Step-by-step explanation:
we have regression line equation as:
^y = a+bx
we have the following details available
x = 524.88
y = 413.975
Sx = 12.251
Sy = 12.300
r = 0.9562
we have to find values of a and b
b = rSy/Sx
= 0.9562(12.3)/12.251
= 11.76126/12.251
= 0.960
a = y - intercept
= 413.975-0.96(524.88)
= 413.975-503.8848
= - 89.9098
a = -89.910
putting these values into the equation, we have:
^y = -89.910 + 0.9600x
which is also
^y = 0.960x - 89.910
A car is traveling at steady speed. It travels 2 1/3 miles in 3 1/2 minutes. How far will it travel in 41 minutes? In 1 hour?
I need helping finding an equation for this table and the function.
Y
1
4
16
64
256
1024
4096
X
1
2
3
4
5
6
Find the equation and function and give a reason
For f(x)=5x+1. Find f(-4)
Answer:
-19
Step-by-step explanation:
f(x)=5x+1
F(-4) - substitute -4 as the x
F(-4)=5(-4)+1
F(-4) = -20 + 1
f(-4) = -19
If you score higher than 90% on the test, you'll get an A. If you get an A, you can celebrate.
You scored a 92% on the test. What can you conclude using the Law of Syllogism?
Answer:
You'll get an A and you can celebrate.
Step-by-step explanation:
The hypothesis for the first conditional is met, so we can assume the conclusion is true: you'll get an A.
That conclusion satisfies the hypothesis of the second conditional, so we can assume its conclusion is true: you can celebrate.
Taken together, we can assume ...
You'll get an A and you can celebrate.
Please help with my Probability Sheet. Integrated Math 2. Spin or Roll.
Answer:
I can't see the pdf
Step-by-step explanation:
please put the image up
30 points to HELP PLEASE and THANK U
A wheel of a child's bicycle has a circumference that is 50% of the circumference of a child's mountain bicycle wheel. The child's bicycle wheel has a circumference of 37.7 inches. a. What is the radius (to the nearest inch) of the child's bicycle wheel? of the child's mountain bicycle wheel? b. The child's mountain bicycle wheel takes 2 seconds to make 3 revolutions . How fast(to the nearest inch per second) is the bicycle moving?
Answer:
36960in per minute
Step-by-step explanation:
Answer:
a) 6 inchesb) 113 inches per secondStep-by-step explanation:
Let the child bicycle wheel radius be x
Then its circumference is
C = 2πxa) Solving for x
37.7 = 2*3.14xx = 37.7/6.28x = 6.0 inb) Mountain bicycle has twice the circumference of a child bicycle
In 2 seconds it makes 3 revolutions
It makes the distance of
d = 3*2*37.7 = 226.2 inches in t = 2 secondsSpeed = d/t
Speed is:
226.2/2 = 113 inches/second
Use the figure below to solve for X.
Answer:
the value of x is 45 degree
Answer:
45
Step-by-step explanation:
Step 1:
2x + 55° + x - 10° = 180° Sum of a Δ
Step 2:
3x + 45° = 180° Combine Like Terms
Step 3:
3x = 135° Subtract 45° on both sides
Step 4:
x = 135° ÷ 3 Divide
Answer:
x = 45
Hope This Helps :)
x^2+ bx +c= (x + 3) (x + m)
Answer:
x= c-3m/m+3-b
Step-by-step explanation:
use Math way
Step-by-step explanation:
(b-m-3)x-3m+c =0
.
.
.
.
.
.
.
.
hope u got it!!
11.
April is going to the bakery to purchase donuts and cinnamon rolls for the office personnel. She must purchase at least 30 items. She has collected only $30, so total cost must be no more than $30. If d represents donuts that cost $0.75 each and r represents cinnamon rolls that cost $1.25 each, which system of inequalities can be used to represent the region for the number of donuts and cinnamon rolls April could purchase?
A.d + r ≥ 30
0.75d + 1.25r ≤ 30
B. d + r ≥ 30
1.25d + 0.75r ≤ 30
C. d + r ≤ 30
0.75d + 1.25r ≥ 30
D. d + r ≤ 30
1.25d + 0.75r ≥ 30
Please answer quickly :)
The system of inequalities that can be used to represent the region for the number of donuts and cinnamon rolls April could purchase is $0.75d + $1.25r ≤ $30
April cannot spend more than $30. Thus, the inequality sign that would be used is ≤ (the less than or equal to sign).
April wants to purchases two items, cinnamon rolls and donuts. The donuts cost $0.75 per dollar and cinnamon rolls cost $1.25 per dollar.
The total amount April can spend on donuts = $0.75 x d = $0.75d
The total amount April can spend on cinnamon rolls = $1.25 x r = $1.25r
The sum of $0.75d and $1.25r has to be less than $30
This can be represented with this inequality: $0.75d + $1.25r ≤ $30
A similar question was solved here: https://brainly.com/question/18649886?referrer=searchResults
can someone help please
Answer:
es
375
Step-by-step explanation:
You are given space that limit as h rightwards arrow 0 of fraction numerator g (3 + h) - g (3)/h = 7 and g (3) = 9. Find m and b so that the tangent space line of g (x) at x = 3, y = m x +b.
Answer:
m = 7 and b = -12 therefore y = 7x - 12
Step-by-step explanation:
From the question we are given the first derivative of the function g to be 7, and it is known that the first derivative of a function is the slope, therefore the slope, m = 7.
Since we are looking for 'b' at x = 3 and we know that our slope is 7, we have:
g(3) = 7*3 + b. We are given g(3) = 9 so we have:
9 = 21 + b and b = -12.
Therefore, m = 7 and b = -12 and the equation of the line is y = 7x - 12.
The tailor determines that the cost of material varies directly with the amount of material. The cost is $42 for 14 yards of material. What is the cost for 70 yards of material?
Answer:
[tex]the \: cost \: for \: 70 \: yards \: of \: material \: is : \\ \: \$210.[/tex]
Step-by-step explanation:
[tex]let \: the \: cost \: of \: material \: be \to \: c_{m} \\ let \: the \: amount \: of \: material \: be \to \: a_{m} \\ then \: the \: expression \: is: \\ c_{m} \: \alpha \:a_{m} \\ c_{m} \: = k a_{m} \\ if \: c_{m} = 42 \: and \:a_{m} = 14 \\ then \: \to \\ k = \frac{c_{m} }{a_{m}} = \frac{42}{14} \\ k = 3 \to \: this \: is \: the \: variation \: constant. \\ when \: a_{m} = 70 : \: then \to \\ c_{m} = k a_{m} = 3 \times 70 \\ \boxed{ c_{m} = \: 210}[/tex]
♨Rage♨
Round 43.586 to the nearest tenth. Pleaseee help ASAP
Answer:
43.6
Step-by-step explanation:
I hope this helps you :)
Answer:
43.59
Step-by-step explanation:
43.59 because it is
A standard showerhead dispenses 50 gallons of water in 20 minutes. At this rate, how many gallons of water will a standard showerhead dispense in 5 minutes?
Answer:
12.5
Step-by-step explanation:
Answer:12.25
Step-by-step explanation:
write the recuring deciml 0.15 as a fractions simplest form
Toss a thumbtack on a hard surface 50 times. How many times did it land with the point up? What is the approximate probability of landing up?
Answer:
25% because there is 4 side causing it to be 1/4 chance
Step-by-step explanation:
Choose the fraction that is greater than 5/9.
Answer:
6/9
Step-by-step explanation:
Give an example of two events that are not mutually exclusive.
Answer: in the case of rolling a die the event of getting an 'odd-face' and the event of getting 'less than 4' are not mutually exclusive and they are also known as compatible event. The event of getting an 'odd-face' and the event of getting 'less than 4' occur when we get either 1 or 3.
Step-by-step explanation:
also turning ur body (left and right)
For the following right triangle, find the side length x
PLEASE HELP!! Find the market equilibrium point for the following demand and supply equations
9514 1404 393
Answer:
(p, q) = (16, 20)
Step-by-step explanation:
You can add the two equations together to make one from which q can be eliminated:
(4p) +(3p -q) = (-q +84) +(28)
7p -q = -q +112 . . . . simplify
7p = 112 . . . . . . . . . . add q
p = 112/7 = 16
Using this value in the second equation, we get ...
3·16 -q = 28
48 -28 = q = 20 . . . . . add q-28
The equilibrium point is (p, q) = (16, 20).
It takes 3 ¾ spoons of chocolate syrup to make 2 ½ gallons of chocolate milk. How many spoons of syrup would it take to make 5 gallons of chocolate milk?
Answer:
I think it is 7.5 (7 1/2)
Step-by-step explanation:
3.75 divided by 2.5= 1.5
1.5 * 5= 7.5
