Answers
Answer:
x = (-1)y = 3Step-by-step explanation:
y = -2x + 1
y = x + 4
2x + y = 1 _______(1)
-x + y = 4_______(2)
[tex] - x + y - (2x + y) = 4 - 1 \\ - x + y - 2x - y = 3 \\ - 3x = 3 \\ x = \frac{3}{ - 3} \\ x = - (1) \\ [/tex]
x = (-1),
[tex]2x + y = 1 \\ 2( - 1) + y = 1 \\ - 2 + y = 1 \\ y = 1 + 2 \\ y = 3 \\ [/tex]
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Uwu
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BC
Step-by-step explanation:
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The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. This process was repeated by 3 observers. The pooled standard deviations of these 3 data sets was 1.14. Determine the true mean force using all pooled data (with a 95% probability). The result should look like this: True mean
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89 ft/sec to m/sec. Round to the appropriate number of significant digits.
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Answer: 27.127 meters per second
Step-by-step explanation:
Please help answer and explain.
Answers
Answer:
-1/21
Step-by-step explanation:
Look for key words, difference means minus.
So 2/3-5/7. make the denominators the same, so 14/21-15/21
14-15 is -1 so -1/21 Hopefully this will help you!
You have 7 times as many nickels
as pennies. You have 16 nickels
and pennies altogether. How
much money do you have in all?
Answers
The total money you have is $40.14.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions by connecting them with the equal sign = .
Now it is given that,
There are 7 times as many nickels as pennies
Let there are n nickles and p pennies.
⇒ p = 7n
Now, there are 16 nickels and pennies altogether
⇒ p + n = 16
Put p = 7n we get,
⇒ 7n + n = 16
⇒ 8n = 16
⇒ n = 16/8
⇒ n = 2
Therefore, p = 7*2
⇒ p = 14
Thus there 14 pennies and 2 nickels.
Now, since 1 penny = 0.01 dollars
and 1 nickel = 20 dollars
⇒ 14 pennies = 14*0.01 dollars = 0.14 dollar
and, 2 nickel = 2*20 dollars = 40 dollars
So, Total money = $40 + $0.14
⇒ Total money = $40.14
Thus, the total money you have is $40.14.
To learn more about equations :
https://brainly.com/question/13482978
#SPJ2
Use the graph to determine the following
a. the function's domain
b. the function's range
c. the x-intercepts, if any
d. the y-intercept if any
e. the function value indicated below.
f(-2)
a. What is the function's domain?
(Type your answer in interval notation)
b. What is the function's range?
(Type your answer in interval notation)
c. Enter the x-intercept(s). Select the correct choice below and fill in any answer boxes within your choice.
O A The x-intercept(s) is(are)
Type an integer Use a comma to separate answers as needed.)
B. There is no x-intercept
Answers
Answer:
the answer you are looking for is e
A bag contains 6blue marbles 8 green marbles 9 red marbles and 17 yellow marbles what is the ratio of blue marbles to Total marbles
Answers
Answer:
6:40
Step-by-step explanation:
6 blue marbles
8 green marbles
9 red marbles
17 yellow marbles
6+8+9+17= 40.
40 is the total amount of marbles.
There are 6 blue marbles.
Comparing the amount of 6 to 40 would be 6:40
Jed has 4 times as many baseball cards as Ramon? Together, they have 60 baseball cards. How many baseball cards does Jed have?
Answers
Answer: 15
Step-by-step explanation:
4 multiplied by x (x= number of cards Ramon has) = 60 cards total
4x=60
4/60=15
x=15
PLS MARK BRANLIEST
Steve has been collecting baseball cards for a few months. Last week he added 5 more baseball cards to his collection yesterday his dog ate half of all this baseball cards and now he only has 12 cards left. How many cards did he start with
Answers
Answer:
19
Step-by-step explanation:
19 + 5 is 24 and if the dog ate half and there is 12 left 24/2 is 12
Answer:
19
Step-by-step explanation:
Well, all you got to do is firstly, multiply 12 by 2 (24). Then, subtract 5 from it (19).
Hope this helped!
Rationalise the denominator and simply
Answers
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
Let's solve :
[tex] \dfrac{24}{ \sqrt{6} } [/tex][tex] \dfrac{24}{ \sqrt{6} } \times \dfrac{ \sqrt{6} }{ \sqrt{6} } [/tex][tex] \dfrac{24 \sqrt{6} }{6} [/tex][tex]4 \sqrt{6} [/tex]Answer:
4√6
Step-by-step explanation:
=> 24/√6 ×√6/√6
=> 24√6/6
=> 4√6
hope it's helpful to you ☺️
What size cardboard does Thomas need to buy to make his box? 12 by 18 inch piece of cardboard 10 by 16 inch piece of cardboard 8 by 12 inch piece of cardboard 9 by 14 inch piece of cardboard
Answers
Answer:
12 by 18
Srry if I am wrong
in a store parking lot, the ratio of blue cars to silver cars is 2 : 3. there are 24 blue cars how many silver cars are in the lot ?
Answers
Answer: 36
Step-by-step explanation:
There is 50% more silver cars then blue cars
Take 24 x 1.5 (50% more) and you get 36
-Gage Millar, Algebra 2 tutoe
food brand names suggest 4 or more
Answers
Ritz
Oreos
Spam
Kirkland Signature
On the first day of a family road trip, Tamara's family travels 540 miles,
On the second day, they travel 10% fewer miles,
How many miles does Tamara's family travel on the second day?
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Answer:
the right answer is 486 and if I am right can brainlist
Heyyy help please…?.?.?.?.?.?
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Answer:
52 ounces 3.25 times 16 is 52
3.25 pounds = 52 ounces
(16 x 3.25 = 52)
I = $141.60; P = $590; t = 6 years
Find the rate
Answers
Using the simple interest formula:
I = P • r • t
Divide both sides by P•t to isolate r:
I / P • t = (P • r • t)/ P • t
I / P • t = r
Now that we have the formula for r, substitute the given values into the equation:
r = $141.60/($590 • 6)
r = 0.04 or 4%
Therefore, the interest rate is 4%
Find the Linear function model that best fits this data.
Answers
Answer:
y=-5x+3
Step-by-step explanation:
I always use desmos when i have graphing questions so i recommend using that!
Hope this helped! Have a great rest of your day!
Please mark me brainliest :)
Answer:
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The solution of a linear equation with rational coefficients is a rational number. A. Always B. Never C. Sometimes
Answers
9514 1404 393
Answer:
A. Always
Step-by-step explanation:
A linear equation with rational coefficients can be written in the form ...
ax +b = 0
The solution for the variable x is ...
x = -b/a
The problem statement tells us that 'a' and 'b' are rational numbers. Assuming there is a solution (a≠0), that solution is the ratio of rational numbers, hence must always be rational.
Half of a number, increased by 4, is 18. What is that number?
Answers
Answer:
24
Step-by-step explanation:
because 18-4=12 and if 12 is the half of the # the number has to be 24
12(2)=24
Help this is due tomorrow
Answers
Answer:
n = 1.40 (second option)
Answer:
The choice second;
[tex]n = 1.40[/tex]
Step-by-step explanation:
[tex]0.7n + 0.8n = 2.1 \\ 1.5n = 2.1 \\ \\ n = \frac{2.1}{1.5} \\ \\ n = \frac{21}{15} \\ \\ n = 1.4[/tex]
I hope I helped you^_^
A string 27.2 meters long is cut into shorter pieces, each measuring 3.4 meters
long. How many pieces were cut from the 27.2-meters string?
Answers
Answer:
8 peices
Step-by-step explanation:
Sorry it went without any work.
work: 27.2/3.4 = 8
Answer:
8 pieces
Step-by-step explanation:
27.2 divide 3.4 then you will get as answer which is 8 pieces from 27.2 meters string.
PLEASE HELP!!! WILL GIVE BRAINILEST
Determine the point and slope from the equation: y + 6 = -(x - 5)
a) point: (6, -5) slope: 1
b) point: (-6, 5) slope: -1
c) point: (5, -6) slope: -1
d) point: (5, -6) slope: 1
Answers
Answer:
the answer is C
Step-by-step explanation:
the equation of a line is y-y1=m(x-x1) where x1 and y1 are points on a line
so when you compare the two equations, you get C
Stuck on letter b, please help
Answers
Answer: f(3)=10
Step-by-step explanation:
In order to calculate f(3) you need to substitute 3 for x in function
f(x)=3x +1 :
f(3)=( 3x3) + 1
f(3)= 9+1
f(3)=10
Need help don’t want to fail help help help
Answers
Answer:
photosynthesis is a processes by which plants get their proteins
Step-by-step explanation:
ok
Answer:
C. is not true
Step-by-step explanation:
Hole at x = 1, numerator has factor x-1, while vertical asymptote x = -3 means there is factor of x-3 in denominator.
horizontal asymptote y=0: degree of numerator less than denominator.
No real zeros.
Select more than 1 please
Answers
1.) DC=D’C’
2.) 3.) ED=E’D’
check all that apply. if csc0 =13/12 then:
a:tan0= 12/5
b:sec0= 12/13
c: sin0=12/13
d: cos0=12/13
Answers
Answer:
a:tan0= 12/5
c: sin0=12/13
Step-by-step explanation:
cosec t(heta) = 13/12
1/sin t = 13/12
sin t = 12/13
cos t = √ (1 - (12/13)² ) = √ ( 1 - 144/169 ) = √25/169
cos t = 5/13
tan t = sin t/ cos t = (12/13) / (5/13) = 12/5
sec t = 1 / cos t = 13/5
Answer: A ) and C ) are correct:
tan theta = 12/5 and sin theta = 12/13
Which equation represents a line with a slope of -8 and
a y-intercept of 4?
A y = -8x+4
B y = -4x+8
C y = - 8x-4
D y = 8x+4
Answers
Answer: A. y = -8x + 4 because the slope goes in front with the x (-8x) and the y intercept is after the slope (4)
If the diameter is knownhow is the radius is determined
A.d/2 or 1/2 pi x d
Answers
Two mechanics worked on a car. The first mechanic worked for 5 hours, and the second mechanic worked for 15 hours. Together they charged $1650. What was the rate charged per hour by each mechanic if the sum of the two rates was $140 per hour?
Answers
y = rate of mechanic who worked 15 hours
Then
x + y = 235
5x + 15y = 2375
Just solve these 2 equations above for x and y.
x + y = 235 ⇒ x = 235 - y
Substitute into second equation to find y.
5(235 - y) + 15y = 2375
1175 - 5y + 15y = 2375
10y = 1200
y = 1200/10 = 120
x = 235 - y = 235 - 120 = 115
The mechanic who worked 5 hours charged $115 per hour, the one who worked 15 hours charged $120 per hour.