Answer:
(2,3)
Step-by-step explanation:
- Substitute the equation for y instead of the y variable.
-3x - 2(5x - 7) = -12
-3x - 10x + 14 = -12
-13x = -26
x = 2
- Now substitute the value of x into the other equation.
y = 5x - 7
y = 5(2) - 7
y = 10 - 7
y = 3
Answer:
x = 2 and y = 3
Step-by-step explanation:
y = 5x - 7
-3x - 2y = -12
Substitute y into the second equation:
-3x - 2(5x-7) = -12
Simplify:
-13x = -26
x = 2
Substitute x into the first equation:
y = 5(2) - 7
y = 10 - 7
y = 3
I = $141.60; P = $590; t = 6 years
Find the rate
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?
Find the Linear function model that best fits this data.
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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Help this is due tomorrow
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^_^
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
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!
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
Answer:
12 by 18
Srry if I am wrong
89 ft/sec to m/sec. Round to the appropriate number of significant digits.
Answer: 27.127 meters per second
Step-by-step explanation:
If the area of this rectangle is 30cm square what would the missing side be?
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?
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 solve or help:)
Step-by-step explanation:
please mark me as brainlest
Answer:
x=25
Step-by-step explanation:
5x-10=4x+15
5x-4x=15+10
x=25
Select more than 1 please
Need help don’t want to fail help help help
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.
Stuck on letter b, please help
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
Log 16 - Log64/Log 128
Answer:
1.785074354
Step-by-step explanation:
I don't know the ans want how many significant so I put all
Write a verbal expression to represent the given equation,
X - 25 = 3
Rationalise the denominator and simply
[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 ☺️
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
Answer:
the answer you are looking for is e
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 ?
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
Where do I graph it pls help
You would start by putting a point at (0,-1) and then one at (5,1)
Lin AB is parallel to CD
what is the measure of 4
Answer:
BC
Step-by-step explanation:
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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
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
need help with these 3
Answer:
1) Radius = 3yd Diameter = 6yd
2) Radius = 19ft Diameter = 38ft
3) Radius = 18in Diameter = 36in
Step-by-step explanation:
Diameter = r*2=d
Radius = d/2=r
1. Radius: 3yd
Diameter: 6yd
2. Radius: 19ft
Diameter: 38ft
3. Radius: 18
Diameter: 36
For next time the radius is half the diameter. If you want diameter it’s Rx2 and if you want radius you do D divided by 2
Hello I need help? please!!
Answer:
I'm pretty sure your right keep up
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
If three times a number is at least four more than eight times the number, which of the following is true?
- The number is at least negative four-fifths.
- The number is at most four-fifths.
- The number is at least four-fifths.
- The number is at most negative four-fifths.
Answer:
The first one is correct.
Step-by-step explanation:
Your equation is 3n ≥ 4+8n
Simplify:
3n ≥ 4+8n
-8n -8n
-5n ≥ 4
-5 -5 Dividing by negative 5
n ≤ - 4/5 sign was flipped because you divided by a negative number.
Hope that helps!
Answer:
The answer is A
Step-by-step explanation:
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
Answer: A. y = -8x + 4 because the slope goes in front with the x (-8x) and the y intercept is after the slope (4)
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?
Answer:
the right answer is 486 and if I am right can brainlist
food brand names suggest 4 or more
Ritz
Oreos
Spam
Kirkland Signature
If the diameter is knownhow is the radius is determined
A.d/2 or 1/2 pi x d
The solution of a linear equation with rational coefficients is a rational number. A. Always B. Never C. Sometimes
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.