Solve the system by substitution.
y = 5x
y = 9x + 4
Answer:
(-1, -5)
Step-by-step explanation:
[tex]\left \{ {{y=5x} \atop {y=9x+4}} \right.[/tex]
1. We must calculate x, for that we must substitute y, so we have:
5x=9x+4
2. Now we solve the equation.
5x-9x=4
-4x=4
x=-1
3. Now we must calculate y
y=5x
y=5(-1)
y=-5
And the answer is (-1, -5)
Ahab wants to buy a mule that is 5 % off. The original price is $ 178. What is amount of discount
Answer:
the discount is $8.90
Step-by-step explanation:
178 • .05 = $8.90 off of the original price
On Monday, Franco borrowed $15 from his friend. Tuesday, Franco borrowed $12 more from his friend. Franco plans to pay his friend back $18 on Wednesday.What will Franco’s balance be on Wednesday?(Anwser with number only please)
9
Step-by-step explanation:
I believe its 9 because he borrowed $15 on Monday and then he did $12 more on Tuesday and thats already $27 that he owes his friend but then Franco pays his friend back $18 and he will just owe him $9 left
I Will give brainllest! Look at picture answers. please show all your work and explain how you get it.
Answer:
-1/10
I'm sure this answer is right.
Use the formula M= rise/run.
Then you will get this answer.
Juan bought 4.5 lbs of coffee for $7.98 per lb. Sales tax is 6%. What was the total amount Juan paid for the coffee?
Answer:
the amount he paid is 36.06
Step-by-step explanation:
hope this helps
Answer:
$33.7554
Step-by-step explanation:
4.5 x 7.98
35.91- the amount without the sales reduction
6% of 35.91
6/100 x 35.91
2.1546- the amount that was deducted
to find out how much he paid we will subtract the deducted amount from the original price which is
35.91-2.1546
$33.7554 is the amount he paid
PLEASE HELP ME!!!! I will give you 45 points Because that’s all I have!!!
Identify the variable and the constant in the expression below:
24 +f
Variable is:
Constant is:
Answer:
24F...........,.....
Find the slope and y-intercept from the following graph of a linear equation.
Answer:
The slope is 4x and the y intercept is 3
Hope this helps. :)
Answer:
a
Step-by-step explanation:
mark me brainiest
and look up slope calculator and use omni calculator
In 8 hours if Martha writes 2 essays, how many essays can she write in 15 hours?
Answer:
Martha can write 3.75 essays in 15 hours. (Which is a lot for me)
Step-by-step explanation:
First, I divide 2 by 8.
2 ÷ 8 = 0.25
Next I multiply 0.25 by 15.
0.25 * 15 = 3.75
So, the answer is 3.75
Hope this helps! :)
Step-by-step explanation:
in 8 hours she wrote = 2 essay
in 1 hour she wrote = 2/8 = 1/4
in 15 she wrote = 15 × 1/4 = 15/4 or 3.75 essays .
plz mark my answer as brainlist plzzzz.
hope this will be helpful to you.
What is the name of this solid figure?
Answer:
the picture isn't whole, but what I see is a cylinder.
Step-by-step explanation:
plz help fast solve this
Answer:
3
1
2
Step-by-step explanation:
Math simplification
Answer:
A=3, B=1, C=2
Step-by-step explanation:
Nancy started the year with $425 in the bank and is saving $25 each week. Sam started the year with $705 but is spending S15 a week. Write a system of equations that model the following situation.
Define cach variables with a "Let" statement, write two equations, and solve completely.
Answer:
Step-by-step explanation:
Let x equal number of weeks and y equal money in the bank.
Nancy, y=425+25x
Sam, y=705-15x
The system of equations:
Nancy: [tex]y=\$425+\$25x[/tex]
Sam : [tex]y=\$705-\$15x[/tex]
Given:
Amount in Nancy's bank = $425
Amount saved by Nancy each week = $25
Amount in Sam's bank = $705
Amount spend by Sam each week = $15
To find:
The system of equations describing the given models.
Solution
1) Amount in Nancy's bank = $425
Amount saved by Nancy each week = $25
Let the number of weeks Nancy saving her money be 'x'.
Let the total amount of money in Nancy's bank after x weeks be 'y'.
[tex]y=\$425+\$25\times x\\y=\$425+\$25x[/tex]
The equation for Nancy:
[tex]y=\$425+\$25x[/tex]
2)
Amount in Sam's bank = $705
Amount spend by Sam each week = $15
Let the number of weeks Sam spending his money be 'x'
Let the total amount of money left in Sam's bank after x weeks ='y'
[tex]y=\$705-\$15\times x\\y=\$705-\$15x[/tex]
The equation for Sam:
[tex]y=\$705-\$15x[/tex]
Learn more about system of equations here:
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Which is equivalent to 644 ?
6442
O 244
O 4
O 16
O 164/4
Answer:
I belive it would be A
Step-by-step explanation:
The equivalent of 64/4 is 16
How to determine the equivalent?The expression is given as:
64/4
Evaluate the quotient of 64 and 4 i.e. divide 64 by 4
64/4 = 16
Hence, the equivalent of 64/4 is 16
Read more about equivalent expressions at:
https://brainly.com/question/2972832
what is the the 70th term of the arithmetic sequence 26, -19, -12,
Answer:
464 is da answer
Step-by-step explanation:
26-7(70)=? 490-26
AGAIQJSJWJ PLEASE HELPP
y = 5x - 6&y= -4x + 3
Use the Equal Values Method to solve for x and y
Answer: x = 1 and y = -1
Step-by-step explanation:
Since both equations are equal to y, that means the equations are both equal to each other
5x - 6 = -4x + 3
Solve for x how you would traditionally do it with any other one-variable equation
9x = 9
x = 1
Plug the now known x value into either equation and you will get your y value.
5(1) - 6 = -1
-4(1) + 3 = -1
I will give you brainlist if you answer this correctly
Answer:
its 2,340
Step-by-step explanation:
Help with this and I will give you the brainiest and you get 10 points
Answer:
1.-22
2.2
3.48
4.3b
5.1+5v
6.2m+20
7.p=-9
8.x=8
write and equation for the trend line shown
Answer:
y = [tex]-\frac{10}{3}[/tex]x + 70
or
y = 70 [tex]-\frac{10}{3}x[/tex]
(They're both the same equation, whichever one you prefer you can use!)
What is the sign of f on the interval?
The function f(x) will be sometimes positive and sometimes negative on the interval
Option (3) is correct.
What is a function?An arrangement known as a function connects inputs to essentially one output.
In other words, a function is a relationship between variables, and the nature of that relationship—for example, y = sinx and y = x +6—defines the function.
Given function:
f(x) = (x - 5) (2x - 7) (7x - 3)
The term (x - 5) will be negative if x < 5.
The term (2x - 7) will be negative if x<3.5
So, If x = 4, (x - 5) will be negative but (2x - 7) will be positive, resulting in a negative overall value.
Therefore, if x = 3, then (x - 5) will be negative, as well as (2x - 7), making the whole value negative.
Hence, the function f is sometimes positive and sometimes negative on the interval.
Learn more about function here:
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Which answer describes the sequence {1,3,7,15,…} as a mathematical statement?
Answer:
so just successive powers of 2
Step-by-step explanation:
1, 3, 7, 15, 31, 63, _? Add successive powers of 2 to the number: 1+2=3; 3+4=7; 7+8=15; 15+16=31; 31+32=63; 63+64=127.
The given sequence {1,3,7,15,…} has general term S = A(n-1) + (A(n-1) + 1) where A0 = 1.
Given that,
To justify the given sequences 1,3,7,15.
Arithmetic progression is the series of numbers that have common differences between adjacent values
What is geometric progression?Geometric progression is a sequence of series whose ratio with adjacent values remains the same.
Here,
Given a sequence, 1,3,7,15
where first term A0 = 1
second term A1 = 1 + 2 = 3
third term A2 = 3 + 4 = 7
From above sequence we can conclude the general term for the sequence as, S = A(n-1) + (A(n-1) + 1)
Thus, the given sequence {1,3,7,15,…} has general term S = A(n-1) + (A(n-1) + 1) where A0 = 1.
Learn more about arithmetic progression here:
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Similar triangles are congruent.
sometimes
always
never
What fraction is greter than 3 - 5
Answer:
4/5 is greater
Step-by-step explanation:
Correct will get brainliest!!!!!!!
Answer:
Third option is the correct answer
Step-by-step explanation:
Point T is between the point R and point S.
A local bookstore has 30 copies of a bestseller when it opens on Monday morning. On Monday, it sells 6 copies of the book. On Tuesday, it sells 3 copies. On Wednesday, it receives a shipment containing 24 copies of the books and also sells 8 copies. How many books does the store have at the end of Wednesday?
so it starts with 30
monday: 30-6 24 copies left
tuesday: 24-3 21 copies left
wenesday: 21+ 24 45-8 37 copies
its has 37 copies left
Find the measure of <BAC
Answer:
56 degrees
Step-by-step explanation:
which table of values can be defined by the function y =6x - 2?
Answer:
the answer is A
Step-by-step explanation:
Answer correctly
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0+0
Answer:
=0
Step-by-step explanation:
0+0=0
it can't be 2 zeroes, just 0
Answer:
0+0=0
Step-by-step explanation:
my albert einstein maths =0+0=15
2/5 in Fraction form?
Answer:
2/5 is fraction form.
0.4 is decimal form btw.
(06.02)
The graph shows the number of hours driving and the distance from home:
Road Trip
350
300
250
200
Distance from Home
150
100
50
0
10 1
2.
3 4 5 6
Hours Driving
Which statement best describes the relationship between the number of hours driving
a
As the hours driving increases, the distance from home decreases
Ob
As the hours driving increases, the distance from home increases.
As the hours driving decreases, the distance from home increases
No relationship can be determined.
Answer:
The answer is B.)
Step-by-step explanation:
Step-by- step explanation:
Answer:
The answer is B because it is the one that makes the most sense.
Step-by-step explanation:
Find the quotient:
2x² – 9x - 5
x-5
10)
Type answer here
Answer: 2x+1
Step-by-step explanation:
6th grade work please help
Answer:
Same
Step-by-step explanation:
it's that the question interesting anaways
Answer: same
you have to name the transformation i guess
Step-by-step explanation:
Every point moves the same distance in the same direction on a coordinate plane.
Translation mean Reflection, Rotation, and Dilation