Answer:
[tex]y=-\frac{15-4x}{5}[/tex]
Step-by-step explanation:
[tex]4x-5y=15[/tex]
Subtract 4x from both sides:
[tex]4x-5y-4x=15-4x[/tex]
[tex]-5y=15-4x[/tex]
Divide both sides by -5:
[tex]\frac{-5y}{-5}=\frac{15-4x}{-5}[/tex]
[tex]y=-\frac{15-4x}{5}[/tex]
1
A line segment has the endpoints (-7,-4) and (9,8). What are the coordinates of the
midpoint of this line segment?
The area of a square is given by the expression s • s square inches. Where s is the length of a side in inches. Write the expression as a power. Then find the are of square of a with a side length of 7 inches.
Answer:
see explanation
Step-by-step explanation:
A = s × s = s²
Given s = 7 , then
A = 7² = 49 in²
If I want to buy a pair of sunglasses and the original price is $120, how much will I pay if they are 50% off? What if they were 25% off?
Answer:
$60, $90
Step-by-step explanation:
Amount paid when 50% off
=$ 120 - 50/100 * 120 = $ 120 - $60 = $60
Amount paid when 25% off
=$ 120 - 25/100 * 120 = $ 120 - $30 = $90
Math I’m giving brainlist and 20 points
Answer:
What work are you referring to
Ronald rents a car from Cheap Rent-a-Car for $25 plus $0.05 per mile. Dixon rents a car
from Great Cars for S40 plus $0.03 per mile. How many miles must they both drive for
their rental fees to be the same?
Answer:
750 miles
Step-by-step explanation:
Ronald
Rental fee = fixed cost + variable cost
= $25 + $0.05x
Where x = number of miles
Dixon
Rental fee = fixed cost + variable cost
= $40 + $0.03x
How many miles must they both drive for their rental fees to be the same?
Equate the two equations
$25 + $0.05x = $40 + $0.03x
Collect like terms
0.05x - 0.03x = 40 - 25
0.02x = 15
Divide both sides by 0.02
x = 15 / 0.02
= 750 miles
is it ever possible that |x| = -x and can you explain please
Answer:
No
Step-by-step explanation:
The reason is that the absolute value of x is always not going to equal a negative.
|-1| = 1 (correct)
|-1| = -1 (incorrect)
Answer:
Never.
Step-by-step explanation:
Whenever there is an absolute value is a variable or number and it's negative or positive, the answer will always be positive ex., |-x| = x |x| = x
A square has an area of 9 cm what is it's side length
Answer:
A=3
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
itttttttttttttt isssssssssss =3
algebra 1, i don’t understand step 2
What is 15% of $79.99?
Answer:
11.9985
Step-by-step explanation:
79.99 x .15 = 11.9985
I’m struggling a bit on this question. I could use some help please. Number 12
Answer:
(-3, -2)
Step-by-step explanation:
Please see the attached pictures for the full solution.
Please help solve this and show work 4(x+1)-9=11
Answer:
x = 4
Step-by-step explanation:
Given
4(x + 1) - 9 = 11 ( add 9 to both sides )
4(x + 1) = 20 ( divide both sides by 4 )
x + 1 = 5 ( subtract 1 from both sides )
x = 4
Answer:
Step-by-step explanation:
4x + 4-9=11
4x -5 =11
4x -5+5 =11+5
4x =16
4x divide by 4 is equal to 16 divide by 4
x is equal to 4
A car is traveling down a highway at a constant speed, described by the equation LaTeX: d=65td=65t, where represents the distance, in miles, that the car travels at this speed in t hours. How many miles does the car travel in 1.5 hour?
Answer: The car travels 97.5 miles in 1.5 hour.
Step-by-step explanation:
Given: A car is traveling down a highway at a constant speed, described by the equation , described by the equation [tex]d=65t[/tex], where represents the distance, in miles, that the car travels at this speed in t hours.
To find : Number of miles car travel in 1.5 hour.
Simply put t= 1.5 in the given expression , we get
65(1.5)= 97.5
That means , the car travels 97.5 miles in 1.5 hour.
80%
as in a decimal 80%
Answer:
0.8
Step-by-step explanation:
"percent" means "per 100" which is the same as "divide by 100."
To change a percent to a decimal, divide the percent by 100.
80% = 80/100 = 0.8
It takes 2 finish carpenters 8 days to do the work. Each finsh carpenter ears $37.50 per hour and works 7 hours per day. How much will it cost to hire the finish carpenters?
Answer:
Total cost= $4,200
Step-by-step explanation:
Giving the following information:
It takes 2 finish carpenters 8 days to do the work.
Each finish carpenter ears $37.50 per hour and works 7 hours per day.
To determine the total cost, first, we need to structure the total cost formula:
Total cost= 2*(37.5x)
x= total number of hours
Now, for 8 days:
Total hours= 8*7= 56
Total cost= 2*(37.5*56)
Total cost= $4,200
Mako's goal is to save $42. He currently has $2 and
plans to save $18 per week. Let x represent the
number of weeks Mako saves money.
Answer:
5 weeks its 40 divided by 8
Step-by-step explanation:
13.
Given: MZD=57" and mZF = 64°
F
H
E
What is the measurement of ZG?
I really would appreciate it if you could help, plz
Answer:
59
Step-by-step explanation:
the inside of a triangle is 180° so add 57+64 which brings u to 121 and then take 180-121 to get the answer of 59
Given the diagram below, what is the length of segment ef
help
i need H - G answered
Answer:
See below.
Step-by-step explanation:
H.
f = 3x + 31
c = 12x - 1
3x + 31 + 12x - 1 = 180
15x + 30 = 180
15x = 150
x = 10
same-side interior, supplementary
R.
b = x - 10
g = 4x + 60
x - 10 + 4x + 60 = 180
5x + 50 = 180
5x = 130
x = 26
same-side exterior, supplementary
E.
d = 2x + 13
e = 7x + 5
2x + 13 + 7x + 5 = 180
9x + 18 = 180
9x = 162
x = 18
same-side interior, supplementary
I.
a = 10x - 30
e = 8x + 20
10x - 30 = 8x + 20
2x = 50
x = 25
corresponding, congruent
G.
b = x + 30
h = 5x - 14
5x - 14 = x + 30
4x = 44
x = 11
alternate exterior, congruent
The perimeter of a rectangle is 150. The length of the rectangle is 9 more than the width. Find the width.
Answer:
33
Step-by-step explanation:
Length = Width + 9
Perimeter = Length + Length + Width + Width
Perimeter = Width + 9 + Width + 9 + Width + Width = 150
4(Width) + 18 = 150
Subtract 18 from both sides:
4(Width) + 18 - 18 = 150 - 18
4(Width) = 132
Divide 4 on both sides:
[tex]\frac{4(Width)}{4} =\frac{132}{4}[/tex]
Width = 33
PLEASE HELP...question says “Sylvia bought four pens for one dollar each and five folders for three dollars each. Write a numerical expression to represent this situation and then find the total cost in dollars”
What the hell im so confused
Answer:
y= 4(x) + 3(5x)
$19
Step-by-step explanation:
Carson bought 2.5 pounds of gummy bears for $2.75 per pound. How much did he spend on gummy bears? (Round your answer to the nearest hundredths place.) Please help meeeeeeee
Major went to the Appalachian Fair. The entrance fee was $10, and he purchased 25 tickets. Write an equation to find the price of each ticket if he spent a total of $47.50. You do NOT have to solve it.
Answer:
25x+10=47.50
Step-by-step explanation:
x represents the ticket amount and if he buys 25 tickets then that will be 25 times x. Plus the $10 entrance fee.
f(x)=2x 2 +9x {Find }f(10) Find f(10)
Answer:Answer:
d=√
−2x2+y
900f4i2n2x
or d=−√
−2x2+y
900f4i2n
Step-by-step explanation:
Let's solve for d.
y=2x2+9xfindf(10)findf(10)
Step 1: Flip the equation.
900d2f4i2n2x+2x2=y
Step 2: Add -2x^2 to both sides.
900d2f4i2n2x+2x2+−2x2=y+−2x2
900d2f4i2n2x=−2x2+y
Step 3: Divide both sides by 900f^4i^2n^2x.
900d2f4i2n2x
900f4i2n2x
=
−2x2+y
900f4i2n2x
d2=
−2x2+y
900f4i2n2x
Step 4: Take square root.
d=√
−2x2+y
900f4i2n2x
or d=−√
−2x2+y
900f4i2n2x
2x
Answer:
d=√
−2x2+y
900f4i2n2x
or d=−√
−2x2+y
900f4i2n
The value of f(10) for function f(x) = 2x² + 9x is 290.
What is an algebraic expression?An algebraic expression is consists of variables, numbers with various mathematical operations,
The given function is,
f(x) = 2x² + 9x (1)
To find the value of f(10),
Substitute x = 10,
f(10) = 2(10)² + 9(10)
f(10) = 2 x 100 + 90
f(10) = 200 + 90
f(10) = 290
The required value of f (10) is 290.
To know more about Algebraic expression on:
https://brainly.com/question/19245500
#SPJ3
Michael loves to run. It takes him 25.3 minutes to complete a 10 mile run. At this rate, how long would it take him to run 16 miles?
Answer:
0.632
Step-by-step explanation:
divide 16 ÷ 25.3 rurhrhr rhrhrhdh dhejejej ejehejeje behe
Which is the value of 3b² — b when b = 5?
Answer:
The answer is
70Step-by-step explanation:
3b² - b
when b = 5
Substitute the value of b that's 5 into the expression
That's
3(5)² - 5
= 3(25) - 5
= 75 - 5
We have the final answer as
70Hope this helps you
-2/5 + 1/2 please help guys I really need it
Answer:the answer is 1/10
Step-by-step explanation:
A farmer has 140 bushels of corn for sale at a farmers market. He sells an average of 15 1/8 bushels each day. After 6 days, what is the change in the total number of bushels the farmer had for sale at the farmers market
Step-by-step explanation:
farmer has 140 bushels of corn for sale at a farmers market. He sells an average of 15 1/8 bushels each day. After 6 days, what is the change in the total number of bushels the farmer had for sale at the farmers market
Evaluate the expression: -7(3t - 8) + 5, when t = -6
Answer:
147 maybe?
Step-by-step explanation:
Need help please. Please help me.
Answer:
Exact Form:
2/45
Decimal Form:
0.04 (4 being repeated)
A. -3
B. 6
C. 5
D. -4
Answer:
B
Step-by-step explanation:
So we want to find the value of x.
Note that the entire segment (JK) is the sum of the segments JI and IK. In other words:
[tex]JK=JI+IK[/tex]
We know that JK is (2x-1), JI is (2), and IK is (x+3). Substitute:
[tex]2x-1=(2)+(x+3)[/tex]
On the right, add:
[tex]2x-1=x+5[/tex]
Add 1 to both sides:
[tex]2x=x+6[/tex]
Subtract x from both sides. The right cancels:
[tex]x=6[/tex]
And the value of x is 6.
Our answer is B.