It cost $520 to plant 4 acres of corn. How much would it cost to plant 3/5 acre of corn?

Answers

Answer 1

Answer: Importance should be given to all the informations that are already given in the question. based on those information's, the answer to the question can be easily determined.
The cost of planting 4 acres of corn = 520 dollars
Then
the cost of planting 1 acre of corn = (520/4) dollars
   = 130 dollars
So
The cost of planting 3/5 acres of corn = (3/5) * 130 dollars
   = 3 * 26 dollars
   = 78 dollars
So the cost of planting 3/5 acre of corn is $78. I hope the procedure is clear enough for you to understand. You can always use this method in future for solving similar type of problems without requiring any help from outside.

Answer 2

Answer: $455
520 / 4 = 130 / 2 = 65

130 x 3 = 390 + 65 = 455

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PLEASEE HURRY!!!!!!!! Tom determines that the system of equations below has two solutions, one of which is located at the vertex of the parabola.
Equation 1: (x – 3)2 = y – 4
Equation 2: y = -x + b
In order for Tom’s thinking to be correct, which qualifications must be met?
A: b must equal 7 and a second solution to the system must be located at the point (2, 5).
B: b must equal 1 and a second solution to the system must be located at the point (4, 5).
C: b must equal 7 and a second solution to the system must be located at the point (1, 8).
D: b must equal 1 and a second solution to the system must be located at the point (3, 4).

Answers

Answer:

Option A: b must equal 7 and a second solution to the system must be located at the point (2, 5)

Step-by-step explanation:

step 1

Find the vertex of the quadratic equation

The general equation of a vertical parabola in vertex form is

$y=a(x-h)^2+k$

where

(h,k) is the vertex

we have

$(x-3)^(2)=y-4$

$y=(x-3)^(2)+4$

The vertex is the point (3,4)

step 2

Find out the value of b in the linear equation

we know that

If the vertex is a solution of the system of equations, then the vertex must satisfy both equations

substitute the value of x and the value of y of the vertex in the linear equation

$y=-x+b$

For x=3, y=4

$4=-3+b$

$b=7$

$y=-x+7$

step 3

Find out the second solution of the system of equations

we have

$y=(x-3)^(2)+4$ -----> equation A

$y=-x+7$ ----> equation B

solve the system of equations by graphing

Remember that the solutions are the intersection points both graphs

The second solution of the system of equations is (2,5)

see the attached figure

therefore

b must equal 7 and a second solution to the system must be located at the point (2, 5)

Answer:

Step-by-step explanation:

What is -36+-45 I need help with this question

Answers

-81

if you are adding a negative to another negative you are going to get a larger negative number, or think of it as moving further left on the number line

$-36+(-45)= \n \n -36-45=-81 \n \n \text{gather two negative numbers}$

Which mathematical symbol would best fill in the blank to compare the two real numbers? 7.6 repeating blank square root 55

Answers

The square root of 55 is 7.4161984871. which is less than 7.6

So:

√55 < 7.6

square root of 55 is 7.4161984871. so 7.6 is biger

Ms. Ramos buys a rare painting for m dollars. She sells it for 5 times the amount she paid for it, or 5m. Her profit is5m-m
She purchases another painting using half of the profit from the sale. Which expression represents how much MS
Ramos paid for the second painting?
•4m+2. •5m+2. •5m/2. •4m/2

Answers

I’m pretty sure the answer is 4m/2

Answer:

(D) 4m/2

Step-by-step explanation:

took test

What is 2+5????????????????????????????????/

Answers

7 expect on the question where you were asking there was pattern where you had to add 5 to the equation 2+5 so the equation red 2+5+5 which does equal 12

its seven seven seven

Find the slope and reduce.
P=(-5, 2) Q=(-3, 6)

Answers

Good evening,

Answer:

Slope = 2

Step-by-step explanation:

(6-2)÷((-3)-(-5))=2.

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