You use 4 gallons of water on 30 plants in your garden. At that rate how much water will it take to water 45 plants?

Answers

Answer 1

Answer: The easiest way to do this is with cross-multiplication.

4 gallons for 30 plants is written as 4/30

x gallons for 45 plants is written as x/45

Multiply 4 x 45 = 180

divide by 30

= 6 gallons of water

Answer 2

Answer: 4/30 = x/45
cross multiply
180 = 30x
divide
x = 6 gallons

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A thick hedge is planted 20 feet away from 15-loot lamppost. The lamp throws a shadow 10 feet from the hedge. What is the approximate height of the hedge

Answers

Answer:

10 feet

Step-by-step explanation:

you minus the distance between them and the shadow

witch is 20-10 and you will get 10

Miller has a painting that is 4 ft by 8 ft. What will the dimensions of the painting be if he scales it down by a factor of one-fourth ?

Answers

1 ft by 2 ft I believe

Plz solve 7 8 9 and 10

Answers

7)3070m
8)4620.50m
9)370cm
10)2720m

4x-y=7 , 4x-2y=2
Solve the equation with elimination

Answers

The solution of the system of linear equations by elimination method will be (3, 5).

What is the solution to the equation?

The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.

The system of linear equations is given below.

4x - y = 7 ...1

4x - 2y = 2 ...2

Subtract equation 2 from equation 1, then we have

2y - y = 7 - 2

y = 5

Then the value of the variable 'x' is given as,

4x - 5 = 7

4x = 12

x = 3

The solution of the system of linear equations by elimination method will be (3, 5).

More about the solution of the equation link is given below.

brainly.com/question/545403

#SPJ2

$\left\{\begin{array}{ccc}4x-y=7\n4x-2y=2&\text{change the signs}\end{array}\right\n\underline{+\left\{\begin{array}{ccc}4x-y=7\n-4x+2y=-2\end{array}\right}\qquad\text{add both sides of the equations}\n\n.\qquad\qquad \boxed{y=5}\n\n\text{Put the value of y to the first equation:}\n\n4x-5=7\qquad\text{add 5 to both sides}\n\n4x=12\qquad\text{divide both sides by 4}\n\n\boxed{x=3}\n\nAnswer:\ \boxed{x=3\ and\ y=5}$

A photograph is framed. Dimensions of the photo with the frame is 8 cm by 6 cmand dimension without the frame is 6 cm by 4.5 cm. Find the area of the frame. Also,
find the cost of polishing the frame at a rate of ₹5 per sq.cm

Answers

Area of the frame = ((8*6)-(6*4.5)) = 21 cm^2.

Price to polish it = ₹21/5 = ₹4.2

Which relation is a function? A.

B.

C.

D.

Answers

A function is relationship where a member of the Domain maps to one and only one member of the Range.

To prove a relationship is a function, a VERTICAL LINE TEST may be performed. If a vertical line cuts the graph of a relationship only once then it is a function if not, then it is not.

View the image attached for the test.

The answer is option A

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