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wariber [46]
4 years ago
15

as part of her effort to help the earth, melissa wants to plant 50,564 trees in the next 4 years. She planted 10,524 the first y

ear and 8,546 the second year. The third year she planted 2,315 more trees than the first and second year combined. How many more trees does she need to plant the fourth year to reach her goal?
Mathematics
1 answer:
dusya [7]4 years ago
5 0

Answer:

A

Step-by-step explanation:

As part of her effort to help the earth, melissa wants to plant 50,564 trees in the next 4 years. She planted 10,524 the first year and 8,546 the second year. The third year she planted 2,315 more trees than the first and second year combined. How many more trees does she need to plant the fourth year to reach her goal?

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Kim wants to estimate 5.494 + 1.108 by first rounding to the nearest hundredth. Find her mistake and correct it.
alexandr1967 [171]
Umm... not sure what her mistake is, but it should be 5.49+1.11=6.6
7 0
3 years ago
Jane is planning to put a new fence around her flower garden. She wants to change the shape, but doesn't want to change the amou
ANEK [815]

Answer:

The answer is below

Step-by-step explanation:

Let us assume that the length of the square be x. Therefore the area of the square is given as:

Area of square = length × length = x × x = x²

Given that the length of one side of the rectangle is twice the length of the other side. Let the length of the small side be a therefore the length of the long side = 2a

The area of the rectangle = length of small side × length of long side = a × 2a = 2a²

Since both the rectangle and square are to occupy the same space, hence:

Area\ of\ rectangle=Area\ of \ square\\\\2a^2=x^2\\\\a=\sqrt{\frac{x^2}{2} }\\ \\a=\frac{x}{\sqrt{2} }

Length of small side = a = \frac{x}{\sqrt{2} }, length of long side = 2a = \frac{2x}{\sqrt{2} }

The length of the sides are length of the square side divide by √2 (\frac{x}{\sqrt{2} }) and twice the length of the square side divide by √2 (\frac{2x}{\sqrt{2} })

6 0
3 years ago
For science class, a student recorded the high and low temperatures, in Fahrenheit, over a ten day period in September. The data
statuscvo [17]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
Acircular ring has across -section as shown .If the outer radias 20 mm and the inner radius 16 mm .Calculate the cross - section
Zina [86]

Answer:

452.45mmm^2

Step-by-step explanation:

Step one:

Given data

outer radius R= 20mm

inner radius r= 16mm

let us find the area of the outer circle

Area= πR^2

Area= 3.142*20^2

Area= 3.142*400

Area= 1256.8 mm^2

let us find the area of the inner circle

Area= πr^2

Area= 3.142*16^2

Area= 3.142*256

Area= 804.35 mm^2

Hence the area of the section is

Area of outer- Area of inner

=1256.8-804.35

=452.45mmm^2

4 0
3 years ago
. A pedestal is built using a trapezoid-shaped base. Find the area of the trapezoid.
Igoryamba

18m^2

area of a trapezoid = (a+b)/2 * h, where a and b are bases 1 and 2, and h is height

(4+8)/2 * 3

= 12/2 * 3

= 6 * 3

= 18

4 0
2 years ago
Read 2 more answers
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