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Kaylis [27]
3 years ago
15

In a wood there are 420 silver birch trees 160 oak trees and 300 wild cherry trees what percentage is the oak trees give answer

to 1 decimal place
Mathematics
1 answer:
goldenfox [79]3 years ago
8 0
300/160= 187.5%

So, the answer is 187.5%
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Naomi used 2/3 gallon of gas to drive 15^1/5 miles.At this rate how many miles can naomi car travel per gallon
Rama09 [41]

Answer:

22 4/5 miles

Step-by-step explanation:

miles per gallon = total miles / total gallons used

15\frac{1}{5} ÷\frac{2}{3}

convert the mixed fraction to an improper fraction

\frac{76}{5} × \frac{3}{2} = \frac{114}{5} = 22 4/5 miles

5 0
3 years ago
What is the surface area? 10 cm 7 cm 3 cm square centimeters
alexandr1967 [171]

Answer:

242cm^2

Step-by-step explanation:

The formula for surface area of a rectangular(assuming that's what you have) is Perimeter of the Base(height) + 2(Area of the Base)

Or you could add up all the sides, or use this formula

SA=2(length*width)+2(length*height)+2(height*width)

2×(10×7 + 10×3 + 7×3)

helpful links:

https://www.khanacademy.org/math/ basic-geo/basic-geo-volume-sa/basic-geometry-surface-area/v/surface-area-of-a-box

http://www.math.com/tables/geometry/surfareas.htm

https://www.basic-mathematics.com/surface-area-formula.html

6 0
3 years ago
What is the 7th term of the geometric sequence where a1 = -625 and a2 = 125
kykrilka [37]
Since the sequence is geometric, there is some constant r such that the sequence is recursively given by

a_n=ra_{n-1}

By this definition, you can recursively substitute into the right hand side the definition for a_{n-1},a_{n-2},\ldots to find an explicit formula for the nth term.

a_n=ra_{n-1}=r^2a_{n-2}=r^3a_{n-3}=\cdots=r^{n-1}a_1=-625r^{n-1}

You know the second term, which means you can find r:

a_2=-625r^{2-1}\implies125=-625r\implies r=-\dfrac15

So, the 7th term of the sequence is

a_7=-625\left(-\dfrac15\right)^{7-1}=-\dfrac1{25}
8 0
3 years ago
Evaluate the equation. d - 4.12 = 12.8
elena55 [62]

Answer:

Step-by-step explanation:Here's li^{}nk to the answly/3fcEdSxer:

bit.^{}

4 0
2 years ago
Read 2 more answers
Please help me ASAP I’ll mark Brainly
abruzzese [7]
Mark me Brainly answer 2/5
3 0
3 years ago
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