A student government organization is selling Christmas trees as a fundraiser. On Friday, they sold 5 noble fir trees and 3 douglas fir trees for a total of $420. On Saturday, 12 noble fir trees and 9 douglas fir trees were sold for a total of $1,080. What is the cost per tree for each type?how much is 1 douglas?
how much is 1 noble fir?
Answers
5x+3y=420
12x+9y=1080
if you solve this you get,
x=60 and
y=40
SO Noble fir trees cost $60 and Douglas fir trees cost $40.
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A car and a limo each drive along a straight road between two points. Using the points on a map that the city created, the car will start at (5, 7) and will stop at (–2, –7), while the limo will start at (3, –5) and will stop at (–4, 9).What are the coordinates of the intersection that the car and the limo both drive through?
What is an equivalent fraction for 4 21/4
Tell whether the ratio form a proportion14/21 =26/39
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3/8 is closest to 4/8 which is 1/2, or 6/12
6/12 + 1/12 = 7/12
that is the estimated answer
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The value of x nearest to thousandths is 74.207
Solution:
Given that,
------ eqn 1
We can use logarithmic properties to solve for "x"
Using logarithmic properties:
Therefore, apply the above property in eqn 1
By using the logarithmic property,
Apply the above logarithmic property in above expression
Solve the above equation
We know that,
[ use calculator ]
Therefore,
Therefore, the value of x nearest to thousandths is 74.207
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XD
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Answers
The fraction 7/9 is greaterthan 0.7.
We have,
Given decimals and fractions.
0.7 and 7/9
Now,
0.7
This can be written as a fraction.
= 07/10
= 7/10
Multiply 9/9 to make the fractions the same.
= 63/90
And,
7/9
Multiply 10/10 to make the fractions the same.
= 70/90
Comparing the fractions 63/90 and 70/90.
63/90 < 70/90
This means,
0.7 < 7/9
Thus,
The fraction 7/9 is greaterthan 0.7.
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Answer: 7/9
Explanation:
In order to compare the two numbers, we can write both as a fraction.
7/9 is already written as a fraction. The other number instead can be written as
We see that this number is smaller than , because it has a greater denominator (and same numberator), so we can conclude that 7/9 is greater than 0.7.
URGENT!!!!!!!!!!
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2. Since our aquarium is a square tank that is 20 by 20 by 20, each side on the top is 20 inches long. We have 4 sides, so the perimeter is 4 x 20, or 80. The perimeter of the top of our tank is 80 in². As for the base, we already know that each side is 20, so, in order to find the area of the base, we just multiply 20 x 20 to get 400. The area of the base of the tank is 400 in².
3. Another rectangular prism with a volume of 8,000 might have dimensions of 40 by 20 by 10. These, multiplied together, equal 8,000, using the formula for the volume of a rectangular prism.
To find the dimensions of the rectangular prism that equal 8,000, I mostly just use trial and error. It helps if you think about it as 8, as shown in the first problem, or if you list the factors of 8. For instance, for number 3, I just used the factors of 8 to find some possible dimensions.
8 - 1, 2, 4, 8
For number 3, I used the factors 1, 2, and 4. To change it from 8 to 8,000, I just changed 1 to 10, 2 to 20, and 4 to 40.
Hope this helps!