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Blizzard [7]
3 years ago
14

On a string of lights for every 6 green lights,there are 4 white lights.If their are 30 green lights,how many white lights are t

here?
Mathematics
2 answers:
s344n2d4d5 [400]3 years ago
7 0
You have to do 4 times 6 then add 30 to it i think
kifflom [539]3 years ago
3 0
30÷5=6

4×5=20

for every 30 green lights there are 20 white lights
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Anita invested $6000, some at 5% and the rest at 6%. If the yearly income is $337.50, what is the amount invested at each rate?'
allochka39001 [22]
Is this rsm? lol okay.

x is the amount of money invested at 5%
y is the amount of money invested at 6%
the total amount of money invested is $6000, or x+y
when it says the yearly income is $337.50, it means that the 5% of x plus the 6% of y equals $337.50.

now write the two equations:

x+y =6000

0.05x + 0.06y = 337.50

now, find y for the first equations, which is y= 6000 - x. use this equation to substitute for the second equation.

0.05x + 0.06(6000 -x) = 337.50

blah, blah, blah, solve for x... you should get x = 2250, and y = 3750.

I hate money problems like this, hope it helps.


3 0
3 years ago
Read 2 more answers
Will Identify the outlier in the data set. 77, 73, 78, 78, 71, 75, 120, 75, 77, 72, 75, 70 The outlier is​
o-na [289]

Answer:

120

Step-by-step explanation:

120

every other number is in the 70s

7 0
2 years ago
1. Which of the following measurements could be the three side lengths of a right triangle? a. 4 cm, 5 cm, 9 cm b. 12 cm, 20 cm,
HACTEHA [7]

Answer:

b and c

Step-by-step explanation:

The Triangle Inequality Theorem lets us know that the sum of the two shortest sides of the triangle must be greater than the third side of the triangle.

In both A and D, the sum of the shortest two sides are equal to, not greater than the third side, so they will not form a triangle.

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8 0
3 years ago
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Height per cup added can be calculated by finding the slope of the line that runs through the two given points on the graph, (3, 5.5) and (8, 8).

Formula for slope =

Let,

3 0
3 years ago
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matrenka [14]

Answer:

(3x+4y-2z=-1)= x=-1/3-4/3y+2/3z

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Step-by-step explanation:

6 0
2 years ago
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