3 years ago

How do I find the answer for this equation 20x+15y= 330, when x+y =18

1 answer:

6 0

U divide 330 by 15 and get the quotient then do the same thing to 20 and add the quotients together to solve for x and y

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What is the answer to this <br> X^5×X^4

ANEK [815]

Answer:

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Step-by-step explanation:

X^5 x X^4 = 9 its basically adding them

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3 years ago

Find the 12th term of the geometric sequence 5, –25, 125, ...<br> HELP ASAP WILL NAME BRAINLEST

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A chettah can run 2 2/5 kilometers in 1 1/2 mintues at top speed. What id the top speed of a cheetah in kilometers per hour ?

Snezhnost [94]

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Step-by-step explanation:

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3 years ago

The graph shows how many cans of each type of cat food were sold one day.

hammer [34]

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3 years ago

Read 2 more answers

A sample of small bottles and their contents has the following weights (in grams): 4, 2, 5, 4, 5, 2, and 6. What is the sample v

Inessa05 [86]

Answer:

What is the sample variance of bottle weight 2.33

Step-by-step explanation:

First find the mean. The mean of the bottle weight is obtained by taking the ratio of the sum of ages and total number of ages.

Mean = (4+2+5+4+5+2+6) / 7

= 28 / 7

= 4

Sample Variance = $\frac{\left[\begin{array}{ccc}(4-4)^{2} +(2-4)^{2} +\\(5-4)^{2} + (4-4)^{2} +\\(5-4)^{2} + (2-4)^{2} +\\(6-4)^{2}\end{array}\right]}{7-1}$

= $\frac{0+4+1+0+1+4+4}{6}$

= 2.33

3 0

3 years ago