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emmasim [6.3K]
3 years ago
11

What is the value of k?

Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
3 0

Answer:

k = 10

Step-by-step explanation:

The triangles angels added up must equal 180 degrees, and the top angle is 65 degrees by the 180 degree rule.  

So 10k + 15 must equal the remaining 115

subtract 15 from each side and you get 10k = 100

divide each each by 10 and you get the answer of k = 10

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Maru [420]
This is how you solve this problem:
.10d + .05n = 5.25

(plug in the number of dimes we have)

(21 x .1) + .05n = 5.25

(multiply number of dimes x value of the dime)

2.10 + .05n = 5.25

(subtract 2.10 from both sides)

.05n = 3.15

(divide both sides by .05 to get the number of nickels)

n = 63 nickels

Hope this helps!

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3 years ago
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ipn [44]

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3 years ago
Please help with this question?!?
Charra [1.4K]

Answer:

50.3

Step-by-step explanation:

area for circle formula=πr^2

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4 0
3 years ago
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The cumulative distribution function f(x) of a discrete random variable x is given by f(0) =. 30, f(1) =. 70, f(2) =. 90 and f(3
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Correlation between x & y is 0.6125.

In probability theory and statistics, the cumulative distribution function of a real-valued random variable X, or simply the distribution function of X weighted by x, is the probability that X takes a value less than or equal to x.

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Answer:

The answer for this problem is

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Step-by-step explanation:

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