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garri49 [273]
3 years ago
14

What is the value of n in the diagram below?

Mathematics
1 answer:
IRINA_888 [86]3 years ago
5 0

Answer:

n = 24

Step-by-step explanation:

(n + 18) and 2n are "complementary angles:"  they add up to 90°.

Thus, n + 18 + 2n = 90.  Combining the n terms results in 3n + 18 = 90.

Then 3n = 72.  Dividing both sides by 3 results in n = 24.

n is 24, so n + 18 is 42 and 2n is 48.  Note that 42 and 48 add up to 90.

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Sarah bought 18 boxes of 65 pens at $12 a box. She sold 378 of them at 3 for $1.00 and the rest at 4 for $1.00. Find her total p
KonstantinChe [14]

Answer:

$108

Step-by-step explanation:

1 box = $12

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Total = 18×65 = 1170 pens

Cost price, Cp = $216

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1170-378= 792 pens remaining

4 = $1

792 = 792/4 = $198

Total selling price, sp = 126+198 = $324

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Mnenie [13.5K]

Answer:

90

Step-by-step explanation:

i think it is 90

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3 years ago
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Can someone help me solve for a ?
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Answer:

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Step-by-step explanation:

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Answer:

\$286.00

Step-by-step explanation:

we know that

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