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Lilit [14]
3 years ago
5

It cost 0.17 to mail a postcard and 0.25 to mail a letter. If Dykov spent $4.35 and wrote postcards and letters to 19 friends, h

ow many postcards did he mail?
Mathematics
1 answer:
guapka [62]3 years ago
3 0

Answer:

14 Letters and 5 Postcards

Step-by-step explanation:

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Twice the difference of a number and 2 is at least 24
Alexxx [7]

Answer:

2(x-2)≥ 24

Step-by-step explanation:

7 0
3 years ago
What is the distance between -12 and 3
lesantik [10]
15 units because I need to have
3 0
3 years ago
Please please help me!!!!
uysha [10]
Sure with what? what subject?
7 0
3 years ago
Brian rehr obtains an installment loan of 1250 to buy canoe requires 24 monthly payments and has an apr of 10%
Norma-Jean [14]

Answer:

I believe it is 122.6

Step-by-step explanation:

1,250 - 24 = 1,226

10%of 1,226 = 122.6

8 0
2 years ago
Two sides of a triangle have length 10 and 17. What is the range of the length of the 3rd side
andriy [413]

Answer:

13.7477270849 to 19.7230829233.

Step-by-step explanation:

1. Using the pythagorean theorem, a²+b²=c², we try different combinations of given lengths 10 and 17.

2. If 10 and 17 are legs and 10²+17²=√389 = 19.7230829233, then c=19.7230829233.

3. If 10 is a leg and 17 is a hypotenuse,

10²+b²=17²

100+b²=289

b²=189

b=13.7477270849

4. The case of 17 is a leg and 10 is a hypotenuse is not possible because the hypotenuse is the longest side.

5. The range of the length of the 3rd side is 13.7477270849 to 19.7230829233.

7 0
3 years ago
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