Solve for x to the nearest tenth

Mathematics

2 answers:

Bess [88]3 years ago

8 0

Equal 5 square foot

Lady_Fox [76]3 years ago

6 0

3^2+4^2=
9+16=25
Square root of 25= 5

Answer: 5

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What is the largest digit N for which 2345N is divisible by 6?

kotegsom [21]

Consider this option (this is not the only way):
1. according to the condition 2345N is divisible by 6, it means, that N is even number (0;2;4;6 or 8).
2. 6=3*2, then the number 2345N is divisible by 3 also. It means, that the number (2+3+4+5+N)=(14+N) is divisible by 3, where N={0|2|4|6|8}.
3. using items 1 and 2:
(14+4)=18; only 18 is divided by 3, it means that N=4.

answer: 4.

Note also, that only 23451; 23454 and 23457 are divided by 3. Only 23454 is divided by 6 (23454/6=3909).

3 0

3 years ago

A store had 100 t-shirts. Each month, 30% of the t-shirts were sold and 25 new t-shirts arrived in shipments. Which recursive fu

Mashutka [201]

Answer:

$f(a_n) = 0.7f(a_{n-1}) + 25$

Step-by-step explanation:

The number of t-shirts a in month n is 70% of the number of t-shirts in month n-1 plus 25 because they always sell 30% of the t-shirts and get 25 t-shirts in shipments. $f(0)=100$ can be included as an after-thought.