Math

QuestionPerform operations in given bases:
a. 31five 3five 31_{\text {five }} \cdot 3_{\text {five }}
b. 31five +3five 31_{\text {five }}+3_{\text {five }}
c. 51six 23six 51_{\text {six }} \cdot 23_{\text {six }}
d. 242five +4five 242_{\text {five }}+4_{\text {five }}
e. 10110two +10two 10110_{\text {two }}+10_{\text {two }}
f. 10011two 100two 10011_{\text {two }} \cdot 100_{\text {two }}

Studdy Solution

STEP 1

Assumptions1. The operations are performed in the base specified for each problem. . The base of a number is the number of unique digits (including zero) used to represent numbers in positional numeral systems.

STEP 2

For problem a, we need to multiply 31five 31_{\text {five }} and five _{\text {five }}. First, convert these numbers to base10.
31five =51+150=15+1=16ten 31_{\text {five }} = \cdot5^1 +1 \cdot5^0 =15 +1 =16_{\text {ten }}five =50=ten _{\text {five }} = \cdot5^0 =_{\text {ten }}

STEP 3

Multiply the base10 numbers.
16ten 3ten =48ten 16_{\text {ten }} \cdot3_{\text {ten }} =48_{\text {ten }}

STEP 4

Convert the result back to base.
48ten =13+41+30=143five 48_{\text {ten }} =1 \cdot^3 +4 \cdot^1 +3 \cdot^0 =143_{\text {five }}

STEP 5

For problem b, we need to add 31five 31_{\text {five }} and 3five 3_{\text {five }}. First, convert these numbers to base10.
31five =351+150=15+1=16ten 31_{\text {five }} =3 \cdot5^1 +1 \cdot5^0 =15 +1 =16_{\text {ten }}3five =350=3ten 3_{\text {five }} =3 \cdot5^0 =3_{\text {ten }}

STEP 6

Add the base10 numbers.
16ten +3ten =19ten 16_{\text {ten }} +3_{\text {ten }} =19_{\text {ten }}

STEP 7

Convert the result back to base5.
19ten =351+450=34five 19_{\text {ten }} =3 \cdot5^1 +4 \cdot5^0 =34_{\text {five }}

STEP 8

For problem d, we need to add 242five 242_{\text {five }} and 4five 4_{\text {five }}. First, convert these numbers to base10.
242five =252+451+250=50+20+2=72ten 242_{\text {five }} =2 \cdot5^2 +4 \cdot5^1 +2 \cdot5^0 =50 +20 +2 =72_{\text {ten }}4five =450=4ten 4_{\text {five }} =4 \cdot5^0 =4_{\text {ten }}

STEP 9

Add the base numbers.
72ten +4ten =76ten 72_{\text {ten }} +4_{\text {ten }} =76_{\text {ten }}

STEP 10

Convert the result back to base5.
76ten =352+05+50=301five 76_{\text {ten }} =3 \cdot5^2 +0 \cdot5^ + \cdot5^0 =301_{\text {five }}

STEP 11

For problem c, we need to multiply 51six 51_{\text {six }} and 23six 23_{\text {six }}. First, convert these numbers to base10.
51six =56+60=30+=31ten 51_{\text {six }} =5 \cdot6^ + \cdot6^0 =30 + =31_{\text {ten }}23six =6+360=+3=15ten 23_{\text {six }} = \cdot6^ +3 \cdot6^0 = +3 =15_{\text {ten }}

STEP 12

Multiply the base10 numbers.
31ten 15ten =465ten 31_{\text {ten }} \cdot15_{\text {ten }} =465_{\text {ten }}

STEP 13

Convert the result back to base6.
465ten =263+062+36+360=2033six 465_{\text {ten }} =2 \cdot6^3 +0 \cdot6^2 +3 \cdot6^ +3 \cdot6^0 =2033_{\text {six }}

STEP 14

For problem e, we need to add 10110two 10110_{\text {two }} and 10two 10_{\text {two }}. First, convert these numbers to base10.
10110two =24+023+22+2+020=16+4+2=22ten 10110_{\text {two }} = \cdot2^4 +0 \cdot2^3 + \cdot2^2 + \cdot2^ +0 \cdot2^0 =16 +4 +2 =22_{\text {ten }}10two =2+020=2ten 10_{\text {two }} = \cdot2^ +0 \cdot2^0 =2_{\text {ten }}

STEP 15

Add the base10 numbers.
22ten +2ten =24ten 22_{\text {ten }} +2_{\text {ten }} =24_{\text {ten }}

STEP 16

Convert the result back to base2.
24ten =24+23+022+02+020=11000two 24_{\text {ten }} = \cdot2^4 + \cdot2^3 +0 \cdot2^2 +0 \cdot2^ +0 \cdot2^0 =11000_{\text {two }}

STEP 17

For problem f, we need to multiply 10011two 10011_{\text {two }} and 100two 100_{\text {two }}. First, convert these numbers to base10.
10011two =24+023+022+2+20=16+2+=19ten 10011_{\text {two }} = \cdot2^4 +0 \cdot2^3 +0 \cdot2^2 + \cdot2^ + \cdot2^0 =16 +2 + =19_{\text {ten }}100two =22+02+020=4ten 100_{\text {two }} = \cdot2^2 +0 \cdot2^ +0 \cdot2^0 =4_{\text {ten }}

STEP 18

Multiply the base10 numbers.
ten 4ten =76ten _{\text {ten }} \cdot4_{\text {ten }} =76_{\text {ten }}

STEP 19

Convert the result back to base.
76ten =16+5+4+13+1+1+=100110two 76_{\text {ten }} =1 \cdot^6 + \cdot^5 + \cdot^4 +1 \cdot^3 +1 \cdot^ + \cdot^1 + \cdot^ =100110_{\text {two }}

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