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officialrogerfp3gf2s
08.07.2019 •
Mathematics
In the stamp collection below. the denominations have not been entered. use the clues below to set up equations and determine the proper denominations. clue 1: the r stamps total 24 cents. r1 + r2 + r3 = 24 clue 2: the r stamps with animals total 16 cents. r1 + r2 = 16 combining this with clue 1, we know r3 = 8 clue 3: the stamps with animals total 20 cents. r1+ + s2 = 20 combining this with clue 2, we know s2 = 4 clue 4: the stamps with two animals total 13 cents. s2 + r2 = combining this with what we learned from clue 3, we know r2 = clue 5: the two stamps with a person total 22 cents. + t2 = 22 combing this with what we learned from clue 2, we know t2 = clue 6: the triangle stamps total 24 cents. t1 + = 24 combining this with what we learned from clue 5, we know = 10 clue 7: the stamps with mechanical devices total 20 cents. t1 + r3 + s1 = combining this with what we learned from clue 2 and clue 6, we know s1 = the s stamps total 11 cents. s1 + s2 + = 11 combining this with what we learned from clue 3 and clue 7, we know = 5
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Ответ:
1. R1 + R2 + R3 = 24
2. R1 + R2 =16 Subtract
R3= 8
3. R1 + R2 + S2 = 20
16 + S2 = 20 Subtract 16 from both sides.
S2 = 4
4. S2 + R2 = 13
4 + R2 = 13 Subtract 4 from both sides.
R2 = 9
5. R3 + T2 = 22
8 + T2 = 22
T2 = 14
6. T1 + T2 = 24
T1 + 14 = 24
T1 = 10
7. T1 + R3 + S1 = 20
S1 + 8 + 10 = 20
S1 + 18 = 20
S1 = 2
S1 + S2 + S3 = 11
2 + 4 + S3 = 11
S3 = 5
I don't see anything for R1 but R1 + R2 + R3 = 24
R1 + 9 + 8 = 24
R1 = 7
Summary
R1 = 8
R2 = 9
R3 = 8
S1 = 2
S2 = 4
S3 = 5
T1 = 10
T2 = 14
Ответ:
scientific notation is a way scientists simplify very large numbers so they can write them over and over with less hassle.
Step-by-step explanation:
give them an example like 2000. move the decimal place to the left 3 places. then multiply the new number --2-- by ten to the power of 3.