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tensa zangetsu [6.8K]
3 years ago
5

Help pls wit algebra 2

Mathematics
1 answer:
NISA [10]3 years ago
5 0

Answer:

C

Step-by-step explanation:

If R_A=3R_B, T_A+T_B=12, then

R_A=3R_B\\ \\T_A=12-T_B

Substitute them into the equation R_AT_A=360:

3R_B\cdot (12-T_B)=360\\ \\36R_B-3R_BT_B=360\\ \\12R_B-R_BT_B=120

Given R_BT_B=60, then

12R_B-60=120\\ \\12R_B=120+60\\ \\12R_B=180\\ \\R_B=15\\ \\15\cdot T_B=60\Rightarrow T_B=\dfrac{60}{15}=4\\ \\T_A=12-T_B=12-4=8\\ \\R_A\cdot 8=360\Rightarrow R_A=\dfrac{360}{8}=45

Hence,

R_A-R_B+T_A-T_B=45-15+8-4=30+4=34

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Answer:

18 rubber band bracelets

Step-by-step explanation:

1 hour = 4 bracelets

4.5 hours = ?

4.5 hours/× 4 bracelets

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1 hour/

4.5×4 bracelets = 18 bracelets

In an hour Jessica makes four bracelets and in 4.5hours she makes how many bracelets ,we don't know , obviously in 4.5hours she would make more so if more less will divide.

so 4.5hours over 1hour times 4 bracelets. so hour will cancel hour and now 4.5 times 4 bracelets is equal to 18 bracelets

4 0
3 years ago
Read 2 more answers
A pile of newspaper was 17 3/4 inches high. Each consecutive week for the next 5 weeks the height of pile increase by 8 7/12 inc
Murljashka [212]

Answer: the height in inches, of the pile after 3 weeks is 34 11/12 inches

Step-by-step explanation:

Each consecutive week for the next 5 weeks the height of pile increase by 8 7/12 inches. Converting 8 7/12 inches to improper fraction, it becomes 103/12 inches. The height is increasing in an arithmetic progression. The formula for determining the nth term of an arithmetic sequence is expressed as

Tn = a + (n - 1)d

Where

a represents the first term of the sequence.

d represents the common difference.

n represents the number of terms in the sequence.

From the information given,

a = 17 3/4= 71/4 inches

d = 103/12 inches

n = 3 weeks

the height in inches, of the pile after 3 weeks, T3. Therefore,

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T3 = 71/4 + 2 × 103/12 = 71/4 + 103/6

T3 = 419/12 inches = 34 11/12 inches

7 0
3 years ago
M=2*2*3*5*5 and N=2*2*2*3*3*7 find the largest number that divides exactly M and N​
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Answer:

6

Step-by-step explanation:

M=2*2*3*5*5=300

N=2*2*2*3*3*7=504

Common factors between the two numbers are 2 and 3

The GCF(greatest common factor):

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To see if it is true:

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504/6 = 84

6 is the answer to the question.

6 0
4 years ago
The shaded region is defined by an angle measuring 3π/ 2 radian. The area of the shaded region is 21.206 square inches. Find the
PSYCHO15rus [73]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Solve for n:<br> 3(2−8n)=3n+6<br><br> Select one:<br><br> -15<br><br> 5<br><br> -5<br><br> 0
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