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Natasha2012 [34]
3 years ago
13

Pllllzzzzz help meeeeee

Mathematics
2 answers:
aniked [119]3 years ago
8 0

Answer:

(-3, -15)

Step-by-step explanation:

that's where the two graphs intersect

atroni [7]3 years ago
7 0

Answer:

B

Step-by-step explanation:

b/c they intercept there

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1
strojnjashka [21]

Answer:

Step-by-step explanation:

3x - 4y = 13 (1)

2x + y = 5 (2)

——————

3x - 4y = 13

4(2x + y = 5) (2) times 4

——————-

3x - 4y = 13

8x + 4y = 20

——————-

11x = 33

x = 33/11

x = 3

Plug x = 3 in (2):

2(3) + y = 5

6 + y = 5

y = 5-6

y = -1

Thus, x = 3 and y = -1

4 0
3 years ago
Which fraction is equivalent to <br> 1/3
Umnica [9.8K]

Answer:

there's many! three examples of equivalent fractions to 1/3 are: 3/9 9/27. and 27/81

Hope that helps!

6 0
3 years ago
Read 2 more answers
Cedric had 2,204 baseball cards that he wanted to sell. He sold them in packages of 4 and charged $2.25 for each package. If he
anzhelika [568]
2,204/4 =551 packages
551x2.25=1,239.75$ is your final answer
3 0
3 years ago
How to solve x+7=3<br> In one step equations
rodikova [14]
<span>Subtract 7 from both sides of the equation. Check: Substitute -4 for x in the original equation. If, after the substitution, the left side equals the right side, your answer is correct. ( -4 ) + 7 = 3 </span>
3 0
3 years ago
Read 2 more answers
Please help confused with half life /compound interest problems
jekas [21]
Half life means only half of matter is left, which means half is decayed/radiated. 
Formula for half life is
t/2 = [(elapsed time)*(log2)]/[log(beginning amount/ending amount)]
1. t/2 = [(10)*(log2)]/[log(100/76.1)] = 25.378 minutes.
 t/2 = [10 * 0.301]/[log 1.314] = [3.01]/[0.1186] = 25.378
2. 53.12 = [(T)*(log2)]/[log(15/4)], on solving we get, T = 101.29 days
 53.12 = [T * 0.301]/[log 3.75] = [0.301 * T]/[0.574],
 T = [53.12 * 0.574]/[0.301] = [30.49]/[0.301] = 101.29<span />
6 0
3 years ago
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