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nalin [4]
3 years ago
12

Can someone plz help me with this one problem!!!!

Mathematics
2 answers:
Bess [88]3 years ago
4 0

Answer:

It's 80.

Step-by-step explanation:

Galina-37 [17]3 years ago
3 0

Answer:

80

Step-by-step explanation:

5 × 4 = 20

20 × 4 = 80

80 × 4 = 320

320 × 4 = 1280

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Solve the equation 24 = 13n – 4n +9.<br> n =
Alexxx [7]

Answer:

n=5/3

Step-by-step explanation:

24=13n-4n+9\\24=9n+9\\15=9n\\\\n=15/9

simplified it would be 5/3

(If you wouldn't mind, if this helped you, please give brainliest, I'm trying to get an achievement)

4 0
3 years ago
At a concession stand, five hot dog(s) and two hamburger(s) cost $11.75; two hot dog(s) and five hamburger(s) cost $11.00. Find
serg [7]

Answer:

x:hot dogs

y: hamburger

5x + 2y = 11.75

2x + 5y = 11.00

10x + 4y = 23.50

-10x - 25y = -55.00

-21y = -31.50

y = $1.50 each hamburger

2x + 5(1.50)= 11.00

2x + 7.50 = 11.00

2x = $3.50

x = $1.75 each hot dog

8 0
4 years ago
Assume the resting heart rates for a sample of individuals are normally distributed with a mean of 75 and a standard deviation o
labwork [276]

Answer:

99.8 %

Step-by-step explanation:

μ   =  75         and    σ  =  5

The information about 68-95-99.7  rule is:

μ   ±    0,5σ             68.3 % of all values  will be in the interval

[  μ - 0,5σ  ;  μ  + 0,5σ   ]      [  72.5 : 77,5  ]

μ   ±    1σ                  95 %  of all values  will be in the interval

[  μ - 1σ  ;  μ  +  1σ   ]      [   70  :  80  ]

And:

μ   ±    1,5σ               99.7 %  of all values  will be in the interval

[  μ - 1.5σ  ;  μ  +  1.5σ   ]   [ 67,5  :  82,5  ]

And still 85 is bigger than 82,5 we can conclude that approximately 99.8 % will be smaller than 85 and then "the relative frecuency of rates less than 85 is very high 99.8 %

5 0
3 years ago
You have at most $75 to spend on books and music. You want to spend less than $20 on music and no more than $60 on books. Which
Gemiola [76]

Answer:

60$ on books with 15$ for music, subtraction

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Ughvjkbkmnlk,bh imn hbkvkjm, h jknmbjb
Lelechka [254]

Answer:

im workin gon it can you please mark me as brainliest

Step-by-step explanation:

3 0
3 years ago
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