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MA_775_DIABLO [31]
3 years ago
6

Please help if you can, it's due soon :) ​

Mathematics
1 answer:
mel-nik [20]3 years ago
8 0

Answer:

<SDQ

Step-by-step explanation:

Eg if a = b, b = c, then a = c

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A bag contains 5 blue coins and 7 red coins. A coin is removed at random and replaced by three of the
patriot [66]

Answer:

8              4

-                -

18             9

Step-by-step explanation:

sorry i dont know how to put a fraction but that is the answer because  after the red coin is removed and the 3 blue coins are added  there will be 9-1=8 red coins and 7+3=10 blue coins for a total of 8+10 coins the probability of then choosing  a red coin is then the answer  put up there tell me if that helped please!

4 0
3 years ago
Grovell works at Walmart. He earns $12 per hour. The store offers him a raise of 5% increase per hour.
DerKrebs [107]

Answer:

$ 12.6 / h

Step-by-step explanation:

5% of 12 = 0.05 * 12 = 0.6

Now adding it to the amount he makes, since it is a raise:

0.6 + 12 = 12.6 $ / h

Another (and faster) way to calculate it:

1.05 * 12 = 12.6

4 0
3 years ago
Trey pourd 5 1/2 cups of birdseed into an empty bird feeder. The bird feeder is now 3/4 full. How much more for it to be full.
MatroZZZ [7]

Answer:

\frac{11}{6}

Step-by-step explanation:

5 1/2 is 75% so we divide by three get 25%

5 1/2 ÷ 3 = 11/6

4 0
3 years ago
Read 2 more answers
La un concurs de matematica se dau 40 de probleme. Pentr fiecare raspuns corect se acorda 7 puncte, iar pentru fiecare raspuns g
Ratling [72]

Answer:

a primit 36 ​​corect ane 4 în mod greșit

Step-by-step explanation:

În această întrebare, ne preocupăm să calculăm numărul de răspunsuri corecte și de răspunsuri greșite pe care elevul le-a dat.

În primul rând, începem prin atribuirea de variabile.

Numărul de răspunsuri corecte să fie x în timp ce numărul de răspunsuri greșite să fie y

Deoarece există 40 de probleme în total, aceasta înseamnă că adăugarea ambelor este egală cu 40 matematic,

x + y = 40. ••• (i)

Acum să trecem la partea complicată. Fiecare răspuns corect = +7. Răspunsul corect total este astfel + 7x Fiecare răspuns greșit este = -5. Răspunsul total greșit este astfel -5y Punct total marcat = 232 Aceasta

înseamnă că; 7x -5y = 232 ••••••••• (ii)

De la i, putem spune y = 40 -x să punem acest lucru în ecuație

ii 7x -5 (40-x) = 232

7x - 200 + 5x = 232

12x = 232 + 200 12x = 432 x = 432/12 x = 36 Deoarece y = 40 - x y = 40 - 36 y = 4

6 0
3 years ago
Y varies directly as x times x. If y=36 when x=3, find y when x=1/2
faltersainse [42]

Answer:

6

Step-by-step explanation:

from 3 to 1/2, you divide by 6. That means you have to divide 36 (the y) by 6, too. 36/6 is 6.

4 0
4 years ago
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