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Umnica [9.8K]
3 years ago
13

Solve each system of linear equations by substitution ​

Mathematics
1 answer:
mariarad [96]3 years ago
5 0

Answer:

x=-6-3y/2

Step-by-step explanation:

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1/4 of the players on every team are girls. Write 3 fractions equivalent to 1/4
Andrew [12]

Answer:

2/8, 3/12 and 4/16

Step-by-step explaination:

All these fractions are equivalent to 1/4 as the numerator is a multiple of 1, the denominator is a multiple of 4, and the numerators are all a quarter of their respective denominators.

6 0
2 years ago
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Lemur [1.5K]

Answer:

You first identify the variable.

5 0
3 years ago
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Un huerto escolar tiene una superficie de 4dam2 500m2 y se requiere dividir en seis parcelas rectangulares de igual area ¿ cuant
vitfil [10]

Answer:

Cada parcela tendrá una extensión de 150 metros cuadrados.

Step-by-step explanation:

De acuerdo con el enunciado el huerto escolar tiene una extensión de 4 decámetros y 500 metros cuadrados.

Tengamos presente que un decámetro es igual a 100 metros cuadrados, entonces el huerto escolar tiene un área total de 900 metros cuadrados. Si dividimos esa área en seis parcelas de igual extensión, tenemos que:

x = \frac{900\,m^{2}}{6}

x = 150\,m^{2}

Cada parcela tendrá una extensión de 150 metros cuadrados.

7 0
3 years ago
What is the probability to get a 5 or an odd number when you roll a die​
8090 [49]

Answer:

50%

Step-by-step explanation:

6 numbers on a die, 3 of them are odd.

3/6=1/2=50%

6 0
3 years ago
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PLEASE HELP WITH MATH!!!!!!! 60 points and brainiest!!!!!
joja [24]
1. x>-2 distribute the three and get 3x+6>0 subtract the 6 to get 3x>-6 then divide by 2 to get -2.
2.x>6 distribute 8 to get 8x+8 and distribute 7 to get 7x+14. Subtract over the 8 to get 8x>7x+6 then subtract over 7x to get x>6
3.distribute the 9 and the 4 to get 9x-27<4x+40 add over the 27 and get 9x<4x+67 subtract over the 4x to get 5x<67 divide by 5 and get x<67/5
4. distribute the 3 and the 2 to get 3x+3 + 2x+4>0  add together the like terms 3x+2x=5x and 3+4=7 to get 5x+7>0 subtract over the seven to get 5x>-7 and then divide by 5 to get x>-7/5                                                                                 5. first add over -7 to get -9x/11<2. after that multiply by 11 to get -9x<22 then divide by -9 (MAKE SURE YOU FLIP THE INEQUALITY SIGN WHEN MULTIPLYING OR DIVIDING BY A NEGATIVE LIKE -9 IN THIS CASE) you get x>-22/9                                                                                                                   6. Add over the 5 to get 3x<9 divide by 3 and get x<3 




5 0
3 years ago
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