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juin [17]
3 years ago
14

I need help asap ( pt 2 )

Mathematics
1 answer:
amid [387]3 years ago
3 0

The first one:

1.1x+1.4y=360;

1.2(x+y)=360;

The second one:

x+y=800;

0.2x+0.04y=800*0.15

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Por favor alguien sabe cuál es. soy un número de 5 dígitos. Mi dígito de las decenas es la suma de mi cientos dígitos y miles de
mixas84 [53]

<span>47184. 
</span>
<span>Así que la suma de los cientos y miles será dos veces el dígito de las unidades . Miles ( 7 ) + cientos ( 1 ) = 8. 8 es dos veces más que el dígito de las unidades ( 4) de los miles de diez dígitos es el mismo que el de un dígito es así, esto hace que los miles a decenas 4 también .
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(No escribo bien en espanol pero te lo traslatide jaja. dame un messaje si no todavia no entiendes) 
5 0
3 years ago
Casey orders 3 pizzas and 2 orders of breadsticks for a total of 30.00. Rachel orders 2 pizzas and 3 orders of breadsticks for 2
barxatty [35]

Answer:

8

Step-by-step explanation:

x=pizza

y= breadsticks

3x+2y=30

2x+3y=25

first we myltiply the top equation with 3 and then w emultiply the lower equation with -2 so it is

9x+6y=90

-4x-6y= -50

now we can add them together and the y contracts

5x=40

now we divide it by 5

x=8

So pizza costs 8

3 0
2 years ago
What matches the expression of 36÷4
IRINA_888 [86]
Are there any multiple choice if not then it would be the inverse operation and that is multiplication so 36 divided by 4 =9 and 9 x 4=36
8 0
3 years ago
Solve for x<br> Solve for x<br> Solve for x<br> Solve for x
spin [16.1K]
82+2x=180
2x=98
x=49
answer is x=49
3 0
3 years ago
Read 2 more answers
Can someone please help me with this.
Doss [256]
F(a)= -3a+2b

Hope this helps!
6 0
2 years ago
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