Answer:
7x+2.8y
Step-by-step explanation:
Respuesta:
dieciséis ;
10/49;
459/2450;
10.2857
Explicación paso a paso:
Resultado de multiplicar lo siguiente:
a) 8 x 8/4 = (8 * 8) / 4 = 64/4 = 16
b) 5/7 x 2/7 = (5 * 2) / (7 * 7) = 10/49
c) 51/35 x 9/70 = (51 * 9) / (35 * 70) = 459/2450
d) 24 x 3/7 = (24 * 3) / 7 = 72/7 = 10,2857
First create a ratio:
The sandwich cost 3.5 more than the drink therefore the ratio is 3.5:1
Then add the two sides of the ratio together to get the total parts of the ratio
3.5+1 = 4.5
Now that we know the total parts of the ratio we can solve for one part by dividing the total cost $9.90 by the total parts of the ratio 4.5+
$9.90/4.5 = 2.20
Since we know that each part of the ratio is 2.20 we multiply both sides of the ratio by 2.20
3.5 *2.20 = 7.70
1 * 2.20 = 2.20
Therefore the answer is B
2/12 To find anything equivelent, just multiply the bottom and top numbers by the same number