<span>This is a conversion problem. You are given one meter of yellow ribbon
and 28 centimeters of blue ribbon. You are required to find for the number of
centimeters of ribbon she needs. Note that there are 100 centimeters in one
meter. So you have to convert the one meter of yellow ribbon into 100
centimeters of yellow ribbon. Then add the ribbons, 100 plus 28 equals 128
centimeters of ribbon. So Audrey needs 128 centimeters of ribbon all in all.</span>
1 is 39. J don’t know about 2 and 3 though:(
9514 1404 393
Answer:
x = 4
Step-by-step explanation:
The parallel lines divide the sides proportionally, so ratios of corresponding sides are the same.
(x +5)/15 = (5x +1)/35
Multiplying by 105, we have ...
7(x +5) = 3(5x +1)
7x +35 = 15x +3 . . . . . eliminate parentheses
32 = 8x . . . . . . . . . subtract 7x+3 from both sides
4 = x . . . . . . . . divide by 8
Step-by-step explanation:
(4s + 2) × (5s² + 10s +3)
we know immediately the first and the last term of the result, because there is only one operation to build them :
20s³ and 6.
so, the first answer option is already eliminated.
let's multiply
4s×5s² + 4s×10s + 4×3s + 10s² + 20s + 6
20s³ + 40s² + 12s + 10s² + 20s + 6
20s³ + 50s² + 32s + 6
so, the last answer option is correct.
