Answer:
3×10^9
Step-by-step explanation:
0.03x=90,000,000
x=90000000/0.03
x=3×10^9
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Sid wrapped 8 gifts.
Look at the equation Sid wrote to caclulate the cost to wrap each gift. (6.80 + 7.35) / 8. 6.80 represents the total paid for wrapping paper. 7.35 represents the total amount paid for ribbon. Knowing that information, using the equation, and knowing who Sid wrapped gifts for, we can infer Sid wrapped gifts for 8 cousins.
Answer:
20000000 + 8000000 +30000
Step-by-step explanation:
Answer:
Stage crewmember's calculation is incorrect
Correct = 1/16x 1/16y
Step-by-step explanation:
Given that:
Dimension of backdrop : 20 feets long ; 16 feets high
Actual dimension of building : 320 feets long ; 256 feets high
The correct scale factor can be obtained thus :
Ratio of backdrop dimension to the actual dimension of building
Length : 20 / 320 = 1 /16
Height : 16 / 256 = 1/16
Hence, stage crewmember's calculation of (1/20x ; 1/20y) is incorrect.
Answer:
It's the second option x = (3y - 11) / 5.
Step-by-step explanation:
3/5 = x+1/y-2
Cross multiplying:
3(y - 2) = 5(x + 1)
3y - 6 = 5x + 5
5x = 3y - 6 - 5
5x = 3y - 11
x = (3y - 11) / 5.
