patriciamelton57
06.10.2019 •
Mathematics
Arectangular shaped flower garden has a length of 5 years and an area of 15 square yards. a neighbor's flower garden is similar and has a length of 7 yards. what is the area of the neighbor's flower garden? round your answer to the nearest whole number.
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Ответ:
I'm guessing that the new width would be proportional to the new length so we need to find that first:
3/5 = x/7 ~ cross multiply
x=4.2 yards
Now find area:
A = 7 x 4.2
= 29.4 square yards
Ответ:
2 + 16x = -7x - 21
Add 7x to both sides.
2 + 23x = -21
Subtract 2 from both sides.
23x = -23
Divide both sides by 23.
x = -1