Estimate the sum of 487 and 310
2 answers:
Answer:
Sum of 487 would be 490 if rounded to the next whole number and 500 if rounded to the whole number.
So 490+300 = 790 OR 500+300=800
<u>Hope that was helpful.Thank you!!!</u>
487 + 310 ≈ 500 + 300 ≈ 800
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Answer:
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Step-by-step explanation:
Answer + explaination
p=2*(L+l)=46
L+l=46:2
L+l=23
(L+l)^2=529
(L^2+l^2)+2l*L=529
D= V L^2+l^2= 17
L^2+l^2=289
so 289+2l*L=529
2l*L=529-289=240
l*L=240:2
A=120
