400 - 200 = 600.
282 - etc. etc.
Answer: they have
et n = number of nickels
Let d = number of dimes
given:
(1) +n+%2B+d+=+45+
(2) +5n+%2B+10d+=+360+
-------------------
Multiply both sides of (1) by 5
and subtract (1) from (2)
(2) +5n+%2B+10d+=+360+
(1) +-5n+-+5d+=+-225+
+5d+=+135+
+d+=+27+
and, since
(1) +n+%2B+d+=+45+
(1) +n+%2B+27+=+45+
(1) +n+=+45+-+27+
(1) +n+=+18+
She had 18 nickels and 27 dimes
check:
(2) +5%2A18+%2B+10%2A27+=+360+
(2) +90+%2B+270+=+360+
(2) +360+=+360+
Step-by-step explanation:
Hey there!
5(m - 2) + 2w
= 5(8.4 - 2) + 10(1.25)
= 5(8.4) + 5(-2) + 10(1.25)
= 42 - 10 + 10(1.25)
= 32 + 12.50
≈ 32 + 12.5
= 44.50
≈ 44.5
Thus, your answer is: 44.5
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
Answer:
??????
Step-by-step explanation:
I believe that Charlotte bikes 499.2 meters and Mary biked 123.6 meters, so Charlotte would’ve biked 375.6 more meters.
