Sophia exchanged 1,000 US dollars for the south African currency. the exchange rate was 7.15 rand to $1.00.
1 answer:
1 / 7.15 = 1000 / x......$ 1 to 7.15 rand = $ 1000 to x rand
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Let A unit be a; B unit be b
a + b = 95
b = 95 - a
3a + 5b = 395
3a + 5(95 -a) = 395
3a + 475 - 5a = 395
-2a = -80
a = 40
a + b = 95
40 + b = 95
b = 55
Therefore, a = 40; b = 55.
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The proper equation for midpoints is inside the following photo
Answer:
OK I hear you well
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31.75 as an improper fraction is 127/4. The mixed number fraction is 31 3/4.
