Answer:
b. – 0.4(x + 1.6) = 1.6
Step-by-step explanation:
Answer: 1 = 8 cups because 2 x 4 = 8.
2. 35... 7 x 10 = 70, 70 / 2 = 35
1
3. 20.53 + 1.55 + 0.02.. line up decimals!
<u> + 1.55</u>
22.08
4. Mean is average.
so add up all the numbers and divide by the amount of numbers you added
18+9 = 27, 27 + 15 = 42, 42 + 11 = 53, 53 + 13 = 66, 66 + 15 = 81.
81 divided by 6 = 13.5 or 13 1/2.
5. c = 5b
b=55
c = 5 x 55
5 x 55 = 275.
c = 275.
<u>NEXT PAGE</u>
<u></u>
1. 48, 6 x 8 = 48.
2. 6, 4 x 3 = 12, 12 / 2 = 6
1
3. 9. 12 + 5.78 + 6.01
5.78
<u>+ 6.01</u>
20.91
4. 36 + 42 + 66 + 54 + 23 = 221, 221 / 5 = 44.2 or 44 1/5
5. t = 20c c = 21
t = 20 x 21 = 420
t = 420.
The resulting equation if Becca isolated x² in the first equation and then substituted it into the second equation is (9-y²) / 25 - y²/36 = 1
<h3>Equation</h3>
x² + y² = 9
x²/25 - y²/36 = 1
From (1)
x² = 9 - y²
substitute x² = 9 - y² into (2)
x²/25 - y²/36 = 1
(9-y²) / 25 - y²/36 = 1
Therefore, the resulting equation is option C; (9-y²) / 25 - y²/36 = 1
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Eighteen and
fifty-two thousandths
