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Mice21 [21]
3 years ago
5

What is the simplified value of this expression pls help

Mathematics
1 answer:
tester [92]3 years ago
7 0

Answer:

7

Step-by-step explanation:

Remove parentheses.

\frac{-8+4(4.5)}{6.25-8.25} \\

Add −8 and 4.5.

\frac{4(-3.5)}{6.25 - 8.25} \\\\

Subtract 8.25 from 6.25.

\frac{4*-3.5}{-2}

Multiply 4 by −3.5.

\frac{-14}{-2}

Divide −14 by −2.

= 7

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2 years ago
A certain forest covers an area of 2900 km. Suppose that each year this area decreases by 8.5%. What will the area be after 8 ye
Ann [662]

Answer:

1425 square kilometer.

Step-by-step explanation:

2900 - 8.5% = 2653.5

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2221.5765375 - 8.5% = 2032.74253181

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Step-by-step explanation:

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3 years ago
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musickatia [10]
The answer is 10110

===============================================

Explanation:

Divide 22 over 2. Use long division to find the quotient and remainder
22/2 = 11 remainder 0 <<--- this remainder will be used later. Call it A, so A = 0

Now repeat for the value 11, which was the quotient above
11/2 = 5 remainder 1 <<--- this remainder will be used later. Call it B, so B = 1

Repeat again for the quotient we just got
5/2 = 2 remainder 1 <<--- this remainder will be used later. Call it C, so C = 1

Repeat again
2/2 = 1 remainder 0 <<--- this remainder will be used later. Call it D, so D = 0

Repeat again
1/2 = 0 remainder 1 <<--- this remainder will be used later. Call it E, so E = 1

The last quotient above is 0, so we stop here. If we tried to keep going, then we'd get nothing but 0 remainders forever.

The remainders we got above were:
A = 0
B = 1
C = 1
D = 0
E = 1

The idea is to read the remainders in reverse order in which we found. So we start with E and work back to A
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So 22 base 10 = 10110 base 2

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