2 years ago

Which number replaces the box to make this a true number sentence? 4 × (8 – 5) = (4 × 8) – ( × 5) A. 4 B. 5 C. 12 D. 32

1 answer:

3 0

The answer is A: 4. This is easy once you know the order of operations, aka PEMDAS. Parentheses, exponents, multiplication/division, and addition/subtraction.

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Someone help me with these 3 problems!!!! Due tomorrow!!!

Neporo4naja [7]

Answer:

3. x $\leq$ -1

5. n $\geq$ 6

7. n $>$ 11

Step-by-step explanation:

3. -7+x $\geq$ -8 5. n-2 $\leq$ 4 7. -18+n-7

+7 +7 +2 +2 +18 +18

x $\leq$ -1 n $\geq$ 6 n $>$ 11

6 0

1 year ago

What is the mean of this table

suter [353]

Answer:

The mean is 77.8125

Step-by-step explanation:

The mean is the average of the numbers. It is very easy to calculate and get. All you have to do is add up all the numbers and divide it by how many numbers there are.

80 + 90 + 81 + 86 + 100 + 77 + 75 + 96 + 65 + 87 + 58 + 80 + 36 + 73 + 70 + 91 = 1245

$\frac{1245}{16} = 77.8125$