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aliina [53]
3 years ago
7

What is the value of the expression -13 - (-41)?​

Mathematics
1 answer:
Luda [366]3 years ago
8 0

Answer:

28

Step-by-step explanation:

Two negatives make a positive. So instead of subtracting a negative number, you instead just add -13 + 41 because the 2 negatives made a positive. And the answer to that is 28.

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Can somebody please help me
seraphim [82]

Answer:

3) 36

2) 55

Step-by-step explanation:

We have to place the numbers in order from least to greatest.

3) 23, 26, 26, 32, 32, 36, 50, 52, 52, 52, 59,

4) 40, 42, 49, 54, 62, 67, 67, 70, 95

The more is the the difference between the lowest and highest values.

95-40=55

6 0
3 years ago
Are the set of all square numbers under 50 and the set of all triangular numbers that are less than 50 disjoint?
Alina [70]

Answer:

No, the two sets are not disjoint.

Step-by-step explanation:

Set of triangular numbers to 50: 1, 3, 6, 10, 15, 21, 28, 36, 45

Set of square numbers to 50: 1, 4, 9, 16, 25, 36, 49

They have 1 and 36 in common, so they are not disjoint, or in other words, they have some of the same numbers.

7 0
4 years ago
Its about efficiency in systems
Julli [10]

.......................

3 0
3 years ago
Lloyd has a fish tank that is 8 inches high, 14 inches long, and 6 inches wide. A fish tank has a length of 14 inches, height of
julia-pushkina [17]

Answer:

Its <u><em>A</em></u>

Step-by-step explanation:

8 0
4 years ago
John took all his money from his savings account. He spent ​$110 on a radio and 4/11 of what was left on presents for his friend
svp [43]

Answer:

$1210

Step-by-step explanation:

Let x be total amount

First John spent $110 on a radio and 4/11 of what was left on presents for his friends so he was left with

\frac{7}{11}(x-110)=\frac{7}{11}x-70

Then he put 2/5 of his remaining money into a checking account

\frac{3}{5}\left(\frac{7}{11}x-70\right)

Rest he donated to charity

420=\frac{3}{5}\left(\frac{7}{11}x-70\right)\\\Rightarrow \left(\frac{7}{11}x-70\right)=\frac{2100}{3}\\\Rightarrow \frac{7}{11}x-70=700\\\Rightarrow \frac{7}{11}x=770\\\Rightarrow x=1210

Hence total amount of money John originally had was $1210

8 0
3 years ago
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