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brilliants [131]
2 years ago
9

James saw that the elevator started on floor 6 and five seconds later was on floor -1. What was the rate of change?

Mathematics
1 answer:
Margarita [4]2 years ago
8 0

Answer:

7/5 floors per second

Step-by-step explanation:

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12% would be bigger because it is a whole number other then the fraction.
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3 years ago
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What is the value of the expression shown right next to it -7 3/4 + 3 1/2
zubka84 [21]

Answer: -4\frac{1}{4}

<u>Step 1</u>

<u></u>-\frac{31}{4} + 3\frac{1}{2}<u></u>

<u></u>

<u>Step 2</u>

<u></u>-31/4+7/2<u></u>

Answer: -17/4

<u>Divide</u>

-17/4=-4.25

-4.25=-4\frac{1}{4}

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3 years ago
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Use the properties of operations to determine if each pair of expressions is equivalent
SIZIF [17.4K]

Using the properties of operations the given pair of expressions are not equivalent

<u>Solution:</u>

Given that, we have to use the properties of operations to determine if each pair of expressions is equivalent

<em><u>And the two expressions are:</u></em>

\frac{1}{2}(4-2 x) \text { and } 2-2 x

Now, we know that, there are four (4) basic properties of operations:

<em>Commutative, Associative, Distributive and Identity. These properties only apply to the operations of addition and multiplication.</em>

So, if we observe we can apply distributive property on 1st expression

The distributive property of multiplication states that when a number is multiplied by the sum of two numbers, the first number can be distributed to both of those numbers and multiplied by each of them separately, then adding the two products together for the same result as multiplying the first number by the sum.

\begin{array}{l}{\frac{1}{2}(4-2 x) \rightarrow \frac{1}{2}(4)-\frac{1}{2}(2 x)} \\\\ {\rightarrow 2-x}\end{array}

Here the resulting expression is 2 – x and it is not equivalent to 2 – 2x

Hence, the given two expressions are not equal.

3 0
3 years ago
A total of 525 records of a hospital were reviewed and 175 of the patients had a heart problem, 150 a respiratory problem, 125 s
Tcecarenko [31]

Answer:

a

Step-by-step explanation:

7 0
3 years ago
Lena buys 3 cans of soft drinks and 5 sandwiches for a picnic . Patrick buys 9 cans of soft drinks and 10 sandwiches for the sam
iren2701 [21]

Answer:

for Lena

C = 3x   C + 5x

for Patrick

C = 9x  C = 10x

for total  C = 12x + 15x

Step-by-step explanation:

3 0
3 years ago
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