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3 years ago

A reaction occurs when solid X is placed into solution Y. As a result, the temperature of the new solution increases by 3°C. The

Mathematics

1 answer:

dexar [7]3 years ago

8 0

Answer:

A. It increased the number of molecular collisions.

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Solve 28 - K _> 7(K - 4)

Evgen [1.6K]

Answer:

Solving the inequality $28-K\geq 7(K-4)$ , we get $\mathbf{K\leq 7}$

Step-by-step explanation:

We need to solve the inequality $28-K\geq 7(K-4)$

Using the BODMAS rule, first we will solve the bracket:

$28-K\geq 7(K-4)\\28-K\geq 7K-28$

Now, we will subtract 28 from both sides

$28-K-28\geq 7K-28-28\\-K\geq 7K-56$

Subtracting -7k on both sides

$-K-7K\geq 7K-56-7K\\-8k\geq -56$

Finally, divide both sides by -8 and inverse the inequality, as we are dividing with a minus digit.

$\frac{-8K}{-8}\leq \frac{-56}{-8}\\K\leq 7$

So, solving the inequality $28-K\geq 7(K-4)$ we get $\mathbf{K\leq 7}$

7 0

3 years ago

Multiply. 7⋅3/4 Enter your answer as an improper fraction, in simplified form.

love history [14]

Answer:

21/4

Step-by-step explanation:

Multiply 7 and 3/4 to get 5.25 which is equivalent to 5 1/4

5 1/4 in an improper fraction is 21/4

8 0

3 years ago

Read 2 more answers

X -5 -3 4 1 -1 -2 0 2 3 -4

Eduardwww [97]

Answer:

The answer is actually A) -8.53

Step-by-step explanation:

The line of best fit has equation y = 2.1x - 0.55, so plugging in x = -3.8 yields -8.53 for y. I just did my USATestprep and this was the answer.

3 0

3 years ago

PLS HELP I WILL MARK BRAINLIST

storchak [24]

It’s d

Because…
A= 77% which is equivalent to .77, which is less than 1

B= 10/8 because it is a little more than one

And by looking at the line you can see how C and D are marked correctly because both of them are over 2, and D is a little bigger than C

7 0

3 years ago

500,00 in expand form

Julli [10]

50000+000+00+0 is the expand form

3 0

3 years ago