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3 years ago

A jar contains 2 caramels, 7 mints and 16

Mathematics

2 answers:

marishachu [46]3 years ago

7 0

Answer:

Answer A: 16/25

Answer B: 2/24

Step-by-step explanation:

There are 16 dark chocolates, so the probability of choosing one is 16/25. the total number of candies is 25, so when one is eaten, the number changes to 24. There are 2 caramels, so the number is 2/24.

nikitadnepr [17]3 years ago

4 0

The answerrrrrr is: 16:25 ratio wise

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If 30% of a number is 42, what would 50% of that number be?

Rufina [12.5K]

Make a variable for “number”
Number=X
0.3x=42
X=140
50% is the same as 1/2
So, half of 140 is: 70

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4 years ago

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Find the indicated side of the triangle

yaroslaw [1]

Answer:

If you're trying to figure out what x would be, I'm pretty sure the answer is 6 because it's equal with the other side labeled 6 and there are 2 45° angles

Step-by-step explanation:

Sorry if this isn't the answer you're looking for :/

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3 years ago

The rate constant for this first‑order reaction is 0.740 s − 1 0.740 s−1 at 400 ∘ C. 400 ∘C. A ⟶ products A⟶products How long, i

sesenic [268]

Answer:

1.668 S

Step-by-step explanation:

We are given that

$A\rightarrow$ Product

For first order reaction,

$t=\frac{1}{k}ln\frac{A_0}{A}$

$t=\frac{2.303}{k}log\frac{A_0}{A}$

Rate constant=k= $0.740s^{-1}$

Temperature= $T=400^{\circ}$

We have to find the time taken by the reaction when concentration of A to decrease from 0.790 M to 0.230 M.

$A_0=0.79 M$

$A=0.230$

Substitute the values then we get

$t=\frac{2.303}{0.740}log\frac{0.79}{0.23}$

$t=1.668 s$

Hence, it would take 1.668 s for the concentration of A to decrease from 0.790 M to 0.230 M.

4 0

4 years ago

Two forces, one of 45 pounds and the other 50 pounds, act on the same object. The angle between the forces is 33°. Find the magn

bearhunter [10]

Answer:

The magnitude of the resultant force is: 27.40 pounds

Step-by-step explanation:

Given

$F_1 = 45$

$F_2 = 50$

$\theta = 33$

Required

The magnitude of the resultant vector

To do this, we apply cosine formula

$R^2 = F_1^2 + F_2^2 - 2 * F_1 * F_2 * \cos(\theta)$

This gives:

$R^2 = 45^2 + 50^2 - 2 * 45 * 50 * \cos(33)$

$R^2 = 2025+ 2500 - 4500* 0.8387$

$R^2 = 2025+ 2500 - 3774.15$

$R^2 = 750.85$

Take square roots of both sides

$R = \sqrt{750.85\\$

$R = 27.40$

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4 years ago

Which value of x is a solution of the inequality?

Levart [38]

Hello, and thank you for posting your question here on brainly.

A correct answer to this can be B. x = 3 look at the work provided below.

Subtract 5 from both sides, to remove it.

3x + 5 ≤ 14 ==> 3x ≤ 9

Divide both sides by 3, to remove it.

3x ≤ 9 ===> x ≤ 9/3

Solve 9/3.

x ≤ 9/3 ===> x ≤ 3

Hope this helps! ☺♥

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3 years ago

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