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2 years ago

Jason purchased three different sizes of candy at the store. The

Mathematics

1 answer:

Ivan2 years ago

4 0

Answer: $5

Step-by-step explanation:

Let the small candy be represented by x.

The medium candy was twice as expensive as the small candy. This will be: = 2×x = 2x

The large candy was $5 more than the medium candy. This will be: = 2x + 5

Since Jason spent a total of $30 on

candy, the cost of the small candy will be:

x + 2x + 2x + 5 = 30

5x + 5 = 30

5x = 30 - 5

5x = 25

x = 25/5

x= 5

The small candy cost $5

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If there are 19 questions and each question has 4 answers, what is the probability she will answer at least one question correct

gregori [183]

Answer:

0.9958

Step-by-step explanation:

P(being correct) = 1/4 = 0.25

Hence, p = 0.25

n = 19

P(x ≥ 1) = p(x = 1) + p(x = 2) +... + p(x = 19)

Using the binomial probability formula :

P(x =x) = nCx * p^x * (1 - p)^(n - x)

However, to save computation time, we could use a calculator :

Using a calculator,

P(x ≥ 1) = 0.99577

P(x ≥ 1) = 0.9958

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2 years ago

Question 3. Solve each equation given below. 5 x - 4=31

harkovskaia [24]

Answer:

x = 7

Step-by-step explanation:

5x-4 = 31

5x = 31+4

5x = 35

x = 7

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2 years ago

Factorise 2x^2 - 9x -5

Nostrana [21]

Answer:

(x-5)(2x+1)

Step-by-step explanation:

Its called google XD

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2 years ago

Draw Conclusions The decimal 0.3 represents What type of number best describes 0.9, which is 3.0.3? Explain

Anon25 [30]

Answer:

The product represent the number $3\times 0.3=0.9$

Step-by-step explanation:

To find : The decimal 0.3 represents What type of number best describes 0.9, which is 3.0.3?

Solution :

0.3 represents $0.3=\frac{3}{10}$

0.9 represents $0.9=\frac{9}{10}$

If we multiply 0.3 by 3 we get 0.9

As, $3\times 0.3=3\times \frac{3}{10}$

$3\times 0.3=\frac{9}{10}$

$3\times 0.3=0.9$

Therefore, The product represent the number $3\times 0.3=0.9$

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2 years ago

Celeste is going to summer camp. The table shows the cost of items she will

TEA [102]

Answer:

4(14.75)
4(8) + 4(4.50) + 4(2.25)

Step-by-step explanation:

Note: there is no table so the answer will be based on assumption

Analyzing the answer options:

4(14.75)

This may be correct as contains 4 as multiplier

48.00) + 4.50 +2.25

Incorrect as no multiplier of 4

4(8) + 4(4.50) + 4(2.25)

This may be correct as contains 4 as multiplier and the sum is same as the first option

48.00 +4.50 +2.25)

Incorrect as no multiplier of 4

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3 years ago