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borishaifa [10]

3 years ago

13

Marc eats an egg sandwich for breakfast and a big burger for lunch every day. The egg sandwich has 250 calories. If Marc has 5,2

50 calories for breakfast and lunch for the week in total, how many calories are in one big burger?

1 answer:

Svetach [21]3 years ago

7 0

Answer: 5,000 calories

Step-by-step explanation:

Subtract both

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What is the answer to this math problem 4x-3=-x-8

dimulka [17.4K]

Answer:

x = -

Step-by-step explanation:

4x - 3 = -x - 8

<=> 4x + x = -8 + 3

<=> 5x = -5

<=> x = -

5 0

4 years ago

On each of three consecutive days the National Weather Service announces that there is a 50-50 chance of rain. Assuming that the

kvasek [131]

Answer:

1. 50%

Step-by-step explanation:

For each day, there are only two possible outcomes. Either it does rain, or it does not, so we use the binomial probability distribution to solve this problem.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinatios of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

In this problem we have that:

$n = 3, p = 0.5$

We want to find

NNN + RNN + NRN + NNR

This is

$P(X \leq 1) = P(X = 0) + P(X = 1)$

So

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 0) = C_{3,0}.(0.5)^{0}.(0.5)^{3} = 0.125$

$P(X = 1) = C_{3,1}.(0.5)^{1}.(0.5)^{2} = 0.375/tex][tex]P(X \leq 1) = P(X = 0) + P(X = 1) = 0.125 + 0.375 = 0.5$

The correct answer is:

1. 50%

3 0

4 years ago

Suppose that Sin(θ)=5/13 and cos(θ)=-12/13. Find the value of tan(θ), cot (θ), CSC (θ), and sec (θ). Find the value of tan(2θ)

horrorfan [7]

Answer:

Because θ lies in quadrant II, 2θ must lie in quadrant IV. This means the tangent of 2θ is negative.

The adjacent side to θ is 7 because √(25²-24²)=7, so tanθ=7/24.

The double angle formula for tangent is tan 2θ = (2 tan θ) / (1 − tan² θ).

Substituting the value for tanθ in and keeping in mind that this is in quadrant IV, we get tan 2θ = -(2(7/24)/(1-(7/24)²)).

Simplified, this becomes tan 2θ = -336/527.

Therefore, the answer is C. -336/527.

5 0

3 years ago

1 2/12 - 2/12 - 1/12=

aleksley [76]

Answer:

11/12

Step-by-step explanation:

1 2/12 = 14/12

14/12 - 2/12 - 1/12

since they all have 12, it doesn't matter until the end

14 - 2 = 12 - 1 = 11

put the /12 behind the 11 and you have an answer

7 0

3 years ago

A medical plan requires a patient to pay a $25.00 copay plus 20% of all charges incurred for a medical procedure. If the average

natka813 [3]

It is stated that the total bill the patient would only pay would be the $25 plus 20% of the original bill. Therefore this would mean that:

<span>25 + 0.2 * X = 200 ---> 1</span>

<span>25 + 0.2 * X = 800 ---> 2</span>

Where X represents the original bill.

Calculating for X in equation 1:

25 + 0.2 * X = 200

0.2 * X = 175

X = 875

Calculating for X in equation 2:

25 + 0.2 * X = 800

0.2 * X = 775

X = 3875

Therefore the original bill ranges from $875 to $3875. The equality equation would be:

<span>$875 ≥ X ≥ $3875</span>

5 0

4 years ago