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Lana71 [14]
3 years ago
12

Sixteen added to a number is equal to forty. Find the number.

Mathematics
1 answer:
FinnZ [79.3K]3 years ago
6 0

Answer:

The number is 24

Step-by-step explanation:

Let x = number

Add 16 to the number

x+16

Is equal to 40

x+16 = 40

Subtract 16 from each side

x+16-16 = 40-16

x = 24

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The graph of 3x - 2y = 6 does not pass through (4, -3) (4/3, -1) (-2, -6)
german

Answer:

(4,-3)

Step-by-step explanation:

If the line passes through a point, the coordinates of the point will verify the equation of the line.

So, let's see if each of the coordinates verifies the equation 3x - 2y = 6

A. (4,-3) means x=4 and y = -3

so 3x - 2y  becomes 3(4) - 2(-3) = 12 - -6 = 12 + 6 = 18

B. (4/3, -1) means x = 4/3 and y = -1

so 3x - 2y becomes 3(4/3) - 2(-1) = 4 - -2 = 4 + 2 = 6

C. (-2,-6) means x= -2 and y = -6

so 3x - 2y becomes 3(-2) - 2(-6) = -6 - -12 = -6 + 12 = 6

Verified that the line passes by the last two points but not the first one.

7 0
4 years ago
According to a study in a medical journal, 202 of a sample of 5,990 middle-aged men had developed diabetes. It also found that m
tekilochka [14]

Answer:

0.0588 = 5.88% probability that a middle-aged man with diabetes is very active

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

P(B|A) = \frac{P(A \cap B)}{P(A)}

In which

P(B|A) is the probability of event B happening, given that A happened.

P(A \cap B) is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Has diabetes.

Event B: Is very active.

Probability of having diabetes:

To find this probability, we take in consideration that:

It also found that men who were very active (burning about 3,500 calories daily) were a fourth as likely to develop diabetes compared with men who were sedentary. Assume that one-fifth of all middle-aged men are very active, and the rest are classified as sedentary.

So the probability of developing diabetes is:

x of 4/5 = x of 0.8(not active)

x/4 = 0.25x of 1/5 = 0.2(very active). So

P(A) = 0.8x + 0.25*0.2x = 0.85x

Probability of developing diabetes while being very active:

0.25x of 0.2. So

P(A \cap B) = 0.25x*0.2 = 0.05x

What is the probability that a middle-aged man with diabetes is very active?

P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.05x}{0.85x} = \frac{0.05}{0.85} = 0.0588

0.0588 = 5.88% probability that a middle-aged man with diabetes is very active

4 0
3 years ago
PLS PLS PLSSSSSSSSSSS
UNO [17]

Answer:

20%decrease? id.k if its decrease or increase but its 20%

Step-by-step explanation:

8 0
3 years ago
3 is an element of the rational number (True or False)
mel-nik [20]
True cause 3 is and odd number
6 0
3 years ago
Find the Total Surface Area and the Volume of these shapes:
fiasKO [112]

Answer:

6156

Step-by-step explanation:

formula is TSA=2LW+2LH+2HW

7 0
3 years ago
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