All categories

3 years ago

How do you multiply whole numbers to decimals? pls help i have a test coming up

Mathematics

1 answer:

STALIN [3.7K]3 years ago

4 0

Example: 11x3.4=37.4

Step-by-step explanation:so you have to align them in a vertical way, once you have done that pretend that the decimal point isn’t there. Once done with multiplying count the spaces to reach the decimal so for the example 11x 3.4=37.4

it’s one space so on 374 point the decimal one point after the 4, for bigger numbers you do the same.

You might be interested in

-4(3-1)+2 simplify

sweet-ann [11.9K]

Answer:-11

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

The probability that a car has a certain factory defect is 825. The probability that a car has a certain factory defect and need

ipn [44]

Answer:

90.91% probability that a car needs an oil change given that it has a certain factory defect

Step-by-step explanation:

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 problem, we have that:

Event A: having a factory defect.

Event B: needing an oil change.

The probability that a car has a certain factory defect is 825.

So $P(A) = 0.825$

The probability that a car has a certain factory defect and needs an oil change is 750.

So $P(A \cap B) = 0.75$

What is the probability that a car needs an oil change given that it has a certain factory defect

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.75}{0.825} = 0.9091$

90.91% probability that a car needs an oil change given that it has a certain factory defect

5 0

4 years ago

A grocery store recently sold a bag of peanuts for $0.76 and a bag of Pikachu's for $3.68 at the end of the day 50 bags of peanu

Setler [38]

Answer:

31 Pikachu bags were sold.

19 peanut bags were sold.

Step-by-step explanation:

Let's set up an equation of the total revenue of the day, where x is the number of Pikachu's sold.

We know that the number of Peanuts sold is 50-x (as the total needs to be 50)

We know that the total revenue is:

Number of Pikachus * Cost per Pikachus + Number of Peanuts * Cost per Peanuts

Using our definitions above:

Total Revenue = x * $3.68 + (50-x) * $0.76

We know that the revenue needs to be $128.52.

$128.52 = x * $3.68 + (50-x) * $0.76

Let's remove the $ signs.

128.52 = x * 3.68 + (50-x) * 0.76

Multiplying both 50 and -x with 0.76, "expanding" the parenthesis.

128.52 = x*3.68 + 50*0.76 - x*0.76

128.52 = x*3.68 + 38 - 0.76*x

Subtracting 38 from both sides

90.52 = 3.68*x - 0.76*x

We can simplify the right side.

90.52 = 2.92*x

We can divide both sides by 2.92:

31 = x

And flip it:

x = 31

So 31 Pikachus were sold (remember we claled that x), and as we know, the number of peanut bags sold is

50-x = 50-31 = 19

31 Pikachu bags were sold.

19 peanut bags were sold.

7 0

3 years ago

Read 2 more answers

How do I become a better math student

loris [4]

Answer:

by continueing to study

Step-by-step explanation:

8 0

3 years ago

Find A and B please help

TiliK225 [7]

Answer: a=124 and b=62

Step-by-step explanation:

5 0

2 years ago

How do you multiply whole numbers to decimals? pls help i have a test coming up​

How do you multiply whole numbers to decimals? pls help i have a test coming up