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4 years ago

5

Find the value of x.

2 answers:

Wewaii [24]4 years ago

7 0

Answer:

prob 27

Step-by-step explanation:

kondaur [170]4 years ago

7 0

The answer is most likely 27

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Write or draw to explain a way to find each sum: 6+7, 8+4, 2+9

storchak [24]

Draw six dots then a plus sign then draw seven dots and the count them and put an equal sign and however many dots. Doe the same with the other numbers

6 0

3 years ago

Read 2 more answers

Which matrix multiplication is defined ?

eimsori [14]

Answer:

A. CB

Step-by-step explanation:

3 x 2 (C is a 3 by 2) matrix can be multiplied to a 2 x 2 (B is a 2 by 2) matrix since C has 2 columns that are equal to the number of rows in the second matrix B.

A way of checking if two matrices can be multiplied is to first check the number of columns the first matrix contains and then check the number of rows that the second matrix contains.

If the number of columns in the first matrix equal the number of rows in the second matrix then that means it is possible to multiply these matrices.

7 0

3 years ago

A bucket contains 40 red balls, 25 black balls, and 35 white balls. Two balls are drawn at random. What is the probability that

Lyrx [107]

Answer:

$Probability = \frac{1}{5}$ or $Probability = 0.2$

Step-by-step explanation:

Given

$Black = 25$

$White = 35$

$Red = 40$

Required

Determine the probability of selecting Black and Red

First, we need to calculate the number of red and black balls

The probability is calculated as thus:

$Probability = P(Black\ and \ Red) \ or\ P(Red\ and \ Black)$

Convert to mathematical expressions

$Probability = [P(Black) *P(Red)] + [P(Red) *P(Black)]$

Solve for each probaility;

$P(Black) = \frac{Black}{Total} = \frac{25}{100}$

$P(Red) = \frac{Red}{Total} = \frac{40}{100}$

So, we have:

$Probability = [P(Black) *P(Red)] + [P(Red) *P(Black)]$ $Probability = [\frac{25}{100} *\frac{40}{100}] + [\frac{40}{100} *\frac{25}{100}]$

$Probability = [\frac{1000}{10000}] + [\frac{1000}{10000}]$

$Probability = [\frac{1}{10}] + [\frac{1}{10}]$

$Probability = \frac{1+1}{10}$

$Probability = \frac{2}{10}$

$Probability = \frac{1}{5}$

or

$Probability = 0.2$

7 0

4 years ago

Marcy bought a total of 20 years books and CDs during a yard sale for a total of $54.50 cents. If books cost $1.50 each and CDs

Olenka [21]

Answer:

x + y = 20

1.5x + 5y = 54.50

Solve the equations and get: x = 13 ∧ y = 7

Marcy bought 13 books and 7 CDs.

6 0

4 years ago

13. Jake earns 15% commission on the total amount he sells. If he sells $545 worth of items, how much commission

Shtirlitz [24]

Answer:

Option D - $81.75

Step-by-step explanation:

Given : Jake earns 15% commission on the total amount he sells. If he sells $545 worth of items.

To find : How much commission does Jake earn?

Solution :

Using the commission formula,

$\text{Commission}=\text{Sales}\times \text{Percentage}$

$\text{Commission}=\$545\times 15\%$

$\text{Commission}=545\times \frac{15}{100}$

$\text{Commission}=81.75$

Therefore, commission does Jake earn is $81.75.

So, option D is correct.

5 0

3 years ago