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3 years ago

Mario worked from 8:25 to 12:45 yesterday.Today he will work 11:20 to 3:10. How many hours did he work in all?

Mathematics

1 answer:

Vesnalui [34]3 years ago

7 0

Answer:

Mario worked from

8:25 to 12:45 yesterday

11:20 to 3:10 today

To find the total time of work

12:45

-8:25

_____

4:20

again

11:20

-3:10

______

8:10

Therefore

4:20 + 8:20 = 12 hours 30 min

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Licemer1 [7]

Answer:

10 hours (I am not positive)

Step-by-step explanation:

We first want to find the volume of pool which is 30 x 18 x 4 = 2160.

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3 years ago

A marketing company had a profit of 5625.14 in January a loss of 4250.35. In February and a profit of 1475.55 in March did the c

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3 years ago

Clarke paid $5 each for three pairs of earrings. The tax rate was 7%. What is the amount Clarke paid?

Mrac [35]

Answer:

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2 years ago

Read 2 more answers

PLEASE HELP! find the inverse matrix

Sauron [17]

Answer:

see explanation

Step-by-step explanation:

The inverse of a matrix A = $\left[\begin{array}{ccc}a&b\\c&d\\\end{array}\right]$ is

$A^{-1}$ = $\frac{1}{ad-bc}$ $\left[\begin{array}{ccc}d&-b\\-c&a\\\end{array}\right]$

If ad - bc = 0 then the matrix has no inverse

A = $\left[\begin{array}{ccc}11&-5\\3&-1\\\end{array}\right]$

ad - bc = (11 × - 1) - (- 5 × 3) = - 11 - (- 15) = - 11 + 15 = 4 , then

$A^{-1}$ = $\frac{1}{4}$ $\left[\begin{array}{ccc}-1&3\\-5&11\\\end{array}\right]$ = $\left[\begin{array}{ccc}-0.25&0.75\\-1.25&2.75\\\end{array}\right]$