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2 years ago

What’s the percentage as a decimal

Mathematics

1 answer:

Elenna [48]2 years ago

6 0

Answer:

0.0006

Step-by-step explanation:

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A neon light flashes five times every 10 seconds. Show that the light flashes 43 200 times in one day.

11Alexandr11 [23.1K]

1 day = 24 hours

1 hour = 60 minutes

1 minute = 60 seconds

60 seconds x 60 minutes = 3,600 seconds per hour

3,600 seconds per hour x 24 hours = 86,400 seconds per day.

The light flashes 5 times every 10 seconds:

5 flashes / 10 seconds = 1 flash every 2 seconds

86,400 seconds / 2 seconds = 43,200 flashes per day.

4 0

2 years ago

To estimate the height of a house Katie stood a certain distance from the house and determined that the angle of elevation to th

gizmo_the_mogwai [7]

28492 degrees is the answer

5 0

3 years ago

In the equation y = 2x + 3, if the change in x is 1, the corresponding change in y will be _____.

romanna [79]

Answer:

search it

Step-by-step explanation:

3 0

3 years ago

Write a system of equations to describe the situation below, solve using an augmented matrix, and fill in the blanks.This mornin

Georgia [21]

Answer:

$\begin{gathered} \text{ A tray of club sandwiches cost \$9} \\ A\text{ tray of vegetarian sandwiches cost \$6.} \end{gathered}$

Step-by-step explanation:

Given the information, create the following augmented matrix:

The first order was for 1 tray of club sandwiches, at a cost of $9. The second-order, which cost $69, was for 5 trays of club sandwiches and 4 trays of vegetarian sandwiches.

$\begin{gathered} 5x+4y=69 \\ x=9 \end{gathered}$

Into an augmented matrix:

$\begin{bmatrix}{5} & {4} \\ {\placeholder{⬚}} & {1}\end{bmatrix}\begin{bmatrix}{69} & {} \\ {9} & {}\end{bmatrix}$

Solve.

Let x be the cost of a tray of club sandwiches.

Let y be the cost of a tray of vegetarian sandwiches.

$\begin{gathered} x=9 \\ Substitute\text{ on the first equation} \\ 5(9)+4y=69 \\ 4y=69-45 \\ y=\frac{24}{4} \\ y=6 \end{gathered}$

8 0

1 year ago

Randall is saving money to buy a bicycle. He has $37.80 in his saving account and saves 20% of his paper route earnings each wee

DanielleElmas [232]

Answer:

In 10 weeks he saved: 87.8-37.8= $50

so each week he saves 50/10= $5

Step-by-step explanation:

So every week he earns 5*100 / 20= $25

8 0

2 years ago