Five times a number d

Mathematics

1 answer:

tekilochka [14]2 years ago

6 0

D • 5
Unless I misread this.

You might be interested in

A rug is shaped like a rectangle whose perimeter is 176 ft. The length is 7 times as long as the width. Find the length and the

Step2247 [10]

P = 2l + 2w; unde P = the perimeter of rug; l = the length; w = the width;
176 = 2l + 2w;
Then, l = 7w ;
_______________
176 = 2*7w + 2w;

176 = 14w + 2w;

176 = 16w;

w = 176÷16;

w = 11ft;

l = 7 * 11;

l = 77ft;

8 0

2 years ago

Find two numbers whose product is 110, and whose sum is 21.

shutvik [7]

Answer:

10 and 11

$10 \times 11 = 110$

$10 + 11 = 21$

6 0

2 years ago

A rope is 225 centimeters long.

vekshin1

Rope = 225 cm

Needed rope = 11/2m = (11/2) × 100 cm = 550cm

So, rope needed to be cut

= 550cm - 225cm

= 225cm

=225/100m

=2.25 m

3 0

2 years ago

ATCs are required to undergo periodic random drug testing.

aleksandr82 [10.1K]

Answer:

The responsess to the given question can be defined as follows:

Step-by-step explanation:

$P(medication\ used) = 0.007 \\\\P( drug \not\ used ) = 1 - 0.007 = 0.993\\\\P(test\ positive | medication \ used) = 0.96 \\\\ P(test \ negative | medication \ used) = 1 - 0.96 = 0.04\\\\$

$P(Point | Non-used\ medication )=0.93\\\\ P(Point |No\ medication ) = 1 - 0.93 = 0.07$

As per the given info we draw the tree diagram which is defined in the attachment file.

$P ( test \ is\ positive ) = P( medication \ used ) \times P( Test \ positive | medication \ used ) + P( medication not \ used ) \times P( Test\ positive | medication \ not \ used )$

$= ( 0.007 \times 0.96 ) + ( 0.993\times 0.07 )\\\\= 0.0762$

$P( medication \ used | test\ positive )= \frac{\textup{P( medication used ) *P( Test positive given medication used )}}{\textup{P( medication used )}}$