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Olenka [21]
3 years ago
13

After finishing his shift, a security guard wrote 6.75 under "hours worked" on his time card. how long did he work ?

Mathematics
1 answer:
Wewaii [24]3 years ago
5 0
He worked a total of 405 minutes. Hope this helps!

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Use the commutative law of MULTIPLICATION to write an equivalent expression.<br><br> 9(x+5)
Arturiano [62]
The commutative property of multiplication is ab=ba
so
9(x+5)=(x+5)9
(note, some people on this site like to write x2 for x² but that's not how you math correctly., (x+5)9 doesn't mean (x+5)⁹, it means (x+5) times 9)
3 0
3 years ago
PLEASE HELP OR ELSE MOM WILL BE REALLY MAD!!!!! Two trains, one going from Boston to New York and the other going from New York
Rufina [12.5K]

Answer:

140 mile

Step-by-step explanation:

d_{1} +d_{2} =220\\2(2x-10+x)=220\\x=40\\d_{1}=2*(2*40-10)=140mile

While x is the speed of the second train.

6 0
2 years ago
Read 2 more answers
16. A can in the shape of a cylinder has a diameter of 6 centimeters
sladkih [1.3K]

Answer:

surface area = 245.04 cm² (nearest tenth)

Step-by-step explanation:

Surface area of a closed cylinder = 2\pi r^2+2\pi rh

Given:

  • diameter = 6 cm ⇒ radius = 3 cm
  • height = 10 cm

⇒ surface area = 2 × \pi × 3² + 2 × \pi × 3 × 10

                          = 78\pi

                          = 245.04 cm² (nearest tenth)

8 0
2 years ago
Type the height of the ramp (h), in inches. Round your answer to the nearest whole inch.
sveta [45]

Answer:

49 inches

Step-by-step explanation:

To obtain the height, h of the ramp ;; we use trigonometry ;

h = opposite and the value of the hypotenus :

Sin θ = opposite / hypotenus

Sin 22 = h / 132

h = 132 * sin 22

h = 132 * 0.3746065

h = 49.44

Height of ramp = 49 inches

3 0
2 years ago
The female brine shrimp lives up to 90 days. she produces 100 cysts every 4 days. what is the total number of cysts she produces
kifflom [539]
She will produce 2250 cysts :) 90/4 = 22.5
22.5 * 100 = 2250
4 0
3 years ago
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