rob can dig 1/10ft in one hour
Shayna can dig 1/7ft in one our
together they can dig
1/10+1/7
(7+10)/70 in one hour
17/70
in for hours they can dig
17/70×4
68/70
the left work is 2/70
in 60 minutes they can dig 17/70
1/70 work can be done in 60 minutes/17
2/70 work can be done in 60/17×2 minutes
7.088 minutes
for the entire work they take 4hours and 7 minutes
Answer:
50 combos
Step-by-step explanation:
Put it into an equation first in order to find x.
2x + 250 = 7x
Subtract 2x from both sides.
250 = 5x
Then divide both sides by 5.
x = 50
Therefore you need 50 combo meals in order to make the amount made equal to the amount paid.
<u>You can check your work by plugging in the number to both.</u>
$250 plus the $2 times 50 combo meals.
250 + 2(50) = 350
$7 times 50 combo meals
7 x 300 = 350
Answer:
The simplified product, in standard form, has exactly 2 negative terms. The simplified product has 2 terms.
Step-by-step explanation:
(b-2c)(-3b+c)
distribute and you will get
-3b^2+bc+6bc-2c^2
combine like terms
-3b^2+7bc-2c^2
Answer:
<h3>
</h3>
Step-by-step explanation:
The SI unit of work is Joule.
Further more explanation:
▪️
⇒Work done by a force acting on a body is defined as the product of force and displacement of the body in the direction of the force.
▪️
⇒The system of units which is agreed by the international convention of scientists held in France in 1960 is called SI unit.
▪️
⇒One joule is the amount of work done when one Newton force displaces a body through one metre in its own direction.
Hope I helped!
Best regards!
