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meriva
4 years ago
14

A delivery person uses a service elevator to bring boxes of books up to an office. The delivery person weighs 140 lb and each bo

x of books weighs 60 lb. The maximum capacity of the elevator is 970 lb. How many boxes of books can the delivery person bring up at one​ time?
The delivery person can bring up_____boxes of books.

HEY YALL PLS HELP ME IN DIS PLSSSSS
Mathematics
1 answer:
Sindrei [870]4 years ago
5 0

Answer:He can bring up 13.8333333333 boxes each trip

Step-by-step explanation:

970-140= 830

830÷60=13.8333333333

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One number is 8 more than another. Their product is -16.
vekshin1

Answer:

The two numbers are 4 and -4

Step-by-step explanation:

Turn the words into equations: let's assign one number to be x and the other to be y

x+8=y

x*y=-16

To solve, substitute the value of y in the first equation into y in the second equation.

This gives x*(x+8)=-16

Simplifying gives x^2+8x=-16

x^2+8x+16=0

(x+4)^2=0

x=-4

plug this value of x back into the first equation, -4+8=y, y is 4

Now to make sure the answer is correct: 4 is 8 more than -4, and 4*-4 does equal 16

7 0
1 year ago
If it takes 1,800 foot- pounds of work to push a rock fifteen feet, what amount of force was used?
ella [17]

Answer:

120 lbs

Step-by-step explanation:

Work = force * distance

1800 ft-lb = force * 15 ft

force = 1800 ft-lb / 15 ft

=1800/15 ft-lb/ft

=120lbs

6 0
4 years ago
you have a set of 10 cards numbered 1 to 10. you choose a card at random. Event A is choosing a number less than 7. Event B is c
saul85 [17]

Answer:

6/10 for event A or 3/5 reduced

5/10 for event B or 1/2 reduced Hope that helps!

6 0
3 years ago
Read 2 more answers
Suppose a poker hand contains seven cards rather than five. Compute the probabilities of the following poker hands: (a) a seven-
geniusboy [140]

Answer:

a) 0.00031

b)  0.0017

c)  0.31

d) 0.00018

Step-by-step explanation:

attached below is the detailed solution

Total number of 7-poker cards are 52P7 = 133784560

A) Determine the probabilities of Seven-card straight

probability of seven-card straight = 0.00031

B) Determine the probability of four cards of one rank and three of a different rank

P( four cards of one rank and three of different rank ) = 0.0017

C) Determine probability of three cards of one rank and two cards of each two different ranks

P( three cards one rank and two cards of two different ranks ) = 0.31

D) Determine probability of two cards of each of three different ranks and a card of a fourth rank

P ( two cards of each of three different ranks and a card of fourth rank ) =  0.00018

8 0
3 years ago
4. What is the measure of each interior angle of a regular 28-gon?
melomori [17]

Step-by-step explanation:

Measure of each interior angle of 28 sided polygon

\frac{(28 - 2) \times 180 \degree}{28}  \\   \\  =  \frac{26 \times 180 \degree  }{28}  \\  \\ =  \frac{4680 \degree  }{28}  \\  \\  = 167.14\degree \\

8 0
3 years ago
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