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Umnica [9.8K]
3 years ago
11

a record impact books at a rate of 48 books every 2 minutes how many minutes do the worker need to unpack 168 books?​

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
8 0

Answer:

7minutes

Step-by-step explanation:

so if 48 books are sorted in 120 seconds what about 168 books if you cross multiply you will get 420 seconds which converted to minutes is 7

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What is 8/18 writin as a decimal
Fudgin [204]

Answer:

answer= 0.44 as a decimal

7 0
3 years ago
Plutonium-240 decays according to the function Q(t)=Q(subscripto)e^(-kt) where Q represents the quantity remaining after t years
svetoff [14.1K]
<span>The answer is 9,990 years. Using the exponential decay question, we can figure out how long it will take Plutonium-240 to decay from 27 grams to 9 grams. Setting the equation up looks like this, 9 = 27 e^ (-0.00011 t). From this you get, 0.333333 = e ^(-0.00011 t). Next, you simplify by dividing both sides by the natural log, -1.0986 = -0.00011 t. Finally, you solve by dividing both sides by -0.00011, giving 9,987 years for t, rounded up to 9,990 years.</span>
7 0
4 years ago
Read 2 more answers
3. The manager of a store marks up all the items by 10%. If x is the original price, which expression represents the new price w
goldenfox [79]
Answer:
1.1x
x + 0.1x

Step-by-step explanation:

The manager of a store marks up all items by 10%.

So, if the original price of any item is x, then increase for markup is 10% of x i.e. .
Hence, the expression that represents the new price with the markup is (x + 0.1x) = 1.1x.
7 0
3 years ago
the area of a square poster is 27 in.2. Find the length of one side of the poster to the nearest tenth of an inc
gayaneshka [121]

Answer:

5.2 inches

Step-by-step explanation:

Let a be the side of the square poster.

The area of it is:

● A = a^2

● 27 = a^2

● a = √27

● a = √(9×3)

● a = 3√3

● a = 5.19

Round it to the nearest tenth

● a = 5.2 inches

5 0
4 years ago
Explain how to solve this, step by step?
andrey2020 [161]

Answer:

The cost of  chair is \$260

The cost of  a lamp is \$65

The cost of  a table is \$237

Step-by-step explanation:

Let

x----> the cost of  chair

y----> the cost of  lamp

z----> the cost of table

we know that

x+y+z=562 ----> equation A

x=4y -----> y=x/4 -----> equation B

z=x-23 ------> equation C

substitute equation C and equation B in equation A and solve for x

x+(x/4)+(x-23)=562

(9/4)x=562+23

(9/4)x=585

x=585*4/9=\$260

Find the value of y

y=260/4=\$65

Find the value of z

z=260-23=\$237

therefore

The cost of  chair is \$260

The cost of  a lamp is \$65

The cost of  a table is \$237

7 0
3 years ago
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