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Zigmanuir [339]
3 years ago
5

Amanda is making pillows for her sofa, The fabric that she likes costs $45 per yard. Amanda waits until

Mathematics
1 answer:
malfutka [58]3 years ago
4 0

Answer:

15$

Step-by-step explanation:

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A cylindrical roller 2.5 m in length, 1.5 m in radius when rolled on a road was found to cover the area of 16500 m2 . How many r
eduard

Answer:

701 revolutions

Step-by-step explanation:

Given: Length= 2.5 m

            Radius= 1.5 m

            Area covered by roller= 16500 m²

Now, finding the Lateral surface area of cylinder to know area covered by roller in one revolution of cylindrical roller.

Remember; Lateral surface area of an object is the measurement of the area of all sides excluding area of base and its top.

Formula; Lateral surface area of cylinder= 2\pi rh

Considering, π= 3.14

⇒ lateral surface area of cylinder= 2\times 3.14\times 1.5\times 2.5

⇒ lateral surface area of cylinder= 23.55 \ m^{2}

∴ Area covered by cylindrical roller in one revolution is 23.55 m²

Next finding total number of revolution to cover 16500 m² area.

Total number of revolution= \frac{16500}{23.55} = 700.6369 \approx 701

Hence, Cyindrical roller make 701 revolution to cover 16500 m² area.

8 0
3 years ago
Esosa pays $43.19 for 3.7 pounds of salmon. What is the price per pound of the salmon?
joja [24]

Answer:

$11.67

Step-by-step explanation:

$43.19÷3.7=11.672972973, which rounds to $11.67.

3 0
3 years ago
Read 2 more answers
To make concrete it takes 8 parts crushed gravel, 7 parts water and 5 parts cement mix. A worker needs to make 220kg of concrete
Alika [10]
A) 8 + 7 + 5 = 20 parts
b) 220 kg ÷ 20 = 11
c) <span> 8 parts crushed gravel: 8 x 11 = 88 kg
     7 parts water: 7 x 11 = 77 kg
     5 parts cement: 5 x 11 = 55 kg</span>
8 0
3 years ago
-(-8)= can someone please solve this? Is a fill in the blank.
butalik [34]

Answer:

8

Step-by-step explanation:

when multiplying two negative, it turn into a positive.

7 0
3 years ago
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A team of rum runners is needed to run a 1/4 mile relay race if each runner must run 1/16 mile how many runners will be needed
mina [271]
You should multiply and than simplify
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3 years ago
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