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tiny-mole [99]
3 years ago
5

Welder A charges $300 for every 4 hours of labor. Welder B charges $240 for every 3 hours of labor. Which welder offers a better

deal?
Mathematics
2 answers:
g100num [7]3 years ago
5 0

Answer:

Welder A

Step-by-step explanation:

First find least common multiple which is 12.

A: 300 * 3= 900

B: 240* 4 = 960

larisa86 [58]3 years ago
4 0

Answer: Welder A has the better deal

Step-by-step explanation: divide 300 by 4. Then divide 240 by 3. And compare the two answers.

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Help me with this question, please!
AURORKA [14]

Answer:

3,432 m²

Step-by-step explanation:

The amount of aluminum in square meters needed to make the mailboxes = 1863(surface area of each mailbox)

Surface area of each mail box = ½(surface area of cylinder) + (Surface area of rectangular prism/box - area of the surface of the box that joins the half-cylinder)

✔️Surface area of ½-cylinder = ½[2πr(h + r)]

r = ½(0.4) = 0.2 m

h = 0.6 m

π = 3.14

Surface area of ½-cylinder = ½[2*3.14*0.2(0.6 + 0.2]

= 0.628(0.8)

Surface area of ½-cylinder = 0.5024 m²

✔️Surface area of the rectangular box/prism = 2(LW + LH + WH)

L = 0.6 m

W = 0.4 m

H = 0.55 m

Surface area = 2(0.6*0.4 + 0.6*0.55 + 0.4*0.55)

Surface area of rectangular box = 1.58 m²

✔️Area of the surface joining the half cylinder and the box = L*W = 0.6*0.4 = 0.24 m²

✅Surface area of 1 mailbox = (0.5024) + (1.58 - 0.24)

= 0.5024 + 1.34

= 1.8424

Amount of aluminum needed to make 1863 mailboxes = 1863 × 1.8424 = 3,432.3912

= 3,432 m²

8 0
3 years ago
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Jlenok [28]

Answer:

The answer is in the included image

7 0
3 years ago
Solve the proportion 9/12=15/x
Nikolay [14]

Answer:

20

Step-by-step explanation:

3/4=15/x

4/3=x/15

4/3*15=x

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3 years ago
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stepladder [879]
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if it travels 300000000 meters in only 1 second, in 3468960000000 seconds, it will travel then (300000000) * (3468960000000) meters

or  1040688000000000000000 meters.
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3 years ago
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