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vfiekz [6]
3 years ago
14

Estimate each quotient:

Mathematics
1 answer:
Lelu [443]3 years ago
6 0

Hope this helps!!

1) 25.1 rounds to 30. 30/8=5

2) 59.67 rounds to 60 and 11.1 rounds to 10, so 60/10= <u>6</u>

3) 82.77 rounds to 80 and 7.5 rounds to 10, so 80/10= <u>8</u>

4) 496.3 rounds to 500 and 98 rounds to 100, so 500/100= <u>5</u>

<u></u>

5) 1.76 rounds to 2 and 0.91 rounds to 1, so 2/1= <u>2</u>

<u></u>

6) 13.07 rounds to 13 and 7.41 rounds to 7, so 13/7= <u>1.85714285714</u>

7) 41.3 rounds to 40 and 6.73 rounds to 7, so 40/7= <u>5.714</u>

<u></u>

8) 81.4 rounds to 80 and 10.03 rounds to 10, so 80/10= <u>8</u>

                                                                                                           __

9) 384.4 rounds to 380 and 88.1 rounds to 88, so 380/88= <u>4.318</u>

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Dale made a model of a lighthouse using a 4 inches=50 feet if the lighthouse is 120 feet tall, how tall is his model
olchik [2.2K]

Answer:

8 2/5 inches!

Step-by-step explanation:

The lighthouse is 120 feet, and 4 inches of height on the model equals 50 feet of height on the lighthouse. 100 divided by 50 = 2, and 4 multiplied by 2 is 8. 20 divided by 50 = 2/5, so the answer is 8 2/5 inches. :)

3 0
3 years ago
Gerry's electric toothbrush rotates the brush 125 times per second.
makkiz [27]

Answer:

Her electric toothbrush makes 210,000 rotations in one week

Step-by-step explanation:

Note that:

  • 1 minute = 60 seconds
  • 1 week= 7 days

∵ Gerry brushes her teeth for two minutes, twice a day

→ Twice means times 2

∴ Gerry brushes her teeth for 2 × 2 = 4 minutes a day

∵ Gerry's electric toothbrush rotates the brush 125 times per second

∵ 1 minute = 60 seconds

→ Multiply 125 by 60 to find the number of rotating in 1 minute

∴ Gerry's electric toothbrush rotates 125 × 60 = 7,500 in 1 minute

∵ Gerry brushes her teeth for 4 minutes a day

→ Multiply it by 4 to find the number of rotation in 1 day

∴ Gerry's electric toothbrush rotates 7,500 × 4 = 30,000 in 1 day

∵ 1 week = 7 days

→ Multiply the number of rotation in 1 day by 7 to find it in 1 week

∴ Gerry's electric toothbrush rotates 30,000 × 7 = 210,000 in 1 week

∴ Her electric toothbrush makes 210,000 rotations in one week

3 0
3 years ago
Bill and Felicia each bake cookies for a party. Bill bakes 3 times as many cookies as Felicia. Felicia bakes 24 fewer cookies th
denis-greek [22]

Answer:

  • b = 3f
  • f = b -24

Step-by-step explanation:

The word problem describes two relationships between the numbers of cookies baked. When b and f represent the numbers of cookies baked by Bill and Felicia, respectively, those relationships are ...

  1. Bill bakes 3 times as many cookies as Felicia. (b = 3f)
  2. Felicia bakes 24 fewer cookies than Bill. (f = b-24)
4 0
3 years ago
*100 points* A circle has a diameter with endpoints (-7, -1) and (-5, -9).
earnstyle [38]

Diameter

  • √(-7+5)²+(-1+9)²
  • √2²+8²
  • √4+64
  • √68
  • 2√17

Radius

  • 2√17/2
  • √17units

Now

Centre

(h,k)

  • (-7-5/2,-1-9/2)
  • (-12/2,-10/2)
  • (-6,-5)

Equation

  • (x-h)²+(y-k)²=r²
  • (x+6)²+(y+5)²=(√17)²
  • (x+6)²+(y+5)²=17

Option A

8 0
2 years ago
Read 2 more answers
What is the percent of change from 6,000 to 60?
Thepotemich [5.8K]

Answer: 99% decrease

Step-by-step explanation: Since the number changes from 6,000 to 60, we know that it's decreasing. Now to find the percent decrease, we divide the amount of change by the original number.

The amount of change is the difference between 6,000 and 60 and the original number is 6,000.

6,000 - 60 is 5,940 so we are left with \frac{5,940}{6,000} and dividing 6,000 into 5,940 gives us 0<em>.</em>99.

Finally, since the problem is asking us for the <em>percent</em>, we write 0.999 as a percent by moving the decimal point 2 places to the right to get 99%.

So when a number changes from 6,000 to 60, it has decreased by 99%.

6 0
3 years ago
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