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kolbaska11 [484]
2 years ago
8

Please help 2 x ( 6 ÷ 2 + 8 ) - 4​

Mathematics
1 answer:
11111nata11111 [884]2 years ago
6 0
2x(3+8)-4
2x(11)-4
22-4
18
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the cost of a phone call lasting 3 minutes 30 seconds was 52.5 cents . at this rate what was the cost of a call lasting 5 minute
Effectus [21]

Answer:

80 cents

Step-by-step explanation:

The easiest place to start for this is to calculate how much it costs per minute of call time. To do this, if we know that it costs 52.5 cents to call for 3.5 minutes, we can divide those two numbers to get how much it costs per minute.

52.5/3.5 = 15

If it costs 15 cents per minute, and we want to know how much it would cost to call for 5.33 (5 and 1/3 of a minute), then we multiply our 15 cents a minute by the number of minutes to get the final cost.

15 x 5.33 = 79.99

Because we can't have 99/100 cents, rounding up to 80 is important to get a proper answer.

6 0
3 years ago
Solve 3x +5 =14 please help me
alisha [4.7K]
3x=14-5
3x=14-5
3x=9
x=9 ➗ 3
x= 3

the answer is 3
4 0
3 years ago
Read 2 more answers
An inch is about 2.54 centimeters. Write an expressions wich estimate the number of centimeters in x inches.Then centimeters the
Alborosie
2.54(x) = cm in inches
2.54(12) = 30.48
12 inches = 30.48 cm
6 0
3 years ago
the area of asquare field is 2.25 hectares.find its perimeter in metres if hectare is qual to 10000square metres​
Sergio [31]

Answer:

Perimeter of the square field is 600 meters.

Step-by-step explanation:

Given:

Area of a square field = 2.25 hectares

1 hectare = 10000 m²

∴2.25 hectares =2.25\times10000 = 22500 m²

Now, let each side length of the square field be a meters.

∴ Area = a^{2}

⇒ 22500 = a^{2}

⇒ a=\sqrt{22500}=150 m

Now, perimeter of a square is given as, P = 4a.

Here, a=150 m.

∴ P=4\times150=600 m

Hence, the perimeter of the square field is 600 meters.

8 0
3 years ago
How do you do division/long division? I was never taught how, and now I am struggling with it. Please answer thoroughly, thanks
grin007 [14]

Answer:

See attached picture for example, hope it helps!

Step-by-step explanation:

4 0
2 years ago
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