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tigry1 [53]
3 years ago
11

Solve for x. 2/3x=10

Mathematics
2 answers:
Ierofanga [76]3 years ago
7 0
2/3x=10
x=10÷2/3
x=10×3/2
x=5×3
x=15
Alona [7]3 years ago
4 0

Answer:

x=15

Step-by-step explanation:

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3 years ago
Two window washers start at the heights shown. One is rising, the other is descending. How long does it take for the two window
kvasek [131]

Answer:

After 18.32 seconds washer men will be at the same height.

Step-by-step explanation:

Given question is incomplete; here is the complete question.

Two window washers start at the heights shown. (A: 21 ft high rising 8 in per second. The other is 50 feet high descending 11 inches per second) one is rising one is descending. How long does it take for the two window washers to reach the same height? Explain

Two window washers are moving in opposite directions.

First window washer is at 21 ft and rising with the speed of 8 inches per second.

Second window washer is at 50 feet and descending with the speed of 11 inches per second.

Since 1 feet = 12 inches

Therefore, 21 feet = 21×12 = 252 inches

Similarly, 50 feet = 50 × 12 = 600 inches

Let both the window washer takes 't' time to be at the same height.

Height of the first window washer after t seconds = (252 + 8t) feet

Height of the second window washer after t seconds = (600 - 11t) feet

Since both are at the same height after time 't',

(252 + 8t) = (600 - 11t)

8t + 11t = 600 - 252

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t = 18.32 seconds

Therefore, after 18.32 seconds washer men will be at the same height.

8 0
3 years ago
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Answer:

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Step-by-step explanation:

6 0
3 years ago
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Answer:

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Step-by-step explanation:

The first thing we do is rationalize this expression. (2+x)^-3 is written as

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Then from there we can foil out the denominator. It is easiest to foil (2+x)(2+x) first and then multiply that product by (2+x).

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(4+4x+x^2)(2+x) = 8+8x+2x^2+4x+4x^2+x^3.

Then we combine like terms and put them in order to get:

x^3 + 6x^2 + 12x + 8

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2 years ago
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Answer:

The deepest that Amy dove below the ocean's surface is 5 feet.

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