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4 years ago

9

scale drawing of a lake has a scale of 1 cm to 80 m. If the actual width of the lake is 1,000 m, what is the width of the lake o

n the scale drawing?

1 answer:

maks197457 [2]4 years ago

4 0

Answer:

12.5 cm

Step-by-step explanation:

1,000 meters/ 80m is 12.5

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Two consecutive even numbers are such that five times the smaller number , subtracted from eight times the bigger gives 58. Find

olga55 [171]

Answer:

$14\text{ and }16$

Step-by-step explanation:

Let the smaller number be $x$ . Since they are consecutive even numbers, the larger number can be represented by $x+2$ .

Therefore, we have the following equation:

$8(x+2)-5x=58,\\8x+16-5x=58,\\3x=42,\\x=\boxed{14}$

Thus, the larger number is $x+2=\boxed{16}$

6 0

3 years ago

X 0 1 2<br> y -4 -2 0<br> what is the constant rate?

Juliette [100K]

Answer:

+ 2

Step-by-step explanation:

x | y

0 | -4

1 | -2

2 | 0

You are adding 2 to y every time you have a new x.

5 0

3 years ago

Mandy has an IQ of 115. We know that the mean () IQ is 100 with a standard deviation of 15. There are 100 people in Mandy’s Alc

Alex787 [66]

Answer: 16

Step-by-step explanation:

Given : Mean : $\mu=100$

Standard deviation : $\sigma =15$

The value of z-score is given by :-

$z=\dfrac{x-\mu}{\sigma}$

For x= 115

$z=\dfrac{115-100}{15}=1$

The p-value : $P(z>1)=1-P(z$

Now, the number of people smarter than Many is given by :_

$100\times0.1586553=15.86553\approx16$

Hence, there are 16 members smarter than Mandy.

8 0

4 years ago

Estimate the following difference using front-end estimation. 788.44 - 225.6

Liula [17]

Answer:

562.84

Step-by-step explanation:

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4 years ago

Y = 8 ∙ 3^x for x = 4 20 POINTS

8090 [49]

Answer:

648

Step-by-step explanation:

8×3^4=648

8×81=648

7 0

3 years ago