3 years ago

I need help on this math problem

Mathematics

1 answer:

nadya68 [22]3 years ago

6 0

I’m pretty sure this is how to do it.

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Explain how you would round 33 and 89 to estimate their sum

Shalnov [3]

If I'm understanding the question correctly, this is how I would estimate the sum.

I would round each number to the nearest tens place.

33 would be rounded down to 30.

89 would be rounded up to 90.

Then I would do 90+30.

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4 years ago

Mr. Spoke is a sales man at pop's cycle shop, each month he earns $800 plus 7% of his total monthly sales. How much did he earn

Lyrx [107]

Answer:

$1444

Step-by-step explanation:

7% of 9200 = 644

644 + 800 = 1444

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3 years ago

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Hi i need ur help again plz

Bess [88]

The answer should be -3

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3 years ago

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In an article about the cost of health care, USA Today reported that a visit to a hospital emergency room has a mean cost of $14

Misha Larkins [42]

Answer: 0.8461

Step-by-step explanation:

Given : $\mu=144\ \ ; \sigma=392$

Let x be the random variable that represents the cost for the hospital emergency room visit.

We assume that cost for the hospital emergency room visit is normally distributed .

z-score for x=1000 ,

$z=\dfrac{1000-1400}{392}\approx-1.02\ \ \ [\because z=\dfrac{x-\mu}{\sigma}]$

Using z-value table , we have

P-value =P(x>1000)=P(z>-1.02)=1-P(z≤ -1.02)=1-0.1538642

=0.8461358≈0.8461 [Rounded nearest 4 decimal places]

Hence, the probability that the cost will be more than $1000 = 0.8461

3 0

3 years ago

2a = 8<br> 4b = 0<br> 5c = 35<br> x/2 = 8

Furkat [3]

A=4
B=0
C=7
X=16
This is what I think

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3 years ago

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