Ask question

Ask question

All categories

3 years ago

7

Ank estimated that he drove about 450 miles in a week. He actually drove 485 miles. Find the percent error in Hank's estimate. R

ound to the nearest whole percent.

1 answer:

yanalaym [24]3 years ago

5 0

Answer:

7.2%

Step-by-step explanation:

Given data

Estimate=450miles

Actual= 485 miles

%error= actual-estimate/ actual*100

%error=35/ 485*100

%error=0.072*100

%error=7.2%

You might be interested in

What are the advantages and disadvantages of using a line plot to represent data?

Varvara68 [4.7K]

The advantage is that you can visibly see the difference in the data. Disadvantage of line plots would be that not as appealing.

3 0

3 years ago

Emma scored 4 points more than twice number of points teagan scored. Emma scored 3 points. How many did teagan score

Snowcat [4.5K]

Let's write T for Teagan's score and E for Emma's score.
Also, let's write an equation

E = 2T + 4
E = 3
2T + 4 = 3
subtract 4 from both sides
2T = -1
divide both sides by 2
T = -1/2

To see of this is correct:
2T + 4 = 3
2(-1/2) + 4 =?= 3
-1 + 4 =?= 3
3 = 3

Hope this helps

8 0

3 years ago

Which expressions are equivalent to (7^-2)*(7^6)

Ierofanga [76]

Answer:

D

Step-by-step explanation:

(7^-2)*(7^6)=7^-2+6

......since the base 7 is the same, when u multiply them, you should add the exponents and keep 7 as it is. That will be 7^4, which in equivalent to ans D(7^2)^2.

8 0

2 years ago

Read 2 more answers

An arithmetic sequence has this recursive formula:

horsena [70]

Answer:

$\text{\bf{C.}}\quad a_n=4+(n-1)(-7)$

Step-by-step explanation:

An arithmetic sequence that is described by the explicit formula ...

$a_n=a_1+(n-1)d$

can also be described by the recursive formula ...

$\left \{\begin{array}{l}a_1=\text{(first term)}&a_n=a_{n-1}+d&\end{array}\right.$

Matching parts of the formulas, we see that a1 = 4, d = -7. Putting these values into the explicit formula gives ...

$a_n=4+(n-1)(-7)$

4 0

3 years ago

4-2(x+7)=3(x+5) using the equation solver

Viefleur [7K]

Answer:

x = -5

Step-by-step explanation:

We don't know what equation solver you're supposed to use. Here are the results from one available on the web.

8 0

3 years ago

Read 2 more answers