Ask question

Ask question

All categories

1 year ago

13

Cory predicts it will take him 64 minutes to travel to Baltimore from Washington D.C. If the trip actually took 74 minutes, what

was Cory's percent error? Round your answer to the nearest tenth of a percent.

1 answer:

n200080 [17]1 year ago

6 0

Answer:13.5

Step-by-step explanation:

the answer is 13.5

You might be interested in

Which relationships have the same constant of proportionality between y and x as in the equation y=1/3x?

Marina CMI [18]

Y and X is urgent answer

4 0

1 year ago

Which diagram represents a fraction equivalent to 75%?

Lapatulllka [165]

Answer:

Honestly i think i know which diagrams your talking about but if it there is an option that has 20 squares and only 15 are shaded then thats the one u choose I'm thinking that option is c

I hope this helps please mark me brainliest

7 0

2 years ago

Given AC ≅ FE and CB ≅ ED which statement is correct?

Kisachek [45]

Answer:

D is the correct answer.

Step-by-step explanation:

3 0

1 year ago

Read 2 more answers

Please help........................

xxTIMURxx [149]

My calculator gave me 22 but download Calculate84 and see if you get the same answers

8 0

2 years ago

The square of a number decreased by 3 times the number 28 find all possible values for the number

stealth61 [152]

Question:

The square of a number decreased by 3 times the number is 28 find all possible values for the number

Answer:

The possible values of number are 7 and -4

Solution:

Given that the square of a number decreased by 3 times the number is 28

To find: all possible values of number

Let "a" be the unknown number

From given information,

square of a number decreased by 3 times the number = 28

$a^2 - 3a = 28$

$a^2 - 3a - 28 = 0$

Let us solve the above quadratic equation

$\text {For a quadratic equation } a x^{2}+b x+c=0, \text { where } a \neq 0$

$x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}$

Using the above formula,

$\text { For } a^{2}-3 a-28=0 \text { we have } a=1, b=-3, c=-28$

$\begin{aligned}&a=\frac{-(-3) \pm \sqrt{(-3)^{2}-4(1)(-28)}}{2 \times 1}\\\\&a=\frac{3 \pm \sqrt{9+112}}{2}\\\\&a=\frac{3 \pm \sqrt{121}}{2}=\frac{3 \pm 11}{2}\\\\&a=\frac{3+11}{2} \text { or } a=\frac{3-11}{2}\\\\&a=7 \text { or } a=-4\end{aligned}$

Thus the possible values of number are 7 and -4

5 0

1 year ago