A square has sides lengths of 7 in.find the length of the squares diagonal. if necessary round to the nearest tenth

The length of a rectangle is 3 cm more than four times the width (This will be your first equation. The second equation comes fr

Paul [167]

Answer:

the width is 5 and the length is 23

Step-by-step explanation:

2x+2(4x+3)=56

10x+6=56

10x=50

x=5

4(5)+3=23

3 0

3 years ago

GRADES On her first four quizzes, Rachael has earned scores of 21, 24, 23, and 17 points. What score must Rachael

Shkiper50 [21]

Answer:
20

Explanation:
For the mean to be 21, the total of the 5 numbers must be 21*5= 105

To find what the final quiz score must be, we need to subtract the first 4 scores from 105. 105- 21- 24- 23- 17= 20

We can check this answer by finding the median of the 5 numbers now (17,20,21,24,23). The new median is 21 which means the final quiz score must be 20!

Hope this helped! :)

3 0

2 years ago

Find a solution to the system. Make sure to write as a coordinate.

RUDIKE [14]

Answer:

x=2, y=3

Step-by-step explanation:

This is a system of equations.

To solve a system of equations, we use the substitution method.

We can plug in the first equation, $x=2y-4$ , into the value for x in the second equation. Now, the second equation looks like this: