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Sloan [31]
3 years ago
13

A 21-inch piece of steel is cut into three pieces so that the second piece is twice as long as the first piece, and the third pi

ece is three inches more than six times the length of the first piece. Find the lengths of the pieces

Mathematics
1 answer:
Pavel [41]3 years ago
7 0
****hope this helps****

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A +-21 = -38<br><br>help me please​
ivann1987 [24]

Answer:

A= -17

Step-by-step explanation:

A +-21 = -38

    +21     +21

-38+21= -17

A= -17

5 0
2 years ago
Read 2 more answers
Due 4/29/22. add explanation to please if you can, so that i can understand better
vagabundo [1.1K]

Answer:

48

240 ÷ 5 = 48

Please Mark Brainliest If This Helped!

8 0
2 years ago
Use a number line to explain why --15 ÷ 3 =-15
Diano4ka-milaya [45]
It's equal to -15 because you are dividing by an negative and if it's only 1 negative number in your equation then your answer will be a negative and if it's 2 negatives then it would be a positive answer
7 0
3 years ago
Question set 2: Many species of terrestrial tree frogs that hibernate at or near the ground surface can survive prolonged exposu
joja [24]

Answer:

0.86

Step-by-step explanation:

The z-score we need to make the comparison is given by

\bf z=\frac{-2.05-(-2)}{\sigma/\sqrt{n}}

where

\bf \sigma= the standard deviation established in the study

n = the sample size

\bf z=\frac{-2.05-(-2)}{0.3/\sqrt{42}}=-1.0801

and for the Normal distribution N(0,1) we want to find  

<em>P(X > -1.0801) </em>

By using a spreadsheet or the table attached, we find that

P(X > -1.0801) = 0.86

(See picture attached)

7 0
3 years ago
What is y=x-4 2x+y=5
ahrayia [7]
If you would like to solve y = x - 4 and 2 * x + y = 5, you can do this using the following steps:

y = x - 4
2 * x + y = 5
_____________
2 * x + (x - 4) = 5
2 * x + x = 5 + 4
3 * x = 9     /3
x = 9 / 3 
x = 3

y = x - 4 = 3 - 4 = -1

The correct result would be x = 3 and y = -1.
7 0
3 years ago
Read 2 more answers
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