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pochemuha
4 years ago
9

A student concluded that the solution to the

Mathematics
1 answer:
Nesterboy [21]4 years ago
5 0
<h3>Answer:</h3>

isr=-2. No, i dont agree the student forgot the negative and forgot to dicide the 2 so that the x is by its self.

<h3>Steps:</h3>

first you have to get the 2x by its self.

2x+1+3=0

-1. -1

-3. -3

2×=-4

÷2 ÷2

<h2 />
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How far above sea level is the ranger station?
Schach [20]
Since he descended 12 meters, we subtract this from the overall height of Mount Ka'ala, so then we are only calculating how high ABOVE the sea level it is.

1232 - 12 = 1220

The height of Mount Ka'ala is therefore 1,220 meters.
To calculate how much a fifth of Mount Ka'ala is (since the ranger station is 2/5's up), we would divide this number by 5

1220 ÷ 5 = 244

Since ONE fifth of the height is 244 meters, TWO fifths would be double that amount.

244 x 2 = 488

488 meters.
The ranger station is 488m above sea level.
3 0
3 years ago
Benson purchased a $1,800 certificate of deposit that earns simple annual interest. At the end of 1 year, the certificate was wo
Makovka662 [10]

Answer:

<h2><u> 3.2%</u></h2>

Step-by-step explanation:

Step one:

given data

principal P= $1800

time t= 1 year

Final amount A=1857.60

rate r=?

Step two:

we are expected to solve for the rate, let assume the investment is a simple interest type.

A=P(1+rt)

solve for r we can substitute our data

1857.60=1800(1+r*1)

1857.60=1800+1800r

1857.60-1800=1800r

57.6=1800r

r=57.6/1800

r=0.032

0.032*100= 3.2%

<u>This shows that the rate is 3.2%</u>

5 0
3 years ago
Different ways to order rational numbers?
liubo4ka [24]
On a number line positive and negative fractions and decimals in order from least to greatest. 
4 0
3 years ago
A scale on a blueprint drawing of a house shows that 6 centimeters represents 3 meters. What number of centimeters on the bluepr
Sedaia [141]

Answer:

54

Step-by-step explanation:

27 divided by 3 = 9

9 times 6cm= 54cm

4 0
3 years ago
Hurry please this is worth 25 points
Troyanec [42]

Answer:

1/8 mile

Step-by-step explanation:

This is a subtraction problem. We need to subtract 5/8 from 3/4. We need a common denominator of 8.

3/4 - 5/8 = 6/8 - 5/8 = 1/8

Answer: 1/8

6 0
3 years ago
Read 2 more answers
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