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Lisa [10]
3 years ago
10

Simplify the expression. 3.72 + 9 - 2.7z

Mathematics
2 answers:
bekas [8.4K]3 years ago
4 0

Answer:

12.72-2.7z

Step-by-step explanation:

just add the numbers up and get ur answer! have a lovely day :)

nexus9112 [7]3 years ago
4 0

Answer:

12.72 - 2.7z

Step-by-step explanation:

3.72 + 9 - 2.7z\\\\12.72-2.7z

Only '3.72' and '9' are like terms in the expression.

Hope this helps.

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60/1 in a equivalent ratio
Elena-2011 [213]
60 /1 = 120 /2 = 180 /3

hope it helps
8 0
3 years ago
Read 2 more answers
A boat takes 3.6 h to travel downstream from its dock to a fishing hole. If the water were still, it would have taken 4.5 h to m
salantis [7]
Given:

t1 = 3.6 h
t2 = 4.5 h
x = speed of boat
y = speed of water

Required:
a) Expression of distance traveled with moving water with 3.6h
     Expression of distance traveled with moving water with 4.5h
b) Solve for y
c) Percent of boat's speed is the water current

Solution:

Working formula: 
distance = velocity*time

a) For travelling downstream, we get the equation

d = (x +y)*3.6

For travelling upstream, we get the equation

d = (x-y)*4.5

b) Setting the distance as equal for travelling upstream or downstream, we arrive at the equation of

(x+y)*3.6 = (x-y)*4.5
3.6x + 3.6y = 4.5x - 4.5y
8.1y =0.9x
y = x/9

c) percentage = 1/9*100% = 11.1%

<em>ANSWERS: a) d = (x+y)*36; d = (x-y)*4.5
</em>
                     <em>b) y = x/9
</em>                     <em>c) 11.1%</em> 

3 0
2 years ago
What is the value of the expression 2x3y when x= −2 and y = 3?
klemol [59]
I think it’s -36, not 100% sure though
6 0
2 years ago
Can someone plz help me?
ivann1987 [24]

Answer: The correct answer is Choice C.

Step-by-step explanation: In order to solve this problem you need to look at the equation’s parts.

The first part is multiplying 5 by the contents of the parenthesis. So, 5(2x-2) equals 10x - 10. Now, but the equation together and simplify it:

10x - 10 + 10x =

20x - 10

3 0
3 years ago
What is the correct proportion for corresponding sides? (Last question)
Sonja [21]
        check picture below

5 0
2 years ago
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