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ad-work [718]
3 years ago
10

Select all the pairs of like terms in the expression.25y + 15x – 0.2y – 6 + (–2)

Mathematics
1 answer:
ziro4ka [17]3 years ago
8 0

Answer:

25y + 15x - 0.2y - 6 +(-2) =31.8

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Help with practice problem
AlladinOne [14]

Answer

x^2      -    y^2     x4    

0.25           9

6 0
2 years ago
Devaughn's age is three times Sydney's age. The sum of their ages is <br> . What is Sydney's age?
g100num [7]

Answer:

syd is 23 and dev is 69


Step-by-step explanation:

Let Dev's age be x and Syd's age be y

Since Dev is 3 times older than Syd, we may write  

x

=

3

y

Since the sum of their ages is 92, we may write  

x

+

y

=

92

Now replacing x with 3y, we get :  

3

y

+

y

=

92

Hence  

y

=

92

4

=

23

and so Syd is 23 year old.

Back substituting we get Dev is 69 years old.

8 0
3 years ago
Read 2 more answers
Write 3.6 in a word form
Anit [1.1K]
Three and six tenths

Hope I helped!
5 0
3 years ago
If (angle)A and (angle)B are supplementary, and m(angle)A = 57°, what is m(angle)B?
Sedbober [7]

Answer:

123°

Step-by-step explanation:

Supplementary angles add up to be 180 degrees.

This means angles A and B will add up to be 180 degrees.

We can find the measure of angle B by subtracting 57 from 180

180 - 57

= 123

So, the measure of angle B is 123 degrees

7 0
3 years ago
Find m. DCR if m. RCB= 115°<br> and m_ DCB = 169º.
Burka [1]
It is 54. Draw it out. You will see that DCB - RCB = DCR
7 0
3 years ago
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