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Darina [25.2K]
3 years ago
6

Heyyy I need helppp plzzz

Mathematics
2 answers:
finlep [7]3 years ago
5 0

x + 2x = 109

mark brainliest

Alecsey [184]3 years ago
4 0

Answer:

x + 2x = 109

Step-by-step explanation:

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5(5t + 1) = 25t-7<br> Can someone help me with this solution??
masha68 [24]
Firstly you multiply 5 with everything in the brackets on the left side of = . and than you put t on the left side and change sign (if it was + then its going to be -) and numbers on right side and do the same with signs. then just calculate the rest

5(5t +1) = 25t - 7
25t + 5 = 25t - 7
25t - 25t = -7 + 5
0=-2
the statement is false
7 0
3 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
What is the equation of a horizontal line passing through the point (−7, 5)?
blsea [12.9K]
Hello : 
an equation is : y-5 = 0( x+7)...(the slope =0 '<span> horizontal line ' )</span>                          y=5
4 0
3 years ago
What is 5 x 3 +7 x 2 +3x−3 5x3+7x2+3x−3 increased by 4 x 4 −2 x 2 −6x+4 4x4−2x2−6x+4 ?
wlad13 [49]

Answer:

1,178 Where'd you find that?!?!

Step-by-step explanation:

7 0
3 years ago
How to simplify -3 (4×-5y-5×)
VMariaS [17]
Distribute -3 to the rest of the numbers by multiplying them together. That’s all you need to do you don’t have to solve
6 0
3 years ago
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