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Nat2105 [25]
3 years ago
8

Find the value of x x that makes the expressions equivalent. 2(x+9); 30+18

Mathematics
2 answers:
Vlada [557]3 years ago
7 0

Answer:

x=15

Step-by-step explanation:

We are given the equations 2(x+9), 30+18 to search for a value of x that yields an equivalent statement.  2(x+9)=30+18\\2(x+9)=48\\x+9=24\\x=15.

Marina CMI [18]3 years ago
6 0
Hope this helps with the answer to your question

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Dilly is 7 years younger than Dally. In 4 years time she will be half Dally’s age. What is the sum of their ages now?
Step2247 [10]

Answer:

<u>The sum of their ages now is 13</u>

Step-by-step explanation:

Dally's age = x

Dilly's age = x - 7

In 4 years time Dilly will be half Dally’s age, therefore:

Dilly's age plus four equals to half of Dally’s age plus four,

replacing with the values and variables we know:

x - 7 + 4 = (x + 4) /2

x - 3 = (x + 4) /2

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x = 10 ⇒ x - 7 = 3

<u>The sum of their ages now is 13 (10 + 3)</u>

4 0
3 years ago
What is the domain of the following functions
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Answer:

C.

Step-by-step explanation: HOPE THIS HELPED

7 0
3 years ago
What is the second factor when 0.200 is written scientific notation​
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Step-by-step explanation:

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5 0
3 years ago
What is the area of the irregular polygon below
garik1379 [7]

Answer:

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Step-by-step explanation:

To find the answer,

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3 0
3 years ago
Read 2 more answers
Simplify. 8u+9v+3u−5v
musickatia [10]
Combine like terms
8u+3u= 11u
and
9v-5v= 4v
So the answer is 11u+4v
8 0
3 years ago
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