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Sergio039 [100]
3 years ago
8

Jamie is x years old. His friend ana is the same age. Write an expression to represent the sum of jamie and ana's ages

Mathematics
2 answers:
dmitriy555 [2]3 years ago
8 0

Answer:

A+J

Step-by-step explanation:

Say that J= Jamie

And A=Ana

However their ages are equal so lets have X=Jamie

And X=Ana

Then Y= sum of age

If their ages are the same then you can write it as

x+x=y


Vika [28.1K]3 years ago
7 0

2 expressions

x+x

or

2x

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Is the open sentence 3z = 2z +5 true or false when z=5?
11111nata11111 [884]
If 3z=2z+5 and z=5, then you’d just plug the 5 in.

3(5)=2(5)+5 —> 15=10+5 —> 15=15

This statement is TRUE because 15 does equal 15.

I hope this helps. :)
8 0
3 years ago
State true or false. If 9 is the solution of variable x in the equation fraction numerator 5 straight x space minus space 7 spac
Gekata [30.6K]

Answer:

False

Step-by-step explanation:

Based on what is stated in the question :

Expressing the worded equation Mathematically,

(5x - 7) / 2 = y

If y = 28

(5x - 7) / 2 = 28

Cross multiply

5x - 7 = 28 * 2

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5x = 56 + 7

5x = 63

x = 63 / 5

x = 12.6

Hence, x ≠ 9

8 0
2 years ago
A brick is 5/7 of a foot tall. If you need to build a brick wall that is 10 feet tall, how many bricks tall will the wall be?
svlad2 [7]

Answer:

7 1/7

Step-by-step explanation:

For the problem:

5 /7 × 10  = ?

Convert any mixed numbers to fractions:

10 = 10

Multiply all of the numerators by each other. Do the same with the denominators and form a new fraction with these values:

5 × 10

7 × 1

=  

50 /7

50 ÷ 7 = 7R1, therefore:

50 /7 =  7 1/7

The result is:

5

7

× 10 = 7 1/7

5 0
2 years ago
Daniel's class has 30 students. In the class, 16 students are boys. Which decimal is equivalent to the fraction of the class tha
konstantin123 [22]

Answer:

0.53333333333

Step-by-step explanation:

5 0
3 years ago
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Lilit [14]

Answer:

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Step-by-step explanation:

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2 years ago
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