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Zarrin [17]
3 years ago
7

One number is 5 less than another. Their sum is 19. Find the numbers.

Mathematics
2 answers:
luda_lava [24]3 years ago
8 0

Answer: 5 and 7

Step-by-step explanation: The first sentence "one number is 5 less than another" tells us how we are going to set up our variables.

If we represent one of our two numbers as (X) the other number will then be (X - 5). Let's call (X) the larger number and (X - 5) the smaller number.

Now we can use our second sentence "Their sum is 19" to set up our equation.

X + (X - 5) = 19

2x - 5 = 19

    +5    +5

2x = 24

÷2   ÷2

 X = 12

Now if (X) the larger number is equal to 12 then (X - 5) the smaller number is (12 - 5) or 7.

Therefore, our two numbers are 5 and 7.

<u />

Softa [21]3 years ago
6 0

Answer: its 14...

Step-by-step explanation:

19-5=14

5+14=19

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Nikolay [14]

Answer:

20

Step-by-step explanation:

3/4=15/x

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5 0
3 years ago
Read 2 more answers
Which expressionism equivalent to -60 / 5 select all that apply 60 divided by negitive 5 60 times 1/5 60 times negitive 1/5 Negi
GaryK [48]

Answer:

Equivalent expressions

A) \frac{60}{-5}

C)  60\times (-\frac{1}{5})

Step-by-step explanation:

Given expression :

\frac{-60}{5}

Choices given :

A) \frac{60}{-5}

B) 60\times \frac{1}{5}

C)  60\times (-\frac{1}{5})

D) -60\times (-\frac{1}{5})

To find the equivalent expression.

We will first evaluate the given expression.

\frac{-60}{5}

⇒ -12    [Quotient of a negative dividend and a positive divisor is always negative]

Evaluating each choice to select the equivalents.

A) \frac{60}{-5}

⇒ -12    [Quotient of a positive dividend and a negative divisor is always negative]

B) 60\times \frac{1}{5}

⇒ \frac{60}{5}

⇒ 12

C)  60\times (-\frac{1}{5})

⇒ -\frac{60}{5}   [Product of a positive and a negative is always a negative]

⇒ -12

D) -60\times (-\frac{1}{5})

⇒ \frac{60}{5}   [Product of two negatives is always a positive]

⇒ 12

∴ We see that the choices A and C are equivalent.

7 0
3 years ago
A 32 year old mother realized that her age is twice the sum of her two children ages. Her son Jose is two years older than her d
jenyasd209 [6]
Again, guess and test should work perfectly fine.  Since 2(x+y)=32, x+y = 16. Because y-2 =x, y could be = 9 and x = 7. Hope that help!
3 0
3 years ago
Read 2 more answers
How do I solve this??
pshichka [43]
Well, first you should make both sides of the equation to the power of 2. 
So, you'll have 7X = 1225, and then X is 175 :)

Have a wonderful day! 
6 0
2 years ago
Solve T = 7c-2d for d.
stepladder [879]

Answer:

d =  \frac{t - 7c}{ - 2}

Hope this helps at all. :)

4 0
3 years ago
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