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Viefleur [7K]
4 years ago
13

The sum of two numbers is negative thirty. One number is five times the other

Mathematics
2 answers:
Mademuasel [1]4 years ago
4 0

Answer:

-25, -5

Step-by-step explanation:

Let's write a system of equations. Lets call x and y the numbers, where x is 5 times y.

x + y = -30

x = 5y

Plugging this in, we get:

5y + y = -30

y = -5

Since y = -5, we can plug this in, and see that x = -25.

vaieri [72.5K]4 years ago
3 0

Answer:

-5 & -25

Step-by-step explanation:

1st number=x

2nd number=5x

x+5x=-30

6x=-30

x=-5

5x=-25

So the numbers are -5 & -25

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The equation of direct variation is,

\begin{gathered} y=kx \\ k=\frac{y}{x} \end{gathered}

Substitute the values of <em>y</em> and <em>x</em>.

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So, the obtained equation will be <em>y</em>=1.35(x).

Let's check with the values of <em>x</em>.

1) If <em>x</em>=4

\begin{gathered} y=1.35x \\ y=1.35(4) \\ y=5.4 \end{gathered}

2) If <em>x</em>=2

\begin{gathered} y=1.35x \\ y=1.35(2) \\ y=2.7 \end{gathered}

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1 year ago
1/4( -1 + 4)+3/5 please help ME missing work!
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Answer:

1.35

Step-by-step explanation:

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Abby is surveying people in the city about their interest in a new shopping mall. She found that 180 people, or 37.5% of those s
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vampirchik [111]

Answer:

see the explanation

Step-by-step explanation:

we know that

A gross is equal to 120 ones or ten dozen

what is 15 tens - 1 gross

we know that

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1 gross means ---> That you are adding 10, 12 times or multiplying 10 by 12

which gives you

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so

The algebraic expression of 15 tens - 1 gross is equal to

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Convert to word expression

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Step-by-step explanation:

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