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Alchen [17]
2 years ago
11

9\\ x+2y=-25\\what is value of x" alt="x+y=-9\\ x+2y=-25\\what is value of x" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
ExtremeBDS [4]2 years ago
5 0

x + y = -9

x + 2y = -25

Rewrite the first equation as x = -9-y

Relace x in the second equation:

-9-y + 2y = -25

Simplify:

-9 +y = -25

Add 9 to both sides:

y = -16

Now you know y,, replace y in the first equation and solve for x:

x -16 = -9

Add 16 to both sides:

x = 7

Answer: x = 7

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3 years ago
If the volume of the figure below is 4,069.44ft3 find the missing dimension
olga_2 [115]

Answer:

x = 9 ft

Step-by-step explanation:

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3 years ago
Gregory draws a scale drawing of his room. The scale that he uses is 1cm: 4ft. On this drawing, the room is 3cm long. Which equa
stepladder [879]

<em><u>The equation can be used to find the actual length of Gregory's room is:</u></em>

\frac{1\ cm}{4\ feet } = \frac{3\ cm }{x\ feet }

<em><u>Solution:</u></em>

Given that,

The scale that he uses is:

1 cm : 4 feet

On this drawing, the room is 3 cm long

Let "x" be the actual length of room

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1 cm : 4 feet

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Therefore, Option C is correct

Given that,

Rob chose A as the correct answer. Which is,

\frac{1}{4} = \frac{x}{3}

But option A is wrong

So, Rob made a mistake in measuring the equivalent ratio, it should be \frac{1\ cm}{4\ feet } = \frac{3\ cm }{x\ feet }

3 0
3 years ago
What is one thousand more than the biggest two-digit number?
Anna35 [415]
99 is the biggest 2 digit number correct? So 1000 more than that is 99 + 1000 = 1099
5 0
3 years ago
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Which formula can be used to find the nth term of a geometric sequence where the first term is 8 and the common ratio is -3
kirill [66]
Hello : 
<span>the nth term is : an= a1×q^(n-1)....... a1 = 8  and q = -3

</span>an= 8×(-3)^(n-1)<span>


</span>
8 0
3 years ago
Read 2 more answers
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