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dalvyx [7]
3 years ago
6

Es Double a number is equal to the number decreased by five. Find the number. 10 Submit

Mathematics
1 answer:
ivanzaharov [21]3 years ago
7 0

Answer:

I think the answer is 7.5, because of this equation: 2x-5=10

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Write an equation of a line that is parallel to y = x - 7 and passes through the point (-6, -11).
konstantin123 [22]

Answer:

y = x - 5

Step-by-step explanation:

Comparing the given y = x - 7 to y = mx + b, we see that the slope is +1.

In y = x + b we replace y with -11 and x with -6 to determine the y-intercept, b:

-11 = -6  + b

Then b must be -5, and so the desired new equation is

y = x - 5

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3 years ago
A total of $98,000 is to be​ invested, some in bonds and some in certificates of deposit​ (CDs). If the amount invested in bonds
mamaluj [8]
B= 2000 + CD
98000 = B + CD
substitute b in
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3 years ago
A baker is calculating the charge for two types of cookies. What formula tells the cost, in dollars, if chocolate chip cookies a
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6 0
3 years ago
Rewrite without absolute value for the given conditions: y=|x−5|+|x+5|, if x>5
julia-pushkina [17]

Answer:

y=2x if x>5

Problem:

"Rewrite without absolute value for the given conditions: y=|x−5|+|x+5|, if x>5"

Step-by-step explanation:

Let's figure out when the insides of the absolute values are positive and negative, and then see where the given condition that x>5 fits into that.

|x-5|=x-5 if x-5 is positive or 0,\ge 0.

x-5 \ge 0

Add 5 on both sides:

x \ge 5.

|x-5|=-(x-5) if x-5 is negative or zero, \le 0.

x-5 \le 0

Add 5 on both sides:

x \le 5

Since x>5 then we will choose |x-5|=x-5.

---

|x+5|=x+5 if x+5 is positive or 0,\ge 0.

x+5 \ge 0

Subtract 5 on both sides:

x \ge -5.

|x+5|=-(x+5) if x+5 is negative or zero, \le 0.

x+5 \le 0

Subtract 5 on both sides:

x \le -5

Since x>5 then we will choose |x+5|=x+5.

--

y=|x−5|+|x+5| with x>5:

y=(x-5)+(x+5)

y=(x+x)+(-5+5)

y=(2x)+(0)

y=2x+0

y=2x

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In an isosceles triangle, there are two base angles and 2 sides that are congruent.  The other congruent side and base have a 75 degree angle.
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