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SSSSS [86.1K]
3 years ago
13

Jenny started with $5 in her piggy bank and earns an

Mathematics
1 answer:
alina1380 [7]3 years ago
7 0

Answer:

x = 3 days y = $7

Step-by-step explanation:

You might be interested in
XY = 5x, YZ = x, and XY = 25
Scilla [17]

Answer:

x=5

Step-by-step explanation:

XY=5x and 25. Therefore, 5x and 25 have the same value. 5 times 5 is 25 so x=5

6 0
3 years ago
Read 2 more answers
You got paid $343 for 7 hours of work. Find the unit rate.
pshichka [43]

Answer:

$49 / hour

Step-by-step explanation:

343/7 = $49/hour

7 0
3 years ago
Read 2 more answers
PLS HELP<br> Identify the range and domain of the function y=ln(x6).
AlexFokin [52]

The domain is {x ∈ R : x ≠ 0} (where R is the set of all real numbers), since x⁶ is a non-negative number for all real numbers x.

The range is R or the interval (-∞, ∞).

8 0
2 years ago
Add 2x4 - 6x3 + 5x to the difference between 9x3 + 8x2 - 2 and 4x4 - 2x2 + 8x - 5.
DedPeter [7]

Simplify (x3 +  3x2 + 5x – 4) –  (3x3 – 8x2 – 5x + 6)

The first thing I have to do is take that "minus" sign through the parentheses containing the second polynomial. Some students find it helpful to put a "1" in front of the parentheses, to help them keep track of the minus sign.

Here's what the subtraction looks like, when working horizontally:

(x3 + 3x2 + 5x – 4) – (3x3 – 8x2 – 5x + 6)

(x3 + 3x2 + 5x – 4) – 1(3x3 – 8x2 – 5x + 6)

(x3 + 3x2 + 5x – 4) – 1(3x3) – 1 (–8x2) – 1(–5x) – 1(6)

x3 + 3x2 + 5x – 4 – 3x3 + 8x2 + 5x – 6

x3 – 3x3 + 3x2 + 8x2 + 5x + 5x – 4 – 6

–2x3 + 11x2 + 10x –10

And here's what the subtraction looks like, when going vertically:

x

3

−(3x

3

​

 

+3x

2

−8x

2

​

 

+5x

−5x

​

 

−4

+6)

​

​

In the horizontal addition (above), you may have noticed that running the negative through the parentheses changed the sign on each and every term inside those parentheses. The shortcut when working vertically is to not bother writing in the subtaction sign or the parentheses; instead, write the second polynomial in the second row, and then just flip all the signs in that row, "plus" to "minus" and "minus" to "plus".

\

x

3

–3x

3

−2x

3

​

 

+3x

2

+8x

2

+11x

2

​

 

+5x

+5x

+10x

​

 

−4

–6

−10

​

​

Either way, I get the answer:

–2x3 + 11x2 + 10x – 10

4 0
3 years ago
A jewelry store sells necklaces in lengths that vary from 16 inches to 22 inches. Any necklaces outside of this criteria are rej
Art [367]

Answer:

16-22

Step-by-step explanation:

3 0
3 years ago
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