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ehidna [41]
3 years ago
11

9 batteries cost 18 dollars what's the rate and unit rate

Mathematics
1 answer:
Vanyuwa [196]3 years ago
8 0
Answer to your question is 2
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Is a/b +b/c rational number<br>​
Anarel [89]

Answer:

Yes.

Step-by-step explanation:

Yes.

Assuming a, b and c are integers (not = 0)

a/b + b/c

= (ac + b^2) / bc   which is a rational number.

3 0
2 years ago
PLEASE HELP ME! TIMED!
erica [24]

Answer:

1.6-5 2.  42 3. 36/66

Step-by-step explanation:

6 0
2 years ago
Please solve this geo problem
Sunny_sXe [5.5K]

Step-by-step answer:

The first step in solving a problem of geometry and trigonometry is to draw a diagram, with all the given information in it.  The attached image does just that.

Here, we have (horizontal) distance of building to the tower is 400'.

We see two right triangles, each with a leg of 400' (horizontal).

The vertical distances are denoted h1 and h2 for the angles of elevation 24 and 20 degrees respectively.

Using the definition of tangent, we have

h1= 400tan24=178.1

h2=400tan20=145.6

The height of the tower is therefore h1+h2=178.1+145.6=323.7 feet

4 0
3 years ago
I NEED HELP!! pleaseee
Veronika [31]

Answer:

<h3>y = 20</h3><h3 />

Step-by-step explanation:

line RPN = 180 = 4y - 10 + 90 + y

180 - 90 + 10= 5y

100 = 5y

y = 100/5

y = 20

4 0
2 years ago
What is 42 decreased by twice some number
harina [27]
Well 42 divided by 2 is 21. than to double check you can do 21 plus 21 equals 42.
5 0
3 years ago
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