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-Dominant- [34]
3 years ago
11

What is r i 4.5+10r=-6.5 with work pls

Mathematics
1 answer:
Evgen [1.6K]3 years ago
8 0

Answer:

-11/10 or -1.1

Step-by-step explanation:

To start, let's get rid of those pesky decimals by multiplying everything by 2. Then we get 9 + 20r = -13. Now, let's isolate the r by subtracting 9 from both sides to get 20r = -22. Finally, we need to divide everything by 20 to get r = -11/10 or -1.1.

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9/10_ 78/100<br>greater equal less than​
emmainna [20.7K]

Answer:

9/10 > 78/100

Step-by-step explanation:

9/10 * 10/10 = 90/100

90/100 > 78/100

7 0
3 years ago
Factor 20x2 + 25x – 12x – 15 by grouping. 1. Group terms with common factors. 2. Factor the GCF from each group. 3. Write the po
RUDIKE [14]
<span>Step 1:
</span>
<span> (((22•5x2) + 25x) - 12x) - 15)))

</span>
<span>The first term is, <span> <span>20x2</span> </span> its coefficient is <span> 20 </span>.
The middle term is, <span> +13x </span> its coefficient is <span> 13 </span>.
The last term, "the constant", is <span> -15



</span></span>
<span>step 2 above,  -12  and  25 
                     <span>20x2 - 12x</span> + 25x - 15

Step-4 : Add up the first 2 terms, pulling out like factors :
                    4x • (5x-3)
              Add up the last 2 terms, pulling out common factors :
                    5 • (5x-3)
Step-5 : Add up the four terms of step 4 :
                    (4x+5)  •  (5x-3)
             Which is the desired factorization</span>Final result :<span> (5x - 3) • (4x + 5) </span>
5 0
3 years ago
Read 2 more answers
ILL BRAINLIEST YOU PLEASE HELP ME
astra-53 [7]

Answer:

a) 5.6

Step-by-step explanation:

sin 22° = x/15

0.3746 = x/15

x = 5.62

3 0
3 years ago
Pleaseeee help please​
kumpel [21]

Answer: It will be 60m^2

5 0
2 years ago
What is -2+9 (8) (1/2)​
Kisachek [45]

Answer:

28

Step-by-step explanation:

-2+9 (4)=7(4)=28

5 0
2 years ago
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