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AnnZ [28]
3 years ago
15

Evaluate the expression for the given value of the variable(so).

Mathematics
1 answer:
Ksju [112]3 years ago
4 0
The answer is -30-25 which in turn becomes -55
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May you guys please help me on this one
NNADVOKAT [17]

Answer:

y maximum is at 1 for both the points (4,1) and (-4,1)

Step-by-step explanation:

5 0
2 years ago
Am i doing this right. someone help me.
Sav [38]

Answer:

Hi there!

It looks like to me you are doing this right!

Way to go!

I checked everything you got everything correct.

6 0
3 years ago
You have 59 total coins for a total of 12..05. You only have quarters and dimes. How many of each coin do you have?
vovikov84 [41]

41 quarters and 18 dimes.

6 0
3 years ago
Read 2 more answers
A mixture of 17 %disinfectant solution is to be made from 10% and 20% disinfectant solution. How much of each solution should be
8090 [49]
Since 20 total gallons are needed, the amount of 10% solutions can be x and the amount of 20% solutions can be (20-x) since they add up to 20. In addition, the 17% solution has 20 gallons. Putting this into an equation, we get that 10% is 0.1 (by moving the decimal 2 spots to the left) , 0.2=20%, and 0.17=17%. With that information, we can determine that 10%*x+20%*(20-x)=20*0.17 due to that with 20 gallons of the 27% solution, we need a certain amount of solution. For every gallon, we add 0.17 of the solution, so we have 20*0.17. Similarly, we want that total amount to be represented by the amount of 20% + the amount of 10%.

0.1x+0.2(20-x)=0.1x+4-0.2x=-0.1x+4 using the distributive property
-0.1x+4=20*0.17=3.4. Subtract 4 from both sides to get -0.1x=-0.6, and multiply both sides by -10 (to separate x) to get x=6. Therefore, the amount of 10% solution is 6 gallons and the amount of 20% solution is 20-5=14 gallons
3 0
3 years ago
Creative Logic: Kevin is hiking on the trail and has to cross a rope bridge. He looks down at the raging river below and is sudd
Mashutka [201]

Answer: 40 times

Step-by-step explanation:

Given: Total planks = 20

By using integers, Steps forward is represented by +5, Steps backward s represented by  -4.

After first set of two steps ( one forward another backward), 5-4 =1 step forward is captured.

For 20 planks , we require 20 such sets, i.e. he will do this 2x 20 times i.e. 40 times.

Hence, he will do this 40 times to reach the other side.

5 0
3 years ago
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