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3 years ago

Karst topography forms in regions, where bedrock that is easily dissolved by ______ groundwater (SCIENCE)

Mathematics

1 answer:

Dahasolnce [82]3 years ago

7 0

Answer:

Neutral
Why because

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Manny wants to cover the windows in his home with either wood blinds or curtains. He has 35 windows that he would like to cover,

stepladder [879]

Answer:

$x + y \leq 35\\\\100x + 60y\leq2100\\\\x\geq 0\\\\y\geq 0$

Step-by-step explanation:

Call x the amount of blinds that Manny buys.

Let's call and the amount of curtains that Manny buys

There are only 35 windows, so the number of curtains and windows can not be greater than 35.

$x + y \leq 35\\x\geq 0\\y\geq 0$

Manny can only spend $ 2100

Then we can represent this by an inequality in the following way.

$100x \leq 2100$

and

$60y\leq 2100$

We can write this as a single inequality:

$100x +60y \leq2100$

Finally, the set of inequalities to model this problem is:

$x + y \leq 35\\\\100x + 60y\leq2100\\\\x\geq 0\\\\y\geq 0$

5 0

4 years ago

Caleb surveyed students in his high school and ask them to name their favorite kind of music. The results are shown.

Elanso [62]

Answer:

<u>Option A. 0,1,2,3,4</u>

Step-by-step explanation:

The rest of the question is the results of survey, the results is as following:

Rock 50%

Country 30%

Hiphop 10%

Classical 10%

<u>Solution:</u>

Caleb signs the numbers zero through nine to the music category and uses a random number generator on his calculator.

So, the number of digits from 0 to 9 = 10

Since 50% represents the number of students interested in Rock, So, he want to have 50% of the digits to represent Rock.

50% of 10 numbers is 5 numbers.

So, The option which has 5 digits is option A. 0,1,2,3,4

7 0

4 years ago

Write an equation and solve: At Trader Joes, Mrs.

natita [175]

6.94-4.99= 1.95

Take the 1.95 divid by the 0.65 per pound and she bought 3 pounds

3 0

3 years ago

Solve each equation. Showing your reasoning. X^2-6x-20=7

scoundrel [369]

Answer:

x=-3,x=9

Step-by-step explanation:

x^2-6x-20-7=0

x^2-6x-27=0

x^2-(9-3)x-27=0

x^2-9x+3x-27=0

x(x-9)+3(x-9)=0

(x+3)(x-9)=0

x=-3,x=9

4 0

3 years ago

A women made a deposit of $196.If her deposit considered of 60 bills, some of them one-dollar bills and the rest being five-doll

raketka [301]

Answer: 26 pieces of $1 bill and 34 pieces of $5 bill

Total Deposit = $196
Total Bills = 60 pieces
Value of $1 = $1
Value of $5 = $5

Lets assume all the 60 pieces were $1 bill.
The total deposit will be 60 x $1 = $60

But we know that the total deposit is $196. So the extra value must have come from the $5.

$196 - $60 = $136
There is still an outstanding amount of $136 not accounted for.

$5 - $1 = $4
The difference in the two bills is $4

Now we can find out the number of $5 bill by dividing the extra $136 by 4:
136 ÷ 4 = 34 pieces

There are 34 pieces of $5 bill.

Since there are 34 pieces of $5, the rest must be the $1 bill
60 - 34 = 26

There are 26 pieces of $1 bill.

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Answer: 26 pieces of $1 bill and 34 pieces of $5 bill.
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7 0

3 years ago