Please help me with this! <3

Answers

Answer 1

Answer:

Think of x(symbol)y as a function like f(x)=3x-y. Since the first symbol we see is in parenthesis, we know that x=-1 and y=-2. Plug that into f(x), and you get 3(-1)-(-2)=-1. So know we have the x value for the second symbol, which is -1, and the y value, which is seen to the right: (-3). Plug that back into f(x), and you get 3(-1)-(-3)= 0. Your answer should be A: 0.

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What is 245.3 divided by 5=?

Answers

To do this without a calculator:

5 goes into 2 0 times.
5 goes into 24 4 times with a remainder of 4.
5 goes into 45 9 times
5 goes into 3 0 times
5 goes into 30 6 times

the answer is 49.06

look up long division for more info
049.06
5 ) 245.3
20
45
45
030
30

49.06
5 ) 245.30
-20
45
-45
03
30
-30
0

When you divide into a decimal, just ignore the decimal point doing your work at the bottom. If you run out of decimal places, just add a 0 to the end.

5 doesn't go into 2, so skip to the next part.
5 goes into 24 a total of 4 times.
4 times 5 is 20. 24 minus 20 is 4. Bring down the 5.
5 goes into 45 a total of 9 times.
9 times 5 is 45. 45 minus 45 is 0. Bring down the 3.
Bring up the decimal point.
5 doesn't go into 3, so put up a 0.
0 times 5 is 0. 3 minus 0 is 3. Add a zero to the end and bring it down.
5 goes into 30 a total of 6 times.
6 times 5 is 30. 30 minus 30 is 0. We're done!

Your answer is 49.06.

A farmer grew a watermelon that weighed 20 lb. From his experience with growing watermelons, he estimated that 95% of the watermelon’s weight is water. How much of the watermelon is water?

Answers

The water is 95% of the total weight of watermelon. Multiply 95% by the total weight to get the weight of the water.
water = 95% × 20
water = 0.95 × 20
water = 19

The weight of the water is 19 lbs

Answer:

19 lb

Step-by-step explanation:

Find the equation of the line perpendicular to the line y=4x+5, passing through the point (0,-3)

Answers

Answer:

y=-0.25x-3

Step-by-step explanation:

-3=-1/4*0+b

b=-3

Explain why 30÷x = 6 is the same as 30 - x-x-x-x-x-x=0. what is the value of x in this example?

Answers

The value of x would be 5. Because if you divide 30 by the answer of 6 you get 5.
And to check: 6 multiplied by 5 equals 30
~hope this helped :)

The value of x would be 5 because 30 divided by 5 is 6.

PLZ ANSWER!!!!!! choose the answer. subtract. express your answer in simplest form.

8/10 - 3/5 =

A. 1/5

B. 5/5

C. 2/10

D. 4/5

Answers

$\n(8)/(10) - (3)/(5) = (8)/(10) - (6)/(10) = (2)/(10) = (1)/(5) \n$
A

you can simplify 8/10 to 4/5 by dividing by two on the top and bottom so the answer is A 1/5 because 4/5 - 3/5= 1/5 I hope that helps :)

Write an expression that can be used to multiply 6 x 198 mentally? please answer thanks!

Answers

-6 x 2 + 6 x 200. Since you want to find out 6 multiplied by 198 the easiest way (for me) would be to round it and then substract 12 since 200-198 is equal to 2 and 6 x 2 is equal to 12

Assuming you meant 6 x 198... Do a mental sum for 6 x 200 (1200) then subtract 6

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Which system of equations can be used to solve the following problem? Each child ticket for a ride costs $2, while each adult ticket costs $6. If the ride collected a total of $148, and 38 tickets were sold, how many of each type of ticket were sold? Let c be the number of child tickets and a be the number of adult tickets. A. Equation set including begin equation begin product of two and c end product plus begin product of six and a end product equals thirty-eight end equation. Begin equation a plus c equals one hundred and forty-eight end equation. B. Equation set including begin equation begin product of two and a end product plus begin product of six and c end product equals thirty eight end equation. Begin equation a plus c equals one hundred and forty-eight end equation. C. Equation set including begin equation begin product of six and c end product plus begin product of two and a end product equals one hundred and forty-eight end equation. Begin equation c plus a equals thirty-eight end equation. D. Equation set including begin equation begin product of two and c end product plus begin product of six and a end product equals one hundred and forty-eight end equation. Begin equation a plus c equals thirty-eight end equation.

Quick problem to check!

What is the simplified expression for the perimeter of the triangle with the length 5x -7, 3x-4, and 2x-6