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2 years ago

Find the value of the expression if x=9 and y=1 Xy^2/-5

Mathematics

1 answer:

lesantik [10]2 years ago

3 0

Answer:

-9/5

Step-by-step explanation:

Xy^2/-5 becomes (9)(1^2) / (-5) when x = 9 and y = 1.

This simplifies to -9/5

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John left school with 8.43 he found a quarter on his way home and then stopped to buy an Apple for 0.89 . how much money did he

larisa [96]

Answer:

7.79

Step-by-step explanation:

8 0

2 years ago

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Eric has 183 coins all of them are nickels and dimes. If the total value of the coins is 14.45, how many of each denomination co

FromTheMoon [43]

Answer:

77 nickels

106 dimes

Step-by-step explanation:

Let there be n nickes and d dimes

Since there are 183 coins, we can write:

n + d = 183

Also, the value of nickel is 0.05 and dime is 0.1, total value is 14.45, so we can write:

0.05n + 0.1d = 14.45

Solving 1st equation for n, we have:

n = 183 - d

Putting this into 2nd equation and solving for d:

$0.05n + 0.1d = 14.45\\0.05(183-d) + 0.1d = 14.45\\9.15-0.05d+0.1d=14.45\\0.05d=5.3\\d=106$

There are 106 dimes

Since, n = 183 - d

n = 183 - 106

n = 77

There are 77 nickels

4 0

2 years ago

Dan needs to buy tomatoes to put on 30 Turkey sandwiches if the slices of one tomatoe can go on 4 sandwiches how many tomatoes s

Ipatiy [6.2K]

Dan should buy 8 tomatoes because then he can make 32 slices which is more than enough to put on the sandwiches.

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2 years ago

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88511, 16351, ?, 10251 missing number in sequence

Mrac [35]

Step-by-step explanation:

this is really complicated and tricky.

to create the next number, you have to add the first 2 digits of the previous number, then subtract the 3rd from the 2nd digit, multiply the 3rd and the 4th digit, and finally divide the 4th digit by the 5th.

so,

8+8 = 16

8-5 = 3

5×1 = 5

1/1 = 1

giving 16351 as next number.

the missing number we get then

1+6 = 7

6-3 = 3

3×5 = 15

5/1 = 5

giving 73155 as the next (missing) number.

control :

7+3 = 10

3-1 = 2

1×5 = 5

5/5 = 1

gives us 10251 as next number - correct.

but then it will end

1+0 = 1

0-2 = -2 ???? take the absolute value ?

2×5 = 10

5/1 = 5

8 0

1 year ago

Gerald recorded the gains and losses for each play on the football field. Gains were marked with a + and losses with a –. Play 1

Vedmedyk [2.9K]

Answer:

Play 3

Step-by-step explanation:

Given:

$\left\begin{array}{ccccc}{Play}&{1}&{2}&{3}&{4}&{Yards}&{+4}&{-6}&{-2}&{+3}\end{array}\right$

Required [Missing from the question]:

Determine the play with the least change in yard?

To do this, we ignore the sign in front of each yard before we analyze.

So, we have:

Play 1 has a change of 4

Play 2 has 6

Play 3 has 2

Play 4 has 3

<em>From the above analysis, play has the least (which is 2)</em>

4 0

2 years ago