If x= 345 and y = 23 then what is the value of z times x and y

Answers

Answer 1
Answer: If you meant z times x=y it would be a negative.

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A board is 24 in. long. find all the whole number lengths into which it can be evenly divided.
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Find all solutions for X and check. (different from the other question I asked earlier) thanks!
Is 80 a multiple of 4?

Last year 3684 people went to a music festival. The number of people who went to the festival
this year was 2/3of last year’s figure.
How many people went to the festival this year?
A 1228
B 2442
C. 2456
D. 5526

Answers

2/3 of 3,684 people = 2,456 souls

That number appears to be the same as
the one that appears in Choice-'C'.

Of 40% of the selling price of a $65 sweater is profit,then how many dollers profit does the store make when the sweater is sold

Answers

If 40% of the price is profit, then our answer will be 40% of $65.

40% x $65 = 0.4 x $65 = $26

The store profits $26

Solve for y.
8^3-3y=256^4y

Answers

8^(3-3y)=256^(4y)\n\n(2^3)^(3-3y)=(2^8)^(4y)\n\n2^(3(3-3y))=2^(8\cdot4y)\n\n2^(9-9y)=2^(32y)\iff9-9y=32y\n\n-9y-32y=-9\n-41y=-9\ \ \ \ /:(-41)\n\ny=(9)/(41)

Help find 50% of 2/3 of 0.12 and write the answer as a decimal

Answers

0.04
Think of it as 12 divided by 3. Which equals 4. 2/3 of 0.12 so 2 times 4 equals 8. In conclusion you must split it in half which is half of 8  which is 4. So your final answer is 0.04

Tom and some friends went to a movie. The show started at 2:30 P.M. and ended at 4:15 P.M. How long did the movie last?

Answers

the movie would be 1 hour 45 minutes long

Some of the children at a school arrive by car.30% of the children at the school are boys
60% of the boys at the school arrive by car
80% of the girls at the school arrive by car
what is the probability that a child chosen at random from the school arrives by car? give your answer as a decimal

Answers

Answer:

  • 74%

Explanation:

You can build a two-way relative frequency table to represent the data:

These are the columns and rows:

               Car         No car      Total

Boys

Girl

Total

Fill the table

  • 30% of the children at the school are boys

             Car         No car      Total

Boys                                       30%

Girl

Total

  • 60% of the boys at the school arrive by car

That is 60% of 30% = 0.6 × 30% = 18%

             Car         No car      Total

Boys      18%                         30%

Girls

Total

By difference you can fill the cell of Boy and No car: 30% - 18% = 12%

             Car         No car      Total

Boy       18%           12%         30%

Girl

Total

Also, you know that the grand total is 100%

             Car         No car      Total

Boy       18%           12%         30%

Girl

Total                                     100%

By difference you fill the total of Girls: 100% - 30% = 70%

             Car         No car      Total

Boy       18%           12%         30%

Girl                                         70%

Total                                     100%

  • 80% of the girls at the school arrive by car

That is 80% of  70% = 0.8 × 70% = 56%

             Car         No car      Total

Boy       18%           12%         30%

Girl       56%                         70%

Total                                     100%

Now you can finish filling in the whole table calculating the differences:

             Car         No car      Total

Boy       18%           12%         30%

Girl        56%         14%         70%

Total     74%          26%      100%

Having the table completed you can find any relevant probability.

The probability that a child chosen at random from the school arrives by car is the total of the column Car: 74%.

That is because that column represents the percent of boys and girls that that  arrive by car: 18% of the boys, 56% of the girls, and 74% of all the the children.

Answer: 0.74

Step-by-step explanation: