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Xelga [282]
4 years ago
8

Which number produces a rational number when add by 0.4

Mathematics
1 answer:
Olegator [25]4 years ago
8 0

0.4 is a rational number when expressed as 4/10 or 2/5

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Tyler believes that an 8-sided die can be used to predict whether customers at his store will use a coupon when making their pur
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"1 indicating a coupon and all other outcomes indicating no coupon"
Probability is (number of successful outcomes) / (number of possible outcomes)

Theoretical Probability of rolling a 1: 1/8 

Experimental Probability of using coupons: 4/48  =  1/12

So, the experimental probability of a customer using a coupon (that is, 1/12) is smaller than the theoretical probability of rolling a 1 (that is, 1/8).
8 0
3 years ago
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ASAP Help! Season’s junior high school is celebrating its centennial anniversary. When the school first opened, a tree that meas
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We have been given that a tree that measured 3\frac{3}{4} feet tall was planted. A hundred years later, the tree is now 25\frac{1}{2} feet tall. We are asked to find the number of times times is tree now taller than it was when the school first opened.

To solve our given problem, we will divide present length of tree by length of tree when it was planted as:

25\frac{1}{2}\div 3\frac{3}{4}

First of all we will convert mixed fractions into improper fractions.

25\frac{1}{2}\Rightarrow \frac{25\times 2+1}{2}=\frac{50+1}{2}=\frac{51}{2}

3\frac{3}{4}\Rightarrow \frac{3\times 4+3}{4}=\frac{12+3}{4}=\frac{15}{4}

\frac{51}{2}\div \frac{15}{4}

Now we will convert our division problem into multiplication problem by flipping the 2nd fraction as:

\frac{51}{2}\times \frac{4}{15}

Cancel out common factors:

\frac{17}{1}\times \frac{2}{5}

\frac{17\times 2}{1\times 5}

\frac{34}{5}=6\frac{4}{5}

Therefore, the tree is 6\frac{4}{5} is taller now than it was when the school first opened and option A is the correct choice.

8 0
3 years ago
Using Algebra tiles, show a model of 3x.​
jenyasd209 [6]

its the first option.

tiles of X and tiles of 1 are different

3 tiles of "X" = 3X

3 tiles of " 1 " = 3

option 3 does not mean 3X, it just means 3X + 3

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3 years ago
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First one is C second one is D. In the first one, the line is between 0 and 240 and in the second one brackets mean a closed point while parentheses mean an open point
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3 years ago
6) When ten people hire a boat for a week the cost per person is £56. Work out the
mafiozo [28]

Answer:

£70

Step-by-step explanation:

There are ten people and each person pays £56 so the total cost will be 10x£56 = £560

The boat will be hired out for the same price (£560) and there are eight people this time, so £560 divided by 8 = £70. This means each person will pay £70.

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