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Ronch [10]
4 years ago
8

$2.99 toy ; 30% discount

Mathematics
1 answer:
Setler79 [48]4 years ago
5 0
If a toy that costs $2.99 is at a 30% discount then you first need to make 30% a decimal.

30% = .3

Now multiply $2.99 by .3 to find the discount which is .897

Since .897 has a thousandths place we need to round that which would make it 90 cents.

Now we know there is a 90 cent discount on a $2.99 toy.

take $2.99 - 90 cents = $2.09

The toy costs $2.09 after a 30% discount
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This table shows the scores that Jack had on his last five science tests.
arlik [135]

Answer:

the answer is B the mean can't be greater than the median

8 0
2 years ago
The birthday candle has the form of a cylinder and cone together, if its has a common radius of 5 mm. The height of cylinder is
alexandr402 [8]

Answer:

1779.33 mm³

Step-by-step explanation:

We are given a candle in a form of a cylinder and a cone

Dimensions;

Common radius is 5 mm

Height of the cylinder is 20 mm

Height of the cone is 8 mm

We are required to determine the amount that it can hold.

To answer the question we are going to determine its volume

Cylinder;

Volume of a cylinder is given by;

V = πr²H

Taking π to be 3.14

Then ;

Volume of cylinder = 3.14 × 5mm² × 20 mm

                                = 1570 mm³

Cone

Volume of a cone is given by;

V = 1/3πr²H

That is;

Volume =1/3 × 3.14 × 5mm² × 8 mm

            = 209.33 mm³

Therefore;

Volume of the solid = 1570 mm³ + 209.33 mm³

                                 = 1779.33 mm³

Thus, the volume of the solid is 1779.33 mm³

7 0
3 years ago
The difference between twice a number and three is equal to six decreased by the number find the number
devlian [24]
Translate the English to Math language:

Let x be that number


2x -3 = x-6 solve for x ; x=-3
5 0
3 years ago
F(x) = 10 – **.<br> )<br> What are the intercepts
rosijanka [135]

Answer:

()=10

Step-by-step explanation:

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2 years ago
According to the US Census, the percent of residents aged 65 or older in the 50 states and District of Columbia has mean 13.26%
Over [174]

Answer:

z = -2.13

The standardized score for the state of Colorado is negative and this means the score is smaller than the mean.

Step-by-step explanation:

The above question can be solved using z score.

The formula for z score is given as:

z = (x-μ)/σ,

where

x is the raw score = 9.7%

μ is the population mean = 13.26%

σ is the population standard deviation = 1.67%

z = z score or standardize score

Hence,

z = 9.7 - 13.26/1.67

z = -2.13174

Approximately z = -2.13

Therefore, the standardized z score for the state of Colorado is negative and this indicates that the score is below or smaller than the mean.

5 0
3 years ago
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