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3 years ago

Please help me, I don’t understand how I keep getting it wrong!

Mathematics

1 answer:

GenaCL600 [577]3 years ago

6 0

9514 1404 393

Answer:

1.2 t/m³

Step-by-step explanation:

1 tonne is 1 Mg = 10⁶ g

1 m³ is (100 cm)³ = 10⁶ cm³

The conversion is ...

(1.2 g/cm³) · (1 t)/(10⁶ g) · (10⁶ cm³)/(1 m³)

= 1.2(10⁶)/(10⁶) t/m³

= 1.2 t/m³

For this conversion, the numerical value does not change. Megagrams per cubic meter is the same ratio as grams per cubic centimeter.

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98, 78, 84, 75, 91 What is the mean absolute deviation of his scores?

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Answer:

85.2

Step-by-step explanation:

you add all the numbers together then you divide it by 5 then you have your answer.

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3 years ago

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Katen [24]

Answer:

Step-by-step explanation:

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3 years ago

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Two regular pentagons have areas of 20 mm² and x² - x mm². What values of x make the pentagons congruent?

Aleksandr-060686 [28]

Answer

5 and -4

Explanation

If the two triangle are congruent then they have the same area.

20 = x² - x

x² - x - 20 = 0

x² - x + (1/2)² = 20 + (1/2)²

(x - 1/2)² = 20.25

x - 1/2 = √20.25

x - 1/2 = 4.5 or x - 1/2 = - 4.5

x = 4 1/2 + 1/2 x = -4 1/2 + 1/2

= 5 = -4

The values of x are 5 and -4.

8 0

3 years ago

A box of 8 snack bars costs $24.72. A single snack bar costs $3.47. What is the savings on each snack bar if you buy a box of 8

sweet [91]

You would save $3.04

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3 years ago

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How do you solve this type of problem?

Aleonysh [2.5K]

The price of ticket last year is $ 1231.65

Solution:

Given that,

This year, Sophia paid $1,071 for season tickets to her favorite baseball team , which is 15% cheaper than last year

To find: Price of season ticket last year

Let the price of season ticket last year be "x"

Therefore, according to question

Price of ticket this year is 15 % cheaper than price of ticket last year

1071 = price of ticket last year - 15 % of 1071

1071 = x - 15 % of 1071

Solve the above expression for "x"

$1071 = x - 15 \% \times 1071\\\\1071 = x - \frac{15}{100} \times 1071\\\\1071 = x - 0.15 \times 1071\\\\1071 = x - 160.65\\\\x = 1071 + 160.65\\\\x = 1231.65$

Thus price of ticket last year is $ 1231.65

8 0

3 years ago