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3 years ago

Jamaal has 20 models of cars and planes. He has 3 times as many cars as planes. What is the ratio of cars to total models?

2 answers:

6 0

Jamaal has 20 models of cars and planes. He has 3 times as many cars as planes. What is the ratio of cars to total models? Mutiply its what 20X20X20

kozerog [31]3 years ago

5 0

So he probably has 15 cars and 5 planes so the ratio would be 15:5 but reduced would be 3:1.

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Solve for x rounding to the nearest hundredth will give to brainlest!!!

Verizon [17]

Answer:

Exact Form:

64/21e

Decimal Form:

1.12115639

Step-by-step explanation:

8 0

2 years ago

PLZ HELP

Alex

Answer:

The correct option is C ) 109.5°

Therefore,

$m\angle E=109.5\°$

Step-by-step explanation:

Given:

In Triangle DEF

d = 10

e = 18

f = 12

To Find

angle E = ?

Solution:

In Triangle DEF , Cosine Rule says

$\cos E=\dfrac{f^{2}+d^{2}-e^{2}}{2fd}$

Substituting the values we get

$\cos E=\dfrac{12^{2}+10^{2}-18^{2}}{2\times 12\times 10}$

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Therefore,

$\angle E=\cos^{-1}(-0.3333)$

$m\angle E=109.5\°$ ............As it is in Second Quadrant

Therefore,

$m\angle E=109.5\°$

4 0

3 years ago

(1 point) Rework problem 15 in section 2 of Chapter 5 of your textbook about the growing suburb and the declining city using the

Vanyuwa [196]

Answer:

16 years

Step-by-step explanation:

Let x represent the number of years. The suburb population is growing at a rate of 5000 per year after x years, it can be represented by the equation:

320000 + 5000x

The city population is declining at a rate of 14000 per year after x years, it can be represented by the equation:

624000 - 14000x

The number of years for the city and suburb population to be equal can be gotten from:

320000 + 5000x = 624000 - 14000x

14000x + 5000x = 624000 - 320000

19000x = 304000

x = 304000 / 19000

x = 16

In 16 years the populations of the suburb and the city be equal

6 0

3 years ago

Give examples of where the cubic decimeter is used around us?

pogonyaev

Answer:

A unit of volume equal to that of a cube having sides each one decimetre in length, equal to 10-3 cubic metres and 1 litre. Commonly used in fluid measure and for engine sizes.

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3 years ago

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Helen [10]

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\\\\\\
5\cdot (15\cdot 8)-15\implies 585$

8 0

3 years ago