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3 years ago

A remote control car moves at a constant rate of 600 yards in 6 minutes. How many feet can the car go in 20 seconds?

Mathematics

2 answers:

klio [65]3 years ago

6 0

Answer:

20 feet

Step-by-step explanation:

Galina-37 [17]3 years ago

4 0

30 feet. Sorry if im wrong
Good luck:)

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Which algebraic expression represents the perimeter of the rectangle?<br> 2x + 2<br> 4x + 3

Lapatulllka [165]

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3 years ago

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Arlecino [84]

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2 years ago

Evaluate the expression 15x + 4 for x = -1 1/2

olga_2 [115]

Answer:

18.5

Step-by-step explanation:

First we plug in the number

-1 1/2 is the same as -1.5

Plugging this in we will have:

15(-1.5) + 4 =

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2 years ago

In an airplane 35% of the passengers are children they’re 140 children on the airplane how many passengers are on the airplane

Angelina_Jolie [31]

Answer:

there are 49 passengers

Step-by-step explanation: 35%=0.35

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2 years ago

What is the total surface area

Stels [109]

We have two right triangles and three different rectangles.

The formula of an area of a right triangle:

$A_T=\dfrac{1}{2}l_1l_2$

l₁, l₂ - legs

We have l₁ = 20cm and l₂ = 21cm. Substitute:

$A_T=\dfrac{1}{2}(20)(21)=(10)(21)=210\ cm^2$

The formula of an area of a rectangle:

$A_R=lw$

l - length

w - width

We have:

rectangle #1: l = 22cm, w = 29cm

$A_{R1}=(22)(29)=638\ cm^2$

rectangle #2: l = 22cm, w = 21cm

$A_{R2}=(22)(21)=462\ cm^2$

rectangle #3: l = 22cm, w = 20cm

$A_{R3}=(22)(20)=440\ cm^2$

The total Surface Area of the triangular prism:

$S.A.=2A_T+A_{R1}+A_{R2}+A_{R3}\\\\S.A.=2\cdot210+638+462+440=1960\ cm^2$

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3 years ago