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2 years ago

ForFind The average speed when a car travels130 miles in 2 12 hours?

Mathematics

1 answer:

Schach [20]2 years ago

3 0

Answer:

Average speed=52 miles per hour

Step-by-step explanation:

The expression for calculating the average speed is as follows;

S=D/T

where;

S=average speed

D=distance traveled

T=time taken

In our case;

S=unknown

D=130 miles

T=2 1/2 hours=2.5 hours

replacing;

Average speed=130/2.5=52 miles per hour

Average speed=52 miles per hour

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Fittoniya [83]

Answer:

There is 1 possible combination

Step-by-step explanation:

There are 5 assignments and they must be completed. 5. We want to find the number of combinations, then we use the formula of combinations.

$nCr =\frac{n!}{r!(n-r)!}$

Where n is the total number of objects and you choose r from them

Then

$n= 5\\\\r = 5$

$5C5 =\frac{5!}{5!(5-5)!}$

$5C5 =\frac{5!}{5!(0)!}$

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2 years ago

What the value of the expression? (11 - 4) x (6 + 5)

Darya [45]

(11 - 4) (6 + 5) =
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2 years ago

Read 2 more answers

What is the total surface area of a cuboid whose dimensions are 12cm x 8cm x 3cm?

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Answer:

288cm

Step-by-step explanation:

8x3x12=

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2 years ago

Y = (x²+3)(2x-6)<br> What is the derivative?

ahrayia [7]

Answer:

y = (x²+3)(2x-6)

dy/dx=d(x²+3)(2x-6)/dt=(x²+3)d(2x-6)/dt+(2x-6)d(x²+3)/dt= (x²+3)(2)+(2x-6)(2x)=2x²+6+4x²-12x=6x²-12x+6=6(x²-2x+1)

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2 years ago

Seven less than negative two times a number is greater than or equal to 41

kotegsom [21]

$Solution, -2n-7\ge \:41\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:x\le \:-24\:\\ \:\mathrm{Interval\:Notation:}&\:(-\infty \:,\:-24]\end{bmatrix}$

$Steps:$

$\mathrm{Add\:}7\mathrm{\:to\:both\:sides}, -2n-7+7\ge \:41+7$

$\mathrm{Simplify}, -2n\ge \:48\\\\$

$\mathrm{Multiply\:both\:sides\:by\:-1\:\left(reverse\:the\:inequality\right)}, \left(-2n\right)\left(-1\right)\le \:48\left(-1\right)$

$\mathrm{Simplify}, 2n\le \:-48$

$\mathrm{Divide\:both\:sides\:by\:}2, \frac{2n}{2}\le \frac{-48}{2}$

$\mathrm{Simplify}, n\le \:-24$

The correct answer is $n\le \:-24$

I hope this helps!!!

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3 years ago

ForFind The average speed when a car travels130 miles in 2 12 hours? ​

ForFind The average speed when a car travels130 miles in 2 12 hours?