3 years ago

Kevin is currently twice as old now as his brother. If Kevin was 8 years old 2 years ago, how old is Kevin's brother now?

Mathematics

1 answer:

I am Lyosha [343]3 years ago

6 0

Kevin's little brother is 5 years old

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The train to Sun City travels 150 miles per hour. How long will a trip take if Sun City is 525 miles away?

Vinvika [58]

525 divided by 150 is 3.5

3.5= 3 hours and 30 mins

answer is b

8 0

3 years ago

A number was subtracted from 15. After which, that result was multiplied by 5. This result was then divided by 5 for a result of

likoan [24]

Answer:

Step-by-step explanation:

15-14 = 1

1*5=5

5/1=1

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3 years ago

When Royal looked out at the Walmart parking lot, he noticed that for every 1 Lamborghini, there were 5 other types of vehicles.

Rufina [12.5K]

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i dint understand it is this for school?

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3 years ago

Find the area of a plane figure bounded by lines

natulia [17]

Answer: 4.5

<u>Step-by-step explanation:</u>

First, find the points of intersection by solving the system.

y = x² + 2x + 4

y = x + 6

Solve by substitution:

x² + 2x + 4 = x + 6 ⇒ x² + x - 2 = 0 ⇒ (x + 2)(x - 1) = 0 ⇒ x = -2, x = 1

Now, integrate from x = -2 to x = 1

$\int\limits^1_2 {(x+6)-(x^{2}+2x+4) } \,$ <em>the bottom of the integral is -2 </em>

= $\int\limits^1_2 {x+6-x^{2}-2x-4 } \,$

= $\int\limits^1_2 {-x^{2}-x+2 } \,$

= $\frac{-x^{3}}{3} - \frac{x^{2}}{2}+2x\int\limits^1_2 {} \,$

= $(\frac{-1^{3}}{3} - \frac{1^{2}}{2}+2(1)) - (\frac{-(-2)^{3}}{3} - \frac{(-2)^{2}}{2}+2(-2))$

= $(\frac{-1}{3} - \frac{1}{2} +2) - (\frac{8}{3} -\frac{4}{2} -4)$

= $\frac{-9}{3} + \frac{3}{2} +6$

= -3 + 1.5 + 6

= 4.5

3 0

3 years ago

Enter the value that makes the given equation true. Y+396.23 =574.54

Levart [38]

574.54-396.23= 178.31
So Y=178.31

8 0

3 years ago