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Bad White [126]
3 years ago
10

Kevin is 3 years older than Daniel. Two years ago, Kevin was 4 times as old as Daniel. How old is Daniel now?

Mathematics
1 answer:
Radda [10]3 years ago
5 0

Answer:

Kevin is 6 years old and Daniel is 3 years old

Step-by-step explanation:

They are now 3 years apart but two years ago, they were 4 and 1 years old, so Kevin was 4 times older than.

Hope this helped :)

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Why did Dante write the Inferno
makkiz [27]

Answer:

he used it as a vehicle to express his political beliefs and take comfort in imagining bad ends for his enemies. However, the poem's main purpose is, to quote Milton, to "justify the ways of G0d to Men."

Step-by-step explanation:

4 0
3 years ago
A 13-ft ladder is leaning against a house. The distance from the bottom of the ladder to the house is 7-ft less than the distanc
Olin [163]

Answer:

12 feet

Step-by-step explanation:

As a  ladder is leaning against a house, it forms right angle triangle. And for right angleΔ, we use Pythagoras theorem.i.e

P²+B²= H²

Where,

'P' is perpendicular i.e the distance  from the top of the ladder to the ground

'B' is base i.e be the distance from the bottom of the ladder to the house

'H' is hypotenuse i.e 13

considering 'x' as perpendicular

So, base would be 'x-7'

Applying Pythagoras theorem,

x² + (x-7)²= 13²

x² +x² -14x +49 =169

2x² -14x -120= 0

x² -7x -60=0 ----> solving the quadratic equation

x² + 5x -12x-60=0

x(x+5) -12(x+5)=0

Either : x+5=0 => x=-5

OR: x-12=0 => x=12

We'll choose the positive length.

therefore , The distance from the bottom of the ladder to the house is 12 feet

6 0
3 years ago
Can somebody help me with this please!!
saul85 [17]

1. -21

2. −39

3.−42

4. -5

5. −3

for the other question u can use calculator :)

8 0
2 years ago
3.4-2.8d+2.8d-1.3 Combine like terms
vovikov84 [41]

Answer:  2.1

Step-by-step explanation:

3.4 - 2.8d + 2.8d - 1.3

add the variables together and the coefficients or add the d's with d's and 3.4 with 1.3

= 3.4 - 1.3 = 2.1

=2.8d - 2.8d = 0

The final answer would be 2.1

7 0
3 years ago
four time the first of three consecutive integers is six more than the product of two and the third integer. find the integers.
maw [93]
<span>
Assign variables : 
Let x = first consecutive even 
Let x + 2 = second consecutive even
Let x + 4 = third consecutive even 
4x = 6 + 2(x+4) 
4x = 6 + 2x + 8 
4x = 2x + 14 
4x - 2x = 14 
so your answer is 7,9and 11</span>
3 0
4 years ago
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