All categories

2 years ago

My ones digit is twice the hundreds digit

1 answer:

3 0

The hundreds digit is twice as large as the ones digit. 3 doubled is 6, 6 doubled is 12, and 9 doubled is 18. Since 6 is the only option that is one digit, the hundreds digit must be 6 and the ones digit must be 3. The tens digit is five less than the hundreds digit.

You might be interested in

Bob can type 2 letters in 4 hours while Bill can do it in 6 hours. How many hours would it take them to type six letters togethe

jek_recluse [69]

Answer:

Bill makes 1 in 3 hours and if he wanted to make 6 than it would take 18 hours and Bob makes 1 in 2 hours if he wanted to make 6 than it would take 12 hours

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Problem 5

lutik1710 [3]

Answer:

The answer is 15.

Step-by-step explanation:

4 0

2 years ago

2. The beam of a lighthouse can be seen for up to 20 miles. You are on a ship that is 10 miles east and 16 miles north of the li

Oksanka [162]

Answer:

<em>The person on the ship can see the lighthouse </em>

Step-by-step explanation:

<u>The Circle Function </u>

A circle centered in the point (h,k) with a radius r can be written as the equation

$(x-h)^2+(y-k)^2=r^2$

Any point (x,y) can be known if it's inside of the circle if

$(x-h)^2+(y-k)^2\leq r^2$

The question is about a beam of a lighthouse than can be seen for up to 20 miles. If we assume the lighthouse is emitting the beam as the shape of a circle centered in (0,0), then its radius is 20 miles. Thus any person riding a ship inside the circle can see the lighthouse. This means that

$x^2+y^2\leq 20^2$

$x^2+y^2\leq 400$

The ship's coordinates respect to the lighthouse are (10,16). We should test the point to verify if the above inequality stands

$10^2+16^2\leq 400$

$356 \leq 400$

The inequality is true, so the person on the ship can see the lighthouse

5 0

3 years ago

Solve for x: the quantity of x plus 4 all over 2 = 7.

Genrish500 [490]

X = 10

X+4/2=7
multiply both sides by 2
X+4=14
subtract 4 from both sides
x=10

3 0

3 years ago

This system has one solution. {y=6x−11 y=x2+4x−10 What is the y-coordinate of the solution? Enter your answer in the box. y =

zhannawk [14.2K]

Y=6x−11 y=x²+4x−10
6x−11=x²+4x−10
6x-11-x-4x+10=0
2x-1-x²=0
-(1-2x+x²)=0
-(1-x)2=0
1-x=0
x=1
Plug x into 6x -11=x²+4x-10
6x-11=x²+4x-10
6(1)-11=(1)²+4(1)-10
6-11=1+4-10
-5 = -5

y= -5

7 0

2 years ago