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Ipatiy [6.2K]
3 years ago
12

In the diagram of the park, ADF~ BCF. The crosswalk at point A is about 20 yd long. A bridge across the pond will be built, from

point B to point C. What will the length of the bridge be?
Mathematics
1 answer:
velikii [3]3 years ago
6 0
<span>Since the 2 triangles are similar, their sides are proportional.
You also know AD is 20 yards, since it tells you that is the crosswalk length at A.
So the proportion is :
50 / 120 = 20 / BC
Or
if you flip it over,
120 / 50 = BC / 20
 Then you can solve for BC.
120 / 50 = BC / 20
(20)(120/50) = BC
BC = 48</span>
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Vlad1618 [11]

Answer:

7

Step-by-step explanation:

Firstly, let us divide the two numbers as so-

645/87=7.41379310345\\

To round a number to the nearest integer, look at the decimal places.

Here we have .41 - The 4 is less than 5, so it cannot round the ones place to 8.

So our answer here is 7.

6 0
3 years ago
Identify an equation in slope-intercept form for the line parallel to y=5x+2 that passes through (-6,-1).
Roman55 [17]

Answer:

D

Step-by-step explanation:

gradient for the line y=5x+2 = 5  from y=mx+c where m =gradient

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equation for line passing through point (-6,-1) and gradient , m=5 will be

(change in y/change in x)=M2

(y--1/x--6)=5

y+1/x+6 =5

y+1=5(x+6)

y+1=5x+30

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3 0
3 years ago
A bag of 8 rolls for $1.89 or a bag of 18<br> rolls for $3.79
Delvig [45]

Answer:

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Step-by-step explanation:

when you divide to see how much each one costs the 8 rolls is better

4 0
3 years ago
Read 2 more answers
-2(3x+2) is greater than or equal to -6x-4
olchik [2.2K]
The inequality would look like this:

-2 (3x + 2)\geq-6x-4

To begin to find the solutions, distribute the -2 throughout the set of parenthesis on the left side of the inequality by multiplying the -2 by each term in the set of parenthesis

-2 x 3x = -6x
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-6x -4 \geq-6x-4

Begin to isolate x by performing the opposite operation of adding -6x on both sides of the inequality

0x -4 \geq-4

Next perform the opposite operation by adding 4 on both sides of the inequality

0x \geq 0

Now, I'm not exactly understanding how that can possibly work. So, I guess I didn't really help you. But add a comment so that we can talk about the problem :)
8 0
3 years ago
What is the volume of a sphere with a radius of 3/2 feet?<br> The volume is<br> it ft²
stepladder [879]

Answer:

4.5π ft³ or 14.14 ft³. Volume is a three dimensional unit of measure, meaning the units will be ft³.

Step-by-step explanation:

In order to solve this you need to know the volume formula for a sphere, which is (4/3)(π)(r³) where r is the radius. By plugging the the given value, 3/2, you get the volume to be 4.5π or 14.14 ft³.

3 1
3 years ago
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