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krok68 [10]
3 years ago
11

CAN SOMEONE PLEASE HELP ME ASAP PLEASEEEE!!!​

Mathematics
1 answer:
Rom4ik [11]3 years ago
7 0

Answer:

11.4

Step-by-step explanation:

So we know that Triangle ACB is similar to Triangle EFD.

This means that their sides are proportional to each other.

We want to find x or side AB. To do so, we can set up a proportion.

The proportional side to AB is ED. Let's also use BC since we know its value. The proportional side to BC is DF. Thus:

\frac{AB}{ED}=\frac{BC}{DF}

Substitute x for AB, 3.8 for Ed, 15 for BC, and 5 for DF. Thus:

\frac{x}{3.8}=\frac{15}{5}

Reduce the right:

\frac{x}{3.8}=\frac{3}{1}

Cross multiply:

x=11.4

So, the value of x is 11.4

And we're done!

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Please I need this now or I fail my test and I have to be held back!!! What is 4/15 divided by -3/5
Marysya12 [62]

Answer:

-4/9

Step-by-step explanation:

flip -3/5

4×5 / 15×-3

20/-45

÷5 ÷5

-4/9

7 0
3 years ago
So in my math homework lesson today we are learning “Solve One-Step Problems”. I don’t completely understand how to do it. I was
Sedaia [141]

Answer:

Step-by-step explanation:

So, in this problem, we're given the size of the of the file. We are also given the rate of change of the amount-downloaded function.

Notice how the transfer rate is in units of time (25.2 MB/s means 25.2 MB per second).

If we want to calculate how <em>long</em> it'll take to download the entire file, we have to divide the file size by the amount of the MB downloaded in one second. (This is assuming the download rate is constant, in the case it isn't constant, you would use calculus) This will find the total number of seconds needed to download the entire file.

We're essentially solving for t in the equation

400.6 = 25.2t

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7 0
3 years ago
Ex) A nursery plants a new tree and attaches a guy wire to help support the tree
o-na [289]

Answer:

d =   5,35 ft

Step-by-step explanation: See annex

Figure in  annex is clear,  

sin ∠42⁰  = d / 8

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sin ∠42⁰   =  0.669

d/8   =  0,669

d  =  0,669*8  

d =   5,35 ft

8 0
3 years ago
Read 2 more answers
I WILL GIVE BRAINLIEST!!!
MrMuchimi

Answer:

Answer is after 20 miles

Step-by-step explanation:

10 +2.5x = 3x

10 = 3x-2.5x

10=0.5x

10/.5=x

x=20

At 20 miles they both have a cost of 60

4 0
2 years ago
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vazorg [7]
25(1)=25
25+0=25
Those are the only ones that are true
3 0
2 years ago
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