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Taya2010 [7]
3 years ago
8

I got 25 so I wanted to know if I'm correct

Mathematics
2 answers:
IgorC [24]3 years ago
6 0
Wrong correct answer is 55
kvasek [131]3 years ago
3 0
I feel it should be 30 because x represents the number of lessons, and 30 is multiplied by that.
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Can you break down how this equation was solved?
dolphi86 [110]
Yes! Let me help you!

Here is the original equation, lets solve this step-by-step

(x + 2)/4 = 5

Now, lets find out how. 

We must apply the inverse operation. 

4/2 is the reciprocal, so lets multiply that to both sides. 

4/2 = 2
5*4 = 20

4x + 8 = 20
      -8      -8            Subtract 8 from both sides. (Inverse operation) 

4x = 12
4x/4  = 12/4             Divide 4 by both sides (Inverse)

x = 12/4
x = 3           Simplified

Answer:  x = 3
3 0
3 years ago
Read 2 more answers
What is 635,974 rounded to the nearest ten thousand
Dafna1 [17]

Answer:

640,000

Step-by-step explanation:

You go to your ten thousands place

what kind of number do you see ?Anumber higher or lower than 5?

Since its higher than a five you round up the 3 to a four.

Which gives you 640,000

3 0
3 years ago
How many solutions are there to x - 2 = 5? How many solutions are there to x - 2 > 5? Explain, use complete sentences. ( 30 P
Sedbober [7]
There is only one solution on the first one since you can't get 5 any other time then it being 7.

on the other one all real numbers above 7 are answers since after x is 7 it will be greater the. 5 always.
8 0
3 years ago
Read 2 more answers
The hypotenuse of a right triangle measures 13cm and one of its legs
hoa [83]

Answer:

6.9

Step-by-step explanation:

Use the Pythagorean theorem :

a^2 + b^2 = c^2

so,

11^2 + b^2 = 13^2

121 + b^2 = 169

b^2= 48

b = 6.928

Round to the tenth : 6.9

8 0
2 years ago
Find the value of cos C rounded to the nearest hundredth, if necessary
Sindrei [870]

\bold{\frac{5}{13} or 0.38}

Answer:

Solution given:

here

by using Pythagoras law

hypotenuse =

\displaystyle\sqrt{adjacent ²+opposite ²}\\=\sqrt{15²+36²}=39

Cos C=\frac{adjacent} {hypotenuse}=\frac{15}{39}=\frac{5}{13} or{0.38}

6 0
2 years ago
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