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2 years ago

Help me plz plz!!!!!!!!!

Mathematics

1 answer:

Tems11 [23]2 years ago

6 0

Answer:

Decimal form:

2.10526315789

Step-by-step explanation:

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The scale on a road map indicates that 2 inches = 30 miles. How many inches would represent 120 miles on this road map?

qwelly [4]

In:mi

2 = 30

x = 120

2/30=x/120

(Cross Multiply)

30x= 240

30x/30=240/30

X=8

8 0

2 years ago

Find the value of x, given cos 0 = 0.4 PLEASE HELP!!!!!! And explain if possible

elena-14-01-66 [18.8K]

Answer:

$x=30$

Step-by-step explanation:

For each right-angled triangle:

$\cos\theta=\frac{cathetus \ adjacent \ \theta}{hypotenuse}$

Because $\cos \theta=0.4, \ \ cathetus\ adjacent \ \theta \ = \ 12, \ \ \ hypotenuse=x$

we have an equation

$0.4=\frac{12}x$

multiplying both sides by x, we get $0.4x=12$

dividing both sides by 0.4 and $x=\frac{12}{0.4}$

using calculator, we divide 12 by 0.4

and finally x=30

8 0

2 years ago

Simplify 2(3-2i)+5(1+i)

Kipish [7]

11+i
that’s the answer hope it helps:)

7 0

3 years ago

24 written as a percentage

Yanka [14]

Any number is equal to that number over 1

So x is equal to x/1

Same thing with 24. 24 = 24/1

To get it into percent we multiply by 100 so:

$\sf{\frac{24}{1}=\frac{24\times100}{1\times100}}$

And simplifying that we get

$\sf{\frac{2400}{100}}$

And x/100 = x%

so 2400/100 = 2400%

So your answer is 2400% :)

5 0

3 years ago

Please help Slove for x

gayaneshka [121]

Answer:

x = 20

Step-by-step explanation:

These angles are consecutive interior angles, so when added they will equal 180 degrees (according to the consecutive interior angles theorem).

3x - 10 + 5x + 30 = 180 add/subtract all like terms

8x + 20 = 180

8x = 160

x = 20 <--- This will be your answer

Hope it helps!

7 0

3 years ago