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OLga [1]
3 years ago
12

-2x + 10 +4x=70 (what is X?)

Mathematics
2 answers:
Dovator [93]3 years ago
8 0

Answer:

x = 30

Step-by-step explanation:

-2x + 10 +4x=70

      -10          -10

-2x + 4x = 60

2x = 60

/2      /2

x = 30

Ksenya-84 [330]3 years ago
7 0

Answer:

x=30

Step-by-step explanation:

combine like terms to get

2x+10=70

then subtract 10 from both sides

2x=60

then divide both side by 2

x=30

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Which property is illustrated (m+7.3)+4.1=m+(7.3+4.1)
dlinn [17]
I think it is the Associative Property of Addition.
7 0
3 years ago
The base of a triangle is 2ft The height of the triangle is 15 in what is the area of the triangle in square inches
Yakvenalex [24]

Answer:

Area of a triangle = A = 180in^{2}

Step-by-step explanation:

Given Data:  

height of a triangle = h = 15 in

base of a triangle = b = 2 feet  = 2*12 =24 in

To Find Out:  

Area of a triangle = A = ?  

Formula:  

Area of a triangle = A =  \frac{1}{2} (b*h)

Solution:  

Area of a triangle = A =  \frac{1}{2} (b*h)

Area of a triangle  = A =  \frac{1}{2} (24*15)

Area of a triangle  = A =  \frac{1}{2} (360)

Area of a triangle = A = 180in^{2}

5 0
3 years ago
I would like to know if 1 km is greater or less then 999 m
aleksandrvk [35]
Greater 1 km = 1000 m
so it's greater than 999 m
7 0
3 years ago
Read 2 more answers
G(1)=-5<br> g(2)=3<br> g(n)=g(n-2)+g(n-1)<br> g(3)=?
olga_2 [115]

Answer:

<h2>g(3) = -2</h2>

Step-by-step explanation:

g(1)=-5\\g(2)=3\\g(n)=g(n-2)+g(n-1)\\\\g(3)=?\\\\\text{Put}\ n=3\ \text{to the formula of}\ g(n):\\\\g(3)=g(3-2)+g(3-1)=g(1)+g(2)\\\\\text{Substitute given value of}\ g(1)\ \text{and}\ g(2):\\\\g(3)=-5+3=-2

4 0
3 years ago
If x and y are 2 complementary angles then find the value of y if measure of angle x is 20 degree
schepotkina [342]

Answer:

y=70 degrees

Step-by-step explanation:

If 2 angles are complimentary, they add up to 90 degrees.

x+y=90 degrees

x=20 degrees

y=90-20 degrees

y=70 degrees

If that is wrong, try this. Let's say the questions gives us the fact that x is 20 degrees greater than y.

y=x

Substituting x for y, the equation is x+x+20=90

Since y is x, x would also be y, which is 35. then x+20 would be 55.

So y would be 35.

THE ANSWER WOULD BE <u><em>70 DEGREES</em></u>, BUT IF THAT IS WRONG, DO THE SECOND ONE, WHICH IS 35

6 0
3 years ago
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