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Gwar [14]
3 years ago
8

Someone help me find the answer to this problem. 15a - 20 + 10a =

Mathematics
2 answers:
Oksi-84 [34.3K]3 years ago
7 0

Answer:

5a +20

Step-by-step explanation:

add or subtract the same variables

Alika [10]3 years ago
7 0

Answer:

25a-20

Step-by-step explanation:

Since there is no value after the equal sign, all you can do is combine like terms

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8 times a number is greater than 64
Harlamova29_29 [7]
8n>64
Divide both sides by 8, and you get
n>8
7 0
3 years ago
Which of the points A(−6, 2), B(0, 0), C(4, −2), D(−12, 6), E(−10, 10) belong to the graph of direct variation y=− 1 2 x?
vovangra [49]

ANSWER

B(0, 0),

EXPLANATION

The given points are A(−6, 2), B(0, 0), C(4, −2), D(−12, 6), E(−10, 10).

The equation of the direction variation is

y =  - 12x

The point that belongs the graph of the direct variation must satisfy the variation equation.

Note that the graph of direct variation equation passes through the origin therefore the point (0,0) satisfies it.

0=-12(0)

0=0

This is true

The other points do not satisfy this variation equation, hence they do not lie on its graph

5 0
3 years ago
How many 4 minutes and 30 seconds in 2 hours
AleksAgata [21]

4 minutes and 30 seconds go into 2 hours 26 times

119

7 0
4 years ago
Read 2 more answers
The perimeter of a stop sign has a perimeter of 16x2 - 80x. What is the length of one side?
uranmaximum [27]
Since a stop sign is an octagon it has eight sides.  So the perimeter will be:

p=8x,  p=perimeter and x=side length.  We are told that the perimeter is equal to:

16x^2-80x so we can say:

16x^2-80x=8x subtract 8x from both sides

16x^2-88x=0  factor out 8x

8x(2x-11), since we know x>0

x=11/2

x=5.5 units
7 0
3 years ago
Need An Answer ASAP ... THANK YOU !!!
lozanna [386]

Answer:

∠EFG = 48°

Step-by-step explanation:

As FH bisects ∠EFG , ∠EFH = ∠HFG .

We know that ∠EFH = (-5x + 89)° . So ∠HFG = ∠EFH = (-5x + 89)°

Also, ∠HFG  + ∠EFH = ∠EFG

=> 2(-5x + 89)° = (61 - x)°

=> -10x + 178 = 61 - x

=> 10x - x = 178 - 61

=> 9x = 117

=> x = 117 / 9 = 13

Putting the value of 'x' in ∠EFG gives :-

(61 - x)° = (61 - 13)° = 48°

8 0
4 years ago
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