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nadezda [96]
3 years ago
7

Sum of one-half of a number and 4 is -16. find the number

Mathematics
1 answer:
Lady_Fox [76]3 years ago
5 0
X is the number
sum means add

sum of half a number and 4 means
(x/2)+4
result is -16

(x/2)+4=-16
minus 4 both sides
x/2=-20
times 2 both sides
x=-40
the number is -40
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An angle bisector of a triangle divides the opposite side of the triangle into segments2 cm and 5cm long. The second side of the
RSB [31]

Answer:

  • 3 cm or 18.75 cm

Step-by-step explanation:

Let the third side is x.

<u>According to Triangle-angle-bisector theorem, we have the possible ratios:</u>

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or

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<u>Solve for x in each case:</u>

1)

  • x = 7.5*2/5 = 3 cm

2)

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3 0
2 years ago
Through a point not on a line, one and only one liParallel lines are cut by a transversal such that the alternate interior angle
galina1969 [7]
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5 0
3 years ago
There are 7 roses in a vase of 16 flowers. The rest are daisies.
Greeley [361]

Answer:

(a) 7:9 or 7 to 9 or \frac{7}{9}

(b) 9:16 or 9 to 16 or \frac{9}{16}

Step-by-step explanation:

The first thing you need to figure out is how many daisies are in the vase. There are 9. So the answer to question a is 7 roses to 9 daisies. The answer to question b is 9 daisies to 26 total flowers in the vase.

I wrote #:# or # to # or \frac{#}{#}#/# because these are all of the ways you can write a ration. I wasn't sure which one you needed.

Hope it helps! :)

8 0
3 years ago
Half of a number plus 12 is 46
asambeis [7]
Let the number = x
x/2 + 12 = 46
x/2 = 46 - 12 
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x = 34 * 2
x = 68

So, your final answer is 68

Hope this helps!
4 0
3 years ago
Read 2 more answers
Find the equation of the line with a slope of 2/5 and containing the point (10,6).
Kipish [7]

Use the poin-slope form of the equation of a line:-


y - y1 = m(x - x1) (where m = slope and the point is (x1, y1))


Plugging in the given values:-


y - 6 = 2/5(x - 10)


multiplying through by 5:-


5y - 30 = 2(x - 10)

5y - 30 = 2x - 20

5y = 2x + 10


In standard form the equation is


2x - 5y = -10 (answer)



4 0
3 years ago
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