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vekshin1
4 years ago
8

I need help with this question

Mathematics
1 answer:
quester [9]4 years ago
3 0

Answer:

2/5-1/4=8/20-5/20=3/20

Step-by-step explanation:

so you would have to multiply the fractions so that they have the same denominator, so multiply 2/5 by 4 to get 8/20 for the first blank. then do the same for the next blank but multiplying by 5 which would make it 5/20. then it equals 3/20 by using normal subtraction of the numerators (hope this is correct im sorry if its not).

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BD is the angle bisector of ZABC.
mojhsa [17]

Answer:

B:25°

Step-by-step explanation:

Now \angle ABC gets bisected by BD.

\angle ABD=25^{\circ}

Since, the angle is bisected, this means that the angle is split into two equal parts or the angle is halved.

We know that one of the angles is 25^{\circ} so the other angle has to be 25^{\circ} also.

Hence, the m\angle DBC=25^{\circ}.

6 0
3 years ago
Sarah earns $500 a week at her job when she works 40
frez [133]

Answer:

G = $612.50 when H = 46hours

Step-by-step explanation:

Given:

G = 18.75(H-40) + 500

Where,

G =Gross pay in dollars

H = Number of hours worked

If her gross pay one week was $612.50, what was the

total number of hours she worked that week?

G = $612.50 when H = ?

G = 18.75(H-40) + 500

612.50 = 18.75H - 750 + 500

612.50 = 18.75H - 250

Add 250 to both sides

612.50 + 250 = 18.75H

862.5 = 18.75H

Divide both sides by 18.75

862.5 / 18.75 = 18.75H / 18.75

46 = H

H = 46

If her gross pay one week was $612.50, her total hours worked = 46hours

6 0
3 years ago
does choosing a blue marble represent the compliment event of choosing a red marble? explain. (there are 2 blue, 1 red, and two
erica [24]

Answer:

choosing a blue marble does not represent the complement event of choosing a red marble because 2/5 ≠ 4/5.  

Step-by-step explanation:

The total number of marbles ⇒ 2 blue + 1 red + 2 purple = 5 marbles.

4 0
3 years ago
Read 2 more answers
What is measure of angle R?
TEA [102]
I want to say it's 45 degrees. I got it by subtracting 180 and 90 then you get 90 and you divide that by 2. The reason I subtracted by 180 is because that's how many degrees a triangle is. I hope it helps.
6 0
3 years ago
Read 2 more answers
What is the value of (16^3/2)^1/2 256 8 4096 64
BabaBlast [244]

Answer:

8

Step-by-step explanation:

(16^3/2)^1/2

We know that a^ b^c = a^(b*c)

16 ^(3/2*1/2)

16 ^3/4

Now rewriting 16 as 2^4

2^4^3/4

2 ^ (4*3/4)

2^3

8

6 0
4 years ago
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