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MakcuM [25]
3 years ago
10

Anyone know the answer to this, will mark as brainlist

Mathematics
2 answers:
stepladder [879]3 years ago
7 0

Answer:

15

Step-by-step explanation:

adding 15 black beads gives you 16 black beads and 4 white beads

16/4 =4/1 or 4:1

guapka [62]3 years ago
4 0
The answer is 15 because adding on 15 black beads will give 16 black beads and 4 white beads

16/4= 4:1

Hope this helps
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WILL MARK BRAINLIEST IF ANSWERED CORRECTLY (SHOW YOUR WORK)
damaskus [11]

Answer:

One solution -> x = 35 , y = -25

Step-by-step explanation:

Solve the following system:

{14 x + 7 y = 315 | (equation 1)

16 x - 2 y = 610 | (equation 2)

Swap equation 1 with equation 2:

{16 x - 2 y = 610 | (equation 1)

14 x + 7 y = 315 | (equation 2)

Subtract 7/8 × (equation 1) from equation 2:

{16 x - 2 y = 610 | (equation 1)

0 x+(35 y)/4 = (-875)/4 | (equation 2)

Divide equation 1 by 2:

{8 x - y = 305 | (equation 1)

0 x+(35 y)/4 = -875/4 | (equation 2)

Multiply equation 2 by 4/35:

{8 x - y = 305 | (equation 1)

0 x+y = -25 | (equation 2)

Add equation 2 to equation 1:

{8 x+0 y = 280 | (equation 1)

0 x+y = -25 | (equation 2)

Divide equation 1 by 8:

{x+0 y = 35 | (equation 1)

0 x+y = -25 | (equation 2)

Collect results:

Answer: x = 35 , y = -25

6 0
3 years ago
Reduce the fraction to lowest terms. y+5/2y+10<br><br>A:1/4<br>B:1/2<br>C:2/5
Oduvanchick [21]
The given fraction is:

\frac{y+5}{2y+10}

We cannot take anything common from the numerator but from the denominator we can take out 2 as common because 2 is a factor of both the terms i.e. 2y and 10. 

2y + 10 can be written as 2y +2(5) which can further be written as 2(y+5)

So, our fraction now becomes:

\frac{y+5}{2(y+5)}

y+5 occurs in both the numerator and denominator and thus be cancelled out leaving behind:

\frac{1}{2}

Therefore, the given fraction in lowest term is equal to 1/2. So option B is the correct answer 
8 0
3 years ago
Express each fraction as a decimal 20 25
aleksandrvk [35]

20/25 as a decimal is 0.8
4 0
3 years ago
(2x+3y) + (5x+3y) = 4 +-8
Artist 52 [7]

Answer:

Step-by-step explanation:

6 0
3 years ago
If 6 beads weigh 48 grams, how many beads weigh 72 grams?
allochka39001 [22]
Nine.
48 divided by 6 is 8, which means that each bead weighs 8 grams.
72 divided by 8 is nine.
4 0
3 years ago
Read 2 more answers
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