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evablogger [386]
3 years ago
12

What is the equivalent expression of y+2/5y

Mathematics
1 answer:
Nonamiya [84]3 years ago
8 0
The answer Is going to be 24
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The ratio of a to b is 3 to 1, and the ratio of b to c is 1 to 5. What is the value of 2a+3b/ 4b+3c?
Nostrana [21]

Answer:

B

Step-by-step explanation:

Expressing the ratios as fractions, that is

\frac{a}{b} = \frac{3}{1} ( cross- multiply )

a = 3b

\frac{b}{c} = \frac{1}{5} ( cross- multiply )

c = 5b

------------------------------------------

Given

\frac{2a+3b}{4b+3c} , substitute values from above for a and c

= \frac{2(3b)+3b}{4b+3(5b)}

= \frac{6b+3b}{4b+15b}

= \frac{9b}{19b} ← cancel b on numerator/ denominator

= \frac{9}{19} → B

6 0
3 years ago
Help please will give brainiest
Arte-miy333 [17]

Answer:

The last one

Step-by-step explanation:

5 0
3 years ago
The function y = –16t2 + 224 models the height y in feet of a stone t seconds after it is dropped from the edge of a vertical cl
vodomira [7]
We are given with the free-fall function expressed as y = –16t2 + 224. To get the time of fall, equate y equal to zero as this means the stone has already reached the bottom. Doing this, t is equal to square root of 14 or equivalent to 3.74 seconds
8 0
3 years ago
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Find the radius and circumference of a CD with a diameter of 4.75 inches.
nexus9112 [7]
Radius is half of diameter.
Circumference can be found using the equation C=2(pi)r or C=(pi)d.
r=radius, d=diameter
(pi) is about 3.14 or 22/7
5 0
3 years ago
Keelahs clothing store buys coats for $50 and then sells them for $80 what is the percent of mark up on the price of the coat sh
olchik [2.2K]
I don't know if you meant profit or markup but, 

take the difference of $80 & $50 = $30

What percent of 50 is 30? It's 3/5 or 60%. So there is a 60% markup on the original price of 50$. 
3 0
3 years ago
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