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Whitepunk [10]
3 years ago
13

If a/b = 2 /5, b/c = 3 /8, a/c =??​

Mathematics
1 answer:
scoray [572]3 years ago
8 0

Answer:

3/20

Step-by-step explanation:

By question it's given that ,

\implies \dfrac{a}{b}=\dfrac{2}{5}

\implies \dfrac{b}{c}=\dfrac{3}{8}

And we need to find out the value of a/c .For that Multiply both of them , we have ;

\implies \dfrac{a}{b} \times\dfrac{b}{c}=\dfrac{2}{5}\times \dfrac{3}{8} \\\\\implies \dfrac{a}{c}= \dfrac{3}{20}

<u>Hence</u><u> the</u><u> </u><u>required</u><u> answer</u><u> is</u><u> </u><u>3/</u><u>2</u><u>0</u><u> </u><u>.</u>

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A cafeteria can feed 1/8 of the school in 3 1/2 minutes. How long does it take to feed the school?
77julia77 [94]

Answer:

28 minutes

3.5 x 8 = 28

Step-by-step explanation:

Feeding the whole school (8/8) would take 8 times as long as feeding 1/8 of the school.

3 1/2 can become 3.5 if that's easier for you to work with.

Feeding 1/8 of the school is 3.5 x 1 = 3.5

Feeding 2/8 of the school is 3.5 x 2 = 7

Feeding 8/8 of the school is 3.5 x 8 = 28

It takes 28 minutes to feed the whole school (8/8)

6 0
3 years ago
Read 2 more answers
Solve 7x - c=k for x
kobusy [5.1K]

Answer:

x = \frac{c+k}{7}

Step-by-step explanation:

<em>We'd add c in both sides</em>

7x = c + k

<em>Divide 7 in both sides isolate the variable</em>

7x/7 = x

c+k/7

x = c + k/7

Our answer is x = c+k/7

8 0
3 years ago
4. What is the slope of the line?
Dafna1 [17]

The slope of horizontal lines is ALWAYS 0.

The answer is B. 0

7 0
3 years ago
If a pound of rice flour costs $12, how many ounces can be bought for $6.90?
Viktor [21]

Answer:

9.2 ounce

Step-by-step explanation:

To do this, we divide $12 by 16 ounces, because there are 16 ounces in a pound:

12/16 = 0.75

Now, we need to find how many ounces can be bought for $4.80. To do this, we divide 6.90 by 0.75

=9.2 ounce

4 0
2 years ago
The sum of 2 numbers is 150.One number is 12 more than the other number.What is the smaller number?​
anygoal [31]
The smaller number is 63 I think.

I think this because 150/2 is 75

75-12=63

the small number would be 63

the larger number just in case u need it btw is 87 I think


hope this helps
7 0
3 years ago
Read 2 more answers
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