3 years ago

What is the solution 4x+1y ≤48 and 10 ≤y ?

Mathematics

1 answer:

PIT_PIT [208]3 years ago

6 0

The answer is X=19/2 y=10

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If three-fifths of a class of thirty-five pupils are girls,how many are boys?

Lunna [17]

What you have to do is divide 35 by 5 to find one fith. You can see that one fith of the class is 7 so 14 pupils in the class is boys.

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Step-by-step explanation:

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3 years ago

Andre was trying to write 7^4/7^-3 with a single exponent and write 7^4/7^-3= 7^4-3=7^1 Exploit to Andre what his mistake was an

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$\frac{7^4}{7^{-3}}=7^7$

Here, we want to get what Andre's mistake was and correct it

To answer this, we are supposed to use the division law of indices

We have this as;

$\frac{a^x}{a^y\text{ }}=a^{x-y}$

Now, in the case of this question, x is 4 and y is -3

So, we have the expression as;

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1 year ago

Sophia uses 18 beads to make a necklace. Three sixths of the beads are purple. How many beads are purple?

joja [24]

Answer:

9 beads are purple

Step-by-step explanation:

we know that

To find out how many beads are purple, multiply the total beads by the fraction of the beads that are purple

$18(\frac{3}{6})=9\ beads$

therefore

9 beads are purple

Another way to solve the problem is convert the fraction in percentage

we have

$\frac{3}{6}=\frac{1}{2}=0.50*100=50\%$

If the total are 18 beads

50% is 9 beads

therefore

9 beads are purple

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4 years ago