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3 years ago

Mr suresh had 7/9 kg of sugar. He used 1/3 of it. How much sugar did he use?

Mathematics

1 answer:

BabaBlast [244]3 years ago

3 0

1/3 * 7/9 kg = (1 * 7)/(3 * 9) kg = 7/27 kg

He used 7/27 kg of sugar.

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A hot-air balloon is 1200 feet off the ground and its altitude is slowly changing at a constant rate of −712 feet per second.

brilliants [131]

It will take 2 seconds

Explanation:
1200-712= 488
488-712= -224

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3 years ago

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Solve for the value of X in 9^x+4(3^x+1)+27=0

worty [1.4K]

Answer:

No solutions

Step-by-step explanation:

$9^x + 4(3^x + 1) + 27 = 0\\3^{2x} + 4 \cdot 3^x + 31 = 0$

Substitute 3^x with t and we get.

$t^2 + 4t + 31 = 0\\\triangle = 16 - 4 \cdot 31 = -108 < 0 => t_{12} \notin R => x \notin R$

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3 years ago

98 x 63 – 32 x 69 =

Dahasolnce [82]

Answer:

3966

Step-by-step explanation:

Use order of operations to solve this problem:

Parentheses
Exponents
Multiply (Left to right)
Divide (Left to right)
Addition
Subraction

In your case, there are no parentheses or exponents, so we can skip right the the multiply and divide step. The first multiplication is 98*63=6174. The next step is to do 32*69=2208. Then you minus 6174-2208=3966.

Hope this helps!

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3 years ago

54% of U.S. adults have very little confidence in newspapers. You randomly select 10 U.S. adults. Find the probability that the

Liula [17]

Answer:

$P(5)=0.238$

$P(x\geq 6)=0.478$

$P(x$

Step-by-step explanation:

In this case we can calculate the probability using the binomial probability formula

$P(X=x)=\frac{n!}{x!(n-x)!}*p^x*(1-p)^{n-x}$

Where p is the probability of obtaining a "favorable outcome " x is the number of desired "favorable outcome " and n is the number of times the experiment is repeated. In this case n = 10 and p = 0.54.

(a) exactly five

This is:

$x=5,\ n=10,\ p=0.54.$

So:

$P(X=5)=\frac{10!}{5!(10-5)!}*0.54^x*(1-0.54)^{10-5}$

$P(5)=0.238$

(b) at least six

This is: $x\geq 6,\ n=10,\ p=0.54.$

$P(x\geq 6)=P(6) + P(7)+P(8)+P(9) + P(10)$

$P(x\geq 6)=0.478$

(c) less than four

This is: $x< 4,\ n=10,\ p=0.54.$

$P(x$

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3 years ago

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How to mentally subtract smaller numbers from bigger numbers?

Mamont248 [21]

Umm well ill show you how I do it so if it is 67 minus 72 I would subtract the tens spot first then I would do the ones it works for me and it is easy so I hope this helped ohand the answer is -5

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3 years ago

Mr suresh had 7/9 kg of sugar. He used 1/3 of it. How much sugar did he use?​

Mr suresh had 7/9 kg of sugar. He used 1/3 of it. How much sugar did he use?