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3 years ago

What number is 5% of 90?

Mathematics

2 answers:

DIA [1.3K]3 years ago

7 0

90 ÷ 10 = 9 = 10%
9 ÷ 2 = 4.5 = 5%

BARSIC [14]3 years ago

4 0

The answer would be 4.5 because 5% of 90= 4.5.

Hope this helped! :)

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If two angles of measure (x + 3)º and (2x – 9)º

nydimaria [60]

Step-by-step explanation:

(X+3)(2x_9)

3x+12_12=90_12

3x=90_12

3x=78

X=26°

8 0

3 years ago

The table gives the relative frequencies of recipes that contains sugar and salt, contain at least one of those ingredients, or

tigry1 [53]

Answer-

The probability that a randomly selected recipe does not contain sugar, given that it contains salt is 22.4%

Solution-

The given table in the link shows the relative frequencies of recipes that contains sugar and salt, or contains at least one of those ingredients, or contains neither of those ingredients.

We have to find the conditional probability that the recipe doesn't contain sugar, given that it contains salt.

We know that, the conditional probability of occurrence of A given that B occurs is,

$P(A|B)=\frac{P(A\ and\ B)}{P(B)} =\frac{P(A\bigcap B)}{P(B)}$

$P(\text{Doesn't contain sugar}\ |\ \text{Contains salt})=\frac{P(\text{Doesn't contain sugar}\ and\ \text{Contains salt})}{P(\text{Contains salt})}$

$P(\text{Doesn't contain sugar}\ and\ \text{Contains salt})=\frac{0.15}{1} =0.15\\P(\text{Contains salt})=\frac{0.67}{1}=0.67$

Putting these values,

$P(\text{Doesn't contain sugar}\ |\ \text{Contains salt})=\frac{0.15}{0.67} =0.224=22.4\%$

5 0

3 years ago

Help me please does this graph of a proportional relationship

Tanya [424]

Answer:

I think it is yes

Step-by-step explanation:

5 0

3 years ago

X/4 = 3/8 solve for x

Andrei [34K]

The ratio of 4 to 8 simplifies to 1:2. X will therefore be 3/2, as 3/2:3 simplifies to 1/2 (3 = 6/2).

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3 years ago

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jeyben [28]

Collect like terms

(-2x - 6x) + (-5y + 4y)

Simplify

-8x - y

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3 years ago

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