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3 years ago

Help me plzzz will give brainlest!!!!

Mathematics

1 answer:

Leno4ka [110]3 years ago

8 0

Answer:b,they are not proportional

Step-by-step explanation:

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David makes $16.40 per hour. Any hours worked over 40 hours in a week are paid at time-and-a-half. David worked 47 hours last

Maurinko [17]

Answer:

A: $656 B: $24.6 per hour, $172.2 total overtime pay. C: $828.2

Step-by-step explanation:

A: multiply 16.4 times 40

B: 16.4 / 2 = 8.2 8.2 + 16.4 = 24.6. 24.6 times 7 is 172.2

C: Add overtime pay and regular pay to get total gross pay.

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2 years ago

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Suppose that you randomly draw one card from a standard deck of 52 cards. After writing down which card was drawn, you replace t

KengaRu [80]

Answer:

0.139

Step-by-step explanation:

We are given that

Total number of cards=52

n=18

We have to find the probability of drawing at least 7 spades

Total number of spaded in deck of 52 cards=13

Probability of getting spade= $p=\frac{13}{52}=\frac{1}{4}$

Probability, $P(E)=\frac{favorable\;cases}{total\;number\;of\;cases}$

Probability of getting no spade= $q=1-p=1-\frac{1}{4}=\frac{3}{4}$

By binomial theorem of probability

$P(X=x)=\binom{n}r}p^rq^{n-r}$

P(x $\geq 7)=1-P(x\leq 6)$

The probability of drawing at least 7 spades= $1-\sum_{r=0}^{6}\binom{18}{r}(\frac{3}{4})^{18-r}(\frac{1}{4})^r$

The probability of drawing at least 7 spades=0.139

4 0

3 years ago

A model of house is 3 inch wide and 4 inches long. if the actual house is 20 yards long how wide is the actual house

Rama09 [41]

3/4=X/20
4x=60
X=15
Last step you divide

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3 years ago

) Three pieces of wood are needed to make the border of a garage door (the top and two sides). The

Alexeev081 [22]

Answer:

30ft

Step-by-step explanation:

so first you start with negative 2 and multiply 3 as the formula of the equation then you plug everything in

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2 years ago

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Pls explain super confused Thx

eimsori [14]

3+2•6/3
first you multiply the 2 and 6 on the top to get 12
so now it’s
3+12/3
now add the 12 and 3
15/3
now divide
so your answer is 5

7 0

4 years ago