4 years ago

Math help! Question 5

Mathematics

1 answer:

Rudiy274 years ago

5 0

Answer:

a. 4 teachers b. 58 students c. 62 people

Step-by-step explanation:

multiply 80 by 0.05, you get 4.

Multiply 1160 by 0.05, you get 58.

Add 80 and 1160 together, you get 1240. Multiply 1240 by 0.05, you get 62.

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TELL ME WHAT X IS PLEASE

Kaylis [27]

X=6 2+1=3 and 3 x 2=6 so x is 6

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4 years ago

Stephen was thinking of a number. Stephen adds 7.9 to the number, then doubles the result to get an answer of 20. Form an equati

a_sh-v [17]

Answer:

Step-by-step explanation:

2(x+7.9)=20

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3 years ago

On a December day, the probability of snow is 0.30. The probability of a "cold" day is 0.50. The probability of snow and "cold"

Margarita [4]

Answer:

Yes, snow and cold weather are independent.

Step-by-step explanation:

We are given the following in the question:

C: Cold weather

S: Snow

P(C) = 0.50

P(S) =0.30

$P(S\cap C) = 0.15$

We have to check whether snow and cold whether are independent events.

If the events A and B are independent then,

$p(A\cap B) = P(A)\times P(B)$

Checking,

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Thus, the two events are independent.

For mutually exclusive events

$P(A\cap B) = 0$

Thus, the given events are not mutually exclusive.

8 0

3 years ago

The steps below show the incomplete solution to find the value of x for the equation

Lady_Fox [76]

The next step should be 4x=20~

3 0

3 years ago

Read 2 more answers

Find the solution of the system of equations.<br> 10x+10y=40 <br> 5x+3y=8

ddd [48]

Answer:

x = -2 & y = 6

Step-by-step explanation:

$10x+10y=40$

$10x+10y+ -10y=40+-10y$

$10x=-10y+40$

$\frac{10x}{10} =\frac{-10y+40}{10}$

$x=-y+4$

$5x+3y=8$

$5(-y+4)+3y=8$

$-2y+20=8$

$-2y+20+-20=8+-20$

$-2y=-12$

$\div2$

$y=6$

$x=-y+4$

$x=-6+4$

$x=-2$

Hope this helps.

7 0

3 years ago