3 years ago

Does anyone know how to solve this problem?

Mathematics

1 answer:

LenKa [72]3 years ago

3 0

He needs $78.95 to buy 5 of each

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P:-3x + 8x - 5x = x<br><br> q: (3x)(5y) = 15xy<br><br> Which of the following statements is false?

Varvara68 [4.7K]

Answer: Statement p is false.

Step-by-step explanation:

In both cases, we need to isolate the variables:

p: -3*x + 8*x - 5*x = x

(-3*x - 5*x) + 8*x = x

-8x + 8*x = x

0 = x

This will be true only for one value of x, so this is not always true, which means that the statement is false.

q: (3*x)*(5*y) = 15*x*y

let's solve the left side:

3*x*5*y = 15*x*y

(3*5)*(x*y) = 15*x*y

15*x*y = 15*x*y

This is true for every value of x and y, then this statement is true.

5 0

3 years ago

NikAS [45]

Answer:

x=9

Step-by-step explanation:

7x-11 = 4x-2

7x-4x=11-2

3x=9

x=9

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3 years ago

If a 60 year old buys a $1000 life insurance policy at a cost of $50 and has a probability of 0.954 of living to age 61 find the

ANTONII [103]

Answer:

The expectation of the policy until the person reaches 61 is of -$4.

Step-by-step explanation:

We have these following probabilities:

0.954 probability of a loss of $50.

1 - 0.954 = 0.046 probability of "earning" 1000 - 50 = $950.

Find the expectation of the policy until the person reaches 61.

Each outcome multiplied by it's probability, so:

$E = -0.954*50 + 0.046*950 = -4$

The expectation of the policy until the person reaches 61 is of -$4.

6 0

3 years ago

What is the range of the set of ordered pairs below? {(2, 3),(0, 6),(- 2, 9),(4, 0)}

Nonamiya [84]

Answer:

{3,6,9,0}

Step-by-step explanation:

The range is the set of all second elements of ordered pairs (y-coordinates).

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3 years ago

Calculate the area of triangle ABC with altitude AD, given A(-5, 4), B(-6, 1), C(0, 1), and D(-5, 1).

snow_lady [41]

Answer:

the area of triangle ABC = 9

Step-by-step explanation:

Check the photo below for the details.

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4 years ago