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3 years ago

5

On a certain day the temperature changed a rate of -3 degrees Fahrenheit per hour how long did it take for the temperature to ch

ange to -33 degrees Fahrenheit

1 answer:

swat323 years ago

6 0

Answer: is 11 hours.

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I need someone to help me with my math assignments

Nonamiya [84]

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3 years ago

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two numbered 1 to 6 dice are thrown together and their scores are added. the probability that the sum will be 4 is?

natulia [17]

Answer:

$Pr = \frac{3}{36}$

Step-by-step explanation:

Given

2 number die

Required

P(Sum = 4)

The sample space of 2 die is:

$S = \{(1, 1) (1, 2) (1, 3) (1, 4) (1, 5) (1, 6), (2, 1) (2, 2) (2, 3) (2, 4) (2, 5) (2, 6)$

$(3, 1) (3, 2) (3, 3) (3, 4) (3, 5) (3, 6), (4, 1) (4, 2) (4, 3) (4, 4) (4, 5) (4, 6)$

$(5, 1) (5, 2) (5, 3) (5, 4) (5, 5) (5, 6), (6, 1) (6, 2) (6, 3) (6, 4) (6, 5) (6, 6)$

$n(S)= 36$

The pairs that adds up to 4 are:

$Sum(4) = \{(1,3), (2,2),(3,1)\}$

$n(Sum) =3$

So, the probability is:

$Pr = \frac{n(Sum)}{n(S)}$

$Pr = \frac{3}{36}$

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2 years ago

If a/b = c/d, then ad = bc.

Nikolay [14]

Answer:

The statement is true

see the explanation

Step-by-step explanation:

we have the proportion

$\frac{a}{b}=\frac{c}{d}$

we know that

To solve the proportion multiply in cross

so

$(a)(d)=(b)(c)$

$ad=bc$

therefore

The statement is true

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3 years ago

What is -2 1/3 - (-5)=

Archy [21]

Answer:

$\frac{8}{3}$

Step-by-step explanation:

$- 2 \frac{1}{3} - ( - 5)$

convert mixed fraction into improper fraction.

$- \frac{7}{3} + ( - 5)$

calculate the sum of the fraction:

$\frac{8}{3}$

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2 years ago

Select the equation has no solution. A) 2x + 17 - 7x - 6 = 8 - 10x - 19 + 5x B) 7 + 16x + 1 - 4x = 24 + 8x - 9 + 3x C) 9x - 3 +

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These problems really aren't hard just set them equal to each other and see if what they are saying is true. Are they equal? Do they both equal 0?

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