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3 years ago

6

Hannah can paint a room in 12 hours. Destiny can paint the same room in 9 hours. How long does it take for both Hannah and Desti

ny to paint the room it they are working together.

2 answers:

Minchanka [31]3 years ago

8 0

They will both finish in exact 3 hours

Misha Larkins [42]3 years ago

3 0

1 hours and 33 min if they work together

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Simplify the expression using the exponent properties 5 ^ −4 x 5^ −3

vodka [1.7K]

Answer:

$5^{-7}$ or 0.0000128

Step-by-step explanation:

Add the exponents together

-4+-3=-7

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3 years ago

Find measure B ???????

Contact [7]

The interior angles in a 4 sided polygon add up to 360°. You are already given two measurements of 90°, so you know that the lastvtwo angles sum to 360-90-90= 180°.
Put this information into an equation and solve for x:
(7x+27)°+(9x-7)°=180°
7x+27°+9x-7°=180°
16x+20°=180°
16x=160°
x=10°
Angle B is (7x+27)°, so just substitute x:
B = 7(10)+27
B = 70+27
B = 97°

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4 years ago

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butalik [34]

The slope-intercept form is
y
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3 years ago

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The odds against Carl beating his friend in a round of golf are 9:7. Find the probability that Carl will lose?

grandymaker [24]

The ratio 9:7 gives you following statement:

Carl will win in 9 cases from 9+7=16;
Carl will lose in 7 cases from 16.

Then the probability that Carl will lose is

$Pr(\text{Carl will lose})=\dfrac{7}{16}.$

Answer: $Pr(\text{Carl will lose})=\dfrac{7}{16}.$

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4 years ago

Jose needs to enclose a rectangular section of his yard. The perimeter of the section is 27 feet, and the area is 35 square foot

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A = 35 sq ft
<span>L = 10 ft </span>
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3 years ago