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Phoenix [80]
2 years ago
11

David is making rice for his guests based on a recipe that requires rice, water, and a special blend of spice, where the rice-to

-spice ratio is 15:115:115, colon, 1. He currently has 404040 grams of the spice blend, and he can go buy more if necessary. He wants to make 101010 servings, where each serving has 757575 grams of rice. Overall, David spends 4.504.504, point, 50 dollars on rice.
Mathematics
2 answers:
Mademuasel [1]2 years ago
8 0

Answer:

0.006

(It might not seem like the right answer but it is)

Step-by-step explanation:

Khan Academy

aniked [119]2 years ago
6 0

Answer:

0.006

Step-by-step explanation:

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A card is drawn from a deck of cards numbered one through twenty. The card is NOT replaced and another card is drawn. Find the p
Bess [88]

Answer:

B)  P(two prime numbers are drawn in a row) = 14/95

Step-by-step explanation:

Total cards in the deck  = 20

Total prime numbered cards in deck  = { 2, 3, 5, 7, 11, 13, 17, 19}  = 8 cards

So, Probability of picking two prime cards from deck (without replacing)

= Probability of picking first prime card x Probability of picking second prime card

P( picking first prime card ) = \frac{\textrm{Total prime cards in the deck}}{\textrm{Total available cards}}

= \frac{8  }{20}  = \frac{2}{5}

P( picking second prime card )  = \frac{\textrm{Total prime cards in the deck}}{\textrm{Total available cards}}

=\frac{7}{19}

Hence, the total probability =\frac{2}{5}  \times \frac{7}{19} = \frac{14}{95}

or, B)  P(two prime numbers are drawn in a row) = 14/95

4 0
2 years ago
(A) The weight of cans of vegetables is normally distributed with a mean of 1380 grams and a standard deviation of 80 grams. Wha
pychu [463]

Answer:

7.35%

Step-by-step explanation:

μ = 1380

σ = 80  

n = 15  

P(x>1410)  

= (1410-1380)/((80)/(sqrt(15)))

= 1.4524  

P(z>1.4524) = 0.4265  (from the graph)

P(z>1.4524) = 0.5 - 0.4265 = 0.0735

7 0
1 year ago
Mark is making a decoration for a rally, using a string of triangular strips. Each strip is an isosceles triangle when flattened
jeyben [28]

Solution:

Consider the Given Isosceles Triangle

Considering the Possibilities

Case 1. When two equal angles are of 70°

 Let the third angle be x.

Keeping in mind , that sum of Interior angles of Triangle is 180°.

70° + 70° + x= 180°

140° +x= 180°

x= 180°- 140°

x= 40°

Case 2:

When an angle measures 70°, and two equal angles measure x°.

Keeping the same property of triangle in mind, that is sum of interior angles of triangle is 180°.

70° + x° + x° = 180°

⇒  70° + 2 x° = 180°

⇒ 2 x° = 180° -  70°

⇒ 2 x° = 110°

Dividing both sides by 2, we get

x= 55°


5 0
2 years ago
PLEASE HELP A pizza parlor sells 320 pizzas per night when they charge $9.00 per pizza. The owner believes increasing the price
Sonja [21]
1. $9.00+$0.15=$9.15
2. 320-4=316
6 0
2 years ago
The distance between New York and Philadelphia by railroad is 90 miles; the distance between them by river and ocean is 240 mile
VladimirAG [237]
Start with 90/240, then reduce the fraction
you can reduce by dividing each by 10 to get 9/24
reduce more from there, seeing that each number can be divided by 3
9/3  = 3
24/3 = 8
answer 3/8

3 0
2 years ago
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