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3 years ago

HELP ME ASAP! Try to read this in English

Mathematics

1 answer:

Deffense [45]3 years ago

3 0

Step-by-step explanation:

No. of wooden boxes is less than 9

x< 9

No. of plastic boxes is not more than 10

y ≤ 10

Weight equation

Wood box 6 kg Plastic box 3 kg total 36 kg

which means that the weight that can be carried must be greater than or equal to the actual weight

6x + 3y ≥ 36

Volume equation

Wood box 0.25 m² Plastic box 0.5 m² total 3 m²

which means that the capacity of boxes must be greater than or equal to the capacity of actual load

0.25x + 0.5y ≥ 3

4) Let the no. of RM100 tickets be x and no. of RM150 tickets be y

no. of RM100 tickets is more than no. of RM150 tickets.

x > y

Total price exceeds 3000

100x + 150y > 3000

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18 ounces. of iced tea costs 2.99. How much will 30 ounces. cost

schepotkina [342]

Answer:

About $4.98

Step-by-step explanation:

5 0

3 years ago

Involving the selection of frozen dinners. Assume that there are 15 frozen dinners: 7 pasta, 6 chicken, and 2 seafood dinners. T

zzz [600]

The probability that at least 2 of the dinners selected are pasta dinners will be 0.8181...

Explanation

Pasta dinners = 7 , Chicken dinners = 6 and Seafood dinners = 2

The student selects 5 of the total 15 dinners. So, total possible ways for selecting 5 dinners $=^1^5C_{5} =3003$

For selecting at least 2 of them as pasta dinners, the student can select 2, 3, 4 and 5 pasta dinners from total 7 pasta dinners.

So, the possible ways for selecting 2 pasta dinners $=^7C_{2}*^8C_{3} =1176$

The possible ways for selecting 3 pasta dinners $=^7C_{3}*^8C_{2} =980$

The possible ways for selecting 4 pasta dinners $=^7C_{4}*^8C_{1} =280$

The possible ways for selecting 5 pasta dinners $=^7C_{5}*^8C_{0} =21$

Thus, the probability for selecting at least 2 pasta dinners $=\frac{1176+980+280+21}{3003} =\frac{2457}{3003} =0.8181.....$

3 0

4 years ago

Which of the following statements is not always true?

coldgirl [10]

Answer:

The correct answer is C

Step-by-step explanation:

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7 0

4 years ago

Read 2 more answers

Explain how finding 7×20 is similar to finding 7×2,000 . then Find each product

3241004551 [841]

7x20=140. 7x2000=14000. The only thing that changes the product of these numbers is the amount of zeros behind the 2. Since the only two numbers that affect the answer is the 7 and the 2. (7x2=14). The number of zeros behind the 2 affect how many zeros will be included in the product.

6 0

4 years ago

Read 2 more answers

A motorboat travels 172 km in 3 hours going upstream and 372 in 4 hours going downstream. What is the rate of the boat in still

torisob [31]

Answer:

The rate of the boat is 75.17 km/h and the rate of the stream is 17.83 km/h

Step-by-step explanation:

System of Equations

Let's call:

B = speed (rate) of the boat in still water

S = speed (rate) of the stream

The boat travels 172 km in 3 hours when going upstream, that is when the speed of the stream subtracts its own speed. The speed is the distance divided by the time, thus:

$\displaystyle B-S=\frac{172}{3}$

Multiplying by 3:

3B - 3S = 172 [1]

The boat travels 372 km in 4 hours downstream when the speed of the current adds to its own:

$\displaystyle B+S=\frac{372}{4}=93$

B + S = 93

Solving for B:

B = 93 - S [2]

Substituting in [1]

3(93 - S) - 3S = 172

Operating:

279 - 3S - 3S = 172

279 - 6S = 172

Subtracting 279:

- 6S = 172 - 279

- 6S = -107

Multiplying by -1 and solving for S:

$S = \frac{107}{6}\approx 17.83\ km/h$

From [2]:

$B = 93 - \frac{107}{6}$

$B=\frac{451}{6}\approx 75.17\ km/h$

4 0

3 years ago

HELP ME ASAP! Try to read this in English ​

HELP ME ASAP! Try to read this in English