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mylen [45]
3 years ago
10

PLEASE HELP IMPORTANT MATH

Mathematics
1 answer:
aksik [14]3 years ago
8 0

Answer:

The answer to your problem is b because if she wants to spend 20 minutes on the piano and she has 50 minutes until dinner than she would have 30 minutes on the computer.

Step-by-step explanation:

You might be interested in
Geometry please help. What is the perimeter of XYZ
Morgarella [4.7K]

Answer:

39

Step-by-step explanation:

Angle AQC, AQB and BQC are 120deg. (360/3=120). Therefore, Angle BZC, CXA and AYB are 60deg. Because, angle BZC is half of angle BQC. same for the other three angles. As, all 3 angles are 60deg, it is an equilateral triangle. So, YZ is 13 therefore as all 3 sides are equal its 13*3=39.

6 0
3 years ago
The values square root of 8and square root of 14 are plotted on the number line. What is the approximate in tenths between the t
leva [86]

Firstly, you have to count the number of spaces between the two points on the line, which gives you 9. Now, remember that you are counting between tenths on a number line, so you divide 9 by 10 to give you your answer, 0.9.

Step-by-step explanation:

4 0
2 years ago
Trucks that travel on highways have to stop at various locations to be weighed and inspected for safe brakes and light systems.
IrinaVladis [17]

Answer:

The reuired probability is 0.756

Step-by-step explanation:

Let the number of trucks be 'N'

1) Trucks on interstate highway N'= 76% of N =0.76N

2) Truck on intra-state highway N''= 24% of N = 0.24N

i) Number of trucks flagged on intrastate highway  = 3.4% of N'' = \frac{3.4}{100}\times 0.24N=0.00816N

ii)  Number of trucks flagged on interstate highway  = 0.7% of N' = \frac{0.7}{100}\times 0.76N=0.00532N

Part a)

The probability that the truck is an interstate truck and is not flagged for safety is P(E)=P_{1}\times (1-P_{2})

where

P_{1} is the probability that the truck chosen is on interstate

P_{2} is the probability that the truck chosen on interstate is flagged

\therefore P(E)=0.76\times (1-0.00532)=0.756

5 0
3 years ago
Joan planted 150 tulip bulbs, but only 20% of them bloomed. How many tulips<br> bloomed?
Bingel [31]
120 tulips just 150 x .80= 120
7 0
2 years ago
1 lapin a vu 6 éléphants en allant à la rivière. Chaque éléphant a vu 2 singes aller vers la rivière. Chaque singe tient 1 perro
Stolb23 [73]

Answer:

  • <u><em>31 animals</em></u>

Explanation:

The question is in French language. The translation to English is:

<em>1 rabbit saw 6 elephants while going to the river. Each elephant saw 2 monkeys go towards the river. Each monkey holds 1 parrot in its hands.</em>

<em>How many animals are going to the river?</em>

<em />

<h2>Solution</h2>

<em />

Animal       amount

Rabbit            1

Elephants      6 (the rabbit saw 6 elephants)

Monkeys:       6 × 2 = 12 (2 monkeys per elephant)

Parrots:          12 × 1 = 12 (1 parrot per monkey)

                     =============================

Total:             1 + 6 + 12 + 12 = 31 animals ← answer

4 0
2 years ago
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