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3 years ago

Answer this question in the photo 18 PTS

Mathematics

1 answer:

LiRa [457]3 years ago

4 0

Question - Answer
a) 1/2 L = 4
b) 1/2 L x 4 = 2
c) 5/6 x 2 = 1 4/6 L OR 1.67 L
d) 2/3 L = 3 beakers with 2/3 OR 5 beakers with 2/3 and 5/6
e) <1/3 L = 3 beakers

I believe that is the answer.

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Tory and Emilio's motorboat travel at the same speed. Tory pilots her boat 50 km before docking. Emilio continues for another 2

Harrizon [31]

1. You have that the speed is:

$V=\frac{d}{t}$

Where $d$ is the distance and $t$ is the time.

2. Tory pilots her boat $50 km$ before docking, therefore, his time is

$t1=\frac{50km}{V}$

3. Emilio continues for another $2 hours$ , with a total of $80 km$ before docking. Therefore, his time is:

$t2=(\frac{50km}{2} +2h)$

4. And his speed is:

$V=\frac{80km}{(\frac{50km}{V}+2h)}$

5. Solve for $V$ and substitute the value into the formula of Tory's time:

$\\V=15\frac{km}{h} \\ t1=\frac{50km}{15\frac{km}{h}} t1=3.33h$

The answer is: $3.33 hours$

4 0

3 years ago

Can someone please help?

defon

Answer:

1515

Step-by-step explanation:

4 0

3 years ago

Please help!!! asap!!!!

Bezzdna [24]

Answer:

x=−3

Step-by-step explanation:

8 0

3 years ago

For a language test with normally distriuted scores, the mean was 70 and the standard deviation was 10. Approximately what perce

Alborosie

Answer: 84.13%

Step-by-step explanation:

Given : The scores in a a language test with normally distributed.

Mean : $\mu=70$

Standard deviation: $\sigma= 10$

Let x be the random variable that represents the scores of students.

Formula for z-score: $z=\dfrac{x-\mu}{\sigma}$

For x= 60 , we have

$z=\dfrac{60-70}{10}=-1$

The probability f test takers scored a 60 or above :-

$P(x\geq60)=P(\geq-1)=1-P(z$

Hence, the percentage of test takers scored a 60 or above = 84.13%

6 0

4 years ago

What is the value of y?

Ad libitum [116K]

Because this is a triangle, all three angles put together equals 180 degrees.

We can add the angles together and set them equal to 180 to solve for the value of y.

y + y - 12 + 56 = 180

Combine like terms.

2y + 44 = 180

Subtract 44 from both sides.

2y = 136

Divide both sides by 2.

y = 68

<u>The value of y is equal to 68 degrees.</u>

7 0

3 years ago