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3 years ago

Simply 3-[-(-1)] a.4 b. -4 c.2 d. -2

Mathematics

2 answers:

Dovator [93]3 years ago

7 0

C.2 will be your answer to show your work 3-[-(-1)] 3+-1 =2

OleMash [197]3 years ago

6 0

C) 2 would be your answer

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When they are both racing on hoverboards, Victoria is 3 times as fast as her brother Max. When she is on foot, she is 3 times sl

NARA [144]

Answer:

Race completed in 48 minutes.

Step-by-step explanation:

Let the speed of Max on hoverboard is = x

Then as per question speed of Victoria on hoverboard = 3x

Now it has been given in the question that speed of Victoria on foot is 1/3 of the speed of Max on hoverboard that will be = x/3

Now we will form the equation.

As we know the formula speed = distance/time

Let the time taken by both to complete the race be t minutes.

Distance covered by Victoria in 12 minutes + Distance covered by Victoria on foot = distance covered by Max on hoverboard

Then the equation will be

12(3x)+(1/3)x(t-12)=xt

$36x+\frac{xt}{3}-4x=xt$

$x(36+\frac{t}{3}-4)=xt$

$36+\frac{t}{3}-4=t$

$32=t-\frac{t}{3}$

$\frac{2t}{3}=32$

$t=\frac{(32)3}{2}=48$

So 48 minutes it took to complete the race.

4 0

3 years ago

Read 2 more answers

What is the theoretical probability of rolling a number less than 5? Write the fraction, decimal and percent.

stealth61 [152]

Given:

Rolling a fair dice.

To find:

The theoretical probability of rolling a number less than 5.

Solution:

The possible numbers of rolling a dice are 1, 2, 3, 4, 5, 6.

Total outcomes = 6

Numbers less than 5 are 1, 2, 3, 4.

Favorable outcomes = 4

Now, the theoretical probability of rolling a number less than 5 is:

$\text{Probability}=\dfrac{\text{Favorable outcomes}}{\text{Total outcomes}}$

$\text{Probability}=\dfrac{4}{6}$

$\text{Probability}=\dfrac{2}{3}$

In decimal form, it can be written as:

$\text{Probability}\approx 0.67$

In percentage form, it can be written as:

$\text{Probability}=\dfrac{2}{3}\times 100$

$\text{Probability}\approx 66.67%$

Therefore, the theoretical probability of rolling a number less than 5 in the fraction, decimal and percent are $\dfrac{2}{3}, 0.67$ and $66.67\%$ respectively.

8 0

3 years ago

Write fractions that have a denominator of 24 and are equivalent to 1/3 , 1/6 , and 1/2 .

daser333 [38]

Answer:

12/24 is one for 1/2

Step-by-step explanation:

12 times 1 = 12

12 times 2 = 24

6 0

3 years ago

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(02.03) if granola costs $2.20 per pound, how much does 0.8 pound of granola cost?

Karolina [17]

2.20 per pound

2.20 x 0.80 = 1.76

0.8 pounds cost $1.76

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4 years ago

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Find the area of the figure. If necessary, round to the nearest tenth.

nirvana33 [79]

Answer:9.4cm2

Step-by-step explanation:

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3 years ago