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2 years ago

Change the order or grouping to find sum, explain how you used properties to find sum. 63+86+77

1 answer:

6 0

63+86+77 it =s 226 so thank you for asking am only 9 am in 4 grade its easy look it up on the calculator but I did not use it believe me

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A theater has tickets at $6 for adults, $3.50 for students, and $2.50 for children under 12 years old. a total of 278 tickets we

sesenic [268]

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algebra :) sorry idk the answer i bet someone will help you in "ten minuttes' brainly says"

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1 year ago

A box has 1 red marble, 3 blue marbles, and 4 green marbles. Maya draws a blue marble randomly from the box, replaces it, and th

allochka39001 [22]

Answer:

$\dfrac{9}{64}$

Step-by-step explanation:

Sampling with replacement means that we choose a marble, note its colour, put it back and shake the box, then choose a marble again.

There are $1+3+4=8$ marbles in total. The probability that the first chosen marble is blue is $\dfrac{3}{8}.$ then Maya replaces this marble and the probability of choosing the second blue marble is the same. Using the product rule, the probability of drawing 2 blue marbles in a row is

$\dfrac{3}{8}\cdot \dfrac{3}{8}=\dfrac{9}{64}.$

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2 years ago

Sarah begins at a negative position along the x-axis. Sarah moves in the positive x-direction, turns around and then moves in th

a_sh-v [17]

Answer:

he magnitude of Sarah's displacement is less than the distance she travels

Step-by-step explanation:

Hi!

The magnitude of her displacement is just the difference between her final and initial state, however the distance she traveled is two times the distance she moved in the positive x-direction until she turned around, since she had to move back, plus her displacement.

So:

$displacement = |x_{final} -x_{initial}| \\distanceTraveled = 2|x_{return}-x_{initial}| + displacement\\$

Since all the terms are positive:

$x_{displacement}$

3 0

2 years ago

Write -2x 2(-5x 2 +4x 3) in standard form.

Anvisha [2.4K]

This in standard form is -28x + 10.

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2 years ago

Isaac take 5 minutes to ride his bike to down the hill to school and 10 minutes to ride up the hill from school. He attends scho

Delvig [45]

In the given question, it is given that

Isaac take 5 minutes to ride his bike to down the hill to school and 10 minutes to ride up the hill from school. He attends school Monday through Friday.

So per day, from Monday to Friday, Issac rides 15 minutes.

And in 2 weeks, Issac have to ride 10 days.

So in 10 days, Issac rides,

$10*15 = 150 minutes$

7 0

1 year ago