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anastassius [24]

2 years ago

8

Charlie wants to estimate how much time in the eighth grade students in his school spend on their homework each night which samp

le of matter would give Charlie the best estimate

1 answer:

Fudgin [204]2 years ago

7 0

Answer:

it is b

Step-by-step explanation:

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Please help. Its my last, please show at least some steps as I need to show work. Tysm

Fofino [41]

What’s your question :D

5 0

3 years ago

When 2(3/5 x + 2/3 y - 1/4 x -1 1/2 y + 3 )is simplified, what is the resulting expression?

vovangra [49]

Answer:

Simplifying the expression: $2(\frac{3}{5}x+\frac{2}{3}y-\frac{1}{4}x-1\frac{1}{2}y +3)$ we get $\mathbf{42x-100y-360}$

Step-by-step explanation:

We need to simplify the expression: $2(\frac{3}{5}x+\frac{2}{3}y-\frac{1}{4}x-1\frac{1}{2}y +3)$

First we will solve terms inside the bracket

$2(\frac{3}{5}x+\frac{2}{3}y-\frac{1}{4}x-1\frac{1}{2}y +3)$

Converting mixed fraction $1\frac{1}{2} y$ into improper fraction, we get: $\frac{3}{2}y$

Replacing the term:

$2(\frac{3}{5}x+\frac{2}{3}y-\frac{1}{4}x-\frac{3}{2}y +3)$

Now, taking LCM of: 5,3,4,2 we get 60

Now multiply 60 with each term inside the bracket

$2(\frac{3}{5}x\times60+\frac{2}{3}y\times60-\frac{1}{4}x\times60-\frac{3}{2}y\times60 +3\times60)\\2(3x\times12+2y\times20-1x\times15-3x\times30-3\times60)\\2(36x+40y-15x-90y-180)$

Now, combine like terms

$2(36x-15x-90y+40y-180)\\2(21x-50y-180)$

Now, multiply all terms with 2

$42x-100y-360$

So, Simplifying the expression: $2(\frac{3}{5}x+\frac{2}{3}y-\frac{1}{4}x-1\frac{1}{2}y +3)$ we get $\mathbf{42x-100y-360}$

3 0

3 years ago

The equation x2 - 3x = 22

gizmo_the_mogwai [7]

Answer:

x = - 3.42443 or 6.42443

Step-by-step explanation:

5 0

3 years ago

The graphic below shows a protractor, which is used to measure angles . What is the level of accuracy of the measurement tool ?

Oksanka [162]

Answer:

Pretty...accurate

Step-by-step explanation:

It's pretty accurate

5 0

2 years ago

Read 2 more answers

9. If you can make twenty parts in one hour, how many parts can you

zubka84 [21]

Answer:

65 parts

Step-by-step explanation:

20*3=60

20*(15/60)= 5

60+5=65

3 0

2 years ago