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3 years ago

The -30 is the one I need help on

Mathematics

1 answer:

Genrish500 [490]3 years ago

6 0

First you want to lay out the equation:

1. -30 = w + 8

Next you want to subtract 8 from each side

2. -30 = w + 8

-8 = w - 8

Then you want to add -30 and -8

3. -30 + -8 = -38

This is your answer

4. -38 = w

Or this could be written as:

5. w = -38

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Can someone please help me with #3?

kap26 [50]

Answer:

Step-by-step explanation:

First, make sure you know which section of the number line you want as 1 and 2. Next, put 0.25 not right at 0 but very close, then put 0.75 farther but not too much from 0.25. Then for the decimal 1.99 put that very close to where you marked the 2 but, not on the 2. Finally, put 2.03 very close to 2 but not exactly on the 2. Also, make sure that the number line is marked evenly.

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3 years ago

A set has 62 proper subsets how many elements has it for?<br>

MrRissso [65]

Answer:

Step-by-step explanation:

Total number of subsets is given as

${2}^{n}$

But the subset of a set consists of the proper subsets, an empty set and the set itself.

Total number of subsets are 64

Therefore,

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3 years ago

a sixth grade class has 12 boys and 24 girls consider this statement: <br />for every two boys there are 4 girls do you ag

Nitella [24]

So the ratio of boys to girls is 12:24.. now, is that an equivalent ratio as 2 boys for 4 girls? or 2:4? let's see.

$\bf \cfrac{boys}{girls}\qquad 12:24\qquad \cfrac{12}{24}\implies \boxed{\cfrac{1}{2}}
\\\\\\
\cfrac{boys}{girls}\qquad 2:4\qquad \cfrac{2}{4}\implies \boxed{\cfrac{1}{2}}$

you could start simplifying the 12/24 fraction by dividing by some common multiple, say 2, and get 6/12, then divide by 3 and get 2/4 and stop there.

then you'll notice that 12/24 is really 2/4 in disguise.

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3 years ago

What is the value of this expression?<br> 49 - (11 – 4)

Illusion [34]

Answer:

Step-by-step explanation:

11 - 4 = 7

49 - 7 = 42

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3 years ago

Read 2 more answers

Help plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Setler79 [48]

Answer:

diameter = 3,600 units

Step-by-step explanation:

Let $\pi$ = 3.14

C = 2 $\pi$ r

11,304 = 2(3.14)r

r = 1,800

d = 2r = 2(1,800) = 3,600

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2 years ago