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3 years ago

Solve for x: -(10+3x)=44

Mathematics

1 answer:

boyakko [2]3 years ago

5 0

Answer:

x=-18

Step-by-step explanation:

-(10+3x)=44

substitute the minus sign to the bracket

-10-3x=44

-3x=44+10

-3x=54

divide both sides by -3

so x=-18

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3 years ago

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Sholpan [36]

Answer:

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2 years ago

if i want the track to have a circumference of 400 feet what does the diameter of the track need to be?

natta225 [31]

Answer:

The diameter of the track needs to be 127.27 feet

Step-by-step explanation:

* Lets explain how to solve the problem

- The circumference of any circle is C = 2πr, where r is the radius

of the circle and π is the constant ratio between the

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approximately is 22/7 or 3.14

- The diameter of any circle is twice its radius

* <u><em>Lets solve the problem</em></u>

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∵ π = 22/7

∴ 400 = 2 × 22/7 × r

∴ 400 = 44/7 r

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6 0

3 years ago

Betsy has ten and one half ounces of gold and and uses four fifths of it to make earrings. How much gold does she use to make th

andrew11 [14]

Answer:

Betsy uses $8\frac{4}{10}$ gold to make the earrings

Step-by-step explanation:

Given:

Amount of gold with Betsy = ten and one half ounces

Amount of gold Betsy used to make earrings = four fifths

To Find:

How much gold is used by Betsy to make earrings = ?

Solution:

Let the quantity of gold used by Betsy to make earring be X

Then

X = four fifths of ten and one half

X = $\frac{4}{5} of 10 \frac{1}{2}$

X = $\frac{4}{5} \times \frac{20 + 1}{2}$

X = $\frac{4}{5} \times \frac{21}{2}$

X= $\frac{84}{10}$

Reducing the fraction to lower terms and converting into mixed fraction we get,

X= $8\frac{4}{10}$

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4 years ago

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tamaranim1 [39]

Answer:

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Step-by-step explanation:

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4 years ago