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3 years ago

kaleb had 63 dollars. if he spent 7 dollars on new books, what is the ratio of money he still has to money he's spent?

Mathematics

2 answers:

tekilochka [14]3 years ago

8 0

The ratio is 56:7.

You can reduce it to 8:1.

AlexFokin [52]3 years ago

3 0

He would have 56 dollars left

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Without using logarithm tables, find the value of x given that: 2log2/3 = 1/2logx - log 18 + log 16

sweet-ann [11.9K]

Answer:

$x=\frac{1}{4}$

Step-by-step explanation:

Given:

$2log(\frac{2}{3})=\frac{1}{2}log(x)-log(18)+log(16)$

Use the Power Rule Law:

$log(\frac{2}{3}^2)=log(x^{1/2})+log(16)-log(18)$

Use the Quotient Rule Law:

$log(\frac{4}{9})=log(\sqrt{x})+log(\frac{16}{18})$

Use the Product Rule Law:

$log(\frac{4}{9})=log(\frac{16\sqrt{x}}{18})$

Simplify:

$log(\frac{4}{9})=log(\frac{8\sqrt{x}}{9})$

$\frac{4}{9}=\frac{8\sqrt{x}}{9}$

$4=8\sqrt{x}$

$\frac{4}{8}=\sqrt{x}$

$\frac{1}{2}=\sqrt{x}$

$\frac{1}{4}=x$

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2 years ago

Find the measure of ∠C if

V125BC [204]

$(32x+20) + (72x+20) + (52x+40) + (32x+10)=180 \\ 32x+72x+52x+32x +20+20+40+10 =180 \\ 188x+90=180 \\ -90 \\ 188x=90 \\ /188 \\ x=0.478
$
then $52(0.478)+40 \\ 24.856+40=64.856
$
∠C = 64.856

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Feliz [49]

The answer is b .....

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faust18 [17]

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Mariana [72]

The rays in the picture are:

A ray is a line segment with arrow head. The arrow head helps in pointing to the direction of the ray. The arrow head may appear at the both ends of a ray signify that the ray continues in both direction.

Often times in the field of science, rays are used to signify direction, while the length of the line segment signify magnitude.

Bearing in mind that ray can be in one direction or two directions, we now look at the picture to point out the rays to be:

Read more on rays here: brainly.com/question/23536244

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