3 years ago

Round 684 to the nearist hundred

Mathematics

1 answer:

Iteru [2.4K]3 years ago

7 0

So 684 is rounded to 700

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Taya2010 [7]

Answer:

a:d=7:9

Step-by-step explanation:

We have a system with 3 equation:

$\frac{a}{b}=\frac{2}{3}\\\frac{b}{c}=\frac{4}{3}\\\frac{c}{d}=\frac{7}{8}$

If we multiply all of these equations, then we have:

$\frac{a}{b}*\frac{b}{c}*\frac{c}{d}=\frac{2}{3}*\frac{4}{3}*\frac{7}{8}\\\frac{a*b*c}{b*c*d}=\frac{2*4*7}{3*3*8}\\\frac{a}{d}=\frac{56}{72}$

If we simplify this fraction dividing by 9, then:

$\frac{a}{d}=\frac{56:9}{72:9}=\frac{7}{9}$

Therefore, a:d=7:9

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2 years ago

What is the slope of the line that contains the points (7,-1) and (-2,2)?

Vesnalui [34]

Answer: -1/3

(7,-1)= (x1,y1)

(-2,2)= (x2,y2)

Slope= $\frac{y2-y1}{x2-x1}$

= $\frac{2-(-1)}{-2-7}$

= $\frac{1}{-3}$

1/-3 is the same thing as -1/3

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3 years ago

Tom and Jerry went out for dinner. They ordered a nice meal and their bill was $300 . They also paid 15% tax on there bill. What

ELEN [110]

45, right? 300 plus the 15 percent which is .15, so we multiply that to 300 and we get 45. So in total they paid 345. Was Jerry Tom's snack?

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2 years ago

What is one value of x that makes the equation-16x^2+121=0 true

jeyben [28]

Answer:

x = ±11/4

Step-by-step explanation:

Rewrite -16x^2+121=0 as 16x^2 - 121=0 and then as 16x^2 = 121.

Take the square root of both sides. This returns 4x = ±11, and so:

x = ±11/4

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2 years ago

If I=300 dollars, P=5000 dollars,and T=10years what is R

Iteru [2.4K]

Is there any more context to your question?

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3 years ago