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4 years ago

Write five million, seven hundred thousand,seven hundred fifty-two using digits

Mathematics

2 answers:

OlgaM077 [116]4 years ago

7 0

5,700,752 hope i helped

seraphim [82]4 years ago

5 0

5,700,752 is the answer your looking for

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x is directly proportional to y and inversely proportional to z. if x= 1/2 when y = 3/4 and z=2/3, find x when y= 7/8 and z = 7/

ipn [44]

Answer:

1/2

Step-by-step explanation:

x is directly proportional to y (this means y will go on top because of the directly part) and inversely proportional to z (this means z will go on bottom due to the inversely part).

There is a constant k such that:

$x=k \cdot \frac{y}{z}$ .

Contant means it will never change. It will not care what (x,y,z) you use, it will remain the same.

We will use the first point to find k and then that k will still be there no matter what (x,y,z) they give you.

We have (1/2 , 3/4 , 2/3) is on our graph of the equation:

$x=k \cdot \frac{y}{z}$ .

Insert the numbers:

$\frac{1}{2}=k \cdot \frac{\frac{3}{4}}{\frac{2}{3}}$

Multiply both sides by $\frac{2}{3}$ :

$\frac{1}{2}\cdot \frac{2}{3}=k \cdot \frac{3}{4}$

Simplify left hand side:

$\frac{1}{3}=k \cdot \frac{3}{4}$

Multiply both sides by 4:

$\frac{4}{3}=k \cdot 3$

Multiply both sides by 1/3 (or you can say divide by 3):

$\frac{4}{9}=k$

So k=4/9 no matter the (x,y,z).

$x=\frac{4}{9} \cdot \frac{y}{z}$

We are asked to find x given y=7/8 and z=7/9.

Input these numbers:

$x=\frac{4}{9} \cdot \frac{\frac{7}{8}}{\frac{7}{9}}$

Change the division to multiplication:

$x=\frac{4}{9} \cdot \frac{7}{8} \cdot \frac{9}{7}$

I see a 7 on top and bottom that I can cancel:

$x=\frac{4}{9} \cdot \frac{1}{8} \cdot \frac{9}{1}$

I see a 9 on top and bottom that I can cancel:

$x=\frac{4}{1} \cdot \frac{1}{8} \cdot \frac{1}{1}$

Let's go ahead and multiply and reduce more later if we can.

Multiply straight across on top.

Multiply straight across on bottom.

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

Divide top and bottom by 4:

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

4 0

3 years ago

Which of the following expressions are equivalent to -44+ 40?

djyliett [7]

Answer:

answer for your question is B 2(-22+20)

5 0

3 years ago

The function y=-5x+2 is transformed by reflecting it over the y axis. What is the equation of the new function?

vampirchik [111]

y = mx + b

When a function is reflected over the y-axis, the b (2) stays the same but the slope (m) changes to its opposite sign.

since the slope is negative in this equation, it will become positive.

so the new fuction will be

y = 5x + 2

7 0

3 years ago

Write the equation, in slope-intercept form, of the line with slope 9 and y intercept (0, -13).

fomenos

Answer:

y= 9x-13

Step-by-step explanation:

y=mx+b

m=slope

b= y intercept

4 0

3 years ago

An angle measures 44° less than the measure of its complementary angle. What is the measure of each angle?

ryzh [129]

a+b=90°

a=b+44°

b+44°+b=90°

2b+44°=90°

2b=90°-44°

2b=46°

b=23°

a=23°+44°

a=67°

8 0

3 years ago