3 years ago

One student says a decimal can reach one million. The other says it cannot how can he defend his claim.

Mathematics

1 answer:

Lena [83]3 years ago

5 0

If the number is big enough there can be up to an infinite number of decimals

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Over the last 16 years Johanna saved some of her pay each month. She now has $46000. She decided to invest some of it at 5.25%

goldfiish [28.3K]

Answer:

what is the question?

do you have to find how much she is investing?

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2 years ago

The square root of 5x equals 10<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B%3F%7D%205x%20%3D%2010" id="TexFormula1" title

Mazyrski [523]

X = 20

Square both sides:
5x = 100
x = 20

6 0

3 years ago

Find the constant of proportionality k. Then write an equation for the relationship between x and y

ExtremeBDS [4]

Question:

Find the constant of proportionality k. Then write an equation for the relationship between x and y

$\begin{array}{ccccc}x & {2} & {4} & {6} & {8} \ \\ y & {10} & {20} & {30} & {40} \ \ \end{array}$

Answer:

(a) $k = 5$

(b) $y = 5x$

Step-by-step explanation:

Given

$\begin{array}{ccccc}x & {2} & {4} & {6} & {8} \ \\ y & {10} & {20} & {30} & {40} \ \ \end{array}$

Solving (a): The constant of proportionality:

Pick any two corresponding x and y values

$(x_1,y_1) = (2,10)$

$(x_2,y_2) = (6,30)$

The constant of proportionality k is:

$k = \frac{y_2 - y_1}{x_2 - x_1}$

$k = \frac{30-10}{6-2}$

$k = \frac{20}{4}$

$k = 5$

Solving (b): The equation

In (a), we have:

$(x_1,y_1) = (2,10)$

k can also be expressed as:

$k = \frac{y- y_1}{x- x_1}$

Substitute values for x1, y1 and k

$5 = \frac{y- 10}{x- 2}$

Cross multiply:

$y - 10 = 5(x - 2)$

Open bracket

$y - 10 = 5x - 10$

Add 10 to both sides

$y - 10 +10= 5x - 10+10$

$y = 5x$

6 0

3 years ago

Find the GCF of the list of terms<br> a(b+c), 5(b+c)

Paladinen [302]

a(b+c) and 5(b+c)

Answer: GCF = (b+c)

8 0

4 years ago

If a $200 billion increase in investment spending creates $200 billion of new income in the first round of the multiplier proces

telo118 [61]

The multiplier would be 4, I believe so.

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3 years ago