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3 years ago

Explain the answer with briefs steps

Mathematics

1 answer:

aliina [53]3 years ago

6 0

Step-by-step explanation:

steps are in picture above.

Note:if you need to ask any question please let me know.

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If the consumer price index changes from 125 in september to 150 in october, what is the rate of inflation?

allochka39001 [22]

The rate of inflation is analogous to the percent difference of the original to the new price. Thus, its formula is written as:

Rate of Inflation = [New price - Base price]/Base Price * 100
Rate of inflation = (150 - 125)/125 * 100 = 20%

So, the answer is A.

4 0

3 years ago

Read 2 more answers

M is the midpoint of CD. Given the coordinates of one endpoint C(10,-5) and the midpoint M(4, 0), find the coordinates of the ot

mash [69]

Answer:

D(-2, 5).

Step-by-step explanation:

We are given that M is the midpoint of CD and that C = (10, -5) and M = (4, 0).

And we want to determine the coordinates of D.

Recall that the midpoint is given by:

$\displaystyle M = \left(\frac{x_1 + x_2}{2} , \frac{y_1 + y_2}{2}\right)$

Let C(10, -5) be (x₁, y₁) and Point D be (x₂, y₂). The midpoint M is (4, 0). Hence:

$\displaystyle (4, 0) = \left(\frac{10+x_2}{2} , \frac{-5+y_2}{2}\right)$

This yields two equations:

$\displaystyle \frac{x_2 + 10}{2} = 4\text{ and } \frac{y_2 - 5}{2} = 0$

Solve for each:

$\displaystyle \begin{aligned}x_2 + 10 &= 8 \\ x_2 &= -2 \end{aligned}$

And:

$\displaystyle \begin{aligned} y_2 -5 &= 0 \\ y_2 &= 5\end{aligned}$

In conclusion, Point D = (-2, 5).

5 0

3 years ago

Am i right or am i wrong

frutty [35]

Answer:

you're right

6 0

3 years ago

What sales tax, at a rate of 5%, must you pay on the purchase of a computer hard drive that costs $229?

Nata [24]

Multiply 5% by 229

So, .05 x 229 = 11.45

$11.45 tax

4 0

3 years ago

Johnnas reading rate is 150 words per minute she is reading a 364 page book that has about 275 words on each page at this rate w

ch4aika [34]

Answer:

11 hrs 1 min (i think so based on math)

Step-by-step explanation:

If Johnna's reading rate is 150 words per min and there are 364 pages with about 275 words, you need to multiply 364 and 275 to get 100100 and divide that by 150 to get 667.3333333 round to the nearest tenth which will give you 667.3 and divide that by 60 because there are 60 minutes in an hour to get 11.12222222 and round that to the nearest tenth to get 11.1 which means it will take Johnna 11 hours and 1 minute to read the book. I hope this is correct I'm really sorry if it isn't. :P

8 0

3 years ago

Explain the answer with briefs steps​

Explain the answer with briefs steps