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dedylja [7]
3 years ago
11

the price of coffee has dropped to $2.15 today Yesterday's price was $2.40 . Find the percentage decrease. Round your answer to

the nearest tenth of a percent
Mathematics
1 answer:
Ratling [72]3 years ago
6 0
0.9% decrease

$2.15 divided by $2.40 = 0.8958333  round to the nearest tenth of a percent

= 0.9%   check your answer $2.40 x 0.8958333 = $2.14999992 rounded to $2.15  new price
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for this question you need to take the 12p and 700 and add then dived by 2x which then gives you your answer

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Find the slope and the y-intercept of the graph of the linear equation y=5/4x-7. The slope is ?, and the y-intercept is ?.
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Step-by-step explanation:

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Find the sum of a finite geometric sequence from n = 1 to n = 7, using the expression −4(6)n − 1.
Verizon [17]

Answer:

<h2>-223,948</h2>

Step-by-step explanation:

The formula of a sum of terms of a gometric sequence:

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a₁ - first term

r - common ratio

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Calculate the common ratio:

r=\dfrac{a_{n+1}}{a_n}\\\\a_{n+1}=-4(6)^{n+1-1}=-4(6)^n\\\\r=\dfrac{-4(6)^n}{-4(6)^{n-1}}=6^n:6^{n-1}\\\\\text{use}\ a^n:a^m=a^{n-m}\\\\r=6^{n-(n-1)}=6^{n-n+1}=6^1=6

\text{Substitute}\ a_1=-4,\ n=7,\ r=6:\\\\S_7=-4\cdot\dfrac{1-6^7}{1-6}=-4\cdot\dfrac{1-279936}{-5}=-4\cdot\dfrac{-279935}{-5}=(-4)(55987)\\\\S_7=-223948

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Round 7.255 to the nearest whole number
Nat2105 [25]

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

                  Hello!

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

❖ 7.255 to the nearest whole number is 7.

The numbers to the right of the decimal point are less than 500 so we round down. If the numbers were above 500, we would round up.

~ ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘꜱ! :) ♡

~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ

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