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user100 [1]
3 years ago
6

#1 Jo estimates that a piece of ribbon measures 8.5 inches. If it actually measures 7.8 inches, what is the percent error of Jo’

s estimate? *
Mathematics
2 answers:
Alla [95]3 years ago
8 0

Answer:

8.97 %

Step-by-step explanation:

error is 8.5 - 7.8 inches = 0.7 inches

now

x % of 7.8  = 0.7

7.8x/100 = 0.7

x = 70/7.8 %

= 8.97 %

Lina20 [59]3 years ago
7 0

Answer:

Jo's estimate was 109% the actual answer

Step-by-step explanation:

109% of 7.8 is 8.502, round up to 8.5

May I have brainliest please? :)

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WINSTONCH [101]
<h3>Here is your Answer </h3>

\frac{1}{2} \times - 2 + \frac{1}{3} \times - 5 \\  \\  = \frac{1}{ \cancel2} \times  \cancel{- 2} + \frac{1}{3} \times - 5 \\  \\  = 1 \times  - 1 +  \frac{1}{3}  \times  - 5 \\  \\  =  - 1 + ( -  \frac{5}{3} ) \\  \\   =  - 1 -  \frac{5}{3}  \\  \\  =  \frac{ - 3 - 5}{3}  \\  \\  =  \frac{ - 8}{3}  =  - 2 \frac{2}{3}

<h3>Hope This Helps You</h3>

8 0
3 years ago
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meriva
Now let’s evaluate this down if b=3 then you do 3x3 because b is squared which equals 9 then we do 6b which is 18, so 9-18 is (-9) then we do -9 - 5 which is -14
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2 years ago
PLEASE HELP ME 100 POINTS AND BRAINLY!!!
vredina [299]

Answer:

1. 220 minutes

2. $45.6

Step-by-step explanation:

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Quadrilateral ABCD is dilated by a scale factor of 2 centered around (2,2).
ANEK [815]

Answer:

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Step-by-step explanation:

B'D' will be twice as long as BD and run through (2, 2).

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2 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
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