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tamaranim1 [39]
3 years ago
11

Kai calculates that he spends 15% of a school day in science class. If he spends 75 minutes in science class, how many minutes d

oes Kai spend in school?
Mathematics
1 answer:
bazaltina [42]3 years ago
4 0

Answer:

500 minutes

Step-by-step explanation:

100% = x

15% = 75

We multiply 75 by 100 and divide the answer by 15

7500 / 15 = 500 minutes

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The length and width of a rectangle are measured as 27 cm and 50 cm, respectively, with an error in measurement of at most 0.1 c
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Answer:

7.7cm

Step-by-step explanation:

Area of a rectangle is expressed as

A = Length × Width

A = LW

Let dL and dW be the errors in the measurements.

If there is an error of at most 0.1cm each in the measurement, then dL = dW = 0.1cm.

The area of the rectangle with error will be expressed as A = LdW + WdL

Given L = 27cm and W = 50cm

A = 27(0.1)+50(0.1)

A = 2.7+5.0

A = 7.7cm

Hence, the maximum error in the calculated area of the rectangle is 7.7cm

7 0
3 years ago
Find the 15th term of the geometric sequence 2 , -8 , 32
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Answer:

first term (a)= 2

second term (b) = -8

common ratio (r) = -8/2 = -4

15th term = ar^ (n-1)

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Step-by-step explanation:

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2 years ago
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A pitcher contains 83.28 cups of iced tea. You drink 2.5 cups of the tea each morning and 0.75 cup of the tea each evening. When
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Step-by-step explanation:

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Matt calculations shows that the distance is 3/8 hours. While dividing 3/24 by 3, he doesn't take reciprocal of 3 as a result he get 9 on numerator and 24 on denominator. Simplified fraction of 9/24 is 3/8. But the correct answer should be 1/24 hours.

3 0
3 years ago
Read 2 more answers
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