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just olya [345]
3 years ago
11

Kai calculates that he spends 15% of the school day in science class. If he spends 42 minutes in science class, how many minutes

does Kai spend in school each day? Can someone tell me how to do that with fractions and cross products or something

Mathematics
1 answer:
MissTica3 years ago
6 0
You need to first multiply 100 by 42 then divide by 15

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What is -3/2x |x-22| +33
bogdanovich [222]

Answer:

Find the domain by finding where the expression is defined. The range is the set of values that correspond with the domain.

Domain: (−∞,0)∪(0,∞),{x|x≠0}(-∞,0)∪(0,∞),{x|x≠0}

Range: ,{x|}

6 0
3 years ago
A catering service offers 5 appetizers,4 main courses, and 8 desserts. A customer is to select 4 appetizers,2 main courses,and 3
Alisiya [41]

Answer:

468 ways

Step-by-step explanation:

Given: A catering service offers 5 appetizers, 4 main courses, and 8 desserts

To find: number of ways a customer is to select 4 appetizers, 2 main courses,and 3 desserts.

Solution:

A permutation is an arrangement of elements such that order of elements matters and repetition is not allowed.

Number of appetizers = 5

Number of main courses = 4

Number of desserts = 8

Number of ways of choosing k terms from n terms = nPk=\frac{n!}{(n-k)!}

Number of ways a customer is to select 4 appetizers, 2 main courses,and 3 desserts =  5P4+4P2+8P3

=\frac{5!}{(5-4)!}+\frac{4!}{(4-2)!}+\frac{81}{(8-3)!}\\=5!+\frac{4!}{2!}+\frac{8!}{5!}\\=5!+(4\times 3)+(8\times 7\times 6)\\=120+12+336\\=468

So, this can be done in 468 ways.

7 0
3 years ago
Need to find the missing length and round to nearest tenth. I'm a bit confused.
astraxan [27]

ANSWER

15.9

EXPLANATION

Given:

A right-triangle with two sides and an angle

Desired Outcome:

The value of x

Apply the SOH CAH TOA rule

\begin{gathered} tan\theta=\frac{x}{34} \\ x=34\times0.4663 \\ x=15.8544 \end{gathered}

Hence, the value of x is 15.9 (rounded to the nearest tenth).

5 0
1 year ago
Write an equation in slope-intercept form for the line with the given slope, passing through the given point. slope=3, (3,2)
Ugo [173]

Answer:

the answer is D because i asked SIRI and BIXBI and they both said the same answers

Step-by-step explanation:

8 0
3 years ago
Jenna bought 6 pounds of apples for $7.38. What is the unit price per pound of apples?
Leto [7]
6 pounds of apples cost $7.38

1 pound of apples would cost $7.38 / 6 = $1.23

So the unit price of apples = $1.23 per pound

I hope this helps.
7 0
3 years ago
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