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Katen [24]
4 years ago
10

What is x in -3x-8y=20, -5x+y=19

Mathematics
1 answer:
Dafna1 [17]4 years ago
3 0

Answer:

x = -4

Step-by-step explanation:

solving simultaneously

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A ferris wheel has a radius of 50 feet, how many feet would it take to go around the entire ferris wheel (the circumference)?
motikmotik

Answer: 314.16 or 100 pie

Step-by-step explanation:

2(50)pie

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3 years ago
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A restaurant offers 6 choices of appetizer, 8 choices of a main meal, and 5 choices of dessert. A customer can choose to eat jus
Katen [24]

Answer:

377 choices

Step-by-step explanation:

From the above question, we are told that

A restaurant offers 6 choices of appetizer, 8 choices of main meal and 5 choices of dessert. A customer can choose to eat just one course, or two different courses, or all three courses.

Let us represent each choice by :

A = Appetizer = 6

M = Main meal = 8

D = Dessert = 5

a) The combination of the 3 choices together

AMD=6 × 8 × 5=240

b) AM= Appetizer and Main meal

= 6 × 8 = 48

c) AD= Appetizer and Dessert

= 6 × 5 = 30

d) MD = Main meal × Dessert

= 8 × 5 = 40

e) A,M,D (each alone)=

Appetizer + Main meal + Dessert

= 6 + 8 + 5

= 19

Assuming all choices are available, how many different possible meals does the restaurant offer?

This is calculated as:

AMD + AM + AD + MD + A,M,D

240 + 48 + 30 + 40 + 19

= 377 choices

6 0
3 years ago
Elen planned to read a book of 40 pages in two days. On the first day, she read 4 hours reading 7 pages per hour. On the second
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Ok so 7 times 4 is 28 so she read 28 the first day. For the second day since 40-28= 12, 12 divided by 2 is 6. So she read 6 pages per hour.

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What is the elapsed time between 2:45 and 6:55?
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The correct answer is 4 hours and 10 minutes 
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A restless point moved from point 12 to the left at the speed of 5/6 units per minute. Where will it be in 10.2 minutes?
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78 is the anwser to this problem

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