What is the main task described in the introduction of the video?

Proportions and Ratios in Blends

Interactive Video
•
Mathematics
•
6th - 8th Grade
•
Hard

Olivia Brooks
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To find the total weight of coffee blends.
To determine the correct proportion of two coffee blends.
To calculate the cost of coffee blends.
To identify the origin of the coffee beans.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first ratio set up in the video?
18:60
60:18
40:18
18:40
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the second ratio set up in the same way as the first?
To use different proportions for different days.
To maintain the same proportion of blends.
To ensure the total weight is the same.
To simplify the calculation.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the unknown variable in the second ratio?
The amount of Rift Valley blend.
The total weight of the blend.
The amount of Breakfast blend.
The cost of the blend.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What mathematical operation is used to solve for the unknown in the proportion?
Cross-multiplication
Subtraction
Addition
Division
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of cross-multiplying 60 and X with 18 and 40?
60X = 900
60X = 720
60X = 800
60X = 640
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you solve for X after cross-multiplying?
Divide both sides by 60.
Multiply both sides by 60.
Subtract 60 from both sides.
Add 60 to both sides.
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