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amid [387]
3 years ago
14

Use the expression (a + b)(c - d) + 9e to find an example of each kind of expression

Mathematics
1 answer:
Minchanka [31]3 years ago
7 0

Answer:

Difference: c-d

variable: a, b, c, d, e.

coefficient: 9

Step-by-step explanation:

Difference is c - d

Variables can be dependent or independent: a, b, c, d and d

The coefficient is a number or other known factor (a constant) by which another number or factor (a variable) is multiplied: 9

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Convert 9 feet and 4 1/2 inches to inches
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Answer:

112 1/2

Step-by-step explanation:

9x12 = 108

108 + 4 1/2 = 112 1/2

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3 years ago
If a rate is $56 per 7 hours is reduced to a unit rate, results is . do not include units in your answer
DiKsa [7]
You'd probably need to divide 56 by 7 which gives you 8
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3 years ago
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Helga [31]

Answer:

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6 0
3 years ago
A company mixes two kinds of cleansers to get a blend they sell for 59 cents a liter. One of the cleansers costs 50 cents per li
Lilit [14]

Answer:

Cleanser that costs 50 cents is 1400 liters, Cleanser that costs 80 cents is 600 liters.

Step-by-step explanation:

We can solve this by using <em>simultaneous equations</em>:

  1. Let us express the question in terms of equations

Let a be cleanser at 50 cents and let b be the cleanser at 80 cents.

Equation 1: 0.5a + 0.8b = 0.59(a+b)

Equation 2: a + b = 2000

From equation 2, a = 2000 - b (Let's call this equation 3)

    2. Substituting equations 2 and 3 in Equation 1:

0.5a + 0.8b = 0.59(a+b)

0.5(2000 - b) + 0.8b = 0.59(2000)

1000 - 0.5b + 0.8b = 1180

0.3b = 180

b = 600

Substitute in equation 3:

a = 2000 - 600

a = 1400

As a note, I formed equation 1 because I know for a fact the cost per liter of a and b. I also know it is sold at 0.59 cents per liter. We are selling 2000 liters in this instance, therefore 0.59(2000) = 1180, which in this case is the selling price.

4 0
3 years ago
Help plz I need help
Whitepunk [10]
The first column is meters and the second column is centimeters. =)
8 0
3 years ago
Read 2 more answers
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