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Nonamiya [84]
3 years ago
10

What is the first step in estimating 56×27

Mathematics
1 answer:
Law Incorporation [45]3 years ago
5 0

The first step is to determine how accurate your estimation needs to be. Then create the iniatial estimate.

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A coffee supply store waits until the orders for its special blend reach 100 pounds before making up a batch. Columbian coffee s
yan [13]
X - Columbian coffee ( in pounds),
y - Brazilian coffee ( in pounds );
x + y = 100
8.85 x + 3.85 y = 6.55 ( x + y )
----------------------------------------
x = 100 - y
8.85 ( 100 - y ) + 3.85 y = 6.55 * 100
855 - 8.55 y + 3.85 y = 655
- 5 y = - 230
y = ( - 230 ) : ( - 5 )
y = 46
x = 100 - 46
x = 54
Answer: 54 pounds of Columbian coffee and 46 pounds of Brazilian coffee should be used.
5 0
3 years ago
Some carpet cleaning costs are shown in the table. The relationship is linear. Find and interpret the rate of change
Artemon [7]
Y = m x + b , where m is the slope. The slope is the rise over the run or the change in x ( rooms cleaned ) over the change in y ( cost ).
125 = m * 1 + b
175 = m * 2 + b
-----------------------
b = 125 - m
175 = 2 m + 125 - m
m = 175 - 125
m = 50 ( the rate of change ),  b = 75
The formula is:  y = 50 x + 75
It means that the starting cost will be $75 and that for every room cleaned, the cost will rise for $50. 
4 0
3 years ago
Read 2 more answers
Suppose you roll two number cubes. What is the probability of getting:
Usimov [2.4K]

Answer:

are a, b, and c the options or are they different questions?

8 0
2 years ago
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Consider the equation y = –3(x – 3) Which equation, when graphed with the given equation, will form a system with lines that ove
pentagon [3]

Answer:

y=-3x+9 (D)

Step-by-step explanation:

8 0
3 years ago
When f(x)=-3, what is x?
Anna35 [415]

Answer:

Step-by-step explanation:

For example, if f(x)   =  2x   + 7

      then         f(-3) = 2(-3) + 7

                     f(-3) = 1

3 0
3 years ago
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