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Marizza181 [45]
3 years ago
15

7. 2(a + 1) = 2(2-3)​

Mathematics
1 answer:
sdas [7]3 years ago
4 0

Answer:

#YOUCHEAPSUCKA

the answers is = -2

Step-by-step explanation:

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Find the product and explain the process and reasoning step by step <br><br> $0.79 × 3.7 =
andrezito [222]

The units of the first number are "dollars." The second number has no apparent units, so we'll consider it a "pure number". This means the product will have the units of "dollars."

The two numbers together have 2+1=3 digits to the right of the decimal point(s). This means the final product will have 3 digits to the right of the decimal point. Since one of the factors is "dollars," it seems likely the result will need to be rounded to cents (2 decimal places). We'll provide the answer both ways (with 3 and with 2 decimal places.)

With these preliminaries out of the way, we have the problem of multiplying

... 79 × 37

There are numerous methods taught for finding this product. In the end, they all amount to multiplying every digit in one number by every digit in the other number and adding the results with appropriate place values. Several methods use 2-dimensional tables or arrays in their process. Here, we will use text on a line.

... 79 × 37 = (70 +9) × (30 +7)

... = 70×30 + 9×30 + 70×7 + 9×7

... = 2100 + 270 +490 + 63

... = 2100 +760 +63

... = 2860 +63

... = 2923

Putting the decimal point 3 places from the right, and adding the dollar sign gives our product:

... $0.79 × 3.7 = $2.923 ≈ $2.92

5 0
3 years ago
Read 2 more answers
Which statement about is true? X = 1 is an extraneous solution. X = 1 is a true solution x = 3 is an extraneous solution. X = 3
DanielleElmas [232]

Answer:

x = 3 is an extraneous solution

Step-by-step explanation:

7 0
2 years ago
42/40 into a mixed number is??
SSSSS [86.1K]
Hello there!

So, as we see that 42 is more than the denominator, so, we would have to see by how much it would be over.

40-42=2.

So, sense we have an whole number which would be (1)

Your answer: \boxed{\boxed{\bf 1\frac{2}{40} }}
6 0
3 years ago
Find the mean of this set of numbers.
Marysya12 [62]
First step when finding the mean is to add all the values together
7 + -9 + 6 + -10 + -13 + -5
To make this easier, first add all the positive numbers 7 + 6 = 13
Then add (basically take away) the minus values one by one
13 - 9 = 4
4 - 10 = -6
-6 - 13 = -19
-19 - 5 = -24
Next step is to divide this total by the number of values there were
In this case, there were 6 values
-24 / 6 = -4
D. -4
8 0
2 years ago
Read 2 more answers
There are 86 people coming to my party and each person will need a cup how many packages of cups will i buy if one package of cu
marusya05 [52]

Answer:

i think its 4 packages

Step-by-step explanation:each package is 25 so if you get 2 its 50 + another package would be 75  so you need one more.

hope this helps

5 0
3 years ago
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