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ziro4ka [17]
4 years ago
6

Use front-end estimation to estimate the sum. 13.3+2.8+5.6 a.about 20 b. about 23 c. about 22 d.about 25

Mathematics
1 answer:
poizon [28]4 years ago
5 0

Answer:

C. About 22

Step-by-step explanation:

13.3 + 2.8 + 5.6

= 21.7

Since 21.7 is close to about 22, we can conclude that C is the final answer.

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Find the equation of the line that passes through the points (6,14) and is parallel to y=-4/3x-1
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Answer:

y= -4/3 + 22

Step-by-step explanation:

y= -4/3x -1

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14= -8 + b

22= b

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3 years ago
PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!!
larisa86 [58]

Answer: (C) divide by 1

<u>Step-by-step explanation:</u>

when dividing by x - 1, set the expression equal to zero to find the zero.  That is actually what you are dividing by:

x - 1 = 0   ⇒   x = 1

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3 years ago
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After the addition of an acid, a solution has a volume of 90 milliliters. The volume of the solution is 3 milliliters greater th
11111nata11111 [884]

Answer: 21.75\ milliliters

Step-by-step explanation:

Let be "x" the original volume of the solution (in milliliters) before the acid was added and "y" the volume of the solution (in milliliters) after the addition of the acid.

Set up a system of equations:

\left \{ {{x+y=90} \atop {y=3x+3}} \right.

Applying the Substitution Method, you can substitute the second equation into the first equation and then solve for "x":

x+y=90\\\\x+(3x+3)=90\\\\4x+3=90\\\\x=21.75

6 0
4 years ago
The product of two and a number, divided by five
DENIUS [597]

<em>Question</em><em>:</em><em> </em><em>t</em><em>he product of two and a number, divided by five</em>

<em>Let</em><em> </em><em>the</em><em> </em><em>number</em><em> </em><em>be</em><em> </em><em>'a'</em><em>.</em>

<em>Answer</em><em>:</em><em> </em><em>2</em><em>a</em><em>/</em><em>5</em>

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