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m_a_m_a [10]
3 years ago
7

1 and 3/10 * 18 How would you do this???

Mathematics
2 answers:
jekas [21]3 years ago
7 0

Answer:

23 2/5

Step-by-step explanation:

convert mixed numbers to improper fractions:  1 3/10=13/10

13/10*18

convert element to fraction: 18=18/1

=18/1*13/10

cross cancel common factor:2

=13/5*9/1

multiply fractions

=13*9/5*1

=117/5

convert improper fraction to mixed numbers

23 2/5

dimaraw [331]3 years ago
3 0

Answer:

23.4

Step-by-step explanation:

1. turn fraction into improper (multiply denominator by whole number tgen add the numerator)

2. just multiply straight across

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Write an equation bassing through the boint and perpendicular to thr given line.
nordsb [41]
The equation would be y=-6x/5 +19 I think
6 0
3 years ago
Needing help with getting the slope
bixtya [17]

Answer:

The answer is 2/5

Step-by-step explanation:

I found 2 points and did y2-y1/ x2-x1 and got 2/5. And then I tested it and it worked.

6 0
3 years ago
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At 6:00 a.m., the outside temperature was –14.4⁰. By noon, the outside temperature had dropped 8.1⁰. What was the outside temper
Advocard [28]
-14.4 - 8.1 = - 22.5

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5 0
3 years ago
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3. Multiply the polynomials (a^2 + 3a – 4) and (2a^2 – a + 5). Simplify the answer. Show your work.
Elza [17]

Answer:

2a^4+5a^3-6a^2+19a-20

Step-by-step explanation:

(a^2+3a-4)(2a^2-a+5)

2a^4-a^3+5a^2+6a^3-3a^2+15a-8a^2+4a-20

2a^4-a^3+6a^3+5a^2-3a^2-8a^2+15a+4a-20

2a^4+5a^3+2a^2-8a^2+19a-20

2a^4+5a^3-6a^2+19a-20

8 0
3 years ago
Find a and b. А E b B 409 с D​
babymother [125]

Answer:

a = 70°, b = 140°

Step-by-step explanation:

use alternate interior angles

The interior angles of a straight line are 180°

a = 180°-110° = 70°

b = 180°-40° = 140°

//I'm sorry, but I'm not very fluent in English.

7 0
2 years ago
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