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marissa [1.9K]
3 years ago
12

What is the final sum of 3(4+9) = ?

Mathematics
2 answers:
Mandarinka [93]3 years ago
6 0

Answer:

39 is the answer

Step-by-step explanation:

12+27=39

otez555 [7]3 years ago
6 0

Answer: 39

Step-by-step explanation: You have to add what is in the parentheses first

(in this case, 4 and 9)

after you get the sum, you multiply it by whatever is outside of the parentheses

this gives you 13•3 which equals 39.

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A system of two equations has no solution. One equation is -15x+y=18.
DerKrebs [107]

A.

If you multiply the original equation by 3 you get -45x+3y=54, which is the exact same as A, therefore they have infinite solutions.

5 0
3 years ago
Leda is ten years older than Pat. Write an algebraic expression that models Leda’s age with respect to Pat’s age.
iogann1982 [59]

Answer:

  • l = p + 10

Step-by-step explanation:

Let Leda's age is l and Pat's age is p.

<u>The expression would be:</u>

  • l = p + 10
7 0
2 years ago
Read 2 more answers
Chris has 7/8 yards of purple ribbon and one whole one over 6 yards of ribbon Chris has a total of three holes to over 3 yards o
MaRussiya [10]

Complete question :

Chris has 7/8 yards of purple ribbon and 1 1/6 yards of green ribbon. Chris has a total of 3 2/3 yards of ribbon. How many yards of Chris's ribbon are neither purple nor green.

Answer:

1.625 yards

Step-by-step explanation:

Purple ribbon = 7/8 yards

Green ribbon = 1 1/6 yards = 7/6 yards

Total ribbon = 3 2/3 yards = 11/3 yards

Ribbon that is neither purple nor green :

Total ribbon - (green + purple ribbon)

7/8 - (7/6 + 7/8)

11/3 - (28 + 21) / 24

11/3 - 49/24

= 1.625 yards

8 0
3 years ago
The measure of five of of the interior angles of a hexagon are 150, 100, 80, 165, and 150. what is the measure of the sixth inte
givi [52]

Answer:

75°

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Here n = 6 , then

sum = 180° × 4 = 720°

let x be the sixth angle, then sum and equate to 720°

150 + 100 + 80 + 165 + 150 + x = 720

645 + x = 720 ( subtract 645 from both sides )

x = 75

The sixth interior angle is 75°

7 0
2 years ago
A shoreline is eroding at a rate of 1/3 3 foot per 3 months. How many feet are eroding per year?
salantis [7]
7ft if 3+1/3 hopefully this helps i did hwat i can










4 0
3 years ago
Read 2 more answers
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