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3 years ago

The expression 12x+15x-11x can be combined because of which property

Mathematics

2 answers:

Kazeer [188]3 years ago

7 0

The answer would be A. Commutative property of addition

Lisa [10]3 years ago

7 0

Answer:

Option A.

Step-by-step explanation:

Commutative property of addition says that if we add two or many numbers, order doesn't matter.

Let there are three numbers a, b, and c.

When we add them by commutative property, result will remain same.

If we add [(a + b)+ c] or [a + (b + c)], result will be same.

Therefore, 12x + 15x - 11x = (12 + 15 - 11)x

= (27 - 11)x

= 16x

Option A. Commutative property will be the answer.

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svp [43]

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3 years ago

A yardstick casts a shadow of 24 in. at the same time a telephone pole casts a shadow of 20 ft 8 in. What is the height of the t

BabaBlast [244]

1 yd = 36 in; 20 ft 8 in = 248 in;
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3 years ago

Of the students who eat in a certain cafeteria, each student either likes or dislikes lima beans and each student either likes o

spayn [35]

Answer: There are 32 students who like brussels sprouts but dislike beans.

Step-by-step explanation:

Since we have given that

Number of students eat in the cafeteria = 120

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Fraction who dislike lime beans and brussles sprouts both = $\dfrac{2}{3}\times \dfrac{3}{5}$

Fraction who dislikes lime beans but not brussles is given by

$\dfrac{2}{3}(1-\dfrac{3}{5})\\\\=\dfrac{2}{3}\times \dfrac{2}{5}\\\\=\dfrac{4}{15}$

So, Number of students who like brussels sprouts but dislike lima beans is given by

$\dfrac{4}{15}\times 120\\\\=32$

Hence, there are 32 students who like brussels sprouts but dislike beans.

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