3 years ago

Which property would allow you to use mental computation to simplify the problem 23 + (7 + 9)?

Mathematics

1 answer:

ser-zykov [4K]3 years ago

5 0

Associative property of addition

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Solve the following equation for x, and express it’s value in terms of c. 3(cx-7)=9

sveta [45]

Answer:

$x=\frac{10}{c}$

Step-by-step explanation:

Given equation is $3(cx-7)=9$ . We require x in terms of c.

$3(cx-7)=9$

Dividing both sides with 3 we get

$(cx-7)=3$

Add 7 on both sides we get

$(cx)=10$

Dividing both sides with c we get

$x=\frac{10}{c}$

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4 years ago

Evaluate the expression.<br> 4(11 + 7) – 9.8

Aleks04 [339]

Answer:

62.2

Step-by-step explanation:

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mash [69]

Answer:

Jenny Question Answer: 4 over 50

Jake Question Answer: 20 beads are red

Step-by-step explanation:

Jenny: She pulled a purple tile 4 times when there is 50 tiles in the bag

Jake: 6 of the 15 beads are red. 6/15 = 2/5 = 40% are red. Take the percent times the total number of beads. 40 * 50 = 20.

20 of the beads are red

I hope I helped, please correct me if I'm wrong!

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4 years ago

A teacher has 27 students in her class. She asks the students to form as many groups of 4 as possible. How many students will no

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3 people will be in each group because 3*9=27

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Simplifey the expression 24x + 32 + 4x +3 what is the coefficient of x

creativ13 [48]

28 is the coefficient and the simplified expression is 28x + 35

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