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3 years ago

If point C is not located between points A and B then AC+CB__ AB

Mathematics

1 answer:

Gre4nikov [31]3 years ago

6 0

Answer:

$\neq$

Step-by-step explanation:

If Point C was located between A & B, then:

$AC+CB=AB$

However, we are told Point C is not; therefore:

$AC+AB\neq AB$

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How to write out a one-step equation for a word problem. Maggie spent half of the money in her savings account on a new computer

Fittoniya [83]

Answer:

(1/2)s = 345

s = 690 (Maggie's savings balance)

Step-by-step explanation:

For any problem, word problem or otherwise, you start be reading and understanding the problem. You should specifically look for

what you're being asked to find (what is the question to answer)
the information you're given that is relevant to the question asked.

Here, you're asked to find a savings account balance. You're told that $345 is half that amount.

After you decide what you're looking for and the given relevant information, you use the problem statement and your personal knowledge to write one or more equations relating what you know to what you want to find.

A first step for doing this is to define any necessary variables. In this problem, we can use "s" for the original savings balance (in dollars). (I like to choose letters that remind me what they stand for. "x" or "y" can sometimes get mixed up. For a one-variable problem, it doesn't really matter what you call it. It is helpful to be clear about the units of measure of any variables. Confusion there can also lead to errors.)

The problem statement tells us that half the savings account amount is $345, so our equation is ...

(1/2)s = 345

The "one step" required to solve this so to multiply both sides of the equation by 2.

s = 690

Maggie had $690 in her savings account before she bought the computer.

5 0

3 years ago

Can I get help on this

qwelly [4]

I dont really know the answer but u can use this app called photomath and it will help

8 0

3 years ago

What is x-2y=-1 and 2x+y=4 using elimination step by step

otez555 [7]

Answer:

x = 7/5 , y = 6/5

Step-by-step explanation using elimination:

Solve the following system:

{x - 2 y = -1 | (equation 1)

2 x + y = 4 | (equation 2)

Swap equation 1 with equation 2:

{2 x + y = 4 | (equation 1)

x - 2 y = -1 | (equation 2)

Subtract 1/2 × (equation 1) from equation 2:

{2 x + y = 4 | (equation 1)

0 x - (5 y)/2 = -3 | (equation 2)

Multiply equation 2 by -2:

{2 x + y = 4 | (equation 1)

0 x+5 y = 6 | (equation 2)

Divide equation 2 by 5:

{2 x + y = 4 | (equation 1)

0 x+y = 6/5 | (equation 2)

Subtract equation 2 from equation 1:

{2 x+0 y = 14/5 | (equation 1)

0 x+y = 6/5 | (equation 2)

Divide equation 1 by 2:

{x+0 y = 7/5 | (equation 1)

0 x+y = 6/5 | (equation 2)

Collect results:

Answer: {x = 7/5 , y = 6/5

5 0

3 years ago

Solve the proportion ? : 32 = 9 : 4 for the unknown. a72 b48 c36 d18

zzz [600]

Answer:

x : 32 = 9 : 4

4x = 288

x = 72

Step-by-step explanation:

4 0

3 years ago

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romanna [79]

In 24 hour time format, afternoon time 1300 is 1pm, 1400 is 2pm, and in general we have to subtract 1200 to make the pm times traditional.

2250 - 1200 = 1050, ten to eleven.

Choice b.

5 0

3 years ago

Read 2 more answers