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2 years ago

9

Lucy is saving money to buy a game. The game costs $21, and so far she has saved one-third of this cost. How much money has Lucy

saved?

2 answers:

Masteriza [31]2 years ago

6 0

Step-by-step explanation:

one third of $21 is $7 this is your answer

Svetach [21]2 years ago

5 0

Answer:

$7

Step-by-step explanation:

just did 21 divided by three since it says she has saved one third of the $21.

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Simple math but I can't seem to understand it: x+y=2 becomes y=2-x, in order to find slope and y intercept y=mx+b The result bec

IgorLugansk [536]

Answer:

See below.

Step-by-step explanation:

So we started off with the equation:

$x+y=2$

And we subtracted x from both sides to acquire:

$y=2-x$

Now, this is essentially slope-intercept form. Recall that the slope-intercept form is:

$y=mx+b$

Where m is the slope and b is the y-intercept.

If we rearrange our equation:

$y=2-x\\y=-x+2$

And put some parentheses:

$y=(-1)x+(2)$

We can see that this is indeed slope-intercept form.

And we can see that m is -1 and b is 2.

In other words, the slope is -1 and the y-intercept is 2.

3 0

3 years ago

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Prove the following statement.

gayaneshka [121]

Answer:

You can prove this statement as follows:

Step-by-step explanation:

An odd integer is a number of the form $2k+1$ where $k\in \mathbb{Z}$ . Consider the following cases.

Case 1. If $k$ is even we have: $(2k+1)^{2}=(2(2s)+1)^{2}=(4s+1)^{2}=16s^2+8s+1=8(2s^2+s)+1$ .

If we denote by $m=2s^2+2$ we have that $(2k+1)^{2}=8m+1$ .

Case 2. if $k$ is odd we have: $(2k+1)^{2}=(2(2s+1)+1)^{2}=(4s+3)^{2}=16s^2+24s+9=16s^{2}+24s+8+1=8(2s^{2}+3s+1)+1$ .

If we denote by $m=2s^{2}+24s+1$ we have that $(2k+1)^{2}=8m+1$

This result says that the remainder when we divide the square of any odd integer by 8 is 1.

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2 years ago

Aiden picked 3/8 of the carrots in his garden. There were 32 carrots in his garden.

Ann [662]

The answer is 12 carrots:)

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3 years ago

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Please help me out……..

Stells [14]

Answer:

y = 20

Step-by-step explanation:

y = kx

24 = 6k

24/6 = 6k/6

k = 4

y = kx

y = 4(5)

y = 20

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2 years ago

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I don't get how to do this, can someone help?

Marianna [84]

Google helps to so try that

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3 years ago