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Scilla [17]
3 years ago
7

Please help with this. With either question is okay :)

Mathematics
1 answer:
Lyrx [107]3 years ago
5 0

Answer:

slope: -3; y-intercept: (0,15)

Step-by-step explanation:

The slope is -3, simply move 3x to the right side for slope intercept form, the y-intercept is where x =0 so set x equalt to zero. 3(0)+y=15, y=15

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What does the line 5x+2y=8 look like?
cestrela7 [59]
The correct answer would be D. The plot of the line 5x+2y = 8 is slanted right downwards. To predict, we write the equation into slope-intercept form as follows:

y = mx + b        where m is the slope and b is the y-intercept form

5x + 2y = 8
y = -5x/2 + 4

As we can see, the slope is negative so the graph should slope to the right downwards.
5 0
3 years ago
Can someone please explain how to solve this?<br> 1/2x + 3/2 (x+1) - 1/4 = 5 <br> Thank you!!
Snezhnost [94]

Answer:

x = 1.875

Step-by-step explanation:

<u>Step 1:  Distribute</u>

1/2x + 3/2(x + 1) - 1/4 = 5

1/2x + 3/2x + 3/2 - 1/4 = 5

<u>Step 2:  Combine like terms</u>

4/2x + 6/4 - 1/4 = 5

2x + 5/4 = 5

<u>Step 3:  Subtract 5/4 from both sides</u>

2x + 5/4 - 5/4 = 5 - 5/4

2x = 3.75

<u>Step 4:  Divide both sides by 2</u>

2x / 2 = 3.75 / 2

x = 1.875

Answer:  x = 1.875

5 0
3 years ago
SOORY but I need help
olga55 [171]

Answer:

C.) Stop C and Stop D

Hope This Helps!      Have A Nice Day!!

8 0
3 years ago
Nitrogen and oxygen are the most abundant gases in Earth’s atmosphere. A nitrogen molecule is 0.00000000003 meters larger than a
Verdich [7]
= 3 × 10-11
(scientific notation)

= 3e-11
(scientific e notation)

= 30 × 10-^12
(engineering notation)
(trillionth; prefix pico- (p))

= 0.0000000000
<span>(real number)</span>
4 0
4 years ago
Read 2 more answers
The mass of a certain 10k gold necklace is 18 grams. How many grams of gold are in the necklace?
Natasha2012 [34]

Given

The mass of a certain 10k gold necklace is 18 grams.

Find out  how many grams of gold are in the necklace.

To proof

let us assume that the gold in the  necklace be x.

As given in the question

10k gold necklace i.e   gold necklace is made up  of the various elements with the gold.

10k gold necklace is 18 grams.

As pure gold is of the 24k.

than the equation becomes

x = \frac{10\times18}{24}

solving

x =7.5 gram

7.5 grams of gold are in the necklace .

Hence proved



5 0
3 years ago
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