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laila [671]
3 years ago
6

Nancy has (4K + 6) meters of ribbon. Kevin has (6k - 2) meters of ribbon. If k = 5, who has the shorter ribbon?

Mathematics
1 answer:
jek_recluse [69]3 years ago
3 0

Answer:

4*5+6 = 26

6*5-2= 28

Nancy has the shortest ribbon

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How to do this ?<br> Don’t understand it
riadik2000 [5.3K]
X=y+3
<span>-5x-4y=<span>30
-------------------
Substitute y + 3 for x in </span></span>-5x-4y=30
<span><span>-5<span>(y+3)-</span></span>4y</span>=<span>30
</span>-9y-15=<span>30
</span>----------------------------
Add 15 to each side
<span><span>-9y-15</span>+15</span>=<span>30+<span>15
-9y = 45
</span></span>-----------------------------------
Divide each side by -9
-9y ÷ -9 = 45 ÷ -9
y = -5
Now we solve for x
====================================================================
Substitute -5 for y in x = y + 3
x=-<span><span>5</span>+<span>3
</span></span>x = -2
----------------------
(-2,-5) is your answer


7 0
3 years ago
PLEASE HELP WILL GIVE BRAINLIEST TO CORRECT ANSWER
Paraphin [41]

Answer:

B. 5x - 4y = 12

Step-by-step explanation:

Let's convert this to slope-intercept form to interpret the equation easier.

5x - 4y = 12

Subtract 5x from both sides.

-4y = -5x + 12

Divide both sides by -4.

y = 5/4x - 3

Based on this, we know the slope is 5/4 and the y-intercept is (0, -3). When you count the rise over run in the picture and look at the y-intercept, they match.

7 0
3 years ago
What is the decimal of 1/2
vodomira [7]

Answer:

.5

Step-by-step explanation:

1 half of any thing is 50 percent and 50 percent is written as a decimal when you move the decimal point twice to the left giving you .5

6 0
3 years ago
Read 2 more answers
a relay team of 4 people runs 3 mile. it each person runs the same distance, how many miles does each person run?
Bingel [31]
Each person runs 3/4 miles.
6 0
3 years ago
Garcia wrote the equation y=-0.2x^2+5x-8 to model the path of a soccer ball. What is true about the expression -0.2x^2+5x-8?
shutvik [7]

Answer:

Step-by-step explanation:

A.  The leading coefficient is the number on the highest degree term.  We have a 2nd degree polynomial because of the power of 2 on the x.  That's what leads this polynomial off.  So the leading coefficient is the number stuck to that x-squared term.  Our leading coefficient is a -.2, not 5.  5 is the linear term.

B.  The constant is the number that doesn't have a variable stuck to it.  Our constant, then, is -8, not 2.

C.  The expression does in fact have 3 terms.  Each term is separated from the other terms by either a plus sign or a minus sign.  A polynomial with 3 terms is called a trinomial.

D.  The expression actually factors to x = 1.718... and x = 23.281...  Neither one of those is the factor given in the statement.  

The only one that is true is C.

7 0
3 years ago
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