30.50-14= 16.50
16.50 divided by 2.75= 6
The answer is 6
Refrection of (-20, 4) across x-axis gives (-20, 4) = (-20, -4)
Refrection of (-20, 4) across y-axis gives (20, 4)
Refrection of (-20, 4) across y = -x gives (20, -4)
Refrection of (-20, 4) across y = 7 gives (20, 10)
Answer:
1
Step-by-step explanation:
<u>Equivalent and Fully Simplified:</u>
8+7x+4y
<u>Equivalent and not fully simplified:</u>
8+12x-5x+4y
15+7x+4y-7
<u>Note Equivalent:</u>
15-7x-4y
8+17x+4y
8+11y
Step-by-step explanation:
Given expression is:
We will simplify the expression one by one
Now we can categorize the expressions in boxes given below
<u>Equivalent and Fully Simplified:</u>
8+7x+4y
<u>Equivalent and not fully simplified:</u>
8+12x-5x+4y
15+7x+4y-7
<u>Note Equivalent:</u>
15-7x-4y
8+17x+4y
8+11y
Keywords: Expressions, simplification
Learn more about expressions at:
#LearnwithBrainly
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The value of the coin times the number of coins all added up equals the total value of the piggy bank
so
0.05n + 0.10d = 5.60
then they have given us "number of nickels is 8 less than 3 times the dimes"
this translates to
n = 3d - 8
we plug this into our first equation and we get
0.05(3d - 8) + 0.10d = 5.60
now we solve for d
first we can distribute the 0.05
0.15d - 0.40 + 0.10d = 5.60
then we can add the 0.15d and 0.10d together
and get
0.25d - 0.40 = 5.60
then we can add 0.40 to both sides
0.25d = 6.00
then divide both sides by 0.25
d = 6.00 / 0.25 = 24
so we have 24 dimes
then to find nickels, we plug in 24 for d into
n = 3d - 8
and get
n = 3(24) - 8
n = 72 - 8
n = 64
therefore we have
64 nickels
and
24 dimes
