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Georgia [21]
3 years ago
10

Explain how knowing 1+7 help you find th sun

Mathematics
1 answer:
AfilCa [17]3 years ago
4 0
Draw the line -10 to 20 divide it into units
go to the left is minus and right plus. 
plot the point 1 in the line. 
going to the 7 unit right because it is adding 7
now you got 8
that is the answer.
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Help me out with number 8!!! I’m confused and I need this by tomorrow HELP PLEASE
ivann1987 [24]
We can use elimination for these set of systems.
First, we need to set up our variables.
Belts=b
Hats=h
Now, the situation is 6 belts and 8 hats for $140. The situation after is 9 belts and 6 hats for $132.
Let’s set up our system of equations.
6b+8h=140
9b+6h=132
We need to eliminate a variable. Since b has coefficients of 6 and 9, we can easily eliminate b by multiplying the top equation by 3 and the bottom by -2.
18b+24h=420
-18b-12h=-264
Now let’s add.
12h=156
Let’s divide to get h by itself.
156/12=13=h
So a hat costs $13. We need to put in 13 for one of the equations so we can find the cost of a belt.
9b+6(13)=132
9b+78=132
We need b by itself.
9b=54
54/9=6
Belts are $6
We can also use the first equation to check our answers.
6(6)+8(13)
36+104
140.
So, the price of a belt is $6 while the price of a hat is $13.
































3 0
2 years ago
Bicycle license plates in Flatville each contain three letters. The first is chosen from the set ({C,H,L,P,R}) the second from (
amm1812
5\cdot3\cdot4=60 - the current possible number of plates

after adding 2 letters into the 1st set:
7\cdot3\cdot4=82
after adding 2 letters into the 2nd set:
5\cdot5\cdot4=100
after adding 2 letters into the 3rd set:
5\cdot3\cdot6=90
after adding 1 letter into the 1st set and 1 into the 2nd set:
6\cdot4\cdot4=96
after adding 1 letter into the 1st set and 1 into the 3rd set:
6\cdot3\cdot5=90
after adding 1 letter into the 2nd set and 1 into the 3rd set:
5\cdot4\cdot4=80

<span>The largest possible number of plates after adding two numbers is 100.
So, </span><span>the largest possible number of additional plates is 100-60=40</span>
7 0
3 years ago
What is the vertex of the quadratic function f(x)=(x-8)(x-2)?
7nadin3 [17]
Change the function into vertex form:
f(x)=x²-10x+16
make a square by (adding half of -10)², which is 25, then subtract it:
f(x)=x²-10x+25-25+16
f(x)=(x-5)²-9
so the vertex is at (5,-9)

another way to do it: 
f(x)=x²-10x+16
the vertex is when x=-\frac{b}{2a}, b=-10, a=1 in this case.
x=-(-10/2*1)=5
plug x=5 into the quadratic function, you get f(x)=-9
4 0
3 years ago
An artist agrees to paint a landscape painting at $0.30 per square inch. Formulas Show calculator Select the best answer If the
svlad2 [7]
First, you gotta multiply 13 by 17, which is 221, then multiply THAT by .3, which is 66.3. So the artist should charge $66.30
7 0
3 years ago
Decrease 200 by 17% please
Juliette [100K]
166 hope this helps u with ur homwork
5 0
3 years ago
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