On solving the provided question, by substitution method we got that y=1.43 and x=o.65
<h3>What is substitution method?</h3>
To solve systems of linear equations, use the algebraic technique of substitution. The name of the technique implies that it involves substituting the values of variables from one equation into another.
x=cakes , y=donuts
3x+6y=$10.14 ------ eqt.1
4x+4y=$8.32 ------ eqt.2
solve eqt.1 for "y"
y=1.43
x=o.65
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The correct question is
Ellie and Mary went to the Stef bakery. Ellie bought 3 cakes and 6 filled donuts for $10.14. Mary bought 4 of each for $8.32. What is the price of each type The price of a is The price
Answer:
Step-by-step explanation:
Factor the expression starting with a GCF. x^3 is the GCF of both terms.
To factor further, factor as a difference of squares.
<h2>Answer :-</h2>
As we know that,
Pythagoras triplet
1) a² + b² = c²
Let
<h3>Hence, A can't be Pythagoras triplet</h3>
2) a² + b² = c²
<h3>Therefore, B can be Pythagoras triplet</h3>
3)a² + b² = c²
<h3>Hence, C can't be Pythagoras triplet</h3>
4) a² + b² = c²
<h3>Hence, D can't be Pythagoras triplet</h3>
<h2 /><h2>Therefore :-</h2>
Only B can be Pythagoras triplet.
Answer:
0.225miles per minute for boat and 0.025 miles per minute for current
Step-by-step explanation:
you just gotta love river current problems
lets use the formula d=rt
we're gonna modify it a bit
when your riding in a canoe with the current your going to go faster than against the current so
with the current: d=(r+c)t
against current:d=(r-c)t
where
d=distance
c=rate of water
r=rate of boat
and
t= time
so
4=16(r+c)
4=16r+16c
simplify to
1=4r+4c
2nd equation:
4=20(r-c)
4=20r-20c
solve by elimination:
(1=4r+4c)5
5=20r+20c
-
4=20r-20c
-------------------
1=40c
c=0.025-speed of water
4=20r-20(0.025)
4=20r-0.5
4.5=20r
4.5/20=r
0.225=rate of boat
hope this helps
She can buy 6 magazines and she needs 4 more dollars to buy another