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Katyanochek1 [597]
3 years ago
14

10) Solve using any method 10x+2y=42 5x+y=20

Mathematics
2 answers:
Aleonysh [2.5K]3 years ago
5 0
The answer is no solution! Using substitution, you come to 20 = -21, which is a false statement.

KIM [24]3 years ago
3 0

Answer:

no solutions

Step-by-step explanation:

10x+2y=42

5x+y=20

Multiply the second equation by -2 to use elimination

-2(5x+y)=20*-2

-10x -2y = -40

Add this to the first equation

10x+2y=42

-10x -2y = -40

--------------------------

0 = 2

This is never true.  This means there are no solutions

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At another school they sell a different brand of gift wrap which costs $2 per package and cards for $5 per package. Your friends
zhenek [66]
Hi there,

5x?=110 ?=22

how? 110/5=22

now 2x?=110

110/2=55    ?=55'

so we know now that people bought 22 packages with card and 55 w/th out cards!

so no we need to divide 695/both

695/5=139 packages with cards 

695/2=347 packages without cards 

SO

139 packages with card 

347 packages without card
8 0
3 years ago
Micheal buys a basket of mangoes on sale for 4 dollars before tax. The sales tax is 12%. What is the total price Micheal pays fo
nikitadnepr [17]

Answer:

$4.48 <em>is the total price.</em>

Step-by-step explanation:

<em>Mulitply the total by the percentage.</em>

<em />

4 * .12 = .48

<em>Add those together. </em>

<em />

4 + .48 = 4.48

<em>Total price of mangoes: $</em>4.48<em> </em>

6 0
3 years ago
julio filled his car up with gas he paid $12.95 for 5 gallons of gas. what is the cost per gallon of gas
Naya [18.7K]

Answer:

the cost for each gallon is 2.59

Step-by-step explanation:

3 0
3 years ago
Whats one question that i can ask about this lesson
Eva8 [605]

Answer:

what is the lesson? need more details

8 0
3 years ago
If F, G, and H are the midpoints of the sides of triangle JKL , FG = 37, KL = 48, and GH = 30 find each measure
seraphim [82]

Answer:

The measure of JK is 60

Step-by-step explanation:

It is given that the points F, G, and H are the midpoints of the sides of triangle JKL , FG = 37, KL = 48, and GH = 30.

The point F is midpoint of JK, point G is midpoint of KL and the point H is midpoint of LJ as shown in figure .

According to the midpoint theorem, the line connecting the midpoints of two sides is parallel to the third and its length is half of the third si

8 0
3 years ago
Read 2 more answers
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