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Natali [406]
3 years ago
11

-10x+3y=5 systems of equations with substitution

Mathematics
1 answer:
Genrish500 [490]3 years ago
8 0

Answer:

x=3/10y+-1/2

Step-by-step explanation:

Add -3y to both sides

-10x+3y=5

       -3y  -3y

-10x=3y+5

Divide both sides by -10

-10x=3y+5

_________

-10     -10

x=3/10y+-1/2

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5 sweets cost 30p altogether, how much do 7 sweets cost?
Nezavi [6.7K]
The best way to find out what 7 sweets cost, firstly, you should find out what one sweet would cost. You have 5 sweets, with a total cost of 30p. You should divide 30 by 5, giving you 6p per sweet. To get the cost of 7 sweets, you have to multiply 6p by 7, giving you 42p. Therefore, the cost of 7 sweets is 42p. Hope this helps :)
4 0
3 years ago
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Safeway is selling a 15 oz. box of Cinnamon Toast Crunch for $3.75. Weis is selling a 20 oz. box of Cinnamon Toast Crunch for $4
d1i1m1o1n [39]

Answer:

You should purchase the cereal at Weis

Step-by-step explanation:

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7 0
2 years ago
Someone please help!!
Dafna1 [17]

Answer:

SAS means "Side, Angle, Side"

ASA means "Angle , Side, Angle"

AAS means "Angle, Angle, Side"

HL stangs for "Hypotenuse, Length"

Step-by-step explanation:

SAS is when we have two sides meeting and forming an angle between them.

ASA is when we know two angles and a side between the angles.

AAS is when we know two angles and a side which is not between the angles.

HL means that: two triangles are congruent if the hypotenuse of one triangle is equal to the hypotenuse of the other and if one leg of a triangle is equal to a leg of another triangle.

*Note: The pictures are attached here below.

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3 years ago
Holly works at a garage.
Musya8 [376]
The answer is £287.98 is the correct answer
5 0
3 years ago
ILL GIVE BRAINIEST
aleksley [76]

Answer: y=5x/2 - 2.5

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-2.5-2.5)/(0-2)

m=-5/(-2)

m=5/2

y=mx+b

y=5x/2 + b

-2.5=5(0)/2 + b

-2.5=0 + b

b=-2.5

y=5x/2 - 2.5

4 0
1 year ago
Read 2 more answers
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