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Nookie1986 [14]
3 years ago
10

X + y = 3 2x + 2y = -4​

Mathematics
2 answers:
Rasek [7]3 years ago
4 0

Answer:

Step-by-step explanation:

no solutions

2x+2y=-4 divide 2

x+y=-2

x+y=3

zaharov [31]3 years ago
3 0

Answer:

(x,y)= (2/15, -(62/15)

Step-by-step explanation:

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Solve for x. x-17=-57<br> i need help
seraphim [82]
X - 17 = -57
-17. -17
x = -74

hope this helps xo
7 0
3 years ago
Aspirin is sold in boxes of 24 for $3.69, 50 for $5.49, 100 for $8.29, and 150 for $11.99. Which box has the best unit rate.
NNADVOKAT [17]

Answer:

150 for 11.99

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4 0
3 years ago
C=5/9(F-32) solve for F
mina [271]
<span>F= 9/5 C + 32
      or
</span><span>F= 9/5(C+32)
</span>                          Hoped this helped:)
7 0
3 years ago
Sara ran 10km in 2.5 hours. Katerina ran 7.5 km in 2 hours. Candice ran 9.5 km in 2.25 hours. Who had the fastest average speed?
Arisa [49]

10 km ÷ 2.5 hours = 4 km/h — This is Sara's record

7.5 km ÷ 2 hours = 3.75 km/h — This is Katerina's record

9.5 km ÷ 2.25 hours = 4.2 km/h — This is Candice's record

Therefore, the answer is Candice had the fastest average speed.

6 0
3 years ago
Solve for x ....... thanks !
Len [333]
If we can match teh bases we can solve
because if x=x and xᵃ=xᵇ, we can conclude that a=b

16=2⁴
32=2⁵
rememeber that (x^m)^n=x^{mn}

16^{3x+2}=32^{-2x-7}
(2^4)^{3x+2}=(2^5)^{-2x-7}
2^{4(3x+2)}=2^{5(-2x-7)}
2=2 so we conclude that 4(3x+2)=5(-2x-7)

4(3x+2)=5(-2x-7)
expand/distribute
12x+8=-10x-35
add 10x both sides
22x+8=-35
minus 8 both sides
22x=-43
divide both sides by 22
x=-43/22
8 0
3 years ago
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