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grandymaker [24]
3 years ago
8

Really need help with 24 u have to use distributive property

Mathematics
1 answer:
Darya [45]3 years ago
8 0

Answer:

x= 3.5

Step-by-step explanation:

5*2x= 10x

5*7= 35

10x/10= x

35/10= 3.5

3.5= x

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Enter in the missing numbers to create equivalent ratios. HELPPPPPPPPPPPPPPPPPPPP
choli [55]
I think it’s 10,21 and 40, in that order. Sorry if I’m wrong:(
8 0
3 years ago
How many ml of a 20% acid mixture and a 80% acid mixture should be mixed to get 120ml of a 35% acid mixture?
shutvik [7]

Answer:

Volume of Mixture A =90 ml

Volume of Mixture B =30 ml

Step-by-step explanation:

Let say, Mixture A + Mixture B = Mixture C

Volume of Mixture A is x

Volume of Mixture B is y

So, Volume of Mixture C is x+y = 120 ml

Now, Acid contain in Mixture A is 20% =0.2x

Acid contain in Mixture B is 80% =0.8y

Also, Acid contain in Mixture C is 35% =(0.35)(x+y) = 0.35×120=42

Now, we know that,

Acid contain of Mixture A + Acid contain of Mixture B=Acid contain of Mixture C

∴ 0.2x+0.8y=42

∴ 2x+8y=420

We get two linear equations

2x+8y=420 and x+y = 120

Solving above equation...

∴ x=120-y

Replacing x value in 2x+8y=420

∴ 2(120-y)+8y=420

∴ 240-2y+8y=420

∴ 6y=180

∴ y=30

Replacing y value in any equation

∴ x=120-y=120-30=90

∴ x=90

Thus,

Volume of Mixture A is x=90 ml

Volume of Mixture B is y=30 ml

3 0
3 years ago
D. Write a system of two linear equations that has more than one solution.
ddd [48]
D. y=5x+6 and 2y-12-10x=0 has infinitely many solutions and both lines are linear

E. y=4x+1, y=9x+4 has the solutions x = -3/5, y = -7/5


3 0
3 years ago
I WILL MARK BRAINLIEST IF THIS IS ANSWERED IN LESS THAN 30 MIN.
Luden [163]

Answer: 9.5

Step-by-step explanation:

3 0
2 years ago
02:42:33
jeyben [28]

Answer:    -10

Step-by-step explanation:

It is -10 because you have to switch the order of operations to get negative.

Hope it helps!

6 0
3 years ago
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