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sweet [91]
3 years ago
8

Help me please I’ll give brainlest

Mathematics
2 answers:
Firdavs [7]3 years ago
7 0

Answer:

B

Step-by-step explanation:

-4/2 = -2

-2 + 5 = 3

Murrr4er [49]3 years ago
6 0
Hi! I am sure of it being the second option! Have a good day hope you do good on this assignment!
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The total ages of Sarah, Jake and Matthew add up to 36. Jake is two years younger than Sarah and Matthew is 16 years younger tha
Hatshy [7]

Answer:

Step-by-step explanation:

S+J+M=36

J=S-2 or J=x-2

M=S-16 or M=x-16

6 0
3 years ago
Read 2 more answers
Which ten thousand does 117,290 round to
Leni [432]

Answer:

120,000

Step-by-step explanation:

because seven in greater than 5 so it would round up

3 0
2 years ago
How much of 30% HCI and 45% HCI would be needed to mix and produce 50 liters of 35% HCI
VladimirAG [237]

Answer:

  • 33 1/3 liters of 30%
  • 16 2/3 liters of 45%

Step-by-step explanation:

Let x represent the liters of 45% solution needed. Then the amount of HCl in the mix is ...

  0.45x +0.30(50 -x) = 0.35(50)

  0.15x = 0.05(50) . . . . . simplify, subtract 0.30(50)

  x = (0.05/0.15)(50) = 50/3 = 16 2/3 . . . liters of 45% HCl

33  1/3 liters of 30% and 16 2/3 liters of 45% HCl are needed.

_____

<em>Comment on the solution</em>

You may notice that the general solution to a mixture problem of this sort is that the fraction of the mix that is the highest contributor is ...

  (mix % - low %) / (high % - low %) = (.35 -.30) / (.45 -.30) = .05/.15 = 1/3

5 0
3 years ago
The measures of the angles of a triangle are in the extended ratio 4 : 5 : 6. What is the measure of the smallest angle?
ozzi
4x +5x +6x = 180
15x = 180
x = 180/15
x = 12
So smallest angle = 4*12 = 48 degrees
7 0
3 years ago
I picked the blue one, was I correct?
pav-90 [236]

Answer:

Yea i think it is the first one

Step-by-step explanation:

7 0
3 years ago
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