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Zigmanuir [339]
3 years ago
13

Simplify 22 + 6(3) – 7 and 5x − 2y + 3z − 2x − y + 4z

Mathematics
1 answer:
sergey [27]3 years ago
6 0

22+6(3)-7=22+18-7=40-7=33


5x-2y+3z-2x-y+4z\qquad|\text{combine like terms}\\\\=(5x-2x)+(-2y-y)+(3z+4z)=3x-3y+7z

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Solve equation <br> 0.3 :4=9:y
elixir [45]

Answer:

You should use photomath, it would be more easier for u. Oh, and by the watñy Y=12

3 0
3 years ago
6(2x+4)=4(3x+6) solve and show work
Afina-wow [57]

Answer:

0=0

Step-by-step explanation:

6(2x+4)=4(3x+6)

Step 1: Simplify both sides of the equation.

6(2x+4)=4(3x+6)

(6)(2x)+(6)(4)=(4)(3x)+(4)(6)(Distribute)

12x+24=12x+24

Step 2: Subtract 12x from both sides.

12x+24−12x=12x+24−12x

24=24

Step 3: Subtract 24 from both sides.

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5 0
3 years ago
The route used by a certain motorist in commuting to workcontains two intersections with traffic signals. The probabilitythat he
zavuch27 [327]

Answer:

a) 0.2

b) 0.2

c) 0.5

Step-by-step explanation:

Let S be the event "the car stops at the signal.

In the attached figure you can see a tree describing all possible scenarios.

For the first question the red path describes stopping at the first light but not stopping at the second. We can determine the probability of this path happening by multiplying the probabilities on the branches of the tree, thus

P(a)=0.4\times0.5=0.2

For the second one the blue path describes the situation

P(b)=0.4\times 0.5=0.2

For the las situation the sum of the two green path will give us the answer

P(c)=0.6\times 0.5 + 0.4\times 0.5=0.3+0.2=0.5

7 0
4 years ago
Read 2 more answers
Plzzz help 100+ points
o-na [289]

Answer:

1) 95% is the minimum

Step-by-step explanation:

If 5 tests were taken, and 100 pts each, and he received 77/100 on all 5 tests, then his grade would be 385/500 being 77%. Add another 100 pts to the denominator (for the last test) and 95 to the numerator, equaling 480/600, or 80%.

4 0
3 years ago
Read 2 more answers
10
hjlf

Answer:

1) {0,1,4}

Step-by-step explanation:

(x,y)

domain is x

range is y

so in this case the domain is 0,1,4    

6 0
3 years ago
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