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ollegr [7]
3 years ago
8

What's 3x + 10 - x + 12

Mathematics
2 answers:
Zinaida [17]3 years ago
5 0
2x+22 is the answer.
tatyana61 [14]3 years ago
3 0
Correct! Your answer is B. 2x+22, here's why it is though: 
<span>=<span><span><span><span><span>3x</span>+10</span>+</span>−x</span>+12
</span></span><span>=<span><span><span><span>3x</span>+10</span>+<span>−x</span></span>+12 — C</span></span>ombine like terms:
<span>=<span><span>(<span><span>3x</span>+<span>−x</span></span>)</span>+<span>(<span>10+12</span>)
Answer:
</span></span></span><span>=<span>2x<span>+22

</span>Good luck with your studies, I hope this helps~!</span></span>
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And Matthew ran a lemonade stand on Saturday they agreed that Matthew would get 60% of the profit because a lemonade stand was h
VladimirAG [237]

Matthew makes $15 money .

<u>Step-by-step explanation</u>:

  • Total profit = $25
  • Matthew gets 60% of the profit.

Therefore, the Matthew would get 60% of 25.

⇒ (60/100)\times25

⇒ 0.6\times25

⇒ $15

6 0
2 years ago
Please help. This is summer homework that's due in 2 days!
iVinArrow [24]
Split the surface area into geometric shapes as shown in the figure below.

Top part
The area of one triangle is
A₁ = (1/2)*(10 cm)*(4 cm) = 20 cm²
There are 3 of these triangles.

Vertical sides..
The area of one vertical side is
A₂ = (10 cm)*(6 cm) = 60 cm²
There 3 of them.

Bottom part
The triangle is equilateral with each side  = 10 cm, and each angle = 60 deg.
The area is (from the Law of Sines)  equal to
A₃ = (1/2)(10 cm)*(10 cm)*sin(60) = 43.3 cm²

The total surface area is
3A₁ + 3A₂ + A₃
= 3*20 + 3*60 + 4.3
= 283.3 cm²

Answer: The surface area is  283.3 cm²

4 0
3 years ago
Pls help I’ll brainlest due in 10 Minutes
kirill115 [55]
3n + 11 = 29
3n = 18
n = 6
7 0
2 years ago
Read 2 more answers
Chuck and Dana agree to meet in Chicago for the weekend. Chuck travels 104 miles in the same time that Dana travels 96 miles. If
Yanka [14]

Answer: Chuck's travel at a rate of 52mph

Step-by-step explanation:

For Chuck's trip:

D=RT

104= (R+4)T

T= 104 / (R+4)

For Dana's trip:

96 = RT

T= 96/R

Set both equation for Chuck's and Dana together

104/(R+4) =96/R

Then we cross multiply

96(R+4) = 104R

96R + 384 = 104R

104R - 96R = 384

8R = 384

To get R, divide both side by 8

8R/8 = 384/8

R= 48mph

This means Dana's speed is 48mph

Chuck's speed will be: 48mph+4mph = 52mph

3 0
3 years ago
Ryan is trying a low-carbohydrate diet. He would like to keep the amount of carbs consumed in grams between the levels shown in
nydimaria [60]

Answer:

50

Ryan would like to eat <em>more than</em> 50 carbs per day, but <em>no more than</em> 150 carbs per day.

So, Ryan's total carb intake must be <em>between </em>50 and 150 carbs.

Step-by-step explanation:

So he wants to keep his consumption of carbs between the inequalities:

110

So, let's solve both inequalities.

1)

110

Subtract 10 from both sides:

100

Divide both sides by 2:

50

2)

2x+10

Subtract 10 from both sides:

2x

Divide both sides by 2:

x

So, our inequality is now:

110

Since we solved the equations:

50

Written as a compound inequality, this is:

50

In other words, Ryan would like to eat <em>more than</em> 50 carbs per day, but <em>no more than</em> 150 carbs per day.

So, Ryan's total carb intake must be <em>between </em>50 and 150 carbs.

4 0
2 years ago
Read 2 more answers
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