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dybincka [34]
3 years ago
12

I have 2 questions. Please help! I will mark the Brainliest for the best answer(s)

Mathematics
2 answers:
Fiesta28 [93]3 years ago
8 0
1. Jane has $40 to begin with
Fay has $32 to begin with
Henry has $18 to begin with

They all end with the same amount which must be 30.

40-12=28.- Jane 18+12=30- Henry
32-2=30-Fay. 28+2=30

2. 240+241+242= 723
polet [3.4K]3 years ago
5 0

Answer:

1.   J=20, f= 28, H=42

2. 240 + 241 + 242 = 723

Step-by-step explanation:

J= 30- 12= 18+2= 20

F= 30-2=28

H=30+12=42

2.

240 + 241 + 242 = 723

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HELP!!!! What is-15=(3x-10)-5x
omeli [17]

Answer:

<h2>x = 2.5</h2>

Step-by-step explanation:

-15=(3x-10)-5x\\\\-15=3x-10-5x\qquad\text{combine like terms}\\\\-15=(3x-5x)-10\\\\-15=-2x-10\qquad\text{add 10 to both sides}\\\\-15+10=-2x-10+10\\\\-5=-2x\qquad\text{divide both sides by (-2)}\\\\\dfrac{-5}{-5}=\dfrac{-2x}{-2}\\\\2.5=x\to x=2.5

3 0
3 years ago
Read 2 more answers
A circle has a diameter of 4 meters. What is its perimeter (to the nearest hundredth)? What is its area (to the nearest hundredt
Ilya [14]

Answer:

<h2>C ≈ 12.56 m, A ≈ 12.56 m²</h2>

Step-by-step explanation:

The formula of a perimeter (circumference) of a circle:

C=d\pi

<em>d</em> - diameter

The formula of an area of a circle:

A=\pi r^2

<em>r</em> - radius

We have <em>d = 2r = 4m → r = 2m.</em>

<em>Substitute:</em>

<em>Use π ≈ 3.14</em>

C=4\pi\ m\approx(4)(3.14)=12.56\ m

A=\pi(2^2)=4\pi\ m^2\approx(4)(3.14)=12.56\ m^2

4 0
4 years ago
I need help with these
murzikaleks [220]
1. 7
3. -5
5. -12
7. -4
9. -20
11. -9

2. -2
4. - 2
6. 19
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4 0
3 years ago
3x + 5 = x - 3<br> whats the answer?
tester [92]

Hello!

Here are the steps to your problem:

3x + 5 = x - 3

3x -x = -3 -5

2x = -8

x = -4

I hope this helps you! Have a lovely day!

-Mal

5 0
4 years ago
Read 2 more answers
34-5(p-1)=4<br> please add working
In-s [12.5K]

Answer:

Step-by-step explanation:

subtract 34 from both sides

34 - 5(p - 1) - 34 = 4 - 34

simplify

-5 (p - 1)  = -30

divide both sides by -5

-5 (p - 1) / -5        -30/-5

p = 7

4 0
3 years ago
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