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bija089 [108]
3 years ago
10

ℍ , ? ℙ ℝ *ℕ ℝ ℕℝ ℙ**

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
5 0

x , y

1 , 7.5

2 , 15

3 , 22.5

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The bill for your dinner is $91. You leave a $15.47 tip. What is the percent of tip?
mixas84 [53]

Answer: 17%

Step-by-step explanation:

15.47 over 91 = x over 100

cross multiply and reduce to find 17.

4 0
3 years ago
17 + (9 + 10) = (17 + 9) + 10<br> A. True<br> O B. False
JulijaS [17]

Answer: Did you mean to rewrite that

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
What is the radius of a sphere with a volume of 1/6 pie
Yakvenalex [24]

Answer:

\large\boxed{the\ radius\ R=\dfrac{1}{2}}

Step-by-step explanation:

The formula of a volume of a sphere:

V=\dfrac{4}{3}\pi R^3

We have

V=\dfrac{1}{6}\pi

Substitute:

\dfrac{4}{3}\pi R^3=\dfrac{1}{6}\pi        <em>divide both sides by π</em>

\dfrac{4}{3}R^3=\dfrac{1}{6}          <em>multiply both sides by 3</em>

3\!\!\!\!\diagup^1\cdot\dfrac{4}{3\!\!\!\!\diagup_1}R^3=3\!\!\!\!\diagup^1\cdot\dfrac{1}{6\!\!\!\!\diagup_2}

4R^3=\dfrac{1}{2}          <em>divide both sides by 4</em>

R^3=\dfrac{1}{2}:4\\\\R^3=\dfrac{1}{2}\cdot\dfrac{1}{4}\\\\R^3=\dfrac{1}{8}\to R=\sqrt[3]{\dfrac{1}{8}}\\\\R=\dfrac{\sqrt1}{\sqrt8}\\\\R=\dfrac{1}{2}

3 0
3 years ago
-3x + 5y = -6<br> 6x - 10y = 12
enyata [817]

Answer:

1. Let's solve for x.

−3x+5y=−6

Step 1: Add -5y to both sides.

−3x + 5y + −5y = −6 + −5y

−3x = −5y − 6

Step 2: Divide both sides by -3.

−3x

−3

=

−5y−6

−3

x=

5

3

y+2

2. Let's solve for x.

6x−10y=12

Step 1: Add 10y to both sides.

6x−10y+10y=12+10y

6x=10y+12

Step 2: Divide both sides by 6.

6x

6

=

10y+12

6

x=

5

3

y+2

7 0
3 years ago
Look at the picture below for the question i need help with. I pretty sure you need to find the y-intercept...
daser333 [38]

Answer:

20.00

Explanation:

You can see that with every two coffees the amount is decreasing by 3.50 each time

The slope is -1.75 which is for every one coffee so this multiplied by 2 = 3.50

8 0
3 years ago
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