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aivan3 [116]
3 years ago
11

Kate sold one half of her paintings and purchased 7 more. If Kate has 21 paintings now, how many paintings did she have to begin

with?
Mathematics
1 answer:
Anna11 [10]3 years ago
6 0
(work backwards)
21-7=14 (before purchasing)
14x2=28 (before selling)

Ans: 28
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A painter can paint 350 square feet in 1.25 hours. What is the painting rate in square feet per hour?
blsea [12.9K]
Well we know that he can paint 350 square feet in 1.25 hours. To find how much he can paint in 1 hour, we would divide 350 by 1.25. 350 divided by 1.25 = 280, therefore his painting rate is 280 square feet per hour.
7 0
3 years ago
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emmasim [6.3K]

Answer:

Descriptive statistics

Step-by-step explanation:

The chances of winning the Maryland lottery are one chance in twenty-two million. The probability would be considered an example of Descriptive statistics

Descriptive statistics is referred to as the process of using a descriptive statistic. A descriptive statistic contains the quantitative summary from a sample data or information.The chances of winning the Maryland lottery are one chance in twenty-two million is an example.

6 0
3 years ago
I need help with this practice problem It’s from my trig prep guide
Zinaida [17]

We know that π = 180°, therefore:

1.

2\pi=2(180)=360

Answer: correct

2.

\frac{5\pi}{6}=\frac{5(180)}{6}=\frac{900}{6}=150

Answer: no correct

3.

\frac{\pi}{6}=\frac{180}{6}=30

Answer: no correct

4.

\frac{5\pi}{4}=\frac{5(180)}{4}=\frac{900}{4}=225

Answer: correct

5.

\frac{4\pi}{3}=\frac{4(180)}{3}=\frac{720}{3}=240

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6 0
1 year ago
Pls help me on this it’s rlly hard I’m not sure if the faces is correct and pls tell me the vertices to
Nady [450]

Answer:

6 vertices and 5 faces

Step-by-step explanation:

The faces are correct as there are 3 rectangles and 2 triangles.
So a total of 5 faces

There are 6 corners/vertices so the answer is 6 vertices

6 0
3 years ago
Find the product for 2(2n + 3)
pogonyaev

Answer:

4n+6

Step-by-step explanation:

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