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Goshia [24]
2 years ago
14

Riley counted the number of balls on one layer of a box, 34. The box has 8 layers. How many balls can the box hold?

Mathematics
1 answer:
DedPeter [7]2 years ago
7 0

Answer:

8 times 34= 272

Step-by-step explanation:

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A coat with an original price tag of $400 was marked down by 40%. You have a coupon good for an additional 25% off. What is the
VMariaS [17]

Answer:

65%=$260

Step-by-step explanation:

40%+25%=65%

65% of 400

65/100*400

=$260

7 0
2 years ago
Read 2 more answers
Blank percent of 50 shirts is 35 shirts
kirill [66]

x\% \times 50 = 35 \\  \dfrac{x}{100}  \times 50 = 35 \\ x = 35 \div 50 \times 100 \\ x = 70

Answer check :
50 \times  \dfrac{70}{100}  \\  = 35

Answer : 70%

Hope this helps. - M
4 0
3 years ago
A past study claims that adults in America spend an average of 17 hours a week on leisure activities. A researcher wanted to tes
8090 [49]

Answer:

The claim is false.

Step-by-step explanation:

Given the data :

13 24 21 37 15 25 18 22 40 32

The sample mean and standard deviation can ben calculated for the given sample.

Using calculator :

Sample mean, xbar = 24.7

Sample standard deviation, s = 9.04

Sample size, n = 10

The hypothesis :

H0 : μ = 17

H1 : μ ≠ 17

The test statistic :

(xbar - μ) ÷ (s/√(n))

(24.7 - 17) ÷ (9.04/√(10))

7.7 / 2.8586990

Test statistic = 2.694

We can obtain the Pvalue, at α = 0.05 ; df = n-1 = 9

Pvalue = 0.0246

Since Pvalue < α ; we reject the null ; Hence, there is significant evidence to conclude that an adult American does not spend average of 17 hours in leisure

5 0
3 years ago
What's the answer???????
Klio2033 [76]
Your answer is d hope this helps
8 0
3 years ago
Bamboo plants grow rapidly. A bamboo plant is 130 inches tall. Tomorrow it will be 143 inches tall, the next day it will be 156
tensa zangetsu [6.8K]
An arithmetic sequence has a common difference.
143 - 130 = 13
156 - 143 = 13
169 - 156 = 13
The common difference is 13.

a1 = 130
a2 = 130 + 13
a3 = 130 + 2 * 13
a4 = 130 + 3 * 13
...
an = 130 + (n - 1) * 13

an = 130 + 13(n - 1)

an = 130 + 13n - 13

an = 117 + 13n

an = 13n + 117
4 0
3 years ago
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