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Len [333]
3 years ago
12

Eric plays piano and guitar. He practiced on both instruments for a total of 8 hours this week. He practiced the piano for 3/4 o

f that time. For how many hours did Eric practice the piano this week?
Mathematics
1 answer:
Ivan3 years ago
7 0
If you would like to know how many hours did Eric practice the piano this week, you can calculate this using the following steps:

the piano: 3/4 of 8 hours = 3/4 * 8 hours = 6 hours

The correct result would be 6 hours.
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For each container of tea, McKenzie uses 16 tea bags and 3 cups of sugar. If McKenzie uses 64 tea bags, how many cups of sugar w
cestrela7 [59]
So tis is a ratio  16 is to 3 or 16:3
if use 64 tea bags then how many cups of sugar so
turn 16:3 into fraction
16:3=16/3 or 3/16, it doesn't matter
then you want to find 64:x or 64/x or x/64

we know that 16/3=64/x because it tis an equivalent ratio
so 16/3=64/x
multiply both sdies by (3 times x)
16 times x times 3/3=64 times 3 times x/x
16 times x=64 times 3
16x=192
divide both sdies by 16
x=12
theanswer is 12 cups of sugar
5 0
3 years ago
Laila made 12 muffins. Shannon made 10 muffins how many more did Laila make?
sleet_krkn [62]

Answer:

2 more muffins

Step-by-step explanation:

<em>Since, </em>

<u><em>Given that:</em></u>

<em>Laila made 12 Muffins</em>

<em>Shannon made 10 Muffins</em>

<u><em>Question to Answer:</em></u><em>
How many more did Laila make?</em>

<u><em>Solve:</em></u>

<em>Since it asking how many more laila made that means we have to subtract to find how many more laila has.</em>

<em>As given, we know that Laila made 12 Muffins and Shannon made 10 Muffins then:</em>

<em>Laila Muffins - Shannon Muffins</em>

<em>Which also means:</em>

<em>12 - 10</em>

<em>Which,</em>

<em>12 - 10 = 2</em>

<em>Hence, Laila makes 2 more Muffins than Shannon</em>

<em />

<u><em>Kavinsky</em></u>

7 0
2 years ago
Read 2 more answers
If Sue worked 28 hours this week and made $172 in tips, how much did her weekly pay
sergejj [24]
Do 178 times 28 which equals 4,984 then you do 4,984 decided by 7 which equals 712 because there are 7 days a week. So the answer is 712.
6 0
2 years ago
Read 2 more answers
Nada drinks 54 glasses of water a week. How many glasses of water does she drink in 9 Weeks?
kodGreya [7K]

Answer: 486 glasses of water in 9 weeks

Step-by-step explanation:

54 X 9 = 486

Or you could add 54 to itself 9 times then you will get 486

4 0
2 years ago
A data set includes weights of garbage discarded in one week from 62 different households. The paired weights of paper and glass
lara [203]

Answer:

Because the absolute value of the test statistic is <u>less than</u> the positive critical value, there <u>is not</u> enough evidence to support the claim that there is a linear correlation between the weights of discarded paper and glass for a significance level of α = 0.05.

Step-by-step explanation:

The correlation​ matrix provided is:

Variables    Paper     Glass

  Paper           1         0.1853

 Glass        0.1853         1

Te hypothesis for the test is:

<em>H</em>₀: <em>ρ</em> = 0 vs. <em>H</em>₀: <em>ρ</em> ≠ 0

The test statistic is:

<em>r</em> = 0.1853 ≈ 0.185

As the alternate hypothesis does not specifies the direction of the test, the test is two tailed.

The critical value for the two-tailed test is:

r_{\alpha/2, (n-2)}=r_{0.05/2, (62-2)}=r_{0.05/2, 60}=0.250

The conclusion is:

Because the absolute value of the test statistic is <u>less than</u> the positive critical value, there <u>is not</u> enough evidence to support the claim that there is a linear correlation between the weights of discarded paper and glass for a significance level of α = 0.05.

6 0
3 years ago
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