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Ksivusya [100]
4 years ago
14

On a test with 25 problems, Grace got 88% correct. How Manny problems did Grace get correct?

Mathematics
2 answers:
Sloan [31]4 years ago
6 0
She got 22 problems correct
Trava [24]4 years ago
4 0
It would be 22 because 22/25=0.88 which is 88 as a percent. You could find this by guessing the number and checking or by multiplying the number of problems by the percentage (as a decimal). So in this case 25x0.88=22
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Help me solve the equations, please. Very urgent!!
user100 [1]
<h3>- - - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - </h3>

➷ 847) You need to cross multiply

Multiply both sides by (x - 7) and 3

This is what you should get:

3x- 42 = 2x - 14

Now we just need to get like terms on the same side.

Add 42 to both sides and subtract 2x from both also

Now you get this:

x = 28

848) It's the same principle in this one too.

Multiply both sides by (x - 13) and 11

You should get:

11x - 132 = 12x - 156

Subtract 11x from both sides and add 156 also

Now you get:

x = 24

849) Multiply both sides by x

You should get:

x - 12 = -4x

Add 4x to both sides and add 12 also:

5x = 12

Divide both sides by 5

x = 2.4

850) Multiply both sides by x

You should get:

x-12 = 4x

Subtract x from both sides:

3x = -12

Divide both sides by 3:

x=-4

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ Hannah ♡

8 0
3 years ago
Read 2 more answers
Mountains are often measured by the distance they rise above sea level. Mount Everest Washington rises more than 1 1/10 miles ab
erastova [34]

Answer:

Mount Everest rise  5\frac{1}{2}\ miles  above sea level.

Step-by-step explanation:

Given:

Mountains are often measured by the distance they rise above sea level.

Mount Washington rises more than 1\frac{1}{10}  miles above sea level.

Mount Everest rises about 5 times as high.

Now, to find the miles above sea level is Mount Everest.

So, the miles of Mount Washington rise above sea level = 1\frac{1}{10} =\frac{11}{10}\ miles.

And, Mount Everest is 5 times high of Mount Washington:

Now, to get the miles above sea level is Mount Everest rise we multiply 5 by the miles of Mount Washington rise above sea level:

5\times \frac{11}{10} \\\\=\frac{55}{10} \\\\On\ simplifying:\\\\=\frac{11}{2} \\\\=5\frac{1}{2}\ miles.

Therefore, Mount Everest rise 5\frac{1}{2}\ miles above sea level.

4 0
3 years ago
Indicate which of the following situations inferential statistics: a. An annual stockholders' report details the assets of the c
Aliun [14]

Answer:

The situations c, d and e are Inferential statistics.

Step-by-step explanation:

Inferential statistics is used to determine reasons for a situation or phenomenon. It helps to draw conclusions grounded on extrapolations, and is hence fundamentally dissimilar from descriptive statistics that only summarizes the data that has truly been measured.

Descriptive statistics are short-term descriptive coefficients that condenses a given data set, which can be a demonstration of the whole or a sample of a whole population.

All descriptive statistics are either central tendency measure or variability measure. Measures of central tendency define the epicenter position of a distribution for a data set.  

From the provided situations the Inferential statistics are:

c. The mean of a sample set of scores is calculated to characterize the sample.

d. The sample data from a poll are used to estimate the opinion of the population.

e. A correlational study is conducted on a sample to determine whether educational level and income in the population are related.

Thus, the situations c, d and e are Inferential statistics.

6 0
3 years ago
Convert 0.25 hectoliters to milliliters.
Elena-2011 [213]

Answer: 25000 mililiters

Step-by-step explanation: Can i have brainliest Please?

You multiply the volume value by 100000

4 0
3 years ago
Read 2 more answers
What is S7 for 6 – 24 + 96 – 384 + ... ?
Dmitry [639]
6 - 34 + 96 - 384 +... 
a 1 = 6 , a 2 = a 1 * ( - 4 ) ,  a 3 = a 2 * ( - 4 ), a 4 = a 3 * ( - 4)...
a 5 = - 384 * ( - 4 ) = 1,536
a 6 = 1536 * ( - 4 ) = - 6,144
a 7 = - 6,144 * ( - 4 ) = 24,576 
This is a sum of a geometric sequence:
S 7 = 6 - 24 + 96 - 384 + 1,536 - 6,144 + 24,576 = 19,662
Another way to solve this:
S 7 = a 1 * ( r^n - 1) / ( r - 1 ) = 6 * (( - 4) ^7 - 1 )/ (- 4 - 1)=
= 6 * (-16,385) / (-5 ) = 19,662
8 0
3 years ago
Read 2 more answers
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