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Leviafan [203]
3 years ago
8

Tim answered all the questions on his math test but got 101010 answers wrong. He received 444 points for every correct answer, a

nd there was no penalty for wrong answers. His score was 767676 points. Write an equation to determine the total number of questions (q)(q)(, q, )on Tim's math test.
Mathematics
1 answer:
GuDViN [60]3 years ago
5 0

Answer:

4(q - 10) = 76.

q = 28.

Step-by-step explanation:

Let the number of questions be q.

The number Tim got right is therefore q - 10 questions.

4(q - 10) = 76

4q - 40 = 76

4q = 116

q = 116/4

q = 28.

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In the barn, there are horses and chickens. There are 11 heads and 32 legs altogether. How many chickens are there?
Masteriza [31]

Answer:

6 Chickens

Step-by-step explanation:

Let  H represent the number of horses and  C represent the number of chickens. Since there are 32 legs altogether this means that on equation to use would be given by:

2C  +  4 H  =  32     (Eq. 1)

Another equation can be made from the fact that there are 11 heads or 11 animals altogether which can be written as:

C  +  H  =  11    (Eq. 2)

From Eq. 2, solve for the number of chickens:

C  +  H  =  11

C   =  11  - H    (Eq. 3)

Substituting Eq. 3 in Eq. 1, the number of horses can be determined:

2 C  +  4 H  =  32

2 ( 11  −  H )  +  4 H  =  32

22   −  2 H  +  4 H  =  32

2H  =  32  − 22

2 H  = 10

H = 5               Eq.4

Putting Eq.4 in Eq.1

2C + 4*5 =  32

2C = 32 - 20

2C = 12

C = 12/2

C = 6

8 0
3 years ago
M divided by 19 = -2<br><br> (Find m)
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M=38 I hope it helps
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3 years ago
5. Lisa sold costume jewelry at a bazaar. The
julsineya [31]

Answer:

$4

Step-by-step explanation:

2 Bracelets + 3 rings = $26

2 rings = $12

3 rings = x

To get the cost of 1 ring you divide 12 by 2 and the answer you get is 6.

The total cost of the 3 rings is $18( $6*3)

Then you subtract the cost of both 2 bracelets and 3 rings($26) from the cost of 3 rings($18). The answer is $8. ( THIS IS THE COST OF 2 BRACELETS)

<u>1 BRACELET= $4( $8/2)</u>

8 0
3 years ago
What is the domain of this exponential function?
Pavlova-9 [17]

Answer:

Domain = x E R

Step-by-step explanation:

Since an exponential function has no restriction on the "x" value, its domain can range from anywhere on the plane of "x."

3 0
3 years ago
If U.S. Treasury bills are earning 4 percent and the stock investment you are considering has a potential return of 10 percent,
erica [24]

Answer:

Option "D" is the correct answer to the following question.

Step-by-step explanation:

Given:

Return on U.S.Treasury bills = 4%

Potential return on stock investment = 10%

Find:

Additional risk of investing in the stock (Risk premium) = ?

Computation:

⇒ Additional risk of investing in the stock (Risk premium) = Potential return on stock investment - Return on U.S.Treasury bills

⇒  Additional risk of investing in the stock (Risk premium) = 10% - 4%

⇒ Additional risk of investing in the stock (Risk premium) = 6%

7 0
3 years ago
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