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Vesna [10]
3 years ago
6

​you are taking a math course in which there will be four​ tests, each worth 100 points. you have scores of 89​, 93​, and 98 on

the first three tests. you must make a total of 360 in order to get an
a. what scores on the last test will give you an​ a?
Mathematics
1 answer:
sergij07 [2.7K]3 years ago
8 0

89+93+98 = 280

360 - 280 = 80 marks is needed for the last test

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Please help me with this problems.Thanks.
almond37 [142]
Hi!
Alrighty, so there are 5 sets of 50 in 250 (250 divided by 50), so just take 50 times 12 and get 60! Hope that helped :)
7 0
3 years ago
Read 2 more answers
8x - 8 - x = 3 (6 - 2x)
Ksivusya [100]

Answer:

x = 2

Step-by-step explanation:

8

−

8

−

=

3

(

6

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)

{\color{#c92786}{8x}}-8{\color{#c92786}{-x}}=3(6-2x)

8x−8−x=3(6−2x)

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(

6

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7 0
3 years ago
The domain and f^1(x)
TEA [102]

B

To solve for the inverse, just swap the x and y and solve for the new y.

y=\sqrt{x} -8

x=\sqrt{y}-8

x+8=\sqrt{y}

(x+8)^2=y

Then inspect both functions for the domain.

In the original function, x has to be greater than or equal to 0 or else you would have a negative square root which is impossible.

The inverse function has no limitations as any x could make that true.

The main things that will limit domain is square root of negative or divide by zero.

Therefore, x>=0 is the only domain restriction.

8 0
3 years ago
How many
MariettaO [177]

Answer:

5

Step-by-step explanation:

92/17= 5.4

there are 5 total 17s in 92.

6 0
3 years ago
The ticket sales for Fist Bump are as follows:
Fed [463]
Notice that the denominators are 3 and 7, which are factors of 21.

So express all the fractions with denominator 21:

On Monday \frac{1}{7} = \frac{1}{7} * \frac{3}{3} = \frac{3}{21} are sold
On Tuesday \frac{1}{3} = \frac{1}{3} * \frac{7}{7} = \frac{7}{21} are sold
On Wednesday \frac{2}{7} = \frac{2}{7} * \frac{3}{3} = \frac{6}{21} are sold


by Thursday \frac{3}{21}+\frac{7}{21}+\frac{6}{21} = \frac{3+7+6}{21}= \frac{16}{21} of the tickets was sold.


Answer: \frac{16}{21}

8 0
3 years ago
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