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goldenfox [79]
2 years ago
6

If i have a 91% in a class and i got a 78% on a test, and the test is 20% of my grade, what will my grade in the class be once t

he test grade is added to my 91%?
Mathematics
2 answers:
Serggg [28]2 years ago
7 0

Answer:

98%

Step-by-step explanation:

You add 78 and 20.

Tell me if it is wrong.

Thank you.

Elden [556K]2 years ago
4 0

Answer:

98% = A

Step-by-step explanation:

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Help please! Could you explain it too?
Anettt [7]

Answer:

a) not proportional

b) proportional; k = -\frac{3}{5}

Step-by-step explanation:

a) for any proportional equation, the line must pass through the origin. The equation in a) is y = 4x + 1, and the '+1' is the y-intercept. This means that the line does not pass through the origin, so x and y cannot increase by the same amount (i.e. they are not proportional).

Another way to determine this is is to use the y = kx base. If you have an equation that fits that it's likely proportional.

Here, if the equation was only y = 4x then it'd be proportional because u can see that k = 4. This is not the equation though, and the 4x + 1 doesn't fit to the y = kx formula so it can't be proportional.

b) straight away you can see that there's no 'c' term (y = mx + c) which means the y-intercept is 0, so the line passes through the origin. While this does not immediately mean the line is proportional, you can make sure that it is by checking it fits with the y = kx equation.

y = -(3/5)x fits with y = kx, with k being -3/5

3 0
2 years ago
Homework help please I'll give you 10 points and brainliest
DaniilM [7]

Answer:

c)

Step-by-step explanation:

Use 49 instead of 14 for 7²

Reason: 7² = 7 * 7 = 49

Not 14 as 7*2 = 14

6 0
2 years ago
Please help solve please
irina1246 [14]
You just solved it.... do u need the work shown?
8 0
3 years ago
Area between two shapes. Geometry IXL pls help !
uysha [10]

Answer:

The answer to your question is A = 441.50 km²

Step-by-step explanation:

Data

Big triangle           Small triangle

base = 33 km       base = 19 km

height = 40 km     height = 23 km

Process

1.- Calculate the area of the big triangle

Area = base x height / 2

Substitution

Area = 33 x 40 / 2

        = 1320 / 2

        = 660 km²

2.- Calculate the area of the small triangle

Area = 19 x 23 / 2

        = 437 / 2

        = 218.5 km²

3.- Subtract the small area to the big area

Share area = 660 - 218.5

                 = 441.50 km²

4 0
3 years ago
Read 2 more answers
What is 7 to the 7th power<br><img src="https://tex.z-dn.net/?f=7%20%5Ctimes%207%20%5Ctimes%207%20%5Ctimes%207%20%5Ctimes%207%20
PilotLPTM [1.2K]
7 to the 7th power is 823,543
3 0
3 years ago
Read 2 more answers
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