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SSSSS [86.1K]
3 years ago
9

A student has received 56, 70, 61 and 46 on his first four college algebra exams this semester. He asked the instructor what gra

de he would need to make on the fifth exam to pass the course. What score will he need to earn to receive 70% or higher on the fifth exam? Set up an equation/inequality and show all work and find the solution.
Please help!
Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
7 0

Let x be the mark he would attain at the fifth exam. Then,

\frac{56+70+61+46+x}{5} \geq 70

\frac{273+x}{5} \geq 70

273 + x ≥ 350

x ≥ 350 - 273

x ≥ 77

So, he should score 77 or more marks in his fifth exam.

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Romashka [77]
Answer:

I think it’s 20 or 26 sorry if I get it worng :(
5 0
3 years ago
Please help me with this question. I will mark brainliest
Hatshy [7]

Answer:

19,350.4 or 19,350 if they want it rounded

Step-by-step explanation:

To find the mean you must add up all the numbers. Then, divode that sum by the amount of numbers you added up.

Explanation:

16,746 + 18,423 + 20,536 + 19,572 + 21,475 = 96,752

96,752/5 = 19,350.40

Hope this helps you out!! : )

4 0
3 years ago
Find the slope of a line passing through the given points. 2,5) and (4,-7) help me
LekaFEV [45]

<em>-7 -5 / 4 -2 / -12/2 </em>

<em>-12/2 = -6 </em>

<em>Slope: -6x </em>

<em>5 = 2(-6) + b</em>

<em>5 = -12 + b </em>

<em>-12 + 17 = 5 </em>

<em>Slope intercept Form: y = -6x + 17</em>

7 0
3 years ago
Two sides and an angle are given. determine whether the given information results in one triangle, no triangle, three triangles,
Crazy boy [7]
We are given 2 sides 18.7, 16.1 and a NON-included angle.
We have to calculate the altitude of the triangle.
altitude = 18.7 * sine (35)
altitude = 18.7 * 0.57358
altitude = <span> <span> <span> 10.725946 </span> </span> </span>
In this case, side c is greater than the altitude and is less than side a so 2 two triangles will be formed.

Source:
http://www.1728.org/trigssa.htm





3 0
3 years ago
Does 3 and the square roots of 8 and 17 form a right triangle
Gala2k [10]
If it’s is a right triangle then
A^2 + B^2 = C^2
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I don’t have a calculator but type that in and if it doesn’t equal 17^2 than the answer is no it doesn’t make a right triangle
4 0
3 years ago
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