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SashulF [63]
3 years ago
8

HELP PLEASE!!!

Mathematics
1 answer:
gladu [14]3 years ago
5 0

Step-by-step explanation:

Let x be the next exam's score.

We have 81 + 85 + 91 + x > 4(85).

=> 257 + x > 340

=> x > 83

Therefore the student must score above 83.

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A school is designing two rectangular parking lots. The second parking lot is being designed so that its perimeter is 3/4 of per
Nataly [62]

The perimeter of second plot is 180 feet

<em><u>Solution:</u></em>

Given that,

The second parking lot is being designed so that its perimeter is 3/4 of perimeter of the first parking lot

<h3><u>Find the perimeter of first plot:</u></h3>

Perimeter = 2(length + width)

From given figure in question,

length = 40 feet

width = 80 feet

Therefore,

Perimeter = 2(40 + 80)

Perimeter = 2(120) = 240

Thus, we got,

Perimeter of first parking plot = 240 feet

Also, given that,

\text{Perimeter of second plot }= \frac{3}{4} \times \text{Perimeter of first parking plot}\\\\\text{Perimeter of second plot }= \frac{3}{4} \times 240\\\\\text{Perimeter of second plot }= 180

Thus perimeter of second plot is 180 feet

6 0
4 years ago
​Together, teammates Pedro and Ricky got 2677 base hits last season. Pedro had 285 more hits than Ricky. How many hits did each
abruzzese [7]
So basically, you subtract (2677-285 = 2392) then you divide by 2 (2392/2=1196) so Ricky has 1196 and Pedro has 1481
7 0
3 years ago
Find the average rate of change for f(x) = x2 + 7x + 10 from x = 0 to x = 2. A) 5 B) 7 C) 9 D) 11
Studentka2010 [4]

f(x) = x² + 7x + 10

f(0) = (0)² + 7(0) + 10  = 10  ----> (0, 10)

f(2) = (2)² + 7(2) + 10 = 28  -----> (2, 28)

rate of change is slope: \frac{y_{2}-y_{1}}{x_{2}-x_{1}} = \frac{28-10}{2-0} = \frac{18}{2} = 9

Answer: 9

3 0
3 years ago
2/5 divided by 8/9 I need answer right now.
Lynna [10]

Answer:.45

Step-by-step explanation:

2/5 ÷ 8/9 KCF

18/40

5 0
3 years ago
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A tank in the shape of an inverted right circular cone has height 4 meters and radius 2 meters. It is filled with 2 meters of ho
PtichkaEL [24]

The solution is in the attachment

8 0
4 years ago
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