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shtirl [24]
3 years ago
7

Can anyone help me how to do this?

Mathematics
1 answer:
noname [10]3 years ago
8 0
The sum of the internal angles in a simple pentagon is 540°.

105 + 135 + 92 + 87 = 419

540 - 419 = 121

The angle is 121
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Footlocker in the mall is having a 25% off sale on all tennis shoes. Joe paid $67.50 for his
marta [7]

Answer:

The original price of the shoes was $90.

Step-by-step explanation:

25% off means the price Joe paid for it is 75% of the original price.

Set up an equation:

75/100 = 67.50/x

Cross multiply

75 × x = 100 × 67.50

75x = 6750

x = 90

Check our work:

First solve for 25% off of 90 (our answer).

25% = 0.25

90 × 0.25 = 22.50

Next, subtract the discount from 90.

90 - 22.50 = 67.50

67.50 was what Joe paid so this is correct.

8 0
2 years ago
I really need help with b I have already done a
marishachu [46]

Answer:

Step-by-step explanation:

In the first pattern, there were 6 sticks

In the second pattern, there were 10 sticks.

In the third pattern, there were 14 sticks.

Based on the pattern, we see that each time, 4 more sticks are added and that the initial amount of stick is 6.

Thus: the equation for how many sticks there would be in pattern n is:

# of sticks in pattern n = 6 + 4n

Hope that helps!

3 0
2 years ago
The polyatomic ion with the formula HPO42- is called
schepotkina [342]

Answer:

hydrogen phosphate

Step-by-step explanation:


6 0
3 years ago
Read 2 more answers
Out of 720 students,120 have failed.What percentage of students failed the exam?​
Arturiano [62]

Answer:

<em>83.33%</em>

<em>Total no. of students = 720</em>

<em>No. of students who failed = 120</em>

<em>Therefore no. of students passed = 720 120= 600</em>

<em>Therefore pass percentage = 600/720* 100 = 83.33%</em>

Step-by-step explanation:

<em>I </em><em>hope</em><em> it</em><em> will</em><em> help</em><em> you</em><em>.</em><em>.</em><em>.</em>

<em>kai6417</em>

<em>#</em><em>c</em><em>a</em><em>r</em><em>r</em><em>y</em><em>o</em><em>n</em><em>l</em><em>e</em><em>a</em><em>r</em><em>n</em><em>i</em><em>n</em><em>g</em>

5 0
2 years ago
Read 2 more answers
Find (2 × 107) (3 × 104).
Zarrin [17]
The answer will be 66768
3 0
3 years ago
Read 2 more answers
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