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lina2011 [118]
3 years ago
15

The math class has a set of 40 calculators, and 85% of the calculators have working batteries. How many calculators need new bat

teries
Mathematics
1 answer:
777dan777 [17]3 years ago
6 0

Answer:

6

Step-by-step explanation:

you will multiply 40 times .85 since the percent you move the period two times to the left you will get an answer of 34.

you will then subtract 34 out of the 40 and you will get the answer 6.

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Which of the following is equivalent to 75/4 <br> A- 18 3/18<br> B- 18 3/4<br> C- 71<br> D- 79
sattari [20]
B.
4 goes into 75 18 times and has a remainder of 3, so it’s 18 3/4
5 0
3 years ago
Read 2 more answers
Ok So I an taking algebra 1 and this question is really confusing me.
V125BC [204]
You use the arithmetic sequence formula and input the information given to you.
tn = a + (n-1)d
t(56) is what your looking for so don't worry about the tn.
a is your first term,
a = 15.
n is the position of the term you are looking for, n = 56.
And d is the common difference, you find this by taking t2 and subtracting t1. t2=18 and t1=15.
d = 18 - 15 = 3
Inputting it all into the formula you get,
t(56) = 15 + (56-1)(3)
term 56 = 180.
You use this formula to find any term in a sequence provided you are given enough info. You can also manipulate it if you are asked to find something else like the first term(a), common difference(d) or term position(n). It just depends on what the question is asking and what information you are given. :)
Hope this helps!

7 0
3 years ago
Tara wants to put a white fence aroung the yard including the garden. Write an
Cerrena [4.2K]

The perimeter of a rectangle is 2L + 2W, where L and W are the length and width, respectively. The dimensions of the garden are given, 6 x 12 ft.

 

The amount of fencing needed is 2(6) + 2(12) = 12 + 24 = 36 ft of fencing

6 0
2 years ago
Whats the area of x=9 ft, x=22ft, and z=109*
jekas [21]
The answer is 361 to the third power
8 0
3 years ago
Factorize <br><img src="https://tex.z-dn.net/?f=a%20%7B%7D%5E%7B2%7D%20%20-%209b%20%7B%7D%5E%7B2%7D%20" id="TexFormula1" title="
lakkis [162]

Answer:

(a - 3b)(a + 3b)

Step-by-step explanation:

a² - 9b²

(a)² - (3b)²

(a - 3b)(a + 3b)

3 0
3 years ago
Read 2 more answers
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