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kondaur [170]
2 years ago
9

What type of number is -421

Mathematics
1 answer:
ludmilkaskok [199]2 years ago
3 0

Answer:

integers, rationals, irrational, real numbers, imaginary, and complex numbers.

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You work for a carpet company. You sell carpets at these prices: 100 square feet for $67, 200 square feet for $130, 400 square f
GrogVix [38]

Answer:

Step-by-step explanation:

first one : 67/100 = .67 per sq feet

Second one: 130/200 = .65 per sq feet

Third one 240/400 = .6 per sq feet

Fourth one: 504/800 .63 per sq feet

so C is the best deal (C.

400 square feet of carpet for $240)

4 0
3 years ago
Over the last three evenings, Diane received a total of 105 phone calls at the call center. The third evening, she received 4 ti
sergij07 [2.7K]

Answer:

Make an eqaution from here.
Let’s make evening 2 “x”

So the first evening has 9 less then the secon evening so…
x-9
Of course theres the second evening (x).

X-9+x
Then the third evening has 4 times as much as the second meeting so…
x-9+x+4x

And when solved, it has to equal 105.

So solve from here.
Combine like terms.

6x-9=105
Isolate

6x=114
x= 19

First evening is 9 less then 19, so 10.

The second evening was 19 calls.
The third evening was 4 times the second evening so, 19*4= 76

1st night = 10

2nd night= 19 calls
Thrid night= 76 calls

8 0
2 years ago
The sum of the first terms of an Arithmetic progression (Ap) is 130.if the fifth term is 3times,the first term,find the (a)commo
Nadusha1986 [10]

Answer:

For part a)

130 = 10/2[2a+(10-1)d]

Simplify, u get

2a + 9d = 26.................(1)

Also U5 = a + (5-1)d = 3a

Simplify, u get

a= 2d...................(2)

Substituting for a in equation 1,

2(2d)+9d= 26

Solving for d, we get

d = 2

In part b) substituting for d in equation 2 to get the first term

a = 2(2) = 4

Part c) the no. of terms required can be obtained by solving

28 = 4+(n-1)2

n = 13

5 0
3 years ago
The sum of three consecutive numbers is 498.what is the 3rd number
marshall27 [118]

Answer:

Denote 3 consecutive numbers as: (n-1), n, (n+1)

=> n - 1 + n + n + 1 = 498

=> 3*n = 498

=> n = 166

=> n + 1 = 166 + 1 = 167

=> 3rd number is 167

8 0
3 years ago
Nnnkkkkktttttttttttttttttttttttttttttttttt
Bogdan [553]

Answer:

What?????/

Step-by-step explanation:

6 0
2 years ago
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