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katen-ka-za [31]
3 years ago
11

89+23-21 explain your answer

Mathematics
2 answers:
dolphi86 [110]3 years ago
7 0

Answer:

91

Step-by-step explanation:

PEMDAS rules apply...so addition then subtraction

Blababa [14]3 years ago
3 0

Answer:

91

Step-by-step explanation:

89 + 23 is 112

112 - 21 is 91

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Every time a customer purchases a new computer, one month later they receive a survey in the mail. Eighty-five percent of the su
True [87]

Answer:

Respondents

Step-by-step explanation:

The customers that buy a new computer and receive a survey in the mail about the performance of the computer after one month are called respondents.

They are called respondents because they took part in a survey or poll about the performance of the computer they bought a month ago. Statistically, not everyone that got the mail took part in the poll, those ones are called non respondents, while the ones that took part in the survey are known as respondents.

4 0
3 years ago
Dan is comparing the cost of having printed and prepared by two companies
Kay [80]

For 4 copies, the total cost for preparing and printing will be the same.

Step-by-step explanation:

Let,

p be the number of pages

Company A;

Charges of preparing = $6

Charges of per page print = $2.50

A(p)= 2.50p + 6   Eqn 1

Company B;

Charges of preparing = $4

Charges of per page print = $3

B(p)= 3p + 4    Eqn 2

For equaling the cost;

A(p) = B(p)

2.50p+6=3p+4\\2.50p-3p=4-6\\-0.50p=-2

Dividing both sides by -0.50

\frac{-0.50p}{-0.50}=\frac{-2}{-0.50}\\p=4

For 4 copies, the total cost for preparing and printing will be the same.

Keywords: Addition, division

Learn more about division at:

  • brainly.com/question/4401748
  • brainly.com/question/4459688

#LearnwithBrainly

8 0
4 years ago
A repair service charges $55.00 to come to your home plus $24.50 per hour. Find a function that describes the arithmetic sequenc
Kryger [21]

Answer:

f(x)=24.50x+55

Total cost for 7 hours: $226.5

Step-by-step explanation:

We consider that x is the amount of hours.

24.5*7+55=226.5

171.5+55=226.5

5 0
3 years ago
Im sorry, im not good with negatives and positives xD this is the last one Which values satisfy the inequality? |x| < 3 Choos
Katarina [22]

No.  You can't squirm out of it that easily !  Sorry.

The absolute value of a number is its size without a plus or minus.
So you don't need to be good with plus and minus to work absolute values.

The statement says "the absolute value of 'x' is less than 3".
Let's test each choice and see if it works:

a). x = -6.  The absolute value of  -6  is  6.  Is that less than  3 ?  No.

b). x = -5.  The absolute value of  -5  is  5.  Is that less then  3 ?  No.

c). x = -1.  The absolute value of  -1  is  1.  Is that less than  3 ?  Yes.

d). x = 2.  The absolute value of  2  is  2. Is that less than  3 ?  Yes.

Do you see ?  You don't need to be Einstein or a math whiz
to answer this one.

You're just giving up because people say that girls can't do math,
and instead of telling them where to stick it, you bought into it.

8 0
4 years ago
95 POINTS! PLEASE HELP <br> See picture for true or false math problems. Solve all please
givi [52]

Answer:

1) True

2) True

3) False

4) True

5) True

Step-by-step explanation:

1) -2《3 - 3

-2《0

-2》-3 - 2

-2》-5

2) 4 > -3 + 3

4 > 0

4 > 1 + 2

4 > 3

3) -2《0 - 6

-2《-6 is false

4) 0 - 3 < 4

-3 < 4

0 + 3 > -1

3 > -1

5) 0 > -6 - 3

0 > -9

0 < 3 + 6

0 < 9

4 0
3 years ago
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