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raketka [301]
3 years ago
15

Please what is the answer

Mathematics
2 answers:
choli [55]3 years ago
5 0

Answer:

21

Step-by-step explanation:

Svetach [21]3 years ago
4 0

Answer:

21

Step-by-step explanation:

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Helppp plzzzzzz help me right now plz i need help
Bond [772]

Answer:

the third one is the correct answer

5 0
3 years ago
What is the answer to this question 2+2=4-1=?
Aleonysh [2.5K]

2 + 2 = 4 - 1
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8 0
4 years ago
4 days I have 140 copies of a book, 9 days I only have 50 left. Write an equation where c(t)=my+b where c is number of copies st
alexandr402 [8]

Answer:

c(t)=-18t+212.

Step-by-step explanation:

We have been given that 4 days I have 140 copies of a book, 9 days I only have 50 left. We are asked to write an equation c(t)=my+b, where c is number of copies still on hand and t days being available.

We have two points on line (4,140) and (9,50). Now, we will use these points to find slope as:

m=\frac{140-50}{4-9}

m=\frac{90}{-5}

m=-18

Now, we will use point-slope form of equation y-y_1=m(x-x_1) and substitute m=-18 and coordinates of point (9,50) as:

y-50=-18(x-9)

y-50=-18x+162

y-50+50=-18x+162+50

y=-18x+212

Therefore, our required equation would be c(t)=-18t+212.

5 0
4 years ago
A dining set is priced at $785. If the sales tax is 7 percent, what is the cost to purchase the dining set? Round to the nearest
nalin [4]

Answer:

$839.95

Step-by-step explanation:

Sales tax = 7 % × cost

Sales tax = 0.07 × 785

Sales tax = $54.95

=====

Cost = price + sales tax

Cost = 785 + 54.95

Cost = $839.95

The cost to purchase is $839.95.

6 0
3 years ago
Read 2 more answers
5
Mandarinka [93]

Answer:

2.69 maybe not so sure ..

8 0
3 years ago
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