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lys-0071 [83]
2 years ago
13

PLEASE HELP ME I AM ON A TEST PLEASE!!!!!!!!!!!!

Mathematics
2 answers:
Kobotan [32]2 years ago
4 0

Answer:

1st. Add 5 each time so 5 times 12 = 60 so

5

10

15

20

25

30

35

40

45

50

55

60

2: H = 5M

Step-by-step explanation:

OLEGan [10]2 years ago
4 0

Answer:

5  457

Step-by-step explanation:

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The length of a rectangle is 5 more than twice the width. If the perimeter of the rectangle is 34, what is the length?
larisa86 [58]
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C. 13


5 more than twice the width is 13

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A librarian wants to spend no more than $800 on some new desks and chairs for the library. The librarian decides to spend $320 o
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Answer:

I think 20

Step-by-step explanation:

480/24

6 0
3 years ago
Read 2 more answers
Multiply 613 by the reciprocal of −716.
IrinaVladis [17]
=613*-1/716
=-613/716
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3 years ago
Is 90 ten times as much as 0.9
Evgen [1.6K]
No it is 0.9x10= 9. 0.9x 100 would be 90
8 0
3 years ago
Jenny and Natalie are selling cheesecakes for a school fundraiser. Customers can buy chocolate cakes and vanilla cakes. Jenny so
IrinaVladis [17]

The cost of 1 chocolate cake is $ 6 and cost of 1 vanilla cake is $ 7

<em><u>Solution:</u></em>

Let "c" be the cost of 1 chocolate cake

Let "v" be the cost of 1 vanilla cake

<em><u>Jenny sold 14 chocolate cakes and 5 vanilla cakes for 119 dollars</u></em>

Therefore, we can frame a equation as:

14 x cost of 1 chocolate cake + 5 x cost of 1 vanilla cake = 119

14 \times c + 5 \times v=119

14c + 5v = 119 ------- eqn 1

<em><u>Natalie sold 10 chocolate cakes and 10 vanilla cakes for 130 dollars</u></em>

Therefore, we can frame a equation as:

10 x cost of 1 chocolate cake + 10 x cost of 1 vanilla cake = 130

10 \times c + 10 \times v = 130

10c + 10v = 130 -------- eqn 2

<em><u>Let us solve eqn 1 and eqn 2</u></em>

Multiply eqn 1 by 2

28c + 10v = 238 ------ eqn 3

<em><u>Subtract eqn 2 from eqn 3</u></em>

28c + 10v = 238

10c + 10v = 130

( - ) --------------------------

18c = 108

c = 6

<em><u>Substitute c = 6 in eqn 1</u></em>

14(6) + 5v = 119

84 + 5v = 119

5v = 119 - 84

5v = 35

v = 7

Thus cost of 1 chocolate cake is $ 6 and cost of 1 vanilla cake is $ 7

8 0
3 years ago
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