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natima [27]
2 years ago
13

Hey besties I need help

Mathematics
2 answers:
larisa86 [58]2 years ago
8 0

Answer:

ok

Step-by-step explanation:

yes

jarptica [38.1K]2 years ago
7 0
3-4 No 5-7 Yes

Explanation:
If you substitute each number in for z and multiply by the coefficient, 8, you’ll find that 8*3=24, 8*4=32 which are both less than 40, not greater than or equal to as is asked for. On the other hand, you have 8*5=40, 8*6=48 and 8*7=56, all either equal to or greater than 40.
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Heather can complete two problems in ten minutes, and when she started she had three problems done. Joel can complete three prob
Hunter-Best [27]
If Heather can do 2 in 10 minutes, then that means that she can do 12 in 1 hour. If Joel can do 3 in 15 minutes, then it means that he can do 12 in 1 hour. Add the number of problems they can do total and that will go between 30 and 50. It is just "less than", not "less than or equal to" because you want to know when the total number goes between the numbers.
Therefore, the correct answer must be <span>30 < 24x + 5 < 50.</span>
3 0
3 years ago
Mason has a collection of .49 stamps, .20 stamps and .3 stamps worth 23.55. He has 56 total .49 and .20 stamps and the number of
Nezavi [6.7K]

Answer: Mason has 40 forty-nine cent stamps, 16 twenty cent stamps and 25 three cent stamps

Step-by-step explanation:

Let x represent the number of 49 cent stamps that Mason has.

Let y represent the number of 20 cent stamps that Mason has.

Let z represent the number of 3 cent stamps that Mason has.

Mason has a collection of 49 cent stamps, 20 cent stamps, and 3 cent stamps worth $23.55. This means that

0.49x + 0.2y + 0.03z = 23.55 - - - - -1

He had 56 total 49 cent and 20 cent stamps. This means that

x + y = 56

x = 56 - y

The number of 3 cent stamps is nine more than the number of 20 cent stamps. This means that

z = y + 9

Substituting x = 56 - y and z = y + 9 into equation 1, it becomes

0.49(56 - y) + 0.2y + 0.03(y + 9) = 23.55

27.44 - 0.49y + 0.2y + 0.03y + 0.27 = 23.55

27.44 + 0.27 - 0.49y + 0.2y + 0.03y = 23.44

27.71 - 0.26y = 23.55

- 0.26y = 23.55 - 27.71

- 0.26y = - 4.16

y = - 4.16/ - 0.26y

y = 16

x = 56 - y = 56 - 16

x = 40

z = y + 9 = 16 + 9

z = 25

7 0
3 years ago
A recipe calls for 3.75 cups of flour. What is this amount as a mixed number in simples form?
ddd [48]

0.75 is 3/4 and 3 is 3 so the mixed number is 3 3/4

8 0
3 years ago
Read 2 more answers
OK right image and easier to read lol
Brums [2.3K]

Answer:

you want us to do all that

Step-by-step explanation:

6 0
3 years ago
Which situation represents the greatest percent of change?
ra1l [238]
The answer is B!!!!!
5 0
3 years ago
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