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devlian [24]
3 years ago
12

Four cups are placed upturned on the counter. each cup has the same number of sweets and a declaration about the number of sweet

s in it. The declaration are: Five or six, seven or eight, six or seven, seven or five. Only one of the declaration is correct. How many sweets are there under each cup?
Mathematics
1 answer:
Mumz [18]3 years ago
4 0

Answer:

6?    i hope this helps some!   :)

Step-by-step explanation:

each has 6 in between the number

5 or 6 p there is a possibility of there being 6

7 or 8 there is at least 6 in this cup

6 or 7 there is at least 6 in this cup

7 or 5 there is a possibility of there being 6

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Answer:

a. 2:3, b. 25 students, c. 3:2

Step-by-step explanation:

a. 5 (total) - 2 (with glasses) = 3 (without glasses), making the ratio 2:3.

b. We can assign the total students with the variable x. 3:5=15:x, 75=3x, x=25. 25 total students.

c. 25 (total students) - 15 (without glasses) = 10 (with glasses). (10+5):(15-5) is 15:10, which, when simplified, equals to 3:2.

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Clarence saved 19% of the money he earned. If he earned $90, how much did Clarence save?
Tcecarenko [31]

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3 years ago
What is the solution to the system?<br> X+3y = 5<br> 5x-3y = 7
S_A_V [24]

Answer:

x + 3y = 5

5x - 3y = 7

Add up both equations, then:

6x = 12

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=> y = (5 - 2)/3 = 1

5 0
3 years ago
Read 2 more answers
Please someone help me!!!! SHOW ALL WORK! ive been stuck on this question for 2 days!! :((((((
Otrada [13]

Step-by-step explanation:

x² + y² − 8x + 10y − 8 = 0

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x² − 8x + y² + 10y = 8

To complete the square, take half of the x and y coefficients, square it, then add the result to both sides.

(-8/2)² = 16

(10/2)² = 25

x² − 8x + 16 + y² + 10y + 25 = 8 + 16 + 25

x² − 8x + 16 + y² + 10y + 25 = 49

Factor the squares:

(x − 4)² + (y + 5)² = 49

The center is (4, -5) and the radius is 7.

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fredd [130]

Answer:

-1

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