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ExtremeBDS [4]
3 years ago
8

A=3 and c=2 10a - 3 - 5c - 2c

Mathematics
1 answer:
KiRa [710]3 years ago
8 0

Answer:

13

Step-by-step explanation:

10(3)-3-5(2)-2(2)=13

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three adults and four children must pay $107. two adults and three children must pay $76. find the price of the adult ticks and
jenyasd209 [6]
Assigning "a" as cost of adult tickets and "c" the cost of children's tickets.

3a + 4c = 107
2a + 3c = 76

elimination method
2(3a + 4c = 107)
-3(2a + 3c = 76)

6a + 8c = 214
-6a - 9c = -228
----------------------
0 - c = - 14
c = 14

Then 2a + 3(14) = 76
2a = 76 - 42
2a = 34
a = 34/2
a = 17


8 0
3 years ago
The temperature in Hokkaido in Japan was -8 degrees at 24:00 one night. By 09:00 the temperature had risen 12 degrees. What was
likoan [24]

Answer:

4

Step-by-step explanation:

On a number line you will got to -8 and go up 12 and you would get 4

5 0
2 years ago
If 2 apple and 5 bananas cost 4.20 dollars and 3 apples and 4 bananas coke 4.So dollars what is the price of a apple and banana
e-lub [12.9K]

Answer:

An apple costs $0.45 and a banana costs $0.66.

Step-by-step explanation:

This question is solved by a system of equations.

I am going to say that:

An apple costs x.

A banana costs y.

2 apple and 5 bananas cost 4.20 dollars

This means that:

2x + 5y = 4.2

So

2x = 4.2 - 5y

x = 2.1 - 2.5y

3 apples and 4 bananas cost 4.

This means that:

3x + 4y = 4

Since x = 2.1 - 2.5y

3(2.1 - 2.5y) + 4y = 4

6.3 - 7.5y + 4y = 4

3.5y = 2.3

y = \frac{2.3}{3.5}

y = 0.66

Then:

x = 2.1 - 2.5(0.66) = 0.45

An apple costs $0.45 and a banana costs $0.66.

7 0
3 years ago
Which sample is better for making a prediction? Explain. Sample A: A random sample of 10 customers leaving a store Sample B: A r
andrezito [222]

Answer: Sample B: A random sample of 100 customers leaving a store

Step-by-step explanation: In mathematics and especially when gathering data, you will gather the most accurate results with a larger portion. The larger portion will ensure a more accurate reading.

3 0
2 years ago
HELP ME PLZ URGENT DUE TODAY
storchak [24]

Answer:

8377

Step-by-step explanation:

Growth rate is exponential, so it is determined by the formula (1+growth rate)^n where n is years

1.035^15 = 1.675...

multiply by 5000, you get 8376.744....

7 0
3 years ago
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