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valentinak56 [21]
3 years ago
5

A man buys 3 burgers and 2 jumbo deluxe fries for $7.40. A woman buys one burger and 4 jumbo deluxe fries for $7.80. How much is

the burger and how much are the fries?Select one:a. Burger = $1.40, Fries = $1.60b. Burger = $1.50, Fries = $1.80c. Burger = $2.80, Fries = $2.00d. Burger = $2.00, Fries = $2.80

Mathematics
2 answers:
MArishka [77]3 years ago
8 0

Answer: A. See photo for work.

Step-by-step explanation:

IrinaVladis [17]3 years ago
8 0

Answer:the cost of one burger is $1.4 and the cost of one fry is $1.6

Step-by-step explanation:

Let x represent the cost of one burger.

Let y represent the cost of one fry.

A man buys 3 burgers and 2 jumbo deluxe fries for $7.40. This means that

3x + 2y = 7.4 - - - - - - - - - 1

A woman buys one burger and 4 jumbo deluxe fries for $7.80. It means that

x + 4y = 7.8 - - - - - - - - -2

Multiplying equation 1 by 1 and equation 2 by 3, it becomes

3x + 2y = 7.4

3x + 12y = 23.4

Subtracting

- 10y = - 16

y = - 16/- 10 = 1.6

Substituting y = 1.6 into equation 2, it becomes

x + 4 × 1.6 = 7.8

x = 7.8 - 6.4 = 1.4

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jeyben [28]

<span>77.5% can also be written as 77.5/100, but if you're the mathematical notation police, people don't like decimals on a fraction, sooo, an equivalent form is: </span>

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5 0
3 years ago
Is 21,063 divisible by three? If it is, write a number as a product of three and another factor if not, explain
Zarrin [17]
Twenty-one thousand and sixty-three divided by three is 7021

First, take any number (for this example it will be 492) and add together each digit in the number (4+9+2 = 15). Then take that sum (15) and determine if it is divisible by 3. The original number is divisible by 3 (or 9) if and only if the sum of its digits is divisible by 3 (or 9).If a number is a multiplication of 3 consecutive numbers then that number is always divisible by 3. This is useful for when the number takes the form of (n * (n - 1)*(n + 1))Example: 492 (The original number). 4 + 9 + 2 = 15 (Add each individual digit together). 15 is divisible by 3 at which point we can stop. Alternatively we can continue using the same method if the number is still too large: 1 + 5 = 6 (Add each individual digit together). 6 ÷ 3 = 2 (Check to see if the number received is divisible by 3). 492 ÷ 3 = 164 (If the number obtained by using the rule is divisible by 3, then the whole number is divisible by 3)
4 0
3 years ago
Can someone help me how to do this pls
True [87]

Answer:

the most closest answer is D because the formula is 3.14 x radius² x height

Step-by-step explanation:

if its right can I have brainliest

4 0
2 years ago
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Marrrta [24]

Answer:

yes

Step-by-step explanation:

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btw just copy/paste :P

4 0
3 years ago
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wolverine [178]

Answer:

The answers would be

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Step-by-step explanation:

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5 0
3 years ago
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