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Arlecino [84]
3 years ago
13

Solve the below problems being sure to provide the correct significant figures.

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
3 0
240 divided by 12.3 is19.5121
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Please help!! I don’t get it
Marrrta [24]

Answer:

Each hotdog costs $1.65

Each juice drink costs $1.05

Step-by-step explanation:

Let's begin by letting x represent the number of hot dogs and y the number of juice drinks.

The Baxter family bought 6 hot dogs and 4 juices for $14.10.

6x + 4y = 14.10

The Farley family bought 3 hot dogs and 4 juices for $9.15.

3x + 4y = 9.15

Now, we subtract these equations.

6x + 4y = 14.10\\- (3x + 4y = 9.15)

Since y has reversed coefficients, it gets eliminated. Now solve for x.

6x+4y-3x-4y=14.1-9.15\\3x = 4.95\\\frac{3x}{3} = \frac{4.95}{3}

\frac{4.95}{3} = 1.65

x = 1.65

NOW, we find y by substituting x with 1.65 (in either equation).

We'll use the first equation.

6x + 4y = 14.10

6(1.65) + 4y = 14.10

9.9 + 4y = 14.10\\4y = 14.1 - 9.9\\4y = 4.2

\frac{4y}{4} = \frac{4.2}{4} \\y = 1.05

x = 1.65

y = 1.05

x represents hotdogs and y represents juice drinks.

Therefore, each hotdog costs $1.65 and each juice drink costs $1.05.

<em> I hope this helps! :)</em>

6 0
3 years ago
Find the values of y<br> y² =225
strojnjashka [21]
Answer: y = 15

Step-by-Step Explanation:

=> y^2 = 225

Therefore,
y = √225
=> y = 15

Hence, y = 15
7 0
2 years ago
a taxi driver charges a fixed rate of r to pick up a passenger. in addition,the taxi driver charges a rate of m for each mile dr
AVprozaik [17]

n x m + r = t

number of miles times cost per mile plus fixed rate equals total

7 0
4 years ago
Read 2 more answers
On monday the high was 60 degrees Fahrenheit on tuesday the temperature dropped by 20% what was the temperature on tuesday
Vikki [24]
On Tuesday it was 48 degrees
3 0
3 years ago
F the quadratic function f(x) = x2^2 is graphed below along with the quadratic function g(x) which of the following could
vampirchik [111]

Answer: g(x)= -1/2x^2

Step-by-step explanation: since the parabola is opening downwards it would have to be a negative so all we are left with is g(x)=-2x^2 and g(x)-1/2x^2 and if we go in the calculator and type up each equations you would see our answers is g(x)=-1/2x^2

6 0
3 years ago
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