The system of equations is d+b=12 and 2.59d+5.49b=36.88 and Meaghan bought 10 packages of hot dogs and 2 packages of hamburgers.
Step-by-step explanation:
Cost of one package of hot dog = $2.59
Cost of one package of hamburgers = $5.49
Packages bought = 12
Cost of packages = $36.88
Let,
Packages of hot dogs = d
Packages of hamburger = b
According to given statement;
d+b=12 Eqn 1
2.59d+5.49b=36.88 Eqn 2
Multiplying Eqn 1 by 2.59
Subtracting Eqn 3 from Eqn 2
Dividing both sides by 2.90
Putting b=2 in Eqn 1
The system of equations is d+b=12 and 2.59d+5.49b=36.88 and Meaghan bought 10 packages of hot dogs and 2 packages of hamburgers.
Keywords: linear equation, elimination method
Learn more about elimination method at:
#LearnwithBrainly
Answer:
- notice: temperature rises quickly at sunrise, and drops before sunset
- wonder: whether this location is shaded by mountains later in the day
Step-by-step explanation:
<u>notice</u>
The temperature starts off below zero in the early morning and stays cold until the sun comes up. Then it warms rapidly to an above zero temperature that peaks in early afternoon. Once the sun gets lower, the temperature starts cooling off again. (The daily temperature range of 25-27 degrees is pretty typical for partly-cloudy sky conditions and stable weather.)
<u>wonder</u>
We wonder if this isn't a location that is on the east- or north-side of a mountain, or in a mountain valley, where the sun hits it early and is shaded later in the day. (The topo map attached seems to show it is in such a location.)
The critical value becomes 2.584 for two tailed test since we have to reject the null hypothesis, t >2.584 or t < -2.584 test stat lie in the rejection region, we have to reject the null hypothesis or claim incorrect.
Data;
- mean = 5.82
- s = 4.93
- n = 600
<h3>Test-Static t </h3>
Let's calculate the t-value
Substitute the values into the equation and solve;
The t-value is 4.079.
The allowed significance value = 0.01
The degree of freedom is n -1, which becomes 600 - 1 = 599.
The critical value becomes 2.584 for two tailed test since we have to reject the null hypothesis, t >2.584 or t < -2.584 test stat lie in the rejection region, we have to reject the null hypothesis or claim incorrect.
Learn more on t-test here;
brainly.com/question/6501190
2e^(x+3)=10
e^(x+3)=5
ln[e^(x+3)]=ln 5
(x+3)ln e=ln 5
(x+3)=ln 5
x=(ln 5)-3
Answer: x=(ln 5) - 3
Answer:
i believe it is 30in. if not i'm sorry
Step-by-step explanation:
A = b*h
A = 10in * 3in
