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stellarik [79]
2 years ago
14

Solve it by Substitution

Mathematics
1 answer:
natka813 [3]2 years ago
7 0
30 in each bus. 17 in each van

To solve this problem, we first have to create a system of equations. After that, you set the equations equal to each other, and use that to simplify and find the value of one variable. Once that is found that answer can be plugged into one of the two original equations to find the other variable.

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A recipe calls for 5.0 qt of milk. what is this quantity in cubic centimeters?
Ede4ka [16]
To answer this question, you need to understand how to convert unit. In this case, it will be quarts(qt) into centimeter cubic(cm3). A quart is 1/4 gallon and one gallon equal to <span>3 785.4 cm3. Then the calculation would be: 
5qt of milk * 0.25 gallon/qt * </span>3 785.4 cm3/gallon= 4731.75 cm3
5 0
3 years ago
Brian's math test scores are: 86, 90, 93, 85, 79, 92. What is the mean and median?
IgorLugansk [536]

Answer:

Median: 89

Mean: 87.5

Step-by-step explanation:

86, 90, 93, 85, 79, 92

93, 85

93 + 85

178

178/2

89

86 + 90 + 93 + 85 + 79 + 92

525

525/6

87.5

4 0
3 years ago
How many x intercept appear on the graph of the polynomial function F(x)=x4-5x2
4vir4ik [10]
f(x)=x^4-5x^2\\\\x^4-5x^2=0\\\\x^2(x^2-5)=0\\\\x^2[x^2-(\sqrt5)^2]=0\\\\x^2(x-\sqrt5)(x+\sqrt5)=0\iff x=0\ \vee\ x=\sqrt5\ \vee\ x=-\sqrt5

Answer: 3 x-intercepts.

3 0
3 years ago
A school has 500 students. 340 are boys
bogdanovich [222]

Answer:

p = 8/25

Step-by-step explanation:

500 - 340 = 160 girls

p = 160/500

p = 8/25

5 0
3 years ago
If w= &lt;2, -5&gt; and y= 2,0&gt;, find 2w+y
Eva8 [605]

Answer:

B

Step-by-step explanation:

F un gong jjkpjm d gjgyfgdbb

3 0
3 years ago
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