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Vika [28.1K]
3 years ago
14

The fuel efficiency of a car decreases as tire pressure decreases. What's the independent variable in the situation? A. Tire pre

ssure B. The price per gallon of gas C. The speed of the car D. Fuel efficiency

Mathematics
2 answers:
defon3 years ago
8 0

Hello There!

The fuel efficiency of a car decreases as tire pressure decreases. The independent variable in the situation is: Tire pressure.

aalyn [17]3 years ago
8 0

Answer:

A

Step-by-step explanation:

The Price per gallon goes with the fuel efficiency and the speed of the car determines how much gas you use so the answer is A Tire Pressure

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Bess [88]

Answer:

4c+6a\leq120\\\\4c+4a\leq100

Step-by-step explanation:

Let c represents child bikes and a represents adult bikes.

Given :  Each child bike requires 4 hours to build and 4 hours to test. Each adult bike requires 6 hours to build and 4 hours to test.

With the number of workers, the company is able to have up to 120 hours of building time and 100 hours of testing time for a week.

Then, the required system of inequality :-

4c+6a\leq120----(1)\\\\4c+4a\leq100-----(2)

If company make 10 child bikes and 12 adult bikes in the week.

Then Put c=10 and a=12 bikes in (1) and (2).

4(10)+6(12)=40+72=112\leq120⇒Bike order meets the restrictions

4(10)+4(12)=40+48=88\leq100⇒Bike order meets the restrictions

Hence, the system of inequality best explains whether the company can build 10 child bikes and 12 adult bikes in the week.

4c+6a\leq120\\\\4c+4a\leq100

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3 years ago
Packages of laundry soap are labeled 70 oz, but they are actually filled with mean contents of 70.2 oz and standard deviation 0.
kozerog [31]

Answer:

Step-by-step explanation:

3 0
3 years ago
Estimate the product. Solve using an area model and the standard algorithm. Remember to express your products in standard form.
snow_tiger [21]

Answer:

Step-by-step explanation:

Using the area model and standard algorithm, we have:

                332   (tenths)

         <u> ×       21  </u>

                332

        <u>      664     </u>

        <u>      6972  </u> tenths = 697.2

<u />

              30      +      3      tenths

     1       300           32         332

    20     600           64         664

33.2 × 21 =<u>    30    </u> × <u>    1     </u>  =  <u>      30     </u>

8 0
3 years ago
Combine the like terms to create an equivalent expression: r+(−5r)
nevsk [136]

Answer:

-4r

Step-by-step explanation:

Since r and -5r both have the same variable, we can combine them

r-5r = -4r

r+(−5r) = -4r

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