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Ksivusya [100]
3 years ago
6

How to find a and b in the equation below. 3(a+b)=28

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
3 0

Answer:

a equals  and b equals 7

Step-by-step explanation

divide both side by 3 getting a+b=(28/3)

subtract b from both sides getting a=(28/3)-b

to solve for b its the same way so b=(28/3)-a

you can then substitute

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kobusy [5.1K]
<span>They are finite sums of expressions of the form where a is a constant, x is the variable and k is a non-negative integer</span>
8 0
3 years ago
A fan blade spins at a constant rate. This spinning is known as revolutions. ​The equation y=750x ​represents the number of revo
Aneli [31]

Answer:

(0,0)

(1, 750)

(2, 1500)

(3, 2250)

Step-by-step explanation:

To list the ordered pairs (x,y) we need to calculated the number of revolutions for minutes 0, 1, 2 and 3.

To calculated the number of revolutions for 0 minutes, we need to replace x by 0 in the initial equation and solve for y as:

y = 750*x

y = 750*0

y = 0

It means that our first ordered pair is (0,0), because when we replace x by 0 we get y equal to 0

At the same way, if we replace x by 1, we get:

y = 750*x

y = 750*(1)

y = 750

So, our second ordered pair is (1, 750)

Then, replacing x by 2, we get:

y = 750*x

y = 750*(2)

y = 1500

So, our third ordered pair is (2, 1500)

Finally, replacing x by 3, we get:

y = 750*x

y = 750*(3)

y = 2250

So, our last ordered pair is (3, 2250)

6 0
3 years ago
to make 5 apple pies you need about 2 pounds of apples how many pounds of apples do you need to make 20 apple pies
myrzilka [38]
About eight pounds.

You divide 20 by 5, which is four. You then multiply 4 by the amount of pounds (2).

Hope that helps
5 0
4 years ago
Solve 5x-4=5(x-3)+11
Sphinxa [80]
Expanding the right side:-

5x - 4 = 5x - 15 + 11
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left side = right side  so there are infinitely many solutions
7 0
3 years ago
2,438,783 divided 893
Naya [18.7K]

Answer:

quotient=2,731

Remainder=0

Step-by-step explanation:

893) 2,438,783 (2,731

      - 1 786

      ---------

          6527

        - 6251

        ---------

            2768

          - 2679

         -----------

                893

             -  893

             ---------

                 0

3 0
4 years ago
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