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Cerrena [4.2K]
3 years ago
9

Write the equation 0.3x^2+5x-7=0 in standard form and then choose the value of “b”

Mathematics
1 answer:
kotegsom [21]3 years ago
6 0

Answer:

b = 5

Step-by-step explanation:

The given equation is :

0.3x^2+5x-7=0 .......(1)

It is in the form of quadratic equation. The general form of a quadratic equation is as follows :

ax^2+bx+c=0 .....(2)

Comparing equations (1) and (2), we get :

a = 0.3, b = 5 and c = -7

Hence, the value of b is equal to 5.

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4 0
3 years ago
Please help
Varvara68 [4.7K]

Answer:

$6 = cost of small box

$8 = cost of large box

Step-by-step explanation:

Let s = cost of small box

     l  = cost of large box

(1)    12s + 3l = 96            (2)     6s + 6l = 84

    Multiply by -2                    <u> -24s - 6l = -192</u>

                                                -18s   = - 108

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         72 + 3l = 96

                 3l = 24

                   l = $8 = cost of large box

7 0
3 years ago
You need to buy some pencils and an eraser. You can spend no more than $5. The eraser cost $1 and the pencil cost $0.25 each. Wr
vekshin1
5≤1e+ .25p 
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6 0
3 years ago
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rodikova [14]

Answer:

1 makes this problem true

Step-by-step explanation:

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3 years ago
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Lunna [17]

Answer: 4 games

Step-by-step explanation:

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= 3 :  2

To take it to 5 : 2, we would have to take up the left side of the ratio by 2.

Because we simplified by using a factor of 2, we have to multiply the 2 we just calculated by the factor to find the number of games needed to be won:

= 2 * 2

= 4 games

4 0
3 years ago
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