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3 years ago

-.25 x+1.3=-.55x-.2 find x

Mathematics

1 answer:

Mamont248 [21]3 years ago

3 0

You need to isolate the variable my dividing each side by factors that don’t contain the variable
x=-5

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Is 4/16 equivalent to 0.25

pentagon [3]

Yes it is
you can solve it dividing 4 ÷ 16 and you have 0.25

4 0

3 years ago

Each month Allison gets a $15 allowance and earns $100 working at the theater. She uses the expression 15x+100y to keep track of

Marizza181 [45]

Step-by-step explanation:

The expression for he earning of Allison and her allowance is as follows :

15x+100y

Part A

Variables are x and y. Coefficients are 15 and 100.

Part (B)

There are two terms in this expression. + is used to separate the terms. 15x and 100y are the terms.

Part (C) As $15 shows her earning from allowances. Hence, 15x shows allowance.

3 0

4 years ago

If one container holds 1 an 7/8 quarts of water and a second container holds 5 3/4 quarts of water.How many more quarts of water

iren [92.7K]

It holds 3.875 because 1 7/8 minus 5 3/4 is 3.875, or 3 7/8

7 0

3 years ago

What is the discriminant of 3x2 + 6x = 2?

Softa [21]

Answer:

Discriminant is 60

Step-by-step explanation:

the discriminant of $3x^2 + 6x = 2$

To find discriminant , first we write the equation in the form of

$ax^2+bx+c=0$

$3x^2 + 6x = 2$

Subtract 2 on both sides

$3x^2 + 6x-2=0$

a=3, b=6, c=-2

Formula for discriminant is $b^2-4ac$

Plug in the values

$b^2-4ac=(6)^2-4(3)(-2)=60$

Discriminant is 60

5 0

3 years ago

If f(x) = -3x - 2 find f(-7)

Sladkaya [172]

Answer:

Step-by-step explanation:

this question means you have to place the value of -7 were there's x in the function.

f(-7)=-3(-7)-2

=21-2

=19

I hope this helps

6 0

3 years ago

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