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3 years ago

Please someone help me with question number 2

Mathematics

1 answer:

Maru [420]3 years ago

3 0

Answer:

Step-by-step explanation:

Just make the number of regular gasoline sold to be x, while the number of premium gasoline sold to be (550-x).

That's all.

And goodluck.

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The solutions to a certain quadratic equation are x= -4 and X = 3. Write the equation in standard form below.

SCORPION-xisa [38]

Answer:

x² + x - 12 = 0

Step-by-step explanation:

If x = -4 and x = 3 are solutions to a quadratic equation, then

(x + 4)(x - 3) = 0

Expand the brackets: x² - 3x + 4x - 12 = 0

Combine like terms: x² + x - 12 = 0

8 0

2 years ago

Find the LCM of 30 and 22

Evgesh-ka [11]

Answer 330

Step 1 Find the Prime Factorization of 30: 30= 2*3*5

Step 2 Find the Prime Factorization of 22: 22= 2*11

Step 3 Mult. Each factor: LCM= 2*3*5*11

Step 4 Solve : 330

7 0

4 years ago

How do I solve this????

Arlecino [84]

Let's say the numbers are "a" and "b"
hmm say "a" is the smaller, and "b" the greater

so "b" is "4 more than 5 times" "a"

so... 5 times "a" is 5*a or 5a
4 more than "that", will be "that" + 4
or
5a + 4

so.. whatever "a" is, "b" is 5a+4

now, their sum is 22, as opposed to "zz" hehe

so $\bf \begin{cases}
a+b=22\\
--------------\\
\boxed{b}=5a+4\qquad thus\\
--------------\\
a+\boxed{5a+4}=22
\end{cases}$

solve for "a", to see what the smaller one is

what's "b"? well, b = 5a + 4

3 0

3 years ago

What is the absolute value of the following numbers: 5, -6, 2, -9,

Alexeev081 [22]

The absolute value of numbers is the distance it is from 0. More simply, you can just take away the negative sign (if there is one).

5 is 5 away from 0.

-6 is 6 away from 0.

2 is 2 away from 0.

-9 is 9 away from 0.

5 0

3 years ago

Read 2 more answers

PLEASE HELP For a particular transformer, the voltage E in the circuits is related to the number of windings W of wire around t

Masja [62]

Answer:

A voltage of 760V will be produced by 19 windings.

Step-by-step explanation:

Given the equation:

E = 40W

Where E is the Voltage in the circuits

and W is the number of windings

Given that E = 760V

To find: W = ?

Solution: Here, we have the given equation in 2 variables where value of 1 variable is given so other can be easily calculated by putting the value of given variable in the equation.

So, Putting the value of E in the given formula and finding W, the number of windings:

$760=40 \times W\\\Rightarrow W = \dfrac{760}{40}\\\Rightarrow W = \dfrac{76}{4}\\\Rightarrow W = 19$

So, number of windings for a voltage E = 760V is 19.

A voltage of 760V will be produced by 19 windings.

5 0

3 years ago