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3 years ago

I cant solve this i need help

Mathematics

1 answer:

tangare [24]3 years ago

6 0

Hey!

Here is the equation:

$\frac{j}{3} = 4.5$

Switch the equation around and it becomes:

$4.5 \times 3 = j$

The sign changes when moved to the other sign. At first it was (÷) and now it's (×).

Multiply 4.5 by 3 to find j

$4.5 \times 3 = 13.5$

<em>That means your answer is 13.5</em>

$\framebox{j = 13.5}$

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John had to pay a combined electric and gas bill $150. The electric portion of the bill was $90. What is the ratio of money spen

tatuchka [14]

Given:

John had to pay a combined electric and gas bill $150.

The electric portion of the bill was $90.

To find:

The ratio of money spent on electric to that on gas.

Solution:

Let x be the amount of gas bill.

The electric portion of the bill was $90 and John had to pay a combined electric and gas bill $150. So,

$90+x=150$

$x=150-90$

$x=60$

The gas portion of the bill was $60.

The ratio of money spent on electric to that on gas is:

$\text{Required Ratio}=\dfrac{\text{Electric bill}}{\text{Gas bill}}$

$\text{Required Ratio}=\dfrac{90}{60}$

$\text{Required Ratio}=\dfrac{3}{2}$

$\text{Required Ratio}=3:2$

Therefore, the ratio of money spent on electric to that on gas is 3:2.

7 0

3 years ago

On a coordinate plane, a line goes through (negative 3, negative 3) and (negative 1, 5).

slega [8]

Answer:

y=20

x=4

Step-by-step explanation:

Since you can plug the first 2 coordinates into the slope equation ( $\frac{y_{2}-y_{1}}{x_{2} -x_{1} }$ ) you will get 4 for the slope so for the equation for the parallel line you would get y=4x+4 and since the x=4 you could plug that in and you would get y=20 and x=4