3 years ago

The value of x in the equation

Mathematics

1 answer:

Reika [66]3 years ago

7 0

Answer:

it is 4

Step-by-step explanation:

i know it i had that question

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A leaf blower runs on a mixture of oil and gas. The ratio is 40 to 1. How many ounces of gas does the leaf blower need for 4 oun

romanna [79]

Answer:

160

Step-by-step explanation:

you need to multiply the ounces of gas by 4 like you did to the oil.

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3 years ago

Read 2 more answers

Find the point 3x - 7x₂ =5. of the lines x, - 5x2 = 1 and of intersection

tia_tia [17]

Answer:

( $\frac{9}{4},\frac{1}{4})$

Step-by-step explanation:

We are given that two lines

$x_1-7x_2=5$ and $x_1-5x_2=1$

We have to find the intersection point of two lines

Let $3x_1-7x_2=5$ (equation 1)

$x_1-5x_2=1$ (Equation 2)

Multiply equation 2 by 3 then subtract from equation 1

$-7x_2+15x_2=5-3$

$8x_2=2$

$x_2=\frac{2}{8}=\frac{1}{4}$

Substitute $x_2=\frac{1}{4}$ in the equation 1

Then, we get

$3x_1-7\frac{1}{4}=5$

$3x_1-\frac{7}{4}=5$

$3x_1=5+\frac{7}{4}=\frac{20+7}{4}=\frac{27}{4}$

$x_1=\frac{27}{4\times 3}=\frac{9}{4}$

Hence, the intersection point of two given lines is ( $\frac{9}{4},\frac{1}{4})$

6 0

3 years ago

Does anyone know the answer to this

Alex17521 [72]

Answer: y=-x-8

Step-by-step explanation:

x-int: (-8, 0)

y-int: (0, -8)

m=(y2-y1)/(x2-x1)

m=(-8-0)/(0-(-8))

m=-8/(0+8)

m=-8/8

m=-1

y=mx+b

y=-x+b

-8=-0+b

b=-8

y=-x-8

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2 years ago

In the triangle below find X round to the nearest 10th

denis-greek [22]

According to the trigonometric relations in a right triangle, we have:

$\begin{gathered} \cos x=\frac{9}{17} \\ x=\cos^{-1}\frac{9}{17} \\ x\approx58.0\degree \end{gathered}$

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1 year ago

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MaRussiya [10]

Answer:

the correct answer is number 2 and 3 and 4 just

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3 years ago