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3 years ago

I don't remember how to solve this

Mathematics

1 answer:

EastWind [94]3 years ago

5 0

Answer:

me too i fogort eventhough i did something just like it

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Pls help me<br> I need help guys,and I’m going to give the branliest

skad [1K]

C dude now let me get that Brainly

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3 years ago

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Help me again please ‘,:)

cluponka [151]

Answer:

the third or fourth one probably

Step-by-step explanation:

4 0

3 years ago

the weight of an object on mars varies directly as the weight of the object on earth a 90 pound object on earth weighs 34 pounds

Mariulka [41]

We have been given that the weight of an object on the mars varies directly as the weight of the object on earth.

Let y be weight of an object on Mars and x be weight of an object on Earth.

$\\
y=kx$

We have been given that the weight of an object on Mars is 34 pounds and weight of the same object on Earth is 90 pounds.

Putting the given values in equation we get

$\\
34=k(90)\\
\\
k=\frac{34}{90}=\frac{17}{45}$

Therefore, our equation now becomes

$\\
y= \frac{17}{45}x$

Now we have been given that the weight of an object on Earth is 135 pounds and we have to find the weight of the same object on Mars,

We have been given that $\\
x=135$

Putting the given values in our equation we get

$\\
y= \frac{17}{45}(135)=\frac{17\cdot 135}{45}=17\cdot 3 = 51$

Therefore weight of the object on Mars will be 51 pounds.

7 0

4 years ago

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If 5 rubber stamps cost $9.70 what equation would help determine the cost of 11 rubber stamps?

aalyn [17]

C = 9.70 * 11
----------
5

8 0

3 years ago

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Given that the quadratic equation 3x^2+bx-2 has x-intercept {-2, 4}. What is the "b" value.

Luba_88 [7]

The value of b is $b=3$

Explanation:

The given quadratic equation is $y=3x^{2} +bx-2$

And has x - intercept $(-2,4)$

To determine the value of b, let us substitute the coordinates $(-2,4)$ in the given quadratic equation $y=3x^{2} +bx-2$

Substituting the x - intercept in the equation $y=3x^{2} +bx-2$ , we have,

$4=3(-2)^{2} +b(-2)-2$

Simplifying, we have,

$4=3(4)-2b-2$

$4=12-2b-2$

Adding the constant terms, we get,

$4=10-2b$

Subtracting both sides by 10, we have,

$-6=-2b$

Dividing both sides by -2, we get,

$b=3$

Hence, the value of b is $b=3$

4 0

3 years ago