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3 years ago

HELP ME PLEASE!!!!!!

1 answer:

4 0

Let a be aluminum and g be gold and k how many times:

2*10⁻¹mg a+ 6*10¹mg g= 154 lb

so a=kg

k=a/g

k=2*10⁻¹/6*10=1/300

a=1/300g

so Aluminum is 1/300 of gold.

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What is the equation of the line with an x-intercept of -1 and a y-intercept of 2?

iragen [17]

Answer:

y = 2x + 2

Step-by-step explanation:

The general form

is;

y = mx + b

where m is the slope and b is the y-intercept

so we have;

y = mx + 2

To get m, substitute the point (-1,0)

So we have

0 = -m + 2

m = 2

So the equation is;

y = 2x + 2

4 0

3 years ago

Given vector v = <1,4>, find —2v.

USPshnik [31]

Answer:

(-2 , -8)

Step-by-step explanation:

-2v = (-2 , -8)

------

6 0

3 years ago

Which value of d is a solution to equation 2.2d + 5.4= 12

ryzh [129]

Hello!

Answer:

d=3

*The answer must have a positive sign.*

Step-by-step explanation:

Distributive property: a(b+c)=ab+ac

First, you multiply by 10 from both sides of an equation.

$2.2d*10+5.4*10=12*10$

Then, you had to refine the problem down.

$22d+54=120$

Next, you subtract by 54 from both sides of an equation.

$22d+54-54=120-54$

Simplify.

$22d=66$

You can also divide by 22 from both sides of an equation.

$\frac{22d}{22}=\frac{66}{22}$

And finally, simplify and solve. You can also divide by the numbers.

$66/22=3$

Final answer: → $d=3$

Hope this helps!

Thanks!

-Charlie

Have a great day!

7 0

4 years ago

Read 2 more answers

HELP- 11 points!

kvv77 [185]

(x)+(x+1)+(x+2)=-36
3x+3=-36
3x=-39
x=-13
The numbers are -13, -12, -11

5 0

3 years ago

Jalen plots two integers on a horizontal number line. The leftmost integer is negative. Which must be true of the second integer

BARSIC [14]

The second integer is greater than the first integer

6 0

4 years ago

Read 2 more answers