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Sergio [31]
2 years ago
13

Please answer for instant brainliest .

Mathematics
1 answer:
Mandarinka [93]2 years ago
6 0

Answer:

Its the last one

Step-by-step explanation:

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Help Asap on both question!! will mark Brainliest!
earnstyle [38]

Answer: Answer for 27 , It dropped 38 feet, (down) so -38 feet

Answer for 28, The difference between 4 and -7 is 11

Step-by-step explanation:

25 + 13 = 38 (but it was going down so its negative)

4 + 7 = 11

3 0
3 years ago
A metal alloy is a metal made by blending 2 or more types of metal. A jeweler has supplies of two metal alloys. One alloy is 30%
ira [324]

Answer:

1 kg of 30% gold and 3 kg of 10% gold

Step-by-step explanation:

Let us take "x" kg of 30% gold, and

"y" kg of 10% gold

We need to make 4 kg of 15% gold, that would be:

4(15%) = 4 (15/100) = 4(0.15) = 0.6kg

We can now write an equation as:

30%x + 10%y = 4(0.15)

0.3x + 0.1y = 0.6 <u>(equation 1)</u>

Also, we know there will be 4 kg from "x" and "y", so we can write:

x  + y = 4

or x = 4 - y

We substitute this into equation 1 and solve for y first:

0.3x + 0.1y = 0.6

0.3(4 - y) + 0.1y = 0.6

1.2 - 0.3y + 0.1y = 0.6

0.2y = 0.6

y = 3

And x = 4 - y, x = 4 - 3 = 1

So,

1 kg of 30% gold and 3 kg of 10% gold

7 0
3 years ago
HELP DUE IN 15 MINS!
bonufazy [111]
<h3>False</h3>

<em><u>trust</u></em><em><u> me</u></em><em><u> </u></em><em><u>the </u></em><em><u>answer</u></em><em><u> is</u></em><em><u> </u></em><em><u>false</u></em><em><u> </u></em><em><u>:</u></em><em><u>)</u></em>

7 0
2 years ago
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What is the value of x in the equation 1.5(x + 4) - 3 = 4.5(x - 2)?
padilas [110]

Answer:4

Step-by-step explanation:

First distributive 1.5 to x+4 and 4.5 to x-2. You get 1.5x+6-3 = 4.5x-9. Next you need to move all the variable terms to one side. You can do either, it doesn't matter, but I subtracted 1.5 x to each side of the equation. You get left with 6-3 = 3x-9. Solve 6-3 and you get 3=3x-9. You 9 to both sides of the equation. You get 12=3x. You divide by 3 on both sides and get 4=x/x=4.

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2 years ago
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How to get the inverse of this problem
alexandr1967 [171]

Answer:

i think it is g(x)=x^3/8 -1

Step-by-step explanation:

6 0
3 years ago
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