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3 years ago

MARKING PEOPLE AS BRAINLIEST

Mathematics

2 answers:

Tomtit [17]3 years ago

6 0

The answer is (3,4) b/c

Work :

x= 3(8-y)/4

3(8-y)/2 - 3y = -6

y= 4

x= 3

Julli [10]3 years ago

6 0

Equation 1) 8x + 6y = 48
Equation 2) 2x - 3y = -6

Multiply all of equation 2 by 2.

2) 2(2x - 3y = -6)

Simplify.

2) 4x - 6y = -12
1) 8x + 6y = 48

Add equation together.

12x = 36

Divide both sides by 12.

x = 3

Plug in 3 for x in the first equation.

8x + 6y = 48

8(3) + 6y = 48

Simplify.

24 + 6y = 48

Subtract 24 from both sides.

6y = 48 - 24

Simplify.

6y = 24

Divide both sides by 6.

y = 24/6

y = 4

So, x = 3, y = 4

~Hope I helped!~

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3 years ago

An oil drilling company is drilling a hole. The elevation of the bottom of the hole changes by feet each day. After a certain nu

marin [14]

Answer:

option.D

Step-by-step explanation:

each day it changes by $-73\frac{1}{4}$

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for 3 days : $-73\frac{1}{4}$ + $-73\frac{1}{4}$ + $-73\frac{1}{4}$

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3 years ago

Help plssss I’m trying to finish this diagnostics test

Allushta [10]

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3 years ago

A number, X, rounded to 1 decimal place is 3,7<br> Write down the error interval for x,

sp2606 [1]

Answer:

The error interval for x is:

[3.65,3.74]

Step-by-step explanation:

The number after rounding off is obtained as:

3.7

We know that any of the number below on rounding off the number to the first decimal place will result in 3.7:

3.65 3.66 3.67 3.68 3.69 3.70 3.71 3.72 3.73 3.74

( Because if we have to round off a number present in decimals to n place then if there is a number greater than or equal to 5 at n+1 place then it will result to the one higher digit at nth place on rounding off and won't change the digit if it less than 5 )

Hence, the error interval is:

[3.65,3.74]

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3 years ago

A sphere has a radius of 12 inches. A second sphere has a radius of 9 inches. What is the difference of the volumes of the spher

just olya [345]

Answer:

Solution given;

for sphere

radius [r]:12inches

another

radius [R]:9inches

Now

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volume of sphere of having radius [r-R]

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= $\frac{4}{3} π$ (12³-9³)

= 1332π cubic inches

The volume of the larger sphere is <u>___1332</u>__π cubic inches greater than the volume of the smaller sphere.

3 0

3 years ago