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3 years ago

I've only learned how to solve for a single variable. :')

Mathematics

1 answer:

MariettaO [177]3 years ago

7 0

Answer:brainliest plsssss

Step-by-step explanation:

1/2x+15=x

X+30=2x

30=2x-x

30=x

Number of girls in class

30-12=18

☆ the number of girls in his class are 18

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Which pyramid has a greater volume, and how much greater is its volume? A rectangular pyramid on the left with a base of 7 inche

olga55 [171]

Answer:

Step-by-step explanation:

The volume of the pyramid on the left is greater by 2 inches cubed.

hope this helps! :3

5 0

3 years ago

The functions f(x) and g(x) are described using the following equation and table: f(x) = −6(1.05)x x g(x) −4 −9 −2 −6 0 −3 2 2 W

NeTakaya

Answer:

The y-intercept of f(x) is equal to 2 times the y-intercept of g(x)

Step-by-step explanation:

we know that

The y-intercept is the value of the function when the value of x is equal to zero

step 1

Find the y-intercept of f(x)

we have

$f(x)=-6(1.05)^{x}$

For x=0

$f(0)=-6(1.05)^{0}$

$f(0)=-6(1)$

$f(0)=-6$

The y-intercept is the point (0,-6)

step 2

Find the y-intercept of g(x)

Observing the table

For x=0

$g(0)=-3$

The y-intercept is the point (0,-3)

step 3

Compare the y-intercepts

The y-intercept of f(x) is equal to 2 times the y-intercept of g(x)

3 0

4 years ago

Can -4/3 be simplified?

ser-zykov [4K]

No -4/3 can not be simplified

3 0

3 years ago

4. You want to sell your car.

siniylev [52]

Answer:

$7700

Step-by-step explanation:

8100 + 6900 + 7550+ 8850 + 7100 = 38500÷5= 7700

4 0

3 years ago

Addison worked 6 more hours this week than last week. In total, she worked 72 hours this week and last week. Using the equation

MArishka [77]

Answer:

h = 33 hours

Step-by-step explanation:

Given that,

Addison worked 6 more hours this week than last week. In total, she worked 72 hours this week and last week.

The equation is :

2h + 6 = 72

We need to find the number of hours

2h = 72 - 6

2h = 66

h = 33

Hence, Adison worked for 33 hours last week.

5 0

3 years ago