-3x - 3/4 = 9 helpppppppp

1 answer:

6 0

-3x - 3/4 = 9
-3x - 3/4 + 3/4 = 9 + 3/4
-3x = 9 3/4
I change 9 3/4 to improper fraction
-3x = 39/4
-3x / -3 = 39/4 / -3
X = 39/4 x -1/3 (change division to multiplication so that you can complete the problem)
X = -39/12
You can convert that if you want to -3 3/12
So x = -3 3/12
Simplify to x = -3 1/4

You might be interested in

7th grade math help me pleasee

emmasim [6.3K]

Answer:

5a. 30

5b. 32

5c. 60

u have to cross multiply on all of them

Step-by-step explanation:

7 0

3 years ago

Explain step by step I see on getting about 41 but theres nothing that equals that

grandymaker [24]

$\text{Area \ of \ sector} = \frac{\theta}{2}*r^2 \ \ \ [\theta= \text{central angle in radians, r=radius} ] \\ \\ A= \cfrac{\frac{5 \pi }{3}}{2}*8^2= \cfrac{5 \pi }{3*2}*64= \cfrac{5 \pi }{3}*32=\cfrac{160 \pi }{3} \ \ \ \text{units}^2$

4 0

3 years ago

The basketball team sell t-shirts and hats as a fundraiser. they sold a total of 23 items and made a profit of $246. they made a

hjlf

S - the number of the t-shirts;
h - the number of hats:
The system of equations:
s + h = 23
10 s + 12 h = 246
--------------------------
s = 23 - h
10 * ( 23 - h ) + 12 h = 246
230 - 10 h + 12 h = 246
2 h = 246 - 230
2 h = 16
h = 16 : 2
h = 8
s = 23 - 8
s = 15
Answer: The basketball team sold 15 t-shirts and 8 hats.

7 0

4 years ago

4. In the diagram, ABCD is a straight line. Calculate the values of x and y.

kykrilka [37]

Answer:

x is 108° and y is 144°

Step-by-step explanation:

for x:

$x + 36 \degree + 36 \degree = 180 \degree \\ \{isoceles \: triangle \: angle \: sum \} \\ x + 72 \degree = 180 \degree \\ x = 180 \degree - 72 \degree \\ x = 108 \degree$

for y:

$y + 36 \degree = 180 \degree \\ \{straight \: line \: angles \} \\ y = 180\degree - 36\degree \\ y = 144\degree$

8 0

3 years ago

Read 2 more answers

Help me if anyone responds in first 10 minutes they get 20 points

zalisa [80]

$sa = 2(wl + hl + hw) \\ sa = 82$

7 0

3 years ago