2 years ago

Write as an addition problem: 22 - (-8)

Mathematics

1 answer:

Nutka1998 [239]2 years ago

8 0

Step-by-step explanation:

22+8

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1/4(1/3k+9)=6 step 1- 1/3k=15 step 2- 1/3k=15 step 3- k=5 find Olgas mistake step 1 step 2 steps 3 Olga did not make a mistake

shtirl [24]

Answer:

Step 3 contains error.

Step-by-step explanation:

The given equation is :

$\dfrac{1}{4}(\dfrac{1}{3}k+9)=6$

Step 1.

Cross multiplying,

$(\dfrac{1}{3}k+9)=24$

Step 2.

Subtract 9 from both sides

$\dfrac{1}{3}k+9-9=24-9\\\\\dfrac{1}{3}k=15$

Step 3.

Cross multiplying

$k=15\times 3\\\\k=45$

So, there is an error in step 3. The correct answer should be 45.

3 0

2 years ago

14α - (2a + 9) = 3 (12a - 18)

Leona [35]

Answer:

a = 2 5/8

Step-by-step explanation:

14a - (2a + 9) = 3 (12a - 18)

14a - 2a + 9 = 36a - 54

12a + 9 = 36a - 54

12a - 36a = -54 - 9

-24a = -63

a = -63/-24

a = 21/8

a = 2 5/8

3 0

2 years ago

Graph the linear equation using intercepts. Use a graphing calculator to check your graph.

Gekata [30.6K]

Answer:

desmos .com

Step-by-step explanation:

4 0

2 years ago

Ten Times The Square Of A Non-Zero Number Is Equal To Fifty Times The Number???

I am Lyosha [343]

Hi.

The equation looks like this:

10x² = 50x

disclaimer:

I answered to provide you with an idea, more so than trying to solve it.

7 0

2 years ago

Please help me out here and let it be right

barxatty [35]

Answer:

Step-by-step explanation:

The ratio is given as $\frac{12}{9}$ = $\frac{4}{3}$ in simplest form

However, if we consider each group of 4 X's to 3 O's then the ratio is

$\frac{4}{3}$ → C

3 0

2 years ago

Read 2 more answers