All categories

3 years ago

Can u help??????????????????????????????????????//

Mathematics

2 answers:

maw [93]3 years ago

5 0

Answer:

Okay!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

The answer is 14

Step-by-step explanation:

Folow order of operations and when doing multipactiona or subtraction or division and addition, make sure to go from left to right

Lady bird [3.3K]3 years ago

3 0

Answer:

Step-by-step explanation:

Start with the multiplication. It should now look like this: $20 - 15 + 81$ ÷ $9$
Do the division: 81 ÷ 9 = 9
Plug 9 in: $20 - 15 + 9$
Solve left to right in steps 5 and 6 below
20 - 15 = 5
5 + 9 = 14
So, the answer is 14

I hope this helps!

You might be interested in

Which term below correctly completes the following sentence?

Norma-Jean [14]

Answer:

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

A student solved 3/x−4=x/7 in six steps, as shown.

Stolb23 [73]

Answer:

Option A.

Step-by-step explanation:

The given equation is

$\dfrac{3}{x-4}=\dfrac{x}{7}$

Step 1: Multiply both sides by (x-4).

$3=\dfrac{x(x-4)}{7}$

Step 2: Multiply both sides by 7.

$21=x(x-4)$

Step 3: Using distributive property.

$21=x^2-4x$

Step 4: Isolate all terms on one side.

$0=x^2-4x-21$

Step 5: Find factors by splitting the middle term.

$0=x^2-7x+3x-21$

$0=x(x-7)+3(x-7)$

$0=(x-7)(x+3)$

Step 6: Using zero product property, we get

$x=-3, x=7$

It means student solved the equation correctly.

Therefore, the correct option is A.

5 0

3 years ago

Read 2 more answers

Triangle PQR is a right triangle. If PQ = 8 , what is RQ?

slavikrds [6]

The answer to this is B

8 0

3 years ago

Read 2 more answers

Judy will use 2 1/2 cups of flour for each cake she bakes judy has 10 cups of flour what is the maximum number of cakes judy can

Mariulka [41]

Answer:

Step-by-step explanation:

because 2 1/2 times 4=10

7 0

2 years ago

Khan Academy

malfutka [58]

Answer:

The variable d stands for how many calories she used.

Step-by-step explanation:

the problem says that she uses 1 calorie per minute while walking, and then it says that she walked 12 minutes. 12×1= 12 calories

d=12 calories which equals to the 12 minutes she walked

7 0

3 years ago