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2 years ago

14

Anna solves the expression 6(5+3) and gets the result 48. Jojo solves the same expression and gets the result 33. Who is correct

?

1 answer:

Anton [14]2 years ago

4 0

Answer:

Anna is correct.

Step-by-step explanation:

Using PEMDAS, you need to add the terms in the parentheses first.

After adding, you get 8×6 = 48

Jojo made the mistake of multiplying 6 and 5 first, and then adding 3.

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What is the difference between an estimator and an estimate?

natka813 [3]

Yes................................................

4 0

3 years ago

PLEASE, IT IS URGENT!!!!!!!!!!!!!!!!

sasho [114]

Convert the timing into hours only:
11:15 = 11.25h
9:45 = 9.75h
11:45 = 11.75h
7:45 = 7.75h
10:45 = 10.75h

To find the average, we need to find the middle of these timing:
11.25 + 9.75 + 11.75 + 7.75 + 10.75 = 51.25

51.25 ÷ 5 = 10.25h = 10:15 am

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Answer: The average time it docks is 10:15 am.
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5 0

3 years ago

Given matrix A below, and that A = B, find the value of the elements in B. A = 9 −2 3 2 17 0 3 22 8 b11 = b12 = b13 = b21 = b22

GuDViN [60]

Answer:

$b_{11}=9,b_{12}=-2,b_{13}=3,b_{21}=2,b_{22}=17,b_{23}=0,b_{31}=3,b_{32}=22,b_{33}=8$

Step-by-step explanation:

Consider the given matrix

$A=\left[\begin{array}{ccc}9&-2&3\\2&17&0\\3&22&8\end{array}\right]$

Let matrix B is

$B=\left[\begin{array}{ccc}b_{11}&b_{12}&b_{13}\\b_{21}&b_{22}&b_{23}\\b_{31}&b_{32}&b_{33}\end{array}\right]$

It is given that

$A=B$

$\left[\begin{array}{ccc}9&-2&3\\2&17&0\\3&22&8\end{array}\right]=\left[\begin{array}{ccc}b_{11}&b_{12}&b_{13}\\b_{21}&b_{22}&b_{23}\\b_{31}&b_{32}&b_{33}\end{array}\right]$

On comparing corresponding elements of both matrices, we get

$b_{11}=9,b_{12}=-2,b_{13}=3$

$b_{21}=2,b_{22}=17,b_{23}=0$

$b_{31}=3,b_{32}=22,b_{33}=8$

Therefore, the required values are $b_{11}=9,b_{12}=-2,b_{13}=3,b_{21}=2,b_{22}=17,b_{23}=0,b_{31}=3,b_{32}=22,b_{33}=8$ .

3 0

3 years ago

Read 2 more answers

Valeria has been training for the Charlestown cruisers bike race. The first week she trained, she rode 5 days and took the same

ira [324]

The number of miles covered every evening obtujwd using a <em>system of equation</em> is 15 miles.

<u>Let the number of miles per evening</u> = m

Number of days = 5

Number of miles per morning = 8 miles

Total miles covered = 115 miles

<u>Using the expression below :</u>

<em>Number of days(miles per morning + miles per evening) = 115 miles </em>

5(8 + m) = 115

40 + 5m = 115

5m = 115 - 40

5m = 75

m = 75 / 5

m = 15 miles

Therefore, the Number of miles covered per evening is 15 miles.

Learn more : brainly.com/question/18796573

8 0

3 years ago

On Sunday, Dan collected 6.8 pounds of aluminum for recycling. On Monday he collected another 8.75 pounds. What is the total num

sweet-ann [11.9K]

Lets look at the information we have:-

6.8 pounds on Sunday
8.75 pounds on Monday
How many pounds did he collect together on these 2 days?

Add:-

6.8 + 8.75 = 15.55
Dan collected 15.55 pounds of aluminum on these 2 days.

CHECK OUR WORK:-

15.55 - 8.75 = 6.8
We were RIGHT!!

So, Dan collected 15.55 pounds of aluminum on these 2 days.

Hope I helped ya!! xD

6 0

4 years ago