All categories

3 years ago

(25+3) - 7 x 3 + (2x4)

Mathematics

1 answer:

arlik [135]3 years ago

4 0

Answer:

It is not correct, the answer is 15

Step-by-step explanation:

They forgot the rule of PEMDAS, and accidentally subtracted before they multiplied. It should've gone

(25+3) - 7 x 3 + (2x4)

28-7x3+8

28-21+8

Since it's minus 21, that means it's negative, so -21+8=13

28-13=15

You might be interested in

A pizza shop delivered 17 pepperoni pizzas to a college on the first night of final exams. The total cost of the pizzas was &amp

Allushta [10]

Answer:

Step-by-step explanation:

Let x = number of small pizzas

Let y = number of medium pizzas

Let z = number of large pizzas

Total weight of pizza = 9 *16 +8 = 152

Total pizza = 17

Total amount = $153

x + y + z = 17 - equation 1

4x + 6y + 15z = 153 - equation 2

3x + 9y + 14z = 152 - equation 3

from equation 1, x = 17 -y -z - equation *

substitute in both 2 and 3

4(17 -y -z) + 6y + 15z = 153 ---- 1

3(17 -y -z) +9y +14z = 152 --- 2

68 - 4y - 4z +6y + 15z = 153 ----i

51 - 3y - 3z + 9y + 14z = 152 ---ii

2y + 11z = 85 ---1

6y +11z = 101 ----2

equation 2 minus equation 1

4y = 16 => y = 4

substitute y in equation 1

8 + 11z = 85 => 11z = 77 => z = 7

subtitute y as 4 and z as 7 in equation *

x = 17 - 4 -7 => x = 6

So, 6 small pizzas, 4 medium and 7 big pizzas were delivered

8 0

4 years ago

+ C:/Users/pertunia/Desktop/IQTT5111A1_FT.pdf 2022 21; 22 Q.3.1 Determine the % marks that the students obtained for each of the

almond37 [142]

The question is an illustration of Excel formulas, and the formula to enter in cell C2 is: =(B2/600)

<h3>How to determine the % marks that the students obtained?</h3>

To enter a formula in Microsoft Office Excel, we make use of the following syntax:

= (Formula)

From the question, the total score is 600.

So, the formula to enter in cell C2 is:

=(B2/600)

Next, drag the content of cell B2 through cell C12.

This is to ensure that all cells C2 to C12 have the appropriate formula.

Lastly, following the highlighted steps to show the result as percentage

Go to the home tab
Select the number group
Click the Percent Style button
Increase the number of decimal places, as desired.

Read more about Excel formulas at:

brainly.com/question/14299634

#SPJ1

7 0

2 years ago

The ratio of votes for Caleb to votes for Tyler in an election is 18:1. There were a total of 1995 votes. How many people voted

Sergeeva-Olga [200]

Tyler got 1/(18 +1) = 1/19 of the 1995 votes, so 1995/19 = 105 votes.

8 0

3 years ago

A 30-ounce jar of peanut butter costs $6.00. A 40-ounce jar costs $7.20. Which jar of peanut

kobusy [5.1K]

Answer:

The 40-ounce jar of peanut butter is cheaper per ounce.

Step-by-step explanation:

30-ounce jar:

6÷30=0.2

40-ounce jar:

7.2÷40=0.18

4 0

3 years ago

*20 points*

ioda

So hmm notice the picture below

simply get the area of the segment, and subtract it from the area of the circle, what's left, is the difference

notice your circle, has a radius "r" of 18

5 0

3 years ago

Read 2 more answers