MATHEMATICS MIDDLE SCHOOL

How do you determine what your grade average is based on the following grades?:a. Tests---98, 92, 95

b. Homework---93, 97, 100

please type how you calculated your answer?

Answers

Answer 1

Answer:

Answer:

Test's average-95

Homework's average-96.67

Step-by-step explanation:

Average is mathematically defined as the sum of the values divided by the total number of values and is expressed as:

$\bar X=(1)/(n)\sum{x_i}, n=number \ of \ values.$

The Tests' average is calculated as:

$\bar X_t=(1)/(n)\sum{x_i}\n\n=(1)/(3)(98+92+95)\n\n=(1)/(3)* 285\n\n=95$

Hence, the Tests' average is 95

#The Homework's average is calculated as:

$\bar X_h=(1)/(n)\sum{x_i}\n\n=(1)/(3)(93+97+100)\n\n=(1)/(3)* 290\n\n=96.67$

Hence, the Homework's average is 96.67

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A small bar of gold measures 40mm by 25mm by 2mm. One cubic millimeter of gold weights about 0.0005 ounces. Find the volume in cubic millimeter and the weight in ounces of this small bar of gold?Hank has cards that are 8 inches by 4 inches. A stack of these cards fits inside the box shown and used up 32 cubic inches of volume . How tall is the stack of card? What percent of the box's volume is taken up by the cards? A typical stone on the lowest level of the great pyramid in Egypt was a rectangular prism 5 feet long by 5 feet 5 feet high by 6 feet deep and weighted 15 tons. What was the volume of the average stone? How much did one cubic foot of this stone weight?
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Sergio has p paintings in his art collection. He and other local painting collectors agreed to donate a total of 48 paintings to the local museum. Each of the 12 collectors will donate the same number of paintings. How many paintings will Sergio have in his art collection after his donation? Write your answer as an expression.

Answers

Since there are 48 paintings being donated by 12 collectors, then we can say that each collector will donate 4 paintings.

This means that Sergio will have 4 less paintings then he had before, which was represented by $p$ . Thus, our expression is now $\boxed{p - 4}$ .

The number of paintings Sergio will have in his art collection after his donation is p - 4

Given:

Number of Sergio's paintings = p

Total number of paintings to donate = 48

Number of collectors to donate (including Sergio) = 12

Number of paintings donated by each collector = Total number of paintings to donate ÷ Number of collectors to donate

= 48 ÷ 12

= 4 paintings per collector

Therefore,

Number of paintings Sergio will have in his art collection after his donation = Number of Sergio's paintings - Number of paintings donated by each collector

= p - 4

brainly.com/question/19594805

11852.014 rounded to nearest tenth

Answers

It would be 11852 because the 0 cannot be rounded since the one isn't greater than 5.

How can I solve this system of equation with substitution u+6y=32 and u+3y=17

Answers

U+6y=32 U+3y=17

Solve U+6y=32 for u

Add -6y to both sides

U+6y-6y=32-6y U= -6y+32

Substitute -6y+32 for U in U+3y=17 U+3y=17 -6y+32+3y=17

Simplify both sides of the equation -3y+32=17

Add -32 to both sides -3y+32-32=17-32 -3y=-15

Divide both sides by -3 -3y/-3 = -15/-3 Y=5

Substitute 5 for y in U=-6y+32 U= -6y+32

U= (-6)(5)+32 u= -30 +32 U= 2

Answer : U= 2 and Y=5

I hope that's help and have a great night !

u= 32 - 6y
u = 17 - 3y

Step 1
32 - 6y = 17 - 3y

Step 2
-6y + 3y = 17 - 32

Step 3
-3y = - 15

Step 4
3y = 15

Step 5
y = 15/3

Step 6
y = 5

The base of a square pyramid has a side length of 6 inches. The height of the pyramid is 12 inches. What is the volume of the pyramid? A. 108 in3 B. 36 in3 C. 72 in3 D. 144 in3

Answers

$a=6 \ in ,\ \ h= 12 \ in \n \nVolume = (1)/(3) B \cdot h \n \nB \ is \ the \ area \ of \ the \ base \nh \ is \ the \ height \n \n B =a^2 \n \nV =(1)/(3)\cdot a^2\cdot h =(1)/(3)\cdot 6^2 \cdot 12=36\cdot 4 = 144 \ in^3 \n \nAnswer : \ D. 144 in^3$

Please answer this and I’ll make you Brainly only if it’s right

Answers

Answer:

Step-by-step explanation:

Step 1: Substitute -3 for x

6(2x^2 - 5)

6(2(-3)^2 - 5)

6(2(9) - 5)

6(18 - 5)

6(13)

Answer: 78

Answer:

?=78

Step-by-step explanation:

You plug in -3 for x. -3^2 is 9. Multiply 2*9 and subtract 5 from that. Get 13. Multiply 6 and 13 to get 78

Heather has a bag with 16 red blocks, 11 blue blocks, 9 purple blocks, 15 green blocks, 8 yellow blocks, and 20 orange blocks. If she was to draw a block out of the bag, record the color and replace the block back in the bag, repeating 500 times, what would most likely be the probability of drawing an orange block (round to the nearest hundredth)? A) 0.14
B) 0.19
C) 0.20
D) 0.25

Answers

There is a total of 16+11+9+15+8+20 = 79 blocks. Since she is replacing the block each time it is drawn, the probability that she draws an orange block is always the same (10 draws or 500 draws). Since 20 of the blocks are orange, the probability would be

20/79 or

D) 0.25

Answer: D. 0.20

Explanation: I also have this question on this test and I got it right. :)

Sorry if I'm late answering this. :(

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