MATHEMATICS MIDDLE SCHOOL

Can you help me with my homework please

Answers

Answer 1

Answer:

#4(a)

row-seat: 3- 13, 4-15, 5-17, 6-19, 7-21

(b)

the equation works for row 1 but not for any of the rows after this

Ex: Row 2, S=7(2)+2, this would equal 14 but there isn't 14 seats in row #2

(c)

S=2(1)+7, there is 9 seats in row 1

2(2)+7=11, there is 11 seats in row 2

2(3)+7= 13, there is 13 seats in row 3

(d)

2(15)+7=37

2*15=30, 30+7=37

(e)

91=2(r)+7

91-7=2(r)+7-7

84=2(r)

84/2=2(r)/2

42=r, the row with 91 seats is row 42

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Explain the method of place value principle of converting a fraction to decimal with 5 examples for class 7

Answers

Example #1 : 0.7
7 is in the tenths place. This number is read as "seven tenths".
0.7 is converted from 7/10.

Example #2 : 0.13
1 is in the tenths place.
3 is in the hundredths place.
This number is read as "thirteen hundredths"
0.13 is converted from 13/100.

Example #3: 0.157

1 is in the tenths place.
5 is in the hundredths place.
7 is in the thousandths place.
This number is read as "one hundred fifty seven thousandths"
0.157 is converted from 157/1000.

Example # 4: 1.5

1 is in the ones place
5 is in the tenths place.
This number is read as "one and five tenths"
1.5 is converted from 15/10 or 1 5/10.

Example # 5: 25.67
2 is in tens place.
5 is in ones place.
6 is in tenths place
7 is in hundredths place.
This number is read as "twenty-five and sixty seven hundredths"
25.67 is converted from 25 67/100 or 2567/100

Scott needs to fill a 3-gallon pitcher with water, but it won't fit under the faucet. He fills a 1-quart container with water from the faucet and then pours the water into the pitcher. How many times will he need to fill the 1-quart container to fill the pitcher?How would you solve this?

Answers

12 times.
4 quart=1 gallon
3(4)=3(1)
12 quart=3 gallon

Answer:

12 because 1 gallon = 4 quarts 4x3=12

Line L is perpendicular to chord AB which statement is true

Answers

Answer:

$\bar {AQ} =\bar {QB}$

Step-by-step explanation:

Since line L passes through the center of the circle and it is perpendicular to chord AB, it bisects chord AB.

This means that L is the locus of points equidistant from A and B.

This also means that Q is the midpoint of AB.

Hence the correct answer is $\bar {AQ} =\bar {QB}$

4/9x + 1/5x=58 i need help solving this equation

Answers

So first let’s combine like terms and add 4/9x and 1/5x together to get 29/45x =58. Next, multiply 58 by 45/29 to isolate x, so x=90

The ratio of boys to girls in three art classes at Chester Middle School is the same.Art Class: Boys: Girls:
_______________________
Draw: 8 12
Paint: 12 18
Sculpt: ? 9