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xenn [34]
3 years ago
5

NCERT SOLUTIONS FOR CLASS 7 MATHS ALL CHAPTERS​

Mathematics
1 answer:
Galina-37 [17]3 years ago
5 0

Answer:

https://www.learncbse.in/ncert-solutions-for-class-7-maths/

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Erica Knits 18 Squares On Monday .She Knits 7 More Squares Each Day Form Tuesday Through Thursday. How Many Squares Does Erica K
Lubov Fominskaja [6]
Erica knits 39 on friday just add 21 and 18 then u get 39 hope i helped
4 0
3 years ago
Can someone help me out with this ??
nalin [4]

Answer:

1. b > -2

2. x <= 3

Step-by-step explanation:

Question 1:

-2(b + 5) < -6

Divide both sides by -2. Remember to change the inequality sign.

b + 5 > 3

Subtract 5 from both sides.

b > -2

Question 2:

-(x - 10) >= 7

Divide both sides by -1. Remember to change the inequality sign.

x - 10 <= -7

Add 10 to both sides.

x <= 3

6 0
3 years ago
The base of the pyramid is a square what is the surface area if the pyramids height is 4 feet in the area of the base is 36 ft.?
KATRIN_1 [288]

Answer:

96 ft²

Step-by-step explanation:

The general formula for the surface area of a pyramid is:  

SA = \frac{1}{2}pl + B, were p = the perimeter of the base, l = the slant height and B = the area of the base

Since the area of the base is 36 ft², then each side is √36, or 6 ft. The perimeter is the sum of all the sides, so 6 x 4 = 24 ft.

Given the overall height of the pyramid is 4 feet, you can use the Pythagorean Theorem (a² + b² = c²) to find the slant height (hypotenuse) of the pyramid.  Using 3 feet for 'a' and 4 feet for 'b':

3² + 4² = c² or 9 + 16 = 25

25 = c² or c = 5

SA =  \frac{1}{2}(24)(5) + 36

SA = 60 + 36 = 96 ft²

8 0
3 years ago
Determine the difference between the monthly payments on a $120,000 home at 6.5% and at 8% for 15 years
slega [8]

Answer:

I believe the answer is 1800

Step-by-step explanation:

120000 * 0.065 = 7800

120000 * 0.08 = 9600

9600 - 7800 = 1800

3 0
3 years ago
5th grade math. correct answer will be marked brainliest
Lelechka [254]

Answer:

3

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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