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2 years ago

NCERT SOLUTIONS FOR CLASS 7 MATHS ALL CHAPTERS

Mathematics

1 answer:

Galina-37 [17]2 years ago

5 0

Answer:

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

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Kryger [21]

Answer:

1) distance travelled = 75mi

time taken = 3 hrs.

speed = distance/time

= 75/3 = 25 mi/hr.

now, if time = 1.6 hrs.

Distance = speed x time

= 25 x 1.6 = 40.0 mi

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2) earning for 8 hrs. of work = $120.

therefore, rate of earning per hr. = 120/8 = $15/hr.

so, earning in 11 hrs. = 15 x 11 = $165

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2 years ago

The vertices of PQRS have coordinates P(–1,5) , Q(3,4) , R(2,−4) , and S(−3,−2) .

aleksandrvk [35]

Answer:

P(5,1), Q(4,-3), R(-4,-2), S(-2,3)

Let me know if it’s correct !!

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2 years ago

A bakery sells 5 apple muffins for every 2 bran muffins sold. which table shows this ratio?

shepuryov [24]

The answer to this question is the graph B

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3 years ago

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Please help me expand theses and then help me factorise these brackets

melisa1 [442]

Answer:

-9xy+16x

Step-by-step explanation:

x(y-2) +3x(6-y) -7xy

Distribute

xy -2x +18x-3xy -7xy

Combine like terms

-9xy+16x

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2 years ago

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Someone please help me!

Vlad1618 [11]

Answer:

A. $x \leq -16$

B. b > 11

C. $c \leq -13$

D. $x \geq -9$

Step-by-step explanation:

<u>Given the following algebraic expression;</u>

A. $\frac {3x}{4} \leq 12$

We would simplify the equation by multiplying all through by 4;

$4 * \frac {-3x}{4} \leq 12 * 4$

$-3x \leq 48$

Divide both sides by -3;

$x \leq -16$

B. 5b - 28 > 27

Rearranging the equation, we have;

5b > 27 + 28

5b > 55

Divide both sides by 5

b > 11

C. $13c \leq -169$

Divide both sides by 13

$c \leq -13$

D. $3x - 7 \geq 4x + 2$

Collecting like terms, we have;

$3x - 4x \geq 2 + 7$

$-x \geq 9$

Divide both sides by -1

$x \geq -9$

8 0

2 years ago

NCERT SOLUTIONS FOR CLASS 7 MATHS ALL CHAPTERS​

NCERT SOLUTIONS FOR CLASS 7 MATHS ALL CHAPTERS