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3 years ago

How do I solve this?

Mathematics

1 answer:

Elena L [17]3 years ago

3 0

Lets x = number of books read in that month

2x + 40 = 3x +35
3x - 2x = 40 -35
x = 5

answer is H. 5

You got it right

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My Christmas present to you

Svet_ta [14]

Answer:

Step-by-step explanation:

if you need help let me know

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2 years ago

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iren2701 [21]

Taking over his thoughts is the answer

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2 years ago

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In triangle ABC, AB = 11 cm, BC = 9 cm and CA = 10 cm. Find the area of triangle ABC.

max2010maxim [7]

Answer:

Area = 42.43 square cm

Step-by-step explanation:

Using Heron's Formula :

$Area = \sqrt{s\times (s-a) \times (s-b) \times(s -c)} \ , \ where \ s \ =\ \frac{a+ b+ c}{2}$

Find Area :

$s = \frac{11 + 9 + 10 }{2} = \frac{30}{2} = 15$

$Area = \sqrt{15 \times ( 15 - 11 ) \times { (15 - 9 ) \times ( 15 -10)}\\\\$

$= \sqrt{15 \times 4 \times 6 \times 5}\\\\=\sqrt{1800}$

$= 42 . 43 \ cm^2$

7 0

3 years ago

How do you compare two ratios

serious [3.7K]

Answer:

how you can divide them I believe

Step-by-step explanation:

you need to divided both of them to see a difference

7 0

3 years ago

Help me please it just hard for a newbie like me

Makovka662 [10]

Hello there,
Part 1:
Perimeter of Red = 11+11+11+11
= 44
Perimeter of Blue= 6+6+6+6
= 24
Ratio: Red : Blue
44 : 24(divide by 4)
11 : 6
Part 2:
Area of Red= 11 x 11
= 121
Area of Blue= 6 x 6
= 36
Ratio: Red : Blue
121: 36

Hope this helps :))

~Top

8 0

3 years ago