3 years ago

Which is an

Mathematics

1 answer:

Andreyy893 years ago

5 0

(Answer 2,770) (estimation: 3,000)

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Could you please help me? -0.7-(-2.5)=

Reika [66]

-0.7 - (-2.5) =

-0.7 + 2.5 =

2.5 - 0.7 = 1.8

1.8 is your answer

hope this helps

3 0

3 years ago

What are three other expressions that are equivalent to 8x-12

Kisachek [45]

Answer:

2(4x-6)

4(2x-3)

8(x-3/2)

Step-by-step explanation:

find all factors of 8 other than 1, you should have 3

divide the whole equation by the factor then multiply by the factor

2(8x-12)/2 = 2(4x-6)

4(2x-3)

8(x-3/2)

3 0

3 years ago

Why does -2(x + 3y) = 18 equal y=-3-x/3? Please helppp

Citrus2011 [14]

Step-by-step explanation:

You're asking why

${- 2(x + 3y) = 18} = y = - 3 - \frac{x}{3}$

let's transpose the first equation for y

-2x-6y=18

-6y=18+2x

6y=-18-2x

y=-18/6-2x/6

y=-3-⅓x as required

8 0

3 years ago

Read 2 more answers

What is the exact volume of the cone?<br><br> H = 6 cm<br> R = 9 cm

faltersainse [42]

Answer:

508.68 or 508.7

Step-by-step explanation:

V=1/3(3.14)(9)^2(6)

(3.14)(81) x 6

(3.14)(486)

1/3(1526)

(divide by 3)= 508.68

6 0

3 years ago

Write an algebraic expression to find the number of seconds in n minutes. Evaluate the expression for n = 20

Rom4ik [11]

1200 seconds in 20 min

5 0

3 years ago