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3 years ago

30 points HELPPPPPP!!!!!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

vampirchik [111]3 years ago

6 0

Answer:

Step-by-step explanation:

it's so simple

3/5 ÷ 3/10

3/1 ÷ 3/2

3 x 2 / 3

6/3

2

it means answer is second option

Mark it brainliest if it helps you ❤️

Alecsey [184]3 years ago

3 0

Answer:

Step-by-step explanation:

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Solve this equation.

cestrela7 [59]

Answer:

OB=4

Step-by-step explanation:

Step 1: Subtract 5 from both sides.

4x+5−5=21−5

4x=16

Step 2: Divide both sides by 4.

4x/4=16/4

x=4

Answer:

x=4

8 0

4 years ago

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A way to get to 19 x 9

Tcecarenko [31]

Answer:

171

Step-by-step explanation:

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3 years ago

Write and solve a word problem that can be modeled by addition of two negative integers?

andrezito [222]

John owes 15 dollars to Bill, then another 2 dollars to Joey. How much money does John have?

Since John has 0 dollars to give, he has (-15)+(-2) =-17 dollars (as 15+2=17, so the same can be applied negatively) as the first 17 dollars he gets has to be given to Bill and Joey

3 0

4 years ago

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If 8 cakes cost $62.40, how much would 3 cakes cost?

Ilya [14]

Answer:

Step-by-step explanation:

Given,

Cost price of 8 cakes = $62.40

So,

Cost price of 1 cake = $ $\frac{62.40}{8}$

Therefore,

Cost price of 3 cakes

= $( $\frac{62.40}{8}$ × 3)

[On dividing 62.40 by 8]

= $(7.80 × 3)

[On multiplying]

= $23.40

Hence,

The required cost of 3 cakes is $23.40 (Ans)

3 0

3 years ago

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The product of a number and -7 gives seven times the sum of that number and -40. Find the number

Ymorist [56]

Let the unknown number be x.

x × -7 = 7 (x + -40)

-7x = 7x - 280

-14x = -280

x = 280/14

x = 20

Hope this helps!

4 0

3 years ago