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kolezko [41]
4 years ago
7

Someone pls help me with this problem , in a rush !!

Mathematics
1 answer:
Hitman42 [59]4 years ago
4 0

Answer:

2.DB=7.5+7.5=15cm

3.DV=12.75+12.75=25.5

Step-by-step explanation:

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How would you subtract 9 3/10 - 5 4/10
Natali [406]
Subtract 9 from 5 which is 4.

3-4 equals -1 which means it is 9/10

Then take the 4 and make it 3 as the -1 took it away and the answer is 3 9/10
4 0
4 years ago
I need your help on this
Nikitich [7]

Answer:

13. y=2x+24

14. 1.5x+24

Step-by-step explanation:

6 0
3 years ago
9. The sum of two numbers is 25 and whose product is 156. find the two numbers.​
lord [1]

Answer:

x = 12

y = 13

Step-by-step explanation:

Let's assume the two numbers as x and y.

The sum of the two numbers is 25

So,

  • x+y = 25
  • y = 25 - x

The product of the two numbers is 156

  • xy = 156
  • x(25 - x) = 156
  • 25x - x² = 156
  • x² - 25x + 156 = 0
  • x² - 13x - 12x - 156 = 0
  • (x - 12) • (x - 13) = 0
  • x - 13 = 0
  • x = 13
  • x - 12 = 0
  • x = 12

Hence, the two numbers are 13 and 12.

4 0
3 years ago
Read 2 more answers
Can someone help me will mark brainliest!
lions [1.4K]

Answer:

C. gas prices are decreasing on the interval (2,4) and increasing on the interval (4,6)

Step-by-step explanation:

This means that between the first and fourth day of the week, gas prices drop. This is the opposite for days 5 - 7.

If this answer is correct, please make me Brainliest!

5 0
4 years ago
Write an equation to represent 'twice a number (x) is fifty"​
V125BC [204]

Hi there,

Your question is "twice a number (x) is fifty"

Recall how a number is represented by x.

Twice a number would be represented as 2x.

Therefore, to represent that twice a number is equal to 50, that would result in the expression: 2x=50

If you're looking to solve this equation, it's often best to think about the "reverse" of the current equation.

Notice how 2 is multiplying the x.

To isolate x, divide that side by 2.

However, recall that whatever is done to one side of an equation must also be done to the other side of the equation. Therefore, you will need to divide both sides by 2.

2x=50

\frac{2x}{2} = \frac{50}{2}

x=25

Equation: 2x=50

Solving for x: 25

Hope that helps!

3 0
3 years ago
Read 2 more answers
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