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Inessa05 [86]
3 years ago
6

One number exceeds another by 20 . The sum of the numbers is 78. What are the numbers

Mathematics
1 answer:
castortr0y [4]3 years ago
4 0

Answer: 2 numbers are 19 and 39

Step-by-step explanation:

<em>y = x + 20</em>

Equation: x + y  + 20 = 78

⇔ x + y = 78 - 20

⇔ x + y = 58

⇔ y = 58 - x

So, we have:

x + 20 = 58 - x ( = y)

⇔ x + x = 58 - 20

⇔ 2x = 38

⇔ x = 19

⇒ y = x + 20 = 19 + 20 = 39

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3 years ago
3) What is the shape of the graph of the equation y = 5x – 2?​
german

Answer:

  • Line

Step-by-step explanation:

The equation y = 5x - 2 is slope-intercept form of linear function.

  • The shape of the graph is the line

It has positive slope of 5, therefore is increasing function, the line goes up from left to right on the coordinate plane

6 0
3 years ago
At a bake sale, Tia and Jaden earned $147 from the cookies they had sold. Then they paid Tia’s mother back $18 for materials to
nadya68 [22]

Answer: The total profit is $129

Step-by-step explanation:

The total revenue, was $147 (the total they earned), and the cost of the materials is $18 (how much they returned for the materials)

The total profit is computed as the difference between the revenue and the costs, then the total profit of the kids in this case is:

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3 0
3 years ago
Estimate the difference of the decimals below by rounding to the nearest
Olin [163]

Answer:

50

Step-by-step explanation:

53.042 -3.350 = 49.692---> 50

8 0
2 years ago
Read 2 more answers
While shopping for a dress, mrs vargas found one that was in sale for 35% off. the original price was $40. how much will she sav
timurjin [86]
Answer: $14

Steps:
What if 35% of $40
35% of 40
35% * 40
0.35 * 40 = $14

She will save $14

Tips:
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-To change a percent to a decimal move the decimal 2 places to the left.

If this was helpful and correct I would appreciate the brainliest! :)
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