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almond37 [142]
2 years ago
9

The difference of two numbers is 15. Five times the smaller number is the same as 9 less than twice the larger number. Find the

numbers.
​
Mathematics
1 answer:
kifflom [539]2 years ago
7 0

Answer:

Step-by-step explanation:

"The difference of two numbers is 15."

x-y = 15

x>y

"Five times the smaller number is the same as 9 less than twice the larger number."

5y = 2x-9

y = x-15

substitution

5(x-15) = 2x-9

5x-75 = 2x-9

3x = 66

x = 22

y = x-15 = 7

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A rectangular fence is 27.8 meters by 34.2 meters.what is its the perimeter answer
storchak [24]

The perimeter of a rectangle is calculated as

Perimeter= 2(length + breadth )

So, Perimeter = 2*length + 2*breadth

Now we are given the length as 34.2 meters and breadth as 27.8 meters

So the perimeter will be

2(34.2+27.8) meters

(2*34.2) + (2*27.8)

which equals 2(62) meters

Hence Perimeter = 124 meters

5 0
3 years ago
Paul's mom gave him $25.00 on Monday morning to use on lunches. At his school, the school lunch costs $1.50, which he bought
Aleks04 [339]

Answer:

C. $12.60

Step-by-step explanation:

he has $25.00 for the whole week

monday through thursday, or four days, he buys school lunch for $1.50

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on friday, he buys 4 slices of pizza for $1.60 per slice

4 x 1.6 = 6.4

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6 0
2 years ago
LOOK AT PICTURE FOR PROBLEM (probably more than one answer) ‼️
podryga [215]

Answer:

A and C

Step-by-step explanation:

Two angles are Adjacent when they have a common side and a common vertex (corner point) and don't overlap.

So <7 and <9 are adjacent to <8.

[If there's any mistake, please inform me]

7 0
3 years ago
What is 75% of 162? Show your work and/or explain your reasoning.
zhannawk [14.2K]

Answer:

121.5

Step-by-step explanation:

75% =  75/100

Step 2 - Mutiply percenatge fraction by the entire (100%) quantity

75/100× 162 = 121.5

Final result

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3 0
2 years ago
Read 2 more answers
what is the volume of a cylinder with height of 9 inches and the the radius is 1 inch. round to the nearest cubic inch
poizon [28]

Answer:

Step-by-step explanation:

Volume of cylinder can be calculated by using the formula V= pir^2h

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Substituting the given values :

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Volume of cylinder rounded to nearest tenth is 28.27 cubic inches .

6 0
3 years ago
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