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Genrish500 [490]
2 years ago
6

Two consecutive integers are such that 3 times the larger exceeds twice the smaller by 34. find the integers.

Mathematics
2 answers:
julsineya [31]2 years ago
7 0

x - a smaller number

(x+1) - a larger number

3(x+1) - 2x = 34

3x + 3 - 2x = 34

x= 31

(x+1) = 32

rodikova [14]2 years ago
5 0

Answer: larger = 32 and smaller = 31

Step-by-step explanation:

let's call the smaller x. The larger must be x+1, because they are consecutives.

3 times the larger exceeds twice the smaller by 34, so:

3(x+1) = 2x+34

3x+3=2x+34

3x-2x=34-3

x=31

x+1 = 32

Checking:

3.32 = 92

3.31+34 = 96 ok

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Anestetic [448]

Answer:

They need to make 5 pies for 15 people.

Step-by-step explanation:

15*3=45 slices of pie in total,

each pie is cut into 9 slices,

45/9=5 pies

5 0
2 years ago
A rectangular pool 18 meters by 12 meters is surrounded by a walkway of width x
vesna_86 [32]

Answer:

x=3 meters

Step-by-step explanation:

step 1

Find the area of the rectangular pool

A=LW

we have

L=18\ m\\W=12\ m

substitute

A=18(12)=216\ m^2

step 2

Find the area of rectangular pool including the area of the walkway

Let

x ----> the width of the walkway

we have

L=(18+2x)\ m\\W=(12+2x)\ m

substitute

A=(18+2x)(12+2x)

step 3

Find the area of the walkway

To find out the area of the walkway subtract the area of the pool from the area of rectangular pool including the area of the walkway

so

A=(18+2x)(12+2x)-216

step 4

Find the value of x if the area of the walkway equal the area of the pool

so

(18+2x)(12+2x)-216=216

Solve for x

(18+2x)(12+2x)=432\\216+36x+24x+4x^{2}=432\\4x^{2} +60x-216=0

Solve the quadratic equation by graphing

The solution is x=3 meters

see the attached figure

8 0
2 years ago
What is the common ratio between successive terms in the sequence 1.5, 1.2, 0.96, 0.768
Pani-rosa [81]

Answer:

To determine the common ratio of a geometric sequence. You just need to divide any two consecutive terms on it. You can see below that all of them have the same quotient.

1.2 / 1.5 = 0.8

0.96 / 1.2 = 0.8

0.768 / 0.96 = 0.8

.

Decimal form = 0.8

Fraction form = 4/5

.

Check:

1.5 x 0.8 = 1.2

1.5 x 4/5 = 6/5 = 1 1/5 = 1.2

Therefore, the common ratio between successive terms in the sequence? 1.5, 1.2, 0.96, 0.768 is 0.8 or 4/5.

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2 years ago
If the sales tax is 7% on all purchases, how much must you set aside for sales tax on $300? Show your work.
GenaCL600 [577]

Answer:

$321

Step-by-step explanation:

Because if you use a calculator u put in 300 + 7% you get 321

4 0
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the water level in an ocean bay changes at a average rate of three meters per hour at this rate how many hours would it take for
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We know the rate of the change, 3 meters per hour. And we want to know how long it will take to reach 12 meters. Say we need to reach 6 meters instead 12.

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2 years ago
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