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3 years ago

A set of 3 consecutive integers has a sum of 15. Which integers are they?

Mathematics

2 answers:

ludmilkaskok [199]3 years ago

5 0

The answer is 4+5+6=15.Hope that helps. :)

Elodia [21]3 years ago

3 0

Answer:

Step-by-step explanation:

Let the first number be x,

The second number (since it is consecutive) will be = x + 1

The third number (since it is right after the second) = (x+1) + 1 = x + 2

x + x + 1 + x + 2 = 15

3x + 3 = 15

3x = 15 - 3

3x = 12

x = 12/3 = 4

If the first number = 4,

Second number will be = 5 [(x+1) = 4+1]

Third number will be = 6 [(x+2) = 4 + 2]

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10. The bill (including parts and labor) for the repair of an oven was $142. The cost

Lubov Fominskaja [6]

Total cost=$142

cost of parts=$62

cost paid for labour=$142-$62=$80

According to question,

》cost of labour per hr=$32

which can be written as,

》cost of labour/time=$32

Use cross multiplication,

》time=cost of labour/32

Since cost of labour is 80,

Time=80/32

=2.5hrs

6 0

3 years ago

Are the two triangles similar? Explain your answer.

Sveta_85 [38]

Answer:

Step-by-step explanation:

Two triangles are similar if their corresponding angles are congruent and the corresponding sides are in proportion They are the same shape, but not necessarily the same size

Triangle ABC 54 +68 + 58 = 180

Triangle EFG 68 +63 +49 = 180

In this case their corresponding angles are nor congruent

8 0

3 years ago

Calculate the axis of symmetry in the equation Y = (x+1) (x-4)

algol [13]

Answer:

Every parabola has a turning point called the axis of symmetry,so for this question you just have to find the turning points

x turning point= -b/2a,and the y turning point is gotten by replacing the value of x in the equation

y=(x+1)(x-4)

=x^2-3x-4

a is 1,b is -3 and c is -4

x= -(-3)/2(1)

=1.5

and y=x^2-3x-4

=1.5^2-3(1.5)-4

= -6.25

therefore the axis of symmetry is (1.5,-6.25)

I hope this helps

6 0

3 years ago

A person drinks 1 pint of milk a day. At this rate how many gallons will a person drink in a leap year (366 days)?

Diano4ka-milaya [45]

OK. SO first you need to know how many pints are in a gallon. ( one gallon = 8 quarts )

One day = one pint. So we want to find what 366 days equals. 1*366=366 pints in 366 days. We now have 366 pints. We need to convert that to gallons. One gallon equals 8 quarts, so we divide 366 by 8. 366/8= 45.75

So in one leap year a person drinks 45.75 gallons of milk

If that doesn't make sense, ask and i can re explain. Hope that helped!

3 0

3 years ago

Question number 16 pls answer

lozanna [386]

3x - 6 = 4x + 1
3x - 6 + 6 = 4x + 1 + 6
3x = 4x + 7
3x - 4x = 4x + 7 - 4x

X = -7
:)

5 0

3 years ago

Read 2 more answers