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3 years ago

At a pie eating contest Jonny, Jonny are 8 pies in 5 minutes. How much time did he spend on each pie?

2 answers:

Klio2033 [76]3 years ago

7 0

Johnny ate 8 pies in 5 minutes

He must have ate 1 pie in (5/8) minutes

(5/8) minutes = 5/8 * 60 = 75/2 = 37.5 seconds

On each pie he spent 37.5 seconds.

Molodets [167]3 years ago

5 0

Answer:

Jonny spent 0.625 minute or 37.5 seconds on each pie.

Step-by-step explanation:

At a pie eating contest Jonny ate 8 pies in 5 minutes.

He spend time on eating each pie = $\frac{5}{8}$

= 0.625 minutes

to convert 0.625 minutes to seconds we multiply it by 60

0.625 × 60 = 37.5 seconds.

Jonny spent 0.625 minute or 37.5 seconds on each pie.

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2 years ago

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elena-s [515]

Answer:

Step-by-step explanation:

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2 years ago

2x+5y=-3<br>3x-y=21<br>help me

arlik [135]

Problem:
Solve
2
x
+
5
y
=
−
3
;
3
x
−
y
=
21
Steps:
I will try to solve your system of equations.
3
x
−
y
=
21
;
2
x
+
5
y
=
−
3
Step: Solve
3
x
−
y
=
21
for y:
3
x
−
y
+
−
3
x
=
21
+
−
3
x
(Add -3x to both sides)
−
y
=
−
3
x
+
21
−
y
−
1
=
−
3
x
+
21
−
1
(Divide both sides by -1)
y
=
3
x
−
21
Step: Substitute
3
x
−
21
for
y
in
2
x
+
5
y
=
−
3
:
2
x
+
5
y
=
−
3
2
x
+
5
(
3
x
−
21
)
=
−
3
17
x
−
105
=
−
3
(Simplify both sides of the equation)
17
x
−
105
+
105
=
−
3
+
105
(Add 105 to both sides)
17
x
=
102
17
x
17
=
102
17
(Divide both sides by 17)
x
=
6
Step: Substitute
6
for
x
in
y
=
3
x
−
21
:
y
=
3
x
−
21
y
=
(
3
)
(
6
)
−
21
y
=
−
3
(Simplify both sides of the equation)
Answer:
y
=
−
3
and
x
=
6

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