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3 years ago

Guys help i only have 10 more minutes left ;-;

Mathematics

2 answers:

zlopas [31]3 years ago

3 0

Answer:

Step-by-step explanation:

12 = 6/10 x

120 = 6x

x = 20

Mars2501 [29]3 years ago

3 0

Answer: :)

Step-by-step explanation:

60%=(12/x) ×100

60x=12×100

x=1200/60

x=20

There are 20 items on their grocery list.

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erica [24]

Answer:

14.6956521739

Step-by-step explanation:

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2 years ago

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129 is 43% of what amount?

solniwko [45]

129/43x100=300
129 is 43% of 300

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3 years ago

Round 80531 to the nearest thousand.

Iteru [2.4K]

That would be 8,1000

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3 years ago

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1b. b. At midnight the temperature is -7°C. At midday the temperature is 4°C. By how much did the temperature rise? * 1 point Yo

ElenaW [278]

Answer:

$Rise = 11^\circ C$

Step-by-step explanation:

Given

$Midnight \to -7^\circ C$

$Midday \to 4^\circ C$

Required

The temperature rise

This is the difference between the final and the initial temperature

$Rise = Midday - Midnight$

$Rise = 4^\circ C - -7^\circ C$

$Rise = 4^\circ C +7^\circ C$

$Rise = 11^\circ C$

8 0

3 years ago

Help me in this question

KATRIN_1 [288]

H = -5t^2 +5t + 10

a) t = 0, h = 10 at time 0

b) h = (-5t + 10) ( t + 1)

c) put 0 in for the height and set each factor = to 0 and solve each
0 = (-5t + 10) and 0 = (t + 1)
solve each t = 2 and t = -1, so t = 2 sec is your solution

d) because a parabola is symmetric, the max will be half way between -1 and 2, at t = 1/2

h = -5(1/2)^2 +5(1/2) + 10
h = -5(1/4) + 5/2 +10
h = -5/4 + 5/2 + 10
h = -5/4 + 10/4 + 40/4
h = 45/4

5 0

3 years ago