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3 years ago

Which expression represents the calculation "subtract 30 from 40, then multiply by 4

Mathematics

1 answer:

Rzqust [24]3 years ago

3 0

4( 40 - 30)

subtract 30 from 40 is expressed as 40 - 30

then multiply by 4 is expressed as 4 × (40 - 30) or 4(40 - 30) = 40

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Last month,Margo bought a tree that grows 2.5cm each day.It was 5cm tall when she bought it and now it 65cm tall. Write a equati

Effectus [21]

Answer:

The equation to determine the number of days Margo has owned the plant is $5+2.5x=65$ .

Step-by-step explanation:

Given:

Actual length of the tree = 5 cm

Current length of the tree = 65 cm

Per day growth Rate of plant = 2.5 cm

Let number of days she owned the plant be 'x'

Now We can say that,

Current length of the tree is equal to sum of Actual length of the tree and Per day growth Rate of plant multiplied by number of days she owned the plant.

Farming the above sentence in equation form we get;

$5+2.5x=65$

Hence the equation to determine the number of days Margo has owned the plant is $5+2.5x=65$ .

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2 years ago

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3 years ago

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2 years ago

Which number line shows the solution set for 2x - 30 _ > -36

Elena-2011 [213]

The number solution set 2 . 30 36

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3 years ago

You are planning a new production floor. You will need space for eight manufacturing processes and six stockpiles. Each takes 16

mina [271]

Answer:

Total space needed is 3136 square feet.

Step-by-step explanation:

We are given the following in the question:

Space required for eight manufacturing processes and six stockpiles.

Each takes 160 square feet.

Space required for 8 process =

$=8\times 160\\=1280\text{ square feet}$

Space required for 6 stockpiles =

$=6\times 160\\=960\text{ square feet}$

Total space =

$=1280 + 960\\=2240\text{ square feet}$

Open space required = 40%

$=\dfrac{40}{100}\times 2240\\\\=896\text{ square feet}$

Total space required =

$=2240 + 896\\=3136\text{ square feet}$

Thus, total space needed is 3136 square feet.

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3 years ago