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2 years ago

What is 7y x 38 equals 93

Mathematics

1 answer:

Goshia [24]2 years ago

5 0

Answer:

y=7/20

Step-by-step explanation:

7y*38=93

divide 38 on both sides this cancels out the 38 on the left side

this gives you

2.45

then divide 7 from both sides.

this gives you roughly 7/20

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A wooden board 100 centimeters long is cut into two pieces. One piece is 16 centimeters longer than the other. What are the leng

Bezzdna [24]

x = the length of one piece

y = the length of the other piece

the total length is 100 cm this means

x + y = 100

one piece is 16 inches longer than the other

first we need to convert inches to cm:

1 in = 2.54 cm

16 in = 2.54*16 = 40.64

now we can write

x = y + 40.64

by solving the system of equations

x + y = 100

x = y + 40.64

we find

x = 70.32 cm

y = 29.68 cm

the lengths of the two pieces are 70.32 cm and 29.68 cm.

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2 years ago

Which measurement is the most precise? A) 29 cm B) 28.8 cm Eliminate C) 28.76 cm D) 28.762 cm

ioda

Answer:

D) 28.762 cm

Step-by-step explanation:

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2 years ago

A carpenter bought 750 nails. Each nail has a mass of 5.2×10−3 kilogram. What is the total mass, in kilograms, of the nails the

lawyer [7]

The total mass, in kilograms, of the nails the carpenter bought is 3.9 kilogram

<h3><u>Solution:</u></h3>

Given that carpenter bought 750 nails

Each nail has a mass of $5.2 \times 10^{-3}$ kilogram

To find: total mass, in kilograms of the nails bought

The total mass of the nails bought can be found out by multiplying number of nails bought by mass of each nail

Number of nails bought = 750

Mass of each nail = $5.2 \times 10^{-3}$ kilogram

total mass of the nails bought = number of nails bought x mass of each nail

$\text {total mass of the nails bought }=750 \times 5.2 \times 10^{-3}$

$\text {total mass of the nails bought }=3900 \times 10^{-3}=\frac{3900}{1000}=3.9$

Thus the total mass of nails bought is 3.9 kilogram

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Answer:

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Step-by-step explanation:

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