4 years ago

Review word problems ?

Mathematics

1 answer:

LiRa [457]4 years ago

6 0

Answer:

Step-by-step explanation:

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250 gram as a percentage of 1 kg

kodGreya [7K]

Hey there!

Answer: 25%

$\rightarrow \: (\sf{ \frac{250}{1000} ) \times 100}$

$\rightarrow \: ( \sf{0.25) \times 100}$

$\rightarrow \: \sf{ = 25\%}$

5 0

2 years ago

Read 2 more answers

Z varies directly as x^3 and inversely as y^3. if z=59 when x=8 and y=8, find Z if x=3 and y=4

marissa [1.9K]

$z=\dfrac{kx^3}{y^3}\\\\\\59=\dfrac{k\cdot 8^3}{8^3}\\k=59\\\\\\z=\dfrac{59x^3}{y^3}\\\\\\z=\dfrac{59\cdot 3^3}{4^3}=\dfrac{1593}{64}$

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2 years ago

Graph a line that goes through the following 2 points ,(-4,-5),(-3,-3) and write an equation

yuradex [85]

Hope this helps!
the equation is y=mx+b and when you plug in the numbers it would be y=2x+3

6 0

3 years ago

The length of a rectangle is three times its width. if the area of the rectangle is 75 in2, find its perimeter.

UkoKoshka [18]

Answer:

40 in

Step-by-step explanation:

For a width of w, the length is 3w and the area and perimeter are ...

A = LW = (3w)(w) = 3w^2

P = 2(L+W) = 2(3w +w) = 8w

We are given the area, so we can find w to be ...

75 in^2 = 3w^2

25 in^2 = w^2 . . . . . divide by 3

5 in = w . . . . . . . . . square root

Then the perimeter is ...

P = 8w = 8(5 in) = 40 in

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3 years ago

How many tenths would you need to make the number 17

tatyana61 [14]

You would need one because you arent yet to 20 so it takes one tenth for example;

1.7 or 7/10

Thats my guess tho man if it is more complicated than that, SORRRYYYY

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3 years ago