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3 years ago

Someone help me with this pls

Mathematics

1 answer:

pentagon [3]3 years ago

5 0

Answer:

=6 ^-6 / 6^5

= 6^ -6+5

= 6^-1

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Lillian works in a balloon store . she will put 40 balloons into bunches.she must use the same number of balloons in each bunch.

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4 years ago

Karen was at the party for 3 hours. She skated for 1/3 of the party. How long did she skate?

Vladimir [108]

Answer:

1 hour

Step-by-step explanation:

Multiply the total time for the party by the fraction that she skated

3*1/3 = 3/3 =1

1 hour

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4 years ago

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Find the constant of variation k for the direct variation. 3x+5y=0

Elenna [48]

Direct variations take the form y=kx. We need to solve for y in order to find k.

3x+5y=0 
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y=(-3/5)*x 
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4 years ago

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If Matt filled a 2 1/5 cup container, how many 1/5 cups would he need to use

Kitty [74]

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4 years ago

Paul has 2/3 as many postcards as Shawn. The number of postcards Shawn has is 4/5 of the number of postcards Tim has. If the thr

ahrayia [7]

Tim has 56 more postcards than Paul.

Step-by-step explanation:

Total postcards boys have = 280

Let,

x = Paul's postcards

y = Shawn's postcards

z = Tim's postcards

According to given statement;

x + y + z = 280 Eqn 1

$x=\frac{2}{3}y$ Eqn 2

$y = \frac{4}{5}z$ Eqn 3

Putting value of y from Eqn 3 in Eqn 2

$x=\frac{2}{3}*\frac{4}{5}z\\\\x=\frac{8}{15}z$ Eqn 4

Putting value of x and y from Eqn 4 and Eqn 3 in Eqn 1

$\frac{8}{15}z+\frac{4}{5}z+z=280\\\\\frac{8z+12z+15z}{15}=280\\\\\frac{35z}{15}=280\\\\$

Multiplying both sides by $\frac{15}{35}$

$\frac{15}{35}*\frac{35}{15}z=280*\frac{15}{35}\\z=120$

Putting z=120 in Eqn 3

$y=\frac{4}{5}*120\\y=96$

Putting y=96 in Eqn 2

$x=\frac{2}{3}*96\\x=64$

Difference of Tim and Paul = 120-64 = 56

Tim has 56 more postcards than Paul.

Keywords: linear equation, substitution method

Learn more about substitution method at:

#LearnwithBrainly

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3 years ago