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3 years ago

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Mathematics

1 answer:

podryga [215]3 years ago

3 0

Answer:

its a 90 degrees bc it's going clock wise

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4. There are seven days in a week. How many days are there in 16 weeks?

lesya692 [45]

Answer:

There are 112 days in 16 weeks

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3 years ago

John's father weighs 20 pounds more than twice

svet-max [94.6K]

Answer:

20+2y

Step-by-step explanation:

20 pounds more would be an addition of 20 and twice would have to be represented by 2y because it is double John's weight y.

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3 years ago

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20p + 9t=44.4 solve for p

lana66690 [7]

20p + 9t = 44.4

Subtract 9t from both sides:

20p = 44.4 - 9t

Divide both sides by 20:

p = 2.22 - 0.45t

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3 years ago

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Twenty seven pears are packed in bags of three. Five bags of pears are sold. How many pears are left

aliya0001 [1]

Answer:

$Pears\ Left = 12$

Step-by-step explanation:

Given

$Pears = 27$

$Bags\ Sold = 5$

Required

Determine the number of bags sold

First, we need to determine the number of bags for 27 pears;

Since they are packed in 3s

$Bags = 27/3$

$Bags = 9$

Hence:

9 bags were used for 27 pears;

After 5 bags were sold, we have:

$Bags\ Left = 9 - 5$

$Bags\ Left = 4$

Recall that the pears are packed in 3s

So:

$Pears\ Left = 4 * 3$

$Pears\ Left = 12$

4 0

3 years ago

1/2x+1/4y=6. 1/5x+1/3y=1

Ierofanga [76]

$\frac{1}{2}x+\frac{1}{4}y=6 \ \ \ |\times 2 \\
\frac{1}{5}x+\frac{1}{3}y=1 \ \ \ |\times (-5) \\ \\
x+\frac{1}{2}y=12 \\
\underline{-x-\frac{5}{3}y=-5} \\
\frac{1}{2}y-\frac{5}{3}y=12-5 \\
\frac{3}{6}y-\frac{10}{6}y=7 \\
-\frac{7}{6}y=7 \\
y=7 \times (-\frac{6}{7}) \\
y=-6 \\ \\
x+\frac{1}{2}y=12 \\
x+\frac{1}{2} \times (-6)=12 \\
x-3=12 \\
x=12+3 \\
x=15 \\ \\
\boxed{(x,y)=(15,-6)}$

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3 years ago

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