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3 years ago

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A farmhouse shelters 10 animals. Some are pigs and sone are ducks. Altogether there are 36 legs. How many of each animal are the

re?

1 answer:

german3 years ago

7 0

8 pigs x 4 legs each = 32. so you need 2 ducks to give you 10 animals total. So 32 + 2 ducks with 2 legs = 36.

There are 8 pigs and 2 ducks.

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You have a mean score of 84 after taking five 100-point tests. What do you need to score on the sixth 100-point test to have a m

kap26 [50]

The mean of n numbers is the sum of the numbers divided by n.

You have a mean score of 84 after taking 5 tests. Let x be the sum of scores.
$\frac{x}{5}=84 \\
x=84 \times 5 \\
x=420$
You scored a total of 420 points on five tests.

You need to have a mean score of 85 after taking 6 tests. Let y be the score you need to obtain. Your total score on 6 tests is 420+y.
$\frac{420+y}{6}=85 \\
420+y=85 \times 6 \\
420+y=510 \\
y=510-420 \\
y=90$

You need to score 90 points on the sixth test.

8 0

3 years ago

Read 2 more answers

HELP !!! will give brainliest. must show work so i know what to do next time :)))

WINSTONCH [101]

Answer:

number 2

Step-by-step explanation:

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3 years ago

Parallel to y = 4x - 6 <br> through (6,-3)

kolbaska11 [484]

Answer:

y=4x-27

Step-by-step explanation:

Parallel lines have the same slope, so lets use 4 as the slope.

Plug in the slope, and the two points into point-slope form to find the y-intercept:

<u>y+3=4(x-6)</u>

1) Distribute the 4 to x and -6:

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2 years ago

In the parallelogram, M

alexira [117]

Answer:

112°

Step-by-step explanation:

<u>Given parallelogram JKLM with:</u>

m∠KLO = 53°
m∠MLO = 59°

<u>Find:</u>

m∠KJM

<u>We know opposite angles of parallelogram are congruent:</u>

m∠KJM = m∠KLM

<u>Use angle addition postulate:</u>

m∠KLM = m∠KLO + m∠MLO
m∠KLM = 53° + 59°
m∠KLM = 112°

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2 years ago

The area of a rectangle is 99 square units. Its width measures 9 units. Find the length of its diagonal. Round to the nearest te

mariarad [96]

Answer:

14.21 units (14.2)

Step-by-step explanation:

Formula for area is W(L) or width multiplied by length.

The formula for finding the length of a rectangle's diagonal is :

d = $\sqrt{w^{2}+l^{2} }$

Now we solve for d.

d = $\sqrt{w^{2} + (\frac{A}{W})^{2}$

= $\sqrt{9^{2} + (\frac{99}{9})^{2}$

≈ 14. 21267

≈ 14.2

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3 years ago