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3 years ago

If Martin scored a 77 and an 83 on his last two quizzes, what was his quiz average

Mathematics

1 answer:

mihalych1998 [28]3 years ago

6 0

His average is 80%. You take the two scores add them up and divide by the number of scores.

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Given JKL : XYZ, find the scale factor DO NOT find x

ryzh [129]

Answer:

Step-by-step explanation:

6 + 3 = 9

8 + 3 = 11

7 0

3 years ago

Can somebody help me with this?

Natasha_Volkova [10]

Step-by-step explanation:

Hey there!

By looking through figure, l and m are parallel lines and a transversal line passes through the lines.

Now,

7x + 12° = 12x - 28°( alternate angles are equal)

12°+28° = 12x - 7x

40° = 5x

$x = \frac{40}{5}$

Therefore, x = 8°

Now,

12x - 28° + 9y - 77 = 180° ( being linear pair)

12×8° - 28° + 9y -77° = 180°

96° - 28° + 9y - 77° = 180°

-9 + 9y = 180°

9y = 180° + 9°

y = 189°/9

Therefore, y = 21°

Therefore, X = 8° and y= 21° .

Hope it helps....

4 0

3 years ago

Scott stood on a 42 in. high chair, then jumped into a 8 in.

Mamont248 [21]

Answer:

8-42 = -34 will be applied

4 0

3 years ago

How many centimeters are there in 1 yard if there are 2.54 centimeters per inch?

mars1129 [50]

There are 36 inches in a yard so 36*2.54 = 91.44 centimeters

4 0

3 years ago

Maureen McIlvoy, owner and CEO of a mail order business for wind surfing equipment and supplies, is reviewing the order filling

lara31 [8.8K]

Answer:

Maureen's null hypothesis is, H₀: p₁ ≥ p₂.

Step-by-step explanation:

Maureen McIlvoy, owner and CEO of a mail order business for wind surfing equipment and supplies wants test whether her goal of shipping 100% orders within 24 hours is achieved or not.

After reviewing the order filling operations at her warehouses she determines that neither the East coast nor the West coast warehouse has achieved the goal. But the East Coast warehouse has consistently out-performed the West Coast warehouse.

To check whether this determination is correct or not Maureen's staff randomly selected 200 orders from the West Coast warehouse (population 1) and 400 orders from the East Coast warehouse (population 2).

Of the 200 orders from the West Coast warehouse, 190 were shipped within 24 hours. And of the 400 orders from the East Coast warehouse, 372 were shipped within 24 hours.

The hypothesis can be defined as follows:

H₀: The proportion of orders that were shipped within 24 hours is not more for East Coast warehouse than for West Coast warehouse, i.e. p₁ ≥ p₂.

Hₐ: The proportion of orders that were shipped within 24 hours is more for East Coast warehouse than for West Coast warehouse, i.e. p₁ < p₂.

Thus, Maureen's null hypothesis is, H₀: p₁ ≥ p₂.

8 0

3 years ago

If Martin scored a 77 and an 83 on his last two quizzes, what was his quiz average ​

If Martin scored a 77 and an 83 on his last two quizzes, what was his quiz average