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jek_recluse [69]
3 years ago
6

Peter's teacher says he may have his report card percentage based on either the mean or the median and he can

Mathematics
2 answers:
Alona [7]3 years ago
5 0

t would be best if Peter's report card percentage was based on the mean and if he could drop a percent, he should drop the 44%.

Step-by-step explanation:

The median (without dropping a score) of this set would be 75%

( 44%, 64%, 71%, 75%, 84%, 90%, 98% )

The mean (without dropping a score) of this set would be 75.1428571%

526 ÷ 7 = 75.14 ( 75.1428571 )

Mandarinka [93]3 years ago
5 0

Answer:

A. Peter should choose the mean after dropping one test score.

Step-by-step explanation:

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2 years ago
A pineapple is 7 times as heavy as an orange. The pineapple also weighs 870 grams more than the orange.
Kazeer [188]
Let's say that the weight of the orange is x and the weight of the pineapple is y.
The weight of the pineapple is 7 times that of the orange, so
y = 7x.
Also, y = x + 870.
Therefore, 7x = x + 870.
If we take away x from both sides, we get 6x = 870
If we divide both sides by 6, we get x = 145.
Therefore, the weight of the orange is 145 g.
Also, 145 + 870 = 1015.
So the weight of the pineapple is 1015 g.

To convert grams into kilograms, they must be divided by 1000.
Therefore, the weight of the orange in kilograms is 145/1000 = 0.145 kg
And the weight of the pineapple is 1015/1000 = 1.015 kg.

Answers:
a. 145g for the orange and 1015g for the pineapple.
b. 0.145kg for the orange and 1.015kg for the pineapple.
8 0
3 years ago
Read 2 more answers
Bob brought 3 autographed baseballs for show and tell. They are 1/6 of his whole collection. How many autographed baseballs are
natulia [17]
Bob brought 3 autographed baseball for show and tell.Now, that 3 autographed is said to be 1/6 of his whole collection.Let's find out how many autographed did Bob have in total.=> 3 autographed = 1/6 of his collections.To be able to have a value of 1 whole collections we need 6 1/6s=> 1/6 + 1/6 + 1/6 + 1/6 + 1/6 + 1/6 = 6/6 or 1Thus, the value of his current autographed in hand will be multiplied with 6=> 3 * 6 = 18<span>Therefore, he have a total of 18 autographed.</span>
6 0
3 years ago
Which sequence of transformations means the image would be congruent to the original figure instead of similar to it?
Gnom [1K]

Answer:

B.) translation and rotation

Step-by-step explanation:

3 0
3 years ago
Two projectiles are thrown with the same initial speed, one at an angle θ with respect to the level ground and the other at angl
vichka [17]

Answer:

Height is different for both .

The time in air are different for both.

Step-by-step explanation:

Given that initial velocity is same

Lets take initial velocity = u

One at  an angle θ.

other at angle 90° − θ.

Also given that their range are same

R_1=R_2

R_1=\dfrac{u^2sin2\theta }{g}

R_2=\dfrac{u^2sin2(90-\theta)}{g}

R_2=\dfrac{u^2sin(180-2\theta)}{g}

We know that

sin(180° − θ)=sin θ

So

R_2=\dfrac{u^2sin2\theta }{g}

Height in the air

h_1=\dfrac{u^2sin^2\theta}{2g}

h_2=\dfrac{u^2sin^2(90-\theta)}{2g}

We know that

sin(90° − θ)=cos θ

h_2=\dfrac{u^2cos^2\theta}{2g}          

From above we can say that height is different for both .

Time:

T_1=\dfrac{2usin\theta}{g}

T_2=\dfrac{2usin(90-\theta)}{g}

sin(90° − θ)=cos θ

T_2=\dfrac{2ucos\theta}{g}

The time in air are different for both.

5 0
3 years ago
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