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Nutka1998 [239]

3 years ago

11

The ratio of boys to girls in Ella's grade is 3 to 4. The ratio of boys to girls in Minh's grade is 4 to 5. Each grade has a tot

al of 20 girls. How many boys are in each grade?

1 answer:

MariettaO [177]3 years ago

5 0

Ella’s grade has 15 boys whilst Minh’s grade has 16 boys - hope this helps!

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8. The measures of two angles in an isosceles triangle are shown in the diagram.

mote1985 [20]

Answer:

A

Step-by-step explanation:

Because 45 + 2x = 180 divide it by 2 gives 4

8 0

3 years ago

In a collision, a 5 kg mass moving at 2m/s transfers all of its momentum to a 1 kg mass. What is the velocity of the 1kg mass af

statuscvo [17]

Answer:
velocity = 10 m/sec in the same direction as the first body did

Explanation:
The momentum of the body can be calculated as follows:
momentum = mass * velocity

For the first body, we have:
mass = 5 kg
velocity = 2 m/sec
momentum = mass * velocity
momentum = 5 * 2 = 10 kg.m/sec

We know that this momentum is transferred completely to the second body

For the second bode, we have:
momentum = 10 Kg.m/sec
mass = 1 kg
momentum = mass * velocity
10 = 1 * velocity
velocity = 10/1
velocity = 10 m/sec

Finally, we should get the direction of the motion:
Both the velocity of the first and second bodies have positive values. Therefore, the second body is moving in the same direction as the first body did.

Hope this helps :)

6 0

3 years ago

Read 2 more answers

Find the first four terms of the sequence an = 4n-6

natulia [17]

Answer:

The first four terms of the sequence are-6, -2, 2 and 6

Step-by-step explanation:

The given sequence is $a_n=4n-6$

In order to find the first four term of the sequence we put n =0, 1, 2 and 3.

For n =0

$a_0=4(0)-6=-6$

For n =1

$a_1=4(1)-6=-2$

For n =2

$a_2=4(2)-6=2$

For n =3

$a_3=4(3)-6=6$

Therefore, the first four terms of the sequence are

-6, -2, 2 and 6

5 0

3 years ago

Here is number of goals a hockey team scored in each 10 matches 3 4 3 2 5 3 5 6 2 4 find the median

marusya05 [52]

Answer:

3.5

Step-by-step explanation:

3 0

3 years ago

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PLEASE HELP T-T

jolli1 [7]

Answer:

D.) He jogged 5 miles west and 12 miles north

Step-by-step explanation:

if you think of this as a right angled triangle, you are trying to work out the hypotenuse (longest side)

the formula is $a^{2}$ + $b^{2}$ = $c^{2}$

so, $5^{2}$ + $12^{2}$ = 169

169 = the $hypotenuse^{2}$

$\sqrt{169}$ = 13 miles

8 0

3 years ago

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