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3 years ago

I need help with my online class

Mathematics

1 answer:

Fynjy0 [20]3 years ago

6 0

the answer is D/////

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Researchers studied the mean egg length (in millimeters) for a bird population. After taking a random sample of eggs, they obtai

Aneli [31]

Answer:

I cannot understand this question

Step-by-step explanation:

I don't know what is in the question

5 0

2 years ago

How would you estimate 412÷97?

marissa [1.9K]

Your answer would be 4.23 as the answer will be a long one, estimated.

6 0

3 years ago

....pls help me :((((((

Rina8888 [55]

Answer:

y= -7

Step-by-step explanation:

So first distribute the 8

4=8y+32-4y

now combine like terms (the -4y+8y)

4=32+4y

Subtract 32 on both sides to isolate 4y

-28=4y

now divide 4 on both sides to isolate Y

-7=y

so y= -7

5 0

3 years ago

Jane and sali cycled along the same 63 km route.

Alina [70]

Answer:

Sali's speed was 18.75 km/h.

Step-by-step explanation:

Jane took 3.5 hours to cycle the 63 km.

As, $Speed= \frac{Distance}{Time}$ , so the speed of Jane will be: $\frac{63}{3.5} km/h = 18 km/h$

Suppose, the speed of Sali is $x$ km/h

Sali caught up with Jane when they had both cycled 30 km.

So, the time required for Jane to cycle 30 km $= \frac{30}{18}=\frac{5}{3} hours$ and the time required for Sali to cycle 30 km $=\frac{30}{x} hours$

Given that, Sali started to cycle 4 minutes or $(\frac{4}{60}) or (\frac{1}{15}) hours$ after Jane started to cycle. So, the equation will be.......

$\frac{5}{3}-\frac{30}{x}= \frac{1}{15}\\ \\ \frac{30}{x}= \frac{5}{3}-\frac{1}{15}\\ \\ \frac{30}{x}= \frac{24}{15}\\ \\ 24x=450\\ \\ x= \frac{450}{24}= 18.75$

Thus, the speed of Sali was 18.75 km/h.

8 0

3 years ago

I need to have more or one answer

NeX [460]

I can’t see the pic sorry

5 0

3 years ago