3 years ago

Can someone help me with these please

Mathematics

1 answer:

Savatey [412]3 years ago

4 0

Answer:

the answer is cubes curve

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Assume that y varies inversely with x. If y=9 when x=7, find y when x=2.

Aleks [24]

Answer:1.56

Step-by-step explanation:

For constant of proportionality of k,

y=(1/k)*x

If y =9,

9=7/k

K=7/9=0.78

y=0.78x

y=0.78*2=1.56

When x

4 0

3 years ago

Item 16

Lady bird [3.3K]

First answer is right
Base is 8
Height is 9
9x8=72
72/2=36

36 units ^2

5 0

3 years ago

Wilmer went up a hill for x minutes at a speed of y kilometers per minutes. Then he went down the same path at a speed of z kilo

dedylja [7]

Answer:

$xy=wz$

Step-by-step explanation:

Given that:

Speed of Wilmer up the hill = $y$ km/min

Time taken up the hill = $x$ minutes

Speed of Wilmer down the hill = $z$ km/min

Time taken up the hill = $w$ minutes

Distance can be calculated by multiplying the Speed with Time i.e.

The formula for distance is given as:

$Distance = Speed \times Time$

Distance up the hill = $y\times x =xy\ kilometers$

Distance down the hill = $z\times w =wz\ kilometers$

It is well known that, the distance up the hill and down the hill will be same.

Putting both the values equal, we get:

$xy=wz$

4 0

2 years ago

-36 ÷ 4 A) 4 groups of 9 negatives B) 4 groups of 9 positives C) 9 groups of 4 negatives D) 9 groups of 4 positives

Valentin [98]

Answer:

A) 4 groups of 9 negatives

Step-by-step explanation:

-36/4

-9

This means we have 4 groups of 9 negatives

7 0

3 years ago

Which equation shows that 30 is 6 times as many as 5?

irina [24]

Answer:

30 divided by 5

Step-by-step explanation:

7 0

3 years ago

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