Ask question

Ask question

All categories

3 years ago

5

The value of y varies jointly with the values of x and z. When x=4 and z=10 , the value of y is 360 . What is the value of y whe

n x=5 and z=12 ?
A. 153
B. 540
C. 9
D. 450

1 answer:

zzz [600]3 years ago

3 0

360=K(4) (10)
360= 40 k
k=360/40
k=9

y=9 x z

When x=5 z=12

y= 10 (5) (12)
y= 600

You might be interested in

A farmer has a basket of peaches. He gives ⅓ of the peaches to one person, ¼ to another, ⅕ to another, ⅛ to another, and then gi

inessss [21]

Answer:

$\frac{1429}{120}$ or $11\frac{109}{120}$

Step-by-step explanation:

Given:

A farmer has a basket of peaches. He gives ⅓ of the peaches to one person, ¼ to another, ⅕ to another, ⅛ to another, and then gives 7 peaches to a 5th person.

Remaining peaches = 4

We need to find the original number of peaches in the basket.

The farmer gives the total number of peaches = $\frac{1}{3}+\frac{1}{4}+\frac{1}{5}+\frac{1}{8}+7$

Let x be the former gives the total number of peaches

We multiply and divide by 120 in right side of the above equation because of 120 is divided by all given denominator and then simplify.

$x = \frac{120}{120}(\frac{1}{3}+\frac{1}{4}+\frac{1}{5}+\frac{1}{8}+7)$

$x = \frac{1}{120}(\frac{120}{3}+\frac{120}{4}+\frac{120}{5}+\frac{120}{8}+7\times 120)$

$x = \frac{1}{120}(40+30+24+15+840)$

$x = \frac{1}{120}(949)$

$x = \frac{949}{120}$

We add the remaining peaches by given peaches for the original number of peaches in the basket.

Original number of peaches = $\frac{949}{120}+4$

Original number of peaches = $\frac{949+4\times 120}{120}$

Original number of peaches = $\frac{949+480}{120}$

Original number of peaches = $\frac{1429}{120}$

Original number of peaches = $11\frac{109}{120}$

Therefore the original number of peaches in the basket is $\frac{1429}{120}$ or $11\frac{109}{120}$

5 0

3 years ago

EleoNora [17]

Answer:

35N

Step-by-step explanation:

Find the constant multiplied to the mass:

8 * k = 40

Divided by 8

k = 5

Find the weight of a 7 kg mass

7 * 5 = 35N

5 0

3 years ago

A projectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t

Alex787 [66]

You need to find the x-coordinate (h) of the vertex of the parabola.

$-16t^2+704t=0\\
h=-\dfrac{b}{2a}=-\dfrac{704}{2\cdot(-16)}=22
$

After 22 seconds.

4 0

2 years ago

literal equations write formula that describes how much Denise spends at the books sale b equals the cost of each book n equals

igomit [66]

So, the answer is b multiplied by n or

b·n

Because she buys n books, and each book costs b dollars, so n·b gives you the total

6 0

3 years ago

Read 2 more answers

What do the inner planets and outer planets have in common

Klio2033 [76]

The Inner<span> and </span>Outer planets have<span> many things in </span>common, they both orbit around a star (In this case the star they orbit is the Sun) <span>All eight </span>planets<span> are round which make them similar.</span>

7 0

3 years ago