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3 years ago

I NEED HELP WITH MY FINALL

Mathematics

2 answers:

sweet [91]3 years ago

5 0

what you need help with?

JulijaS [17]3 years ago

4 0

Answer:

it takes 2.56 (or 2 14/25) months

Step-by-step explanation:

Edmond has $45 in his saving account. He wants to purchase a computer that costs $768. He starts to babysit for his cousin and gets paid $90/week. He plans to spend some money and deposit $75/ week in his account. Define a variable and write an equation and solve to find how many months it takes for him to buy the computer. Assume that every month has 4 weeks

Even though Edmond is getting $90 a week, he's only depositing $75

Based on this information your equation would be:

75w = $768 where w = week

To solve that divide 75 by 768

w = 10.24 or 10 6/25

If there are 4 weeks in a month then your new equation would be

w/4 = m where m = months

To solve this, substitute w for 10.24 or 10 6/25

(10.24)/4 = m

m = 2.56 or 2 14/25

You might be interested in

At the circus, a clown is shot from a cannon. This situation can be modeled by the function: h = – 16t2 + 45t + 15, where 'h' is

weeeeeb [17]

Answer:

The maximum height is 46.64 feet.

Step-by-step explanation:

If we take the derivative of h whit respect to t and equal this to zero we would find the value of t which corresponds to the maximum h.

So, we have the function h(t):

$h(t)=-16t^{2} + 45t + 15$

Taking the derivative, we have:

$\frac{dh(t)}{dt}=-32t + 45=0$

Now, we solve it for t:

$t=\frac{45}{32}=1.4\: s$

Finally, we put this value of t into the original equation.

$h(t)=-16(1.4)^{2} + 45(1.4) + 15$

$h_{max}=46.64\: ft$

Therefore, the maximum height is 46.64 feet. All the given options are wrong, the one that comes closest is option A.

I hope it helps you!

4 0

3 years ago

Solve 4h = 92 for h.<br><br> h = ___

Alex Ar [27]

Answer:

H= 23

Step-by-step explanation:

92 divided by 4 will give you 23

8 0

2 years ago

Read 2 more answers

(4y+5)(7y-3)= what is the solution to this problem

nikdorinn [45]

Answer:

all work is pictured/shown

6 0

3 years ago

a weather balloon is launched from a height of 475 feet above sea level. the balloon rises at a constant rate of 85 feet per min

GenaCL600 [577]

In this question , it is given that a weather balloon is launched from a height of 475 feet above sea level. the balloon rises at a constant rate of 85 feet per minute.

Here we use the slope intercept form, which is

$y = mx+b$