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saw5 [17]
4 years ago
6

Mr. Schwartz builds toy cars. He begins the week with a supply of 85 wheels, and uses 4 wheels for each car he builds. Mr. Schwa

rtz plans to order more wheels once he has fewer than 40 wheels left.
Mathematics
1 answer:
Reptile [31]4 years ago
5 0

When will he have less than 40 wheels left? Well you can make the equation...

85-4x=40

And then solve for x.

85-4x=40

-4x=-45

x=11 1/4 rounded up to 12

answer: He will have less than 40 wheels left after he has built 12 cars.

You might be interested in
The architect drew a design for the new kitchen. What is the area of the kitchen drawing?
nordsb [41]

Answer:

24

Step-by-step explanation:

Area of the kitchen = Area small rectangle + area large rectangle + area triangle

Area small rectangle = (8-4)*1.5

Area large rectangle = (8-4)* 3

Area triangle = (1/2)*base*height = (1/2)*4*3

Area of the kitchen = (8-4)*1.5 +  (8-4)* 3 + (1/2)*4*3 = 24 cm²

8 0
3 years ago
Mrs. Emily Francis saves RM10 000 in a bank . by the end of the eighth year , the money collected amounts to RM19 992.71.if the
Anna11 [10]

Answer:

8.85% per year

Step-by-step explanation:

To find the interest rate of a compounding interest, we use the formula:

r=n[(\dfrac{A}{P})^{\dfrac{1}{nt}}-1]

Before we start solving, let's break down all the variables that we have.

A = 19,992.71

P = 10,000.00

n = 2

t = 8

r = ?

Now let's put the values into the formula.

r=2[(\dfrac{19,992.71}{10,000.00})^{\dfrac{1}{2(8)}}-1]

r=2[(\dfrac{19,992.71}{10,000.00})^{\dfrac{1}{16}}-1]

r=2[(\dfrac{19,992.71}{10,000.00})^{0.0625}-1]

r=2[(1.9992.1)^{0.0625}-1]

r=2[1.0442499885-1]

r=2[0.0442499885]

r=0.08849997699 or 8.85%

So the rate the Mrs. Emily Francis got from the bank was 8.85% per year.

5 0
4 years ago
Use technology and the given confidence level and sample data to find the confidence interval for the population mean muμ. assum
nikitadnepr [17]

The given in this problem are:

99% confidence level

N = 61

Mean = 2.0 kg

Standard deviation = 4.8

Z value for a 9% confidence interval is 2.576

 

Confidence Interval = mean ± Z s/ sqrt n

= 2.0 ± 2.576(4.8/sqrt 61)

=2.0 ± 2.576 (0.6145770236779006736364371988794)

= 2.0 ± 1.5832

<span>= 0.4168 < x < 3.5832</span>

4 0
3 years ago
Lsplslsplpsplslpsllspslpslpslpslpsplspslpslpslpslpslsplsplspls
Ivan

Answer:

257.61

Step-by-step explanation:

FORMULA=  C=2πr=2·π·41≈257.6106

there is a screenshot included too

6 0
3 years ago
Read 2 more answers
Calculating the Estate Tax. Joel and Rachel are both retired. Married for 50 years, they’ve amassed an estate worth $2.4 million
ArbitrLikvidat [17]

If either Joe or Rachel dies in 2008, there will be no federal estate tax liability. There is an unlimited marital deduction for the surviving spouse. Only when both die will there be an estate tax liability over the $5.12 million exemption amount.

Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help. 

8 0
4 years ago
Read 2 more answers
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