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yaroslaw [1]
3 years ago
14

What is the value of this expression? 27+4×(8−4) Enter your answer in the box.

Mathematics
1 answer:
marta [7]3 years ago
3 0

Answer:

43.

Step-by-step explanation:

Follow PEMDAS (Parentheses, exponents, multiply, divide, add, subtract). First you do 8-4 which is 4, then you multiply 4 by 4 which is 16 since you multiply next, then you add 27 to 16 which then gets you to 43.

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20 ft to 8 yards in simplest form
Shalnov [3]

Answer:

6.67 yards is 20 feet. 8 yards is 24 feet. Not quite sure of the question

Step-by-step explanation:

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3 years ago
A student takes a part-time job to earn for summer travel. The number of hours, , the student has to work is inversely proportio
Andrej [43]

Answer:

(a) h = \frac{2400}{w}

(b)300 Hours

(c)150 Hours

(d)Reduced and halved.

(e) w = \frac{2400}{h}

Step-by-step explanation:

(a) The number of hours worked is inversely proportional to the wage.

This is written as:

h \propto \frac{1}{w} \\\text{Introducing variation constant k}\\h = \frac{k}{w}\\$Since the money to be raised is constant, k = $ \$2400\\Therefore, h = \frac{2400}{w}

(b)If the student earns $8 an hour

w=$8

\text{Number of Hours required, h} = \frac{2400}{8} =300 Hours

(c)When the wage per hour =$16

When w=$16

\text{Number of Hours required, h} = \frac{2400}{16} =150 Hours

The number of hours reduced and is in fact halved.

(d)

\text{When the wage per hour =w}, h = \frac{2400}{w}\\\text{When the wage per hour =2w}, h = \frac{2400}{2w}=\frac{1}{2}  X \frac{2400}{w} =\frac{h}{2}

The effect of raising the wage from $w to $2w per hour is that the number of hours required to work is reduced and exactly halved.

(e)The wage per hour is inversely proportional to the number of hours.

In fact,

\text{From h = }\frac{2400}{w}\\\text{Cross Multiplying}\\hw=2400\\\text{Dividing both sides by h}\\w = \frac{2400}{h}

8 0
3 years ago
Rewrite x^5+5r^3-9r+1 in the form q(x)+r(x)/b(x). What is q(x)?
Alex787 [66]

Answer:

a is the correct answer

Step-by-step explanation:


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Can someone help me with this?<br> No links please
Sphinxa [80]

Answer:

3) (4x-9)(4x+9)

Step-by-step explanation:

6 0
3 years ago
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Donna rides her bike at a rate of 192 miles per hour. How many miles can Donna travel in 13 of an hour?
seraphim [82]

Answer: 27miles

Step-by-step explanation:

multiply192 by 0.13=27

5 0
3 years ago
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