What is the common denominator of 8\7 and 2\4

Answers

Answer 1

Answer:

Answer: 28

Step-by-step explanation:

To find the common denominator, you want to find the least common multiple of 4 and 7. The easiest way to do this is to multiply the denominators.

4*7=28

Therefore, the common denominator is 28.

Answer 2

Answer:

Final answer:

The common denominator of the fractions 8/7 and 2/4 is 28. This is found by multiplying the original denominators together, as this resulting product can be evenly divided by both original denominators.

Explanation:

The question is asking for the common denominator of two fractions, 8/7 and 2/4. A common denominator is a number that both denominators can divide into evenly.

To find this, let's first look at the denominators of your two fractions. We have 7 and 4 as the denominators.

Start by multiplying these two numbers together to give 28. Indeed, both 7 and 4 can divide into 28 evenly (7*4=28, 4*7=28) so, 28 is a common denominator for these two fractions.

Therefore, the common denominator of 8/7 and 2/4 is 28.

Learn more about Common Denominator here:

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Calculate the average density of the unknown liquid.

Answers

Step-by-step explanation:

students did 30 years ago? 1) True 2) False

A sphere with a diameter of 16mm has the same surface area as the total surface area of a right cylinder with the base diameter equal to the sphere diameter. How high is the cylinder?A. 16 mm
B. 8 mm
C. 18 mm
D. 14 mm

Answers

$R_(sphere)= (1)/(2) *16=8[mm]\n A_(sphere)=4 \pi R^(2)\n A_(cylinder)=2 \pi R(R+h)\n\n 4\pi R^(2)=2 \pi R(r+h)\n (4\pi R^(2))/(2 \pi R) =r+h\n h= (4\pi R^(2))/(2 \pi R)-R=2R-R=R\n R=8[mm]$

So the answer is B. 8 mm

Answer:

8 mm

Step-by-step explanation:

32% of 25 pages in percent

Answers

32% or 25 is 8
Converting percentage to a decimal:
32% = 32 / 100 = 0.32

What is 32% of 25
= 32% * 25
= 0.32 * 25
= 8

$32 \% = .32\nMultiply\n.32 * 25 = 8\n\boxed 8$

What is the slope of y = -42 - 3?

Answers

I think is -42 the answer

A pilot flew a jet from location A to B, a distance of 2500 meter,on the return trip the average speed was 20 percent faster than the outbound speed,the round-trip took 9 hours 10 minutes . What is the jet's speed from A to B.

Answers

Answer: The jet's speed from A to B would be 5.5 km/hr.

Step-by-step explanation:

Since we have given that

Distance = 2500 meter

Outbound speed be x

Average speed be $(100+20)/(100)x=(120)/(100)x=1.2x$

Time = 9 hours 10 minutes = $9(10)/(60)=9(1)/(6)=(55)/(6)$

According to question, it becomes,

$(2.5)/(x)+(2.5)/(1.2x)=(55)/(6)\n\n(1.2x+x)/(1.2x^2)=(55)/(6* 2.5)\n\n(2.2x)/(1.2x^2)=(11)/(3)\n\n(2.2)/(1.2x)=(11)/(3)\n\n2.2* 3=1.2x\n\n6.6=1.2x\n\n(6.6)/(1.2)=x\n\nx=5.5\ km/hr$

Hence, the jet's speed from A to B would be 5.5 km/hr.

What is the slope of the graph of 4x - 8y = 11?
A. 1/2
B. 2
C. -2
D. - 1/2

Answers

Hey there.. Lets solve this problem with steps

→ Basic Standard Formula
y = mx + b

→ Step 1 ( taking x to right side or arranging the equation in standard form)
-8y = -4x + 11

→Step 2 ( keeping y at it's own place by dividing both sides by -8)
y = $(-4)/(-8)$ x - $(11)/(8)$
y = $(1)/(2)$ x - $(11)/(8)$

So, m = slope in standard formula
So, m = $(1)/(2)$

Correct Option is A.

Hope this helped you.. :)

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