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3 years ago

I need answer like rn

Mathematics

2 answers:

lara31 [8.8K]3 years ago

6 0

Step-by-step explanation:

the 1st one is 2/11

the 2nd one is 6/20

Grace [21]3 years ago

4 0

Answer #1:
11/18
Why?
Since you’re adding fractions, you need to find the lowest common denominator.
The LCD of 2 and 9 is 18. Multiply the numerator and denominator of 1/2 by 9 and for 1/9, multiply both by 2.
Now you have 9/18 + 2/18. In addition, you don’t touch the denominators when they’re the same, and just carry them over. You only add the numerators. So, 9/18 + 2/18 = 11/18.

Answer #2:
15/16
Why?
Since you’re adding fractions again, you need to find the lowest common denominator.
The LCD of 4 and 16 is 16. This means you only have to change the first fraction and not the second one. Multiply the numerator and denominator of 3/4 by 4, giving you 12/16.
Now you have 12/16 + 3/16. You don’t touch the denominators when they’re the same, and just carry them over. You only add the numerators. So, 12/16 + 3/16 = 15/16.

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Cindys grandmother is five times her age. Find each of their ages if the sum of their ages is 90

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Answer:

cindy=15 grandmother=75

Step-by-step explanation:

90 divide 6 equal to 15

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3 years ago

Instead of dividing 400 by 16, Chip thought of an equivalent division problem that was easier for him to divide. Write an equiva

galben [10]

You can divided each by 4 and get this easy answer..

100 divided by 4= 25. Hope it helps!

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3 years ago

A rectangular airstrip measures 32.30 m by 210 m, with the width measured more accurately than the length. Find the area, taking

Bingel [31]

Answer: (d). Area = 6.8 × 10^3 m^2 (to 2 significant figure)

Step-by-step explanation:

The area to find rectangular is:

Area = length × breadth

Area = 32.30 × 210

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3 years ago

The sum of three numbers is 50. One number is five more than a second number. It is also twice the third. Find the numbers.

Blababa [14]

Let
One Number = x
Second Number =x-10
Third Number=x/2

Sum of three numbers is 50
x+x-10+x/2=50
2x-10+x/2=50
Multiply by 2 both sides
2*(2x-10+x/2)=50*2

4x-20+x=100
5x=100+20
5x=120
x=120/5
x=24

One number = x=24
Second number =x-10=24-10=14
Third number= x/2=24/2= 12

8 0

2 years ago

The graph shows the level of ibuprofen, y units, in a patient’s bloodstream x hours after the ibuprofen was taken. Select the co

ElenaW [278]

The graph is missing, so i have attached it.

Answer:

From 0 hours to 2 hours.

Step-by-step explanation:

From the attached graph, we can see that on the y-axis, denotes the level of ibuprofen in the patient’s bloodstream while the x-axis denotes the amount of hours after the ibuprofen was taken.

Now, looking at the graph, we can see that the curve goes up from a time of 0 hours which corresponds to 0 mg of ibuprofen to a time of 2 hours which corresponds to 400 mg of ibuprofen.

After that point, the curve begins to to go down. Since we are concerned with increase, we will make do with the first statement.

Thus, we can say the period at which the level of ibuprofen increased was from 0 hours to 2 hours.

6 0

3 years ago