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Colt1911 [192]
3 years ago
11

Yesterday, Mary had n baseball cards. Today, she got 8 more. Using , write an expression for the total number of baseball cards

she has now.
Mathematics
2 answers:
Oksana_A [137]3 years ago
3 0

Answer:

n + 8 =

Step-by-step explanation:

Yesturday she had n

plus the 8 she got today

the equation is

n+8=?

slavikrds [6]3 years ago
3 0

Answer:

8N

Step-by-step explanation: the n is unknown sooooo it is 8n. Brainly pls

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1/4 of Mai’s height is equal to 2/5 of Jon’s height. Find the ratio of Mai’s height to Jon’s height.
nasty-shy [4]

1/4th of Mai’s height is equal to 2/5th of Jon’s height

Let 'x' represent Mai's height and 'y' represent Jon's height.

Therefore, 1/4th of "x" should be equal to 2/5th of "y". This gives us the following equation :

(1/4)x = (2/5)y

multiply both sides by 4/y

x/y = 4*(2/5)

x/y = 8/5

x:y = 8:5

The ratio of Mai's s height to Jon's height is 8 to 5

3 0
3 years ago
Calculate the mean, median and mode of the following data.
garik1379 [7]

Answer:

d.mean =15, median =15.5, mode = 16

Step-by-step explanation:

hello,

to find the mean, you add all the numbers together and divide it by the total number of numbers. so that would be 150 (total sum) divided by 10 (number of numbers) to get 15.

to find the median, you would organize the numbers from least to greatest and find the middle number which is 15.5.

last but not least, to find the mode, just look for the number that appears most often. Therefore, the mode would be 16.

hope this helped!

3 0
3 years ago
Read 2 more answers
Given that x is a nonnegative number, a student conjectured that x + 3 < x2.
nadya68 [22]

Answer:

C (x = 2)

Step-by-step explanation:

Since x is a non-negative number, A and B are eliminated.

This leaves C and D.

C: x = 2,

2 + 3 < 2^2

5 < 4 is false.

So C would be a counterexample.

Hope this helps!

6 0
3 years ago
angle 1 and angle 2 form a linear pair. If measure angle 1 =18x-1 and measure angle 2=23x+17, find measure angle 2.
finlep [7]
Hey there!
Here's your answer: m<2=114.52 degrees
Here's how I got it: we know that a linear pair of angles is supplementary, aka the sum of the angles is 180 degrees.
you would add 18x-1 and 23x+7 together to equal 180 and solve for x.
then, you would substitute x for 4.24 (rounded) into 23x+17
23(4.24)+17=114.52
Hope this helps!
6 0
3 years ago
Find the missing angle.
Svetlanka [38]

Answer:

85 degrees

Step-by-step explanation:

All angles in a triangle add up to 180 degrees

50 + 45 is 95

95 + 85 = 180

3 0
3 years ago
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