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nika2105 [10]
3 years ago
7

Add 3/7 + 8/9 . Simplify the answer and write as a mixed number

Mathematics
1 answer:
Fudgin [204]3 years ago
5 0
You will get both of the fractions over the same denominator, so it will be 27/63 and 56/63, then you will add the two numerators, so it will then come out to 83/63, and you will then simplify that by subtracting 63 from 83, and will get 1  20/63
You might be interested in
Stoplight a changes color every 30 seconds and stoplight b changes every 40 seconds. after how many seconds will the stoplights
andrey2020 [161]

Answer:

After 120 seconds

Step-by-step explanation:

Here, we want to know the number of seconds after which both spotlights will change colors at the same time again.

Basically, what we want to do here is to

calculate the value with which 30 and 40 have the same multiples or we want to

calculate the lowest common multiple of 30 and 40

The multiples of 30 are 30,60,90,120 etc

The multiples of 40 are 40,80,120 etc

We can see that the lowest common multiple of both is 120

So therefore the spotlights will change colors at the same time after 120 seconds

6 0
3 years ago
what does this mean when a rhombus is split into 2 triangles ; what's the formula to find the value of x? also it's about polygo
tangare [24]

Answer/Step-by-step explanation:

The rhombus when split into two triangles will give us two equilateral triangles that are congruent to each other.

Therefore:

The two bases of both triangles will have equal angle measures of 4x + 5 each and a third angle measure of 8x - 6.

✅Formula to find the value of x:

(8x - 6) + 2(4x + 5) = 180° (sum of triangle)

8x - 6 + 8x + 10 = 180

8x + 8x - 6 + 10 = 180

16x + 4 = 180

16x + 4 - 4 = 180 - 4

16x = 176

16x/16 = 176/16

x = 11

3 0
3 years ago
Ayesha bought a 24-pack of lip gloss for $18.96. What is the unit cost per tube of lip gloss?
bogdanovich [222]
Divide the total # of lip gloss Ayesha bought by the total cost.

24/$18.96
=$1.26582278 If the unit cost is rounded to the hundreths, it'll be $1.27.
4 0
3 years ago
Read 2 more answers
Erghweradstrfhbsrdfthwrth
meriva

745 is the answer

basically,

775 - 15 l-2l   (absolute value = positive number)

so

775 - 15 (2)

MULTIPLY -15 X 2 -----> -30

775 - 30

= 745

5 0
3 years ago
Which two factors would give a product of 9.1? A. 0.7 and 1.3 B. 7 and 0.13 C. 0.7 and 13 D. 7 and 13 E. 0.7 and 0.13
Zepler [3.9K]

Answer:

A

Step-by-step explanation:

0.7 * 1.3= 9.1

5 0
3 years ago
Read 2 more answers
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