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Vesnalui [34]
3 years ago
10

What's the answer to this?

Mathematics
2 answers:
sergij07 [2.7K]3 years ago
8 0
3 1/4 :) mark brainliest?
LenKa [72]3 years ago
8 0

Answer:

13/4 or 3 1/4

Step-by-step explanation:

Make into improper fractions:

4x3+1 = 13, 1x3+1 = 4

13/3 ÷ 4/3

Dividing fractions rule: ALWAYS make the second one a reciprocal (flip the fraction) and then change the sign. Remember KCC, Keep, Change, Change.

So: 13/3 x 3/4

The 3's cancel leaving you with 13/4 or 3 1/4

Hope that helps. Brainliest is appreciated

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Evaluate the expression for the given value(s) of the variables s=7 k=4 x=6 8 - k+ x
kow [346]

Answer: 9

Step-by-step explanation:

s = 7

k = 4

x = 6

7 - 4 + 6

3 + 6

9

8 0
3 years ago
In ΔRST, t = 4.1 inches, r = 7.1 inches and ∠S=45°. Find the length of s, to the nearest 10th of an inch.
dem82 [27]

Answer:

The length of s is 5.1 inches to the nearest tenth of an inch

Step-by-step explanation:

In Δ RST

∵ t is the opposite side to ∠T

∵ r is the opposite side to ∠R

∵ s is the opposite side to ∠S

→ To find s let us use the cosine rule

∴ s² = t² + r² - 2 × t × r × cos∠S

∵ t = 4.1 inches, r = 7.1 inches, and m∠S = 45°

→ Substitute them in the rule above

∴ s² = (4.1)² + (7.1)² - 2 × 4.1 × 7.1 × cos(45°)

∴ s² = 16.81 + 50.41 - 41.1677568

∴ s² = 26.0522432

→ Take √ for both sides

∴ s = 5.10413981

→ Round it to the nearest tenth

∴ s = 5.1 inches

∴ The length of s is 5.1 inches to the nearest tenth of an inch

3 0
3 years ago
Read 2 more answers
Paul was thinking of a number. Paul adds 1.2 to the number the doubles the result to get an answer of 68.3. Form an equation wit
Nikitich [7]

Answer:

(x+1.2)2=68.3

Step-by-step explanation:

(x+1.2)2=68.3

6 0
2 years ago
39 is what percent of 60?
Fudgin [204]
The answer is 65%
You can find it by dividing 39 by 60 and you get .65 then multiply by 10 and you get 65!

Hope this helped and pls mark as brainliest!

~ Luna
3 0
3 years ago
Read 2 more answers
Olive rolls a 5 on one number cube and then Lolly rolls a 1 on another number cube. Is this a set of independent or dependent ev
rjkz [21]
<h3>Answer:  independent </h3>

Reason:

Each cube doesn't affect the other one, which means that the probabilities are not altered. This is assuming that the cubes don't bump into each other when rolling on the table. So either there's enough space on the table, or they take turns one at a time.

6 0
2 years ago
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