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daser333 [38]
2 years ago
10

Not sure how to do 13-18.

Mathematics
2 answers:
icang [17]2 years ago
8 0

Answer:

13-18=-5

Step-by-step explanation:

QveST [7]2 years ago
8 0

Answer:

I cant down load the pic

Step-by-step explanation:

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Work out the percentage change to 2 decimal places when a price of £198 is increased to £209.99.
bija089 [108]

Answer:

The percentage change = 6.05%

Step-by-step explanation:

New value = £209.99

Old value = £198

Percentage change = [New Value - Old Value] / [Old Value] × 100

                                 = [209.99 - 198] / [198] × 100

                                 = [11.99] / [ 198] × 100

                                 = 0.06 × 100

                                 = 6.05%

Therefore, the percentage change = 6.05%

5 0
3 years ago
Simplify 10 + 4(x + 1) + 5
Levart [38]
Distribute
10+4x+4+5

Combine like terms
19+4x

Final answer: 4x+19
4 0
3 years ago
Evaluate the expression if a = 9 and b = 2. 5(a 3b) 20 51 70 75
devlian [24]
5(a + 3b) = 5(9 + 3(2)) = 5(9 + 6) = 5(15) = 75
5 0
3 years ago
7. What is 45% of 115? Show your work.
olchik [2.2K]
45/100 × 115 = 51.75...........
6 0
3 years ago
Read 2 more answers
Solve for x. Round to the nearest tenth of a degree, if necessary.​
MissTica

Answer:

x ≈ 54.8°

Step-by-step explanation:

Using the tangent ratio in the right triangle

tan x = \frac{opposite}{adjacent} = \frac{PQ}{QR} = \frac{7.1}{5} , then

x = tan^{-1} (\frac{7.1}{5} ) ≈ 54.8° ( to the nearest tenth )

4 0
2 years ago
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