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tiny-mole [99]
3 years ago
8

X+7≥18 The solution is ??

Mathematics
2 answers:
frozen [14]3 years ago
5 0

Answer:

x \geq 11

Step-by-step explanation:

x+7 \geq 18

x \geq 18-7

x \geq 11

arlik [135]3 years ago
5 0

Answer:

x ≥ 11

Step-by-step explanation:

Given

x + 7 ≥ 18 ( subtract 7 from both sides )

x  ≥ 11

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The blueprint of a pool has a scale of 2 inches equals 7 feet. The scale drawing is shown below. the length is 20 and the width
AlladinOne [14]

Answer:

Part A:

Blueprint 10 inches ⇒ Actual 35 feet

Blueprint 20 inches ⇒ Actual 70 feet

Part B:

The cost of the cover is $857.5

Step-by-step explanation:

Part A:

∵ The drawing scale is 2 inches for 7 feet

∵ The length = 20 inches and the width = 10 inches

∴ The actual length = (20 × 7) ÷ 2 = 70 feet

∴ The actual width = (10 × 7) ÷ 2 = 35 feet

Part B:

∵ The cost per square foot = $0.35

∵ The area of the pool = 70 × 35 = 2450 feet ²

∴ The cost of the cover = 2450 × 0.35 = $857.5

8 0
3 years ago
In how many different ways can you answer a multiple choice test that has 5 questions and 3 choices for each answer?
GarryVolchara [31]

Answer:

243

Step-by-step explanation:

If there is one question that has three choices a1, a2, and a3, then there will be 3 i.e. 3¹ different ways of answering which are a1 or a2 or a3.

If there are two questions that have answer choices a1, a2, a3 and b1, b2, b3 then there will be 9 i.e. 3² different ways of answering which are a1-b1, a1-b2, a1-b3, a2-b1, a2-b2, a2-b3, a3-b1, a3-b2, and a3-b3.  

Similarly, when there are 5 questions that have three choices each, then there will be 3⁵ i.e. 243 ways of answering options. (Answer)

3 0
3 years ago
How do you get 987589 rounded to the nearest whole number im giving 45 points
lubasha [3.4K]

Answer:

it is a whole number there's something wrong in the question

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
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strojnjashka [21]
Use the equation of -b/2a, so if you have a line you can just plug in the numbers.
3 0
3 years ago
Mike scored a 125 at a semi-final dividing competition season. He scored 95 at this final season. What is the percentage decreas
IrinaK [193]

Answer:

There was a 24% decrease

Step-by-step explanation:

Percentage decrease = (final season's score - semi-final score) / semi final score x 100

\frac{95-125}{125} ×100

\frac{-30}{125} × 100 = -24%

3 0
2 years ago
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