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3 years ago

the next Science test will have 50 questions.How many questions does Julia need to answer correctly to recieve a score of 90%

2 answers:

5 0

She will have to answer 45 questions right because if you multiply 50×.90. You will get 45, so she can only get 5 questions wrong.

Katarina [22]3 years ago

3 0

Julie will need to answer 45 questions correctly to receive a score of 90%

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CHECK ANSWERS -

Tju [1.3M]

Both are correct.

Good job!

6 0

4 years ago

How would using a number line to find the sum -2+ -5?

Gelneren [198K]

Answer:

In finding the sum of 2+5 you would go right on the number line, while in finding the sum of -2+(-5) you would go left on the number line

Step-by-step explanation:

3 0

3 years ago

Two bicycles are driving on the circle in the same direction with speeds of 9 mph and 5 mph respectively. How many points are th

Molodets [167]

Answer:2

Step-by-step explanation:

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3 years ago

Which is the closest to the area that is painted blue? A 308 units B. 116 units C. 463 units? D 124 units

Charra [1.4K]

Step-by-step explanation:

first of all, all answer options are basically wrong, because an area is always measured in units² (and not just in units).

the blue colored area is the area of the whole square minus the area of the circle.

the side length of the square is 2 times the radius of the circle (the diameter) : 2×12 = 24 units.

so, the area of the square is

24² = 576 units²

the are of the circle is

pi×r² = pi×12² = 144pi units²

so, the blue area is

576 - 144pi = 123.6106579... ≈ 124 units²

therefore, D is the right answer.

6 0

2 years ago

A suncatcher has 6 sections. Each section is in the shape of a parallelogram witha base of 12 cm and a height of 8 cm. What is t

jonny [76]

Answer:

576 cm²

Step-by-step explanation:

Given:

Number of sections in a suncatcher (n) = 6

Each section is in the shape of a parallelogram.

Base of parallelogram = 12 cm

Height of parallelogram = 8 cm

Now, area of a parallelogram is given as:

Area of parallelogram = Base × Height

Area of 1 parallelogram = 12 cm × 8 cm = 96 cm²

Now, there are 6 parallelogram shaped sections.

So, area of the sections = area of 1 section × total number of sections

∴ Area of 6 sections = 96 cm² × 6 = 576 cm²

Therefore, the total area of the sections of a suncatcher is 576 cm².

5 0

3 years ago